[BAEL-9555] - Created a core-java-modules folder
This commit is contained in:
amit2103
25
core-java-modules/core-java/.gitignore
vendored
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25
core-java-modules/core-java/.gitignore
vendored
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@@ -0,0 +1,25 @@
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*.class
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0.*
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#folders#
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/target
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/neoDb*
|
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/data
|
||||
/src/main/webapp/WEB-INF/classes
|
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*/META-INF/*
|
||||
.resourceCache
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|
||||
# Packaged files #
|
||||
*.jar
|
||||
*.war
|
||||
*.ear
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||||
|
||||
# Files generated by integration tests
|
||||
backup-pom.xml
|
||||
/bin/
|
||||
/temp
|
||||
|
||||
#IntelliJ specific
|
||||
.idea/
|
||||
*.iml
|
||||
53
core-java-modules/core-java/README.md
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53
core-java-modules/core-java/README.md
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@@ -0,0 +1,53 @@
|
||||
=========
|
||||
|
||||
## Core Java Cookbooks and Examples
|
||||
|
||||
### Relevant Articles:
|
||||
- [Java Timer](http://www.baeldung.com/java-timer-and-timertask)
|
||||
- [How to Run a Shell Command in Java](http://www.baeldung.com/run-shell-command-in-java)
|
||||
- [How to Print Screen in Java](http://www.baeldung.com/print-screen-in-java)
|
||||
- [A Guide To Java Regular Expressions API](http://www.baeldung.com/regular-expressions-java)
|
||||
- [Getting Started with Java Properties](http://www.baeldung.com/java-properties)
|
||||
- [Pattern Search with Grep in Java](http://www.baeldung.com/grep-in-java)
|
||||
- [How to Create an Executable JAR with Maven](http://www.baeldung.com/executable-jar-with-maven)
|
||||
- [Introduction to Nashorn](http://www.baeldung.com/java-nashorn)
|
||||
- [Java Money and the Currency API](http://www.baeldung.com/java-money-and-currency)
|
||||
- [JVM Log Forging](http://www.baeldung.com/jvm-log-forging)
|
||||
- [How to Add a Single Element to a Stream](http://www.baeldung.com/java-stream-append-prepend)
|
||||
- [How to Find all Getters Returning Null](http://www.baeldung.com/java-getters-returning-null)
|
||||
- [How to Get a Name of a Method Being Executed?](http://www.baeldung.com/java-name-of-executing-method)
|
||||
- [Introduction to Java Serialization](http://www.baeldung.com/java-serialization)
|
||||
- [Guide to UUID in Java](http://www.baeldung.com/java-uuid)
|
||||
- [Guide to Escaping Characters in Java RegExps](http://www.baeldung.com/java-regexp-escape-char)
|
||||
- [Creating a Java Compiler Plugin](http://www.baeldung.com/java-build-compiler-plugin)
|
||||
- [Quick Guide to Java Stack](http://www.baeldung.com/java-stack)
|
||||
- [Compiling Java *.class Files with javac](http://www.baeldung.com/javac)
|
||||
- [Introduction to Javadoc](http://www.baeldung.com/javadoc)
|
||||
- [Guide to the Externalizable Interface in Java](http://www.baeldung.com/java-externalizable)
|
||||
- [How to Detect the OS Using Java](http://www.baeldung.com/java-detect-os)
|
||||
- [ASCII Art in Java](http://www.baeldung.com/ascii-art-in-java)
|
||||
- [What is the serialVersionUID?](http://www.baeldung.com/java-serial-version-uid)
|
||||
- [A Guide to the ResourceBundle](http://www.baeldung.com/java-resourcebundle)
|
||||
- [Class Loaders in Java](http://www.baeldung.com/java-classloaders)
|
||||
- [Guide to the Java Clock Class](http://www.baeldung.com/java-clock)
|
||||
- [Importance of Main Manifest Attribute in a Self-Executing JAR](http://www.baeldung.com/java-jar-executable-manifest-main-class)
|
||||
- [Java Global Exception Handler](http://www.baeldung.com/java-global-exception-handler)
|
||||
- [How to Get the Size of an Object in Java](http://www.baeldung.com/java-size-of-object)
|
||||
- [Guide to Java Instrumentation](http://www.baeldung.com/java-instrumentation)
|
||||
- [Common Java Exceptions](http://www.baeldung.com/java-common-exceptions)
|
||||
- [Throw Exception in Optional in Java 8](https://www.baeldung.com/java-optional-throw-exception)
|
||||
- [Merging java.util.Properties Objects](https://www.baeldung.com/java-merging-properties)
|
||||
- [Merging java.util.Properties Objects](https://www.baeldung.com/java-merging-properties)
|
||||
- [Java – Try with Resources](https://www.baeldung.com/java-try-with-resources)
|
||||
- [Abstract Classes in Java](https://www.baeldung.com/java-abstract-class)
|
||||
- [Guide to Character Encoding](https://www.baeldung.com/java-char-encoding)
|
||||
- [Graphs in Java](https://www.baeldung.com/java-graphs)
|
||||
- [Console I/O in Java](http://www.baeldung.com/java-console-input-output)
|
||||
- [Formatting with printf() in Java](https://www.baeldung.com/java-printstream-printf)
|
||||
- [Retrieve Fields from a Java Class Using Reflection](https://www.baeldung.com/java-reflection-class-fields)
|
||||
- [Introduction to Basic Syntax in Java](https://www.baeldung.com/java-syntax)
|
||||
- [Using Curl in Java](https://www.baeldung.com/java-curl)
|
||||
- [Finding Leap Years in Java](https://www.baeldung.com/java-leap-year)
|
||||
- [Java Bitwise Operators](https://www.baeldung.com/java-bitwise-operators)
|
||||
- [Guide to Creating and Running a Jar File in Java](https://www.baeldung.com/java-create-jar)
|
||||
- [Making a JSON POST Request With HttpURLConnection](https://www.baeldung.com/httpurlconnection-post)
|
||||
95
core-java-modules/core-java/customers.xml
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95
core-java-modules/core-java/customers.xml
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|
||||
<?xml version="1.0"?>
|
||||
<webRowSet xmlns="http://java.sun.com/xml/ns/jdbc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://java.sun.com/xml/ns/jdbc http://java.sun.com/xml/ns/jdbc/webrowset.xsd">
|
||||
<properties>
|
||||
<command>SELECT * FROM customers</command>
|
||||
<concurrency>1008</concurrency>
|
||||
<datasource><null/></datasource>
|
||||
<escape-processing>true</escape-processing>
|
||||
<fetch-direction>1000</fetch-direction>
|
||||
<fetch-size>0</fetch-size>
|
||||
<isolation-level>2</isolation-level>
|
||||
<key-columns>
|
||||
</key-columns>
|
||||
<map>
|
||||
</map>
|
||||
<max-field-size>0</max-field-size>
|
||||
<max-rows>0</max-rows>
|
||||
<query-timeout>0</query-timeout>
|
||||
<read-only>true</read-only>
|
||||
<rowset-type>ResultSet.TYPE_SCROLL_INSENSITIVE</rowset-type>
|
||||
<show-deleted>false</show-deleted>
|
||||
<table-name>customers</table-name>
|
||||
<url>jdbc:h2:mem:testdb</url>
|
||||
<sync-provider>
|
||||
<sync-provider-name>com.sun.rowset.providers.RIOptimisticProvider</sync-provider-name>
|
||||
<sync-provider-vendor>Oracle Corporation</sync-provider-vendor>
|
||||
<sync-provider-version>1.0</sync-provider-version>
|
||||
<sync-provider-grade>2</sync-provider-grade>
|
||||
<data-source-lock>1</data-source-lock>
|
||||
</sync-provider>
|
||||
</properties>
|
||||
<metadata>
|
||||
<column-count>2</column-count>
|
||||
<column-definition>
|
||||
<column-index>1</column-index>
|
||||
<auto-increment>false</auto-increment>
|
||||
<case-sensitive>true</case-sensitive>
|
||||
<currency>false</currency>
|
||||
<nullable>0</nullable>
|
||||
<signed>true</signed>
|
||||
<searchable>true</searchable>
|
||||
<column-display-size>11</column-display-size>
|
||||
<column-label>ID</column-label>
|
||||
<column-name>ID</column-name>
|
||||
<schema-name>PUBLIC</schema-name>
|
||||
<column-precision>10</column-precision>
|
||||
<column-scale>0</column-scale>
|
||||
<table-name>CUSTOMERS</table-name>
|
||||
<catalog-name>TESTDB</catalog-name>
|
||||
<column-type>4</column-type>
|
||||
<column-type-name>INTEGER</column-type-name>
|
||||
</column-definition>
|
||||
<column-definition>
|
||||
<column-index>2</column-index>
|
||||
<auto-increment>false</auto-increment>
|
||||
<case-sensitive>true</case-sensitive>
|
||||
<currency>false</currency>
|
||||
<nullable>0</nullable>
|
||||
<signed>true</signed>
|
||||
<searchable>true</searchable>
|
||||
<column-display-size>50</column-display-size>
|
||||
<column-label>NAME</column-label>
|
||||
<column-name>NAME</column-name>
|
||||
<schema-name>PUBLIC</schema-name>
|
||||
<column-precision>50</column-precision>
|
||||
<column-scale>0</column-scale>
|
||||
<table-name>CUSTOMERS</table-name>
|
||||
<catalog-name>TESTDB</catalog-name>
|
||||
<column-type>12</column-type>
|
||||
<column-type-name>VARCHAR</column-type-name>
|
||||
</column-definition>
|
||||
</metadata>
|
||||
<data>
|
||||
<currentRow>
|
||||
<columnValue>1</columnValue>
|
||||
<columnValue>Customer1</columnValue>
|
||||
</currentRow>
|
||||
<currentRow>
|
||||
<columnValue>2</columnValue>
|
||||
<columnValue>Customer2</columnValue>
|
||||
</currentRow>
|
||||
<currentRow>
|
||||
<columnValue>3</columnValue>
|
||||
<columnValue>Customer3</columnValue>
|
||||
</currentRow>
|
||||
<currentRow>
|
||||
<columnValue>4</columnValue>
|
||||
<columnValue>Customer4</columnValue>
|
||||
</currentRow>
|
||||
<currentRow>
|
||||
<columnValue>5</columnValue>
|
||||
<columnValue>Customer5</columnValue>
|
||||
</currentRow>
|
||||
</data>
|
||||
</webRowSet>
|
||||
BIN
core-java-modules/core-java/externalizable.txt
Normal file
BIN
core-java-modules/core-java/externalizable.txt
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Binary file not shown.
492
core-java-modules/core-java/pom.xml
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492
core-java-modules/core-java/pom.xml
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|
||||
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>core-java</artifactId>
|
||||
<version>0.1.0-SNAPSHOT</version>
|
||||
<name>core-java</name>
|
||||
<packaging>jar</packaging>
|
||||
|
||||
<parent>
|
||||
<groupId>com.baeldung</groupId>
|
||||
<artifactId>parent-java</artifactId>
|
||||
<version>0.0.1-SNAPSHOT</version>
|
||||
<relativePath>../../parent-java</relativePath>
|
||||
</parent>
|
||||
|
||||
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>commons-io</groupId>
|
||||
<artifactId>commons-io</artifactId>
|
||||
<version>${commons-io.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.apache.commons</groupId>
|
||||
<artifactId>commons-lang3</artifactId>
|
||||
<version>${commons-lang3.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.unix4j</groupId>
|
||||
<artifactId>unix4j-command</artifactId>
|
||||
<version>${unix4j.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.googlecode.grep4j</groupId>
|
||||
<artifactId>grep4j</artifactId>
|
||||
<version>${grep4j.version}</version>
|
||||
</dependency>
|
||||
<!-- web -->
|
||||
<!-- marshalling -->
|
||||
<dependency>
|
||||
<groupId>com.fasterxml.jackson.core</groupId>
|
||||
<artifactId>jackson-databind</artifactId>
|
||||
<version>${jackson.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.google.code.gson</groupId>
|
||||
<artifactId>gson</artifactId>
|
||||
<version>${gson.version}</version>
|
||||
</dependency>
|
||||
<!-- logging -->
|
||||
<dependency>
|
||||
<groupId>log4j</groupId>
|
||||
<artifactId>log4j</artifactId>
|
||||
<version>${log4j.version}</version>
|
||||
</dependency>
|
||||
<dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
|
||||
<groupId>org.slf4j</groupId>
|
||||
<artifactId>log4j-over-slf4j</artifactId>
|
||||
<version>${org.slf4j.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.projectlombok</groupId>
|
||||
<artifactId>lombok</artifactId>
|
||||
<version>${lombok.version}</version>
|
||||
<scope>provided</scope>
|
||||
</dependency>
|
||||
<!-- test scoped -->
|
||||
<dependency>
|
||||
<groupId>org.assertj</groupId>
|
||||
<artifactId>assertj-core</artifactId>
|
||||
<version>${assertj-core.version}</version>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.javamoney</groupId>
|
||||
<artifactId>moneta</artifactId>
|
||||
<version>${javamoney.moneta.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.owasp.esapi</groupId>
|
||||
<artifactId>esapi</artifactId>
|
||||
<version>${esapi.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.sun.messaging.mq</groupId>
|
||||
<artifactId>fscontext</artifactId>
|
||||
<version>${fscontext.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.codepoetics</groupId>
|
||||
<artifactId>protonpack</artifactId>
|
||||
<version>${protonpack.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>one.util</groupId>
|
||||
<artifactId>streamex</artifactId>
|
||||
<version>${streamex.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>io.vavr</groupId>
|
||||
<artifactId>vavr</artifactId>
|
||||
<version>${vavr.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.openjdk.jmh</groupId>
|
||||
<artifactId>jmh-core</artifactId>
|
||||
<version>${jmh-core.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>org.openjdk.jmh</groupId>
|
||||
<artifactId>jmh-generator-annprocess</artifactId>
|
||||
<version>${jmh-generator-annprocess.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.h2database</groupId>
|
||||
<artifactId>h2</artifactId>
|
||||
<version>${h2database.version}</version>
|
||||
</dependency>
|
||||
<!-- instrumentation -->
|
||||
<dependency>
|
||||
<groupId>org.javassist</groupId>
|
||||
<artifactId>javassist</artifactId>
|
||||
<version>${javaassist.version}</version>
|
||||
</dependency>
|
||||
<dependency>
|
||||
<groupId>com.sun</groupId>
|
||||
<artifactId>tools</artifactId>
|
||||
<version>${sun.tools.version}</version>
|
||||
<scope>system</scope>
|
||||
<systemPath>${java.home}/../lib/tools.jar</systemPath>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
|
||||
<build>
|
||||
<finalName>core-java</finalName>
|
||||
<resources>
|
||||
<resource>
|
||||
<directory>src/main/resources</directory>
|
||||
<filtering>true</filtering>
|
||||
</resource>
|
||||
</resources>
|
||||
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-dependency-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<id>copy-dependencies</id>
|
||||
<phase>prepare-package</phase>
|
||||
<goals>
|
||||
<goal>copy-dependencies</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<outputDirectory>${project.build.directory}/libs</outputDirectory>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-jar-plugin</artifactId>
|
||||
<version>${maven-jar-plugin.version}</version>
|
||||
<configuration>
|
||||
<archive>
|
||||
<manifest>
|
||||
<addClasspath>true</addClasspath>
|
||||
<classpathPrefix>libs/</classpathPrefix>
|
||||
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
|
||||
</manifest>
|
||||
</archive>
|
||||
</configuration>
|
||||
</plugin>
|
||||
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-assembly-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>package</phase>
|
||||
<goals>
|
||||
<goal>single</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<archiveBaseDirectory>${project.basedir}</archiveBaseDirectory>
|
||||
<archive>
|
||||
<manifest>
|
||||
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
|
||||
</manifest>
|
||||
</archive>
|
||||
<descriptorRefs>
|
||||
<descriptorRef>jar-with-dependencies</descriptorRef>
|
||||
</descriptorRefs>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-shade-plugin</artifactId>
|
||||
<version>${maven-shade-plugin.version}</version>
|
||||
<executions>
|
||||
<execution>
|
||||
<goals>
|
||||
<goal>shade</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<shadedArtifactAttached>true</shadedArtifactAttached>
|
||||
<transformers>
|
||||
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
|
||||
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
|
||||
</transformer>
|
||||
</transformers>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
|
||||
<plugin>
|
||||
<groupId>com.jolira</groupId>
|
||||
<artifactId>onejar-maven-plugin</artifactId>
|
||||
<version>${onejar-maven-plugin.version}</version>
|
||||
<executions>
|
||||
<execution>
|
||||
<configuration>
|
||||
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
|
||||
<attachToBuild>true</attachToBuild>
|
||||
<filename>${project.build.finalName}-onejar.${project.packaging}</filename>
|
||||
</configuration>
|
||||
<goals>
|
||||
<goal>one-jar</goal>
|
||||
</goals>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
|
||||
<plugin>
|
||||
<groupId>org.springframework.boot</groupId>
|
||||
<artifactId>spring-boot-maven-plugin</artifactId>
|
||||
<version>${spring-boot-maven-plugin.version}</version>
|
||||
<executions>
|
||||
<execution>
|
||||
<goals>
|
||||
<goal>repackage</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<classifier>spring-boot</classifier>
|
||||
<mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
|
||||
<plugin>
|
||||
<groupId>org.codehaus.mojo</groupId>
|
||||
<artifactId>exec-maven-plugin</artifactId>
|
||||
<version>${exec-maven-plugin.version}</version>
|
||||
<configuration>
|
||||
<executable>java</executable>
|
||||
<mainClass>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</mainClass>
|
||||
<arguments>
|
||||
<argument>-Xmx300m</argument>
|
||||
<argument>-XX:+UseParallelGC</argument>
|
||||
<argument>-classpath</argument>
|
||||
<classpath />
|
||||
<argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
|
||||
</arguments>
|
||||
</configuration>
|
||||
</plugin>
|
||||
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-javadoc-plugin</artifactId>
|
||||
<version>${maven-javadoc-plugin.version}</version>
|
||||
<configuration>
|
||||
<source>1.8</source>
|
||||
<target>1.8</target>
|
||||
</configuration>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
|
||||
<profiles>
|
||||
<profile>
|
||||
<id>integration</id>
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-surefire-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>integration-test</phase>
|
||||
<goals>
|
||||
<goal>test</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<excludes>
|
||||
<exclude>**/*ManualTest.java</exclude>
|
||||
</excludes>
|
||||
<includes>
|
||||
<include>**/*IntegrationTest.java</include>
|
||||
<include>**/*IntTest.java</include>
|
||||
</includes>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
<configuration>
|
||||
<systemPropertyVariables>
|
||||
<test.mime>json</test.mime>
|
||||
</systemPropertyVariables>
|
||||
</configuration>
|
||||
</plugin>
|
||||
<plugin>
|
||||
<groupId>org.codehaus.mojo</groupId>
|
||||
<artifactId>exec-maven-plugin</artifactId>
|
||||
<version>${exec-maven-plugin.version}</version>
|
||||
<executions>
|
||||
<execution>
|
||||
<id>run-benchmarks</id>
|
||||
<!-- <phase>integration-test</phase> -->
|
||||
<phase>none</phase>
|
||||
<goals>
|
||||
<goal>exec</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<classpathScope>test</classpathScope>
|
||||
<executable>java</executable>
|
||||
<arguments>
|
||||
<argument>-classpath</argument>
|
||||
<classpath />
|
||||
<argument>org.openjdk.jmh.Main</argument>
|
||||
<argument>.*</argument>
|
||||
</arguments>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
</profile>
|
||||
|
||||
<!-- java instrumentation profiles to build jars -->
|
||||
<profile>
|
||||
<id>buildAgentLoader</id>
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-jar-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>package</phase>
|
||||
<goals>
|
||||
<goal>jar</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<classifier>agentLoader</classifier>
|
||||
<classesDirectory>target/classes</classesDirectory>
|
||||
<archive>
|
||||
<manifest>
|
||||
<addClasspath>true</addClasspath>
|
||||
</manifest>
|
||||
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
|
||||
</archive>
|
||||
|
||||
<includes>
|
||||
<include>com/baeldung/instrumentation/application/AgentLoader.class</include>
|
||||
<include>com/baeldung/instrumentation/application/Launcher.class</include>
|
||||
</includes>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
</profile>
|
||||
<profile>
|
||||
<id>buildApplication</id>
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-jar-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>package</phase>
|
||||
<goals>
|
||||
<goal>jar</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<classifier>application</classifier>
|
||||
<classesDirectory>target/classes</classesDirectory>
|
||||
<archive>
|
||||
<manifest>
|
||||
<addClasspath>true</addClasspath>
|
||||
</manifest>
|
||||
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
|
||||
</archive>
|
||||
|
||||
<includes>
|
||||
<include>com/baeldung/instrumentation/application/MyAtm.class</include>
|
||||
<include>com/baeldung/instrumentation/application/MyAtmApplication.class</include>
|
||||
<include>com/baeldung/instrumentation/application/Launcher.class</include>
|
||||
</includes>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
</profile>
|
||||
<profile>
|
||||
<id>buildAgent</id>
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-jar-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<phase>package</phase>
|
||||
<goals>
|
||||
<goal>jar</goal>
|
||||
</goals>
|
||||
<configuration>
|
||||
<classifier>agent</classifier>
|
||||
<classesDirectory>target/classes</classesDirectory>
|
||||
<archive>
|
||||
<manifest>
|
||||
<addClasspath>true</addClasspath>
|
||||
</manifest>
|
||||
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
|
||||
</archive>
|
||||
|
||||
<includes>
|
||||
<include>com/baeldung/instrumentation/agent/AtmTransformer.class</include>
|
||||
<include>com/baeldung/instrumentation/agent/MyInstrumentationAgent.class</include>
|
||||
</includes>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
</profile>
|
||||
</profiles>
|
||||
|
||||
<properties>
|
||||
|
||||
<!-- marshalling -->
|
||||
<gson.version>2.8.2</gson.version>
|
||||
|
||||
<!-- util -->
|
||||
<commons-lang3.version>3.5</commons-lang3.version>
|
||||
<commons-io.version>2.5</commons-io.version>
|
||||
<commons-math3.version>3.6.1</commons-math3.version>
|
||||
<decimal4j.version>1.0.3</decimal4j.version>
|
||||
<unix4j.version>0.4</unix4j.version>
|
||||
<grep4j.version>1.8.7</grep4j.version>
|
||||
<fscontext.version>4.6-b01</fscontext.version>
|
||||
<protonpack.version>1.13</protonpack.version>
|
||||
<streamex.version>0.6.5</streamex.version>
|
||||
<vavr.version>0.9.0</vavr.version>
|
||||
|
||||
<!-- testing -->
|
||||
<assertj-core.version>3.10.0</assertj-core.version>
|
||||
|
||||
<!-- maven plugins -->
|
||||
<maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
|
||||
|
||||
<javamoney.moneta.version>1.1</javamoney.moneta.version>
|
||||
<h2database.version>1.4.197</h2database.version>
|
||||
<esapi.version>2.1.0.1</esapi.version>
|
||||
<jmh-core.version>1.19</jmh-core.version>
|
||||
|
||||
<jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>
|
||||
<maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
|
||||
<maven-jar-plugin.version>3.0.2</maven-jar-plugin.version>
|
||||
<onejar-maven-plugin.version>1.4.4</onejar-maven-plugin.version>
|
||||
<maven-shade-plugin.version>3.1.1</maven-shade-plugin.version>
|
||||
<spring-boot-maven-plugin.version>2.0.3.RELEASE</spring-boot-maven-plugin.version>
|
||||
<exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
|
||||
<icu4j.version>61.1</icu4j.version>
|
||||
<!-- instrumentation -->
|
||||
<javaassist.version>3.21.0-GA</javaassist.version>
|
||||
|
||||
<sun.tools.version>1.8.0</sun.tools.version>
|
||||
</properties>
|
||||
</project>
|
||||
13
core-java-modules/core-java/src/main/java/com/baeldung/.gitignore
vendored
Normal file
13
core-java-modules/core-java/src/main/java/com/baeldung/.gitignore
vendored
Normal file
@@ -0,0 +1,13 @@
|
||||
*.class
|
||||
|
||||
#folders#
|
||||
/target
|
||||
/neoDb*
|
||||
/data
|
||||
/src/main/webapp/WEB-INF/classes
|
||||
*/META-INF/*
|
||||
|
||||
# Packaged files #
|
||||
*.jar
|
||||
*.war
|
||||
*.ear
|
||||
@@ -0,0 +1 @@
|
||||
### Relevant Articles:
|
||||
@@ -0,0 +1,29 @@
|
||||
package com.baeldung.abstractclasses.application;
|
||||
|
||||
import com.baeldung.abstractclasses.filereaders.BaseFileReader;
|
||||
import com.baeldung.abstractclasses.filereaders.LowercaseFileReader;
|
||||
import com.baeldung.abstractclasses.filereaders.UppercaseFileReader;
|
||||
import java.io.IOException;
|
||||
import java.net.URISyntaxException;
|
||||
import java.nio.file.Path;
|
||||
import java.nio.file.Paths;
|
||||
|
||||
public class Application {
|
||||
|
||||
public static void main(String[] args) throws IOException, URISyntaxException {
|
||||
|
||||
Application application = new Application();
|
||||
Path path = application.getPathFromResourcesFile("files/test.txt");
|
||||
BaseFileReader lowercaseFileReader = new LowercaseFileReader(path);
|
||||
lowercaseFileReader.readFile().forEach(line -> System.out.println(line));
|
||||
|
||||
BaseFileReader uppercaseFileReader = new UppercaseFileReader(path);
|
||||
uppercaseFileReader.readFile().forEach(line -> System.out.println(line));
|
||||
|
||||
}
|
||||
|
||||
private Path getPathFromResourcesFile(String filePath) throws URISyntaxException {
|
||||
return Paths.get(getClass().getClassLoader().getResource(filePath).toURI());
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,27 @@
|
||||
package com.baeldung.abstractclasses.filereaders;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Path;
|
||||
import java.util.List;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
public abstract class BaseFileReader {
|
||||
|
||||
protected Path filePath;
|
||||
|
||||
protected BaseFileReader(Path filePath) {
|
||||
this.filePath = filePath;
|
||||
}
|
||||
|
||||
public Path getFilePath() {
|
||||
return filePath;
|
||||
}
|
||||
|
||||
public List<String> readFile() throws IOException {
|
||||
return Files.lines(filePath)
|
||||
.map(this::mapFileLine).collect(Collectors.toList());
|
||||
}
|
||||
|
||||
protected abstract String mapFileLine(String line);
|
||||
}
|
||||
@@ -0,0 +1,15 @@
|
||||
package com.baeldung.abstractclasses.filereaders;
|
||||
|
||||
import java.nio.file.Path;
|
||||
|
||||
public class LowercaseFileReader extends BaseFileReader {
|
||||
|
||||
public LowercaseFileReader(Path filePath) {
|
||||
super(filePath);
|
||||
}
|
||||
|
||||
@Override
|
||||
public String mapFileLine(String line) {
|
||||
return line.toLowerCase();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,15 @@
|
||||
package com.baeldung.abstractclasses.filereaders;
|
||||
|
||||
import java.nio.file.Path;
|
||||
|
||||
public class UppercaseFileReader extends BaseFileReader {
|
||||
|
||||
public UppercaseFileReader(Path filePath) {
|
||||
super(filePath);
|
||||
}
|
||||
|
||||
@Override
|
||||
public String mapFileLine(String line) {
|
||||
return line.toUpperCase();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,62 @@
|
||||
package com.baeldung.asciiart;
|
||||
|
||||
import java.awt.Font;
|
||||
import java.awt.Graphics;
|
||||
import java.awt.Graphics2D;
|
||||
import java.awt.RenderingHints;
|
||||
import java.awt.image.BufferedImage;
|
||||
|
||||
public class AsciiArt {
|
||||
|
||||
public AsciiArt() {
|
||||
}
|
||||
|
||||
public void drawString(String text, String artChar, Settings settings) {
|
||||
BufferedImage image = getImageIntegerMode(settings.width, settings.height);
|
||||
|
||||
Graphics2D graphics2D = getGraphics2D(image.getGraphics(), settings);
|
||||
graphics2D.drawString(text, 6, ((int) (settings.height * 0.67)));
|
||||
|
||||
for (int y = 0; y < settings.height; y++) {
|
||||
StringBuilder stringBuilder = new StringBuilder();
|
||||
|
||||
for (int x = 0; x < settings.width; x++) {
|
||||
stringBuilder.append(image.getRGB(x, y) == -16777216 ? " " : artChar);
|
||||
}
|
||||
|
||||
if (stringBuilder.toString()
|
||||
.trim()
|
||||
.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
System.out.println(stringBuilder);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private BufferedImage getImageIntegerMode(int width, int height) {
|
||||
return new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
||||
}
|
||||
|
||||
private Graphics2D getGraphics2D(Graphics graphics, Settings settings) {
|
||||
graphics.setFont(settings.font);
|
||||
|
||||
Graphics2D graphics2D = (Graphics2D) graphics;
|
||||
graphics2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
|
||||
|
||||
return graphics2D;
|
||||
}
|
||||
|
||||
public class Settings {
|
||||
public Font font;
|
||||
public int width;
|
||||
public int height;
|
||||
|
||||
public Settings(Font font, int width, int height) {
|
||||
this.font = font;
|
||||
this.width = width;
|
||||
this.height = height;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,11 @@
|
||||
package com.baeldung.basicsyntax;
|
||||
|
||||
public class SimpleAddition {
|
||||
|
||||
public static void main(String[] args) {
|
||||
int a = 10;
|
||||
int b = 5;
|
||||
double c = a + b;
|
||||
System.out.println( a + " + " + b + " = " + c);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,32 @@
|
||||
package com.baeldung.classloader;
|
||||
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.File;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
|
||||
public class CustomClassLoader extends ClassLoader {
|
||||
|
||||
@Override
|
||||
public Class findClass(String name) throws ClassNotFoundException {
|
||||
byte[] b = loadClassFromFile(name);
|
||||
return defineClass(name, b, 0, b.length);
|
||||
}
|
||||
|
||||
private byte[] loadClassFromFile(String fileName) {
|
||||
InputStream inputStream = getClass().getClassLoader().getResourceAsStream(
|
||||
fileName.replace('.', File.separatorChar) + ".class");
|
||||
byte[] buffer;
|
||||
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
|
||||
int nextValue = 0;
|
||||
try {
|
||||
while ( (nextValue = inputStream.read()) != -1 ) {
|
||||
byteStream.write(nextValue);
|
||||
}
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
buffer = byteStream.toByteArray();
|
||||
return buffer;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,22 @@
|
||||
package com.baeldung.classloader;
|
||||
|
||||
import com.sun.javafx.util.Logging;
|
||||
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.net.MalformedURLException;
|
||||
import java.net.URL;
|
||||
import java.net.URLConnection;
|
||||
import java.util.ArrayList;
|
||||
|
||||
public class PrintClassLoader {
|
||||
|
||||
public void printClassLoaders() throws ClassNotFoundException {
|
||||
|
||||
System.out.println("Classloader of this class:" + PrintClassLoader.class.getClassLoader());
|
||||
System.out.println("Classloader of Logging:" + Logging.class.getClassLoader());
|
||||
System.out.println("Classloader of ArrayList:" + ArrayList.class.getClassLoader());
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,26 @@
|
||||
package com.baeldung.console;
|
||||
|
||||
import java.io.Console;
|
||||
|
||||
public class ConsoleConsoleClass {
|
||||
|
||||
public static void main(String[] args) {
|
||||
Console console = System.console();
|
||||
|
||||
if (console == null) {
|
||||
System.out.print("No console available");
|
||||
return;
|
||||
}
|
||||
|
||||
String progLanguauge = console.readLine("Enter your favourite programming language: ");
|
||||
console.printf(progLanguauge + " is very interesting!");
|
||||
|
||||
char[] pass = console.readPassword("To finish, enter password: ");
|
||||
|
||||
if ("BAELDUNG".equals(pass.toString().toUpperCase()))
|
||||
console.printf("Good! Regards!");
|
||||
else
|
||||
console.printf("Nice try. Regards.");
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,76 @@
|
||||
package com.baeldung.console;
|
||||
|
||||
import java.io.BufferedReader;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStreamReader;
|
||||
import java.util.Scanner;
|
||||
import java.util.regex.Pattern;
|
||||
|
||||
public class ConsoleScannerClass {
|
||||
|
||||
public static void main(String[] args) {
|
||||
System.out.println("Please enter your name and surname: ");
|
||||
|
||||
Scanner scanner = new Scanner(System.in);
|
||||
|
||||
String nameSurname = scanner.nextLine();
|
||||
|
||||
System.out.println("Please enter your gender: ");
|
||||
|
||||
char gender = scanner.next().charAt(0);
|
||||
|
||||
System.out.println("Please enter your age: ");
|
||||
|
||||
int age = scanner.nextInt();
|
||||
|
||||
System.out.println("Please enter your height in meters: ");
|
||||
|
||||
double height = scanner.nextDouble();
|
||||
|
||||
System.out.println(nameSurname + ", " + age + ", is a great " + (gender == 'm' ? "guy" : "girl") + " with " + height + " meters height" + " and " + (gender == 'm' ? "he" : "she") + " reads Baeldung.");
|
||||
|
||||
System.out.print("Have a good");
|
||||
System.out.print(" one!");
|
||||
|
||||
System.out.println("\nPlease enter number of years of experience as a developer: ");
|
||||
|
||||
BufferedReader buffReader = new BufferedReader(new InputStreamReader(System.in));
|
||||
|
||||
int i = 0;
|
||||
|
||||
try {
|
||||
i = Integer.parseInt(buffReader.readLine());
|
||||
} catch (NumberFormatException e) {
|
||||
// TODO Auto-generated catch block
|
||||
e.printStackTrace();
|
||||
} catch (IOException e) {
|
||||
// TODO Auto-generated catch block
|
||||
e.printStackTrace();
|
||||
}
|
||||
|
||||
System.out.println("You are a " + (i > 5 ? "great" : "good") + " developer!");
|
||||
|
||||
int sum = 0, count = 0;
|
||||
|
||||
System.out.println("Please enter your college degrees. To finish, enter baeldung website url");
|
||||
|
||||
while (scanner.hasNextInt()) {
|
||||
int nmbr = scanner.nextInt();
|
||||
sum += nmbr;
|
||||
count++;
|
||||
}
|
||||
int mean = sum / count;
|
||||
|
||||
System.out.println("Your average degree is " + mean);
|
||||
|
||||
if (scanner.hasNext(Pattern.compile("www.baeldung.com")))
|
||||
System.out.println("Correct!");
|
||||
else
|
||||
System.out.println("Baeldung website url is www.baeldung.com");
|
||||
|
||||
if (scanner != null)
|
||||
scanner.close();
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,29 @@
|
||||
package com.baeldung.curltojava;
|
||||
|
||||
import java.io.BufferedInputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.util.logging.Level;
|
||||
import java.util.logging.Logger;
|
||||
|
||||
public class JavaCurlExamples {
|
||||
|
||||
public static String inputStreamToString(InputStream inputStream) {
|
||||
final int bufferSize = 8 * 1024;
|
||||
byte[] buffer = new byte[bufferSize];
|
||||
final StringBuilder builder = new StringBuilder();
|
||||
try (BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream, bufferSize)) {
|
||||
while (bufferedInputStream.read(buffer) != -1) {
|
||||
builder.append(new String(buffer));
|
||||
}
|
||||
} catch (IOException ex) {
|
||||
Logger.getLogger(JavaCurlExamples.class.getName()).log(Level.SEVERE, null, ex);
|
||||
}
|
||||
return builder.toString();
|
||||
}
|
||||
|
||||
public static void consumeInputStream(InputStream inputStream) {
|
||||
inputStreamToString(inputStream);
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,30 @@
|
||||
package com.baeldung.deserialization;
|
||||
|
||||
import java.io.Serializable;
|
||||
|
||||
public class AppleProduct implements Serializable {
|
||||
|
||||
private static final long serialVersionUID = 1234567L; // user-defined (i.e. not default or generated)
|
||||
// private static final long serialVersionUID = 7654321L; // user-defined (i.e. not default or generated)
|
||||
|
||||
public String headphonePort;
|
||||
public String thunderboltPort;
|
||||
public String lightningPort;
|
||||
|
||||
public String getHeadphonePort() {
|
||||
return headphonePort;
|
||||
}
|
||||
|
||||
public String getThunderboltPort() {
|
||||
return thunderboltPort;
|
||||
}
|
||||
|
||||
public static long getSerialVersionUID() {
|
||||
return serialVersionUID;
|
||||
}
|
||||
|
||||
public String getLightningPort() {
|
||||
return lightningPort;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,28 @@
|
||||
package com.baeldung.deserialization;
|
||||
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.ObjectInputStream;
|
||||
import java.util.Base64;
|
||||
|
||||
public class DeserializationUtility {
|
||||
|
||||
public static void main(String[] args) throws ClassNotFoundException, IOException {
|
||||
|
||||
String serializedObj = "rO0ABXNyACljb20uYmFlbGR1bmcuZGVzZXJpYWxpemF0aW9uLkFwcGxlUHJvZHVjdAAAAAAAEtaHAgADTAANaGVhZHBob25lUG9ydHQAEkxqYXZhL2xhbmcvU3RyaW5nO0wADWxpZ2h0bmluZ1BvcnRxAH4AAUwAD3RodW5kZXJib2x0UG9ydHEAfgABeHB0ABFoZWFkcGhvbmVQb3J0MjAyMHQAEWxpZ2h0bmluZ1BvcnQyMDIwdAATdGh1bmRlcmJvbHRQb3J0MjAyMA==";
|
||||
System.out.println("Deserializing AppleProduct...");
|
||||
AppleProduct deserializedObj = (AppleProduct) deSerializeObjectFromString(serializedObj);
|
||||
System.out.println("Headphone port of AppleProduct:" + deserializedObj.getHeadphonePort());
|
||||
System.out.println("Thunderbolt port of AppleProduct:" + deserializedObj.getThunderboltPort());
|
||||
System.out.println("LightningPort port of AppleProduct:" + deserializedObj.getLightningPort());
|
||||
}
|
||||
|
||||
public static Object deSerializeObjectFromString(String s) throws IOException, ClassNotFoundException {
|
||||
byte[] data = Base64.getDecoder().decode(s);
|
||||
ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(data));
|
||||
Object o = ois.readObject();
|
||||
ois.close();
|
||||
return o;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,31 @@
|
||||
package com.baeldung.deserialization;
|
||||
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.ObjectOutputStream;
|
||||
import java.io.Serializable;
|
||||
import java.util.Base64;
|
||||
|
||||
public class SerializationUtility {
|
||||
|
||||
public static void main(String[] args) throws ClassNotFoundException, IOException {
|
||||
|
||||
AppleProduct macBook = new AppleProduct();
|
||||
macBook.headphonePort = "headphonePort2020";
|
||||
macBook.thunderboltPort = "thunderboltPort2020";
|
||||
macBook.lightningPort = "lightningPort2020";
|
||||
|
||||
String serializedObj = serializeObjectToString(macBook);
|
||||
System.out.println("Serialized AppleProduct object to string:");
|
||||
System.out.println(serializedObj);
|
||||
}
|
||||
|
||||
public static String serializeObjectToString(Serializable o) throws IOException {
|
||||
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
||||
ObjectOutputStream oos = new ObjectOutputStream(baos);
|
||||
oos.writeObject(o);
|
||||
oos.close();
|
||||
return Base64.getEncoder().encodeToString(baos.toByteArray());
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,32 @@
|
||||
package com.baeldung.encoding;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileInputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStreamReader;
|
||||
import java.io.UnsupportedEncodingException;
|
||||
|
||||
public class CharacterEncodingExamples {
|
||||
|
||||
static String readFile(String filePath, String encoding) throws IOException {
|
||||
File file = new File(filePath);
|
||||
StringBuffer buffer = new StringBuffer();
|
||||
try (InputStreamReader isr = new InputStreamReader(new FileInputStream(file), encoding)) {
|
||||
int data;
|
||||
while ((data = isr.read()) != -1) {
|
||||
buffer.append((char) data);
|
||||
}
|
||||
}
|
||||
return buffer.toString();
|
||||
}
|
||||
|
||||
static String convertToBinary(String input, String encoding) throws UnsupportedEncodingException {
|
||||
byte[] bytes = input.getBytes(encoding);
|
||||
StringBuffer buffer = new StringBuffer();
|
||||
for (int b : bytes) {
|
||||
buffer.append(Integer.toBinaryString((b + 256) % 256));
|
||||
buffer.append(" ");
|
||||
}
|
||||
return buffer.toString();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,20 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class Arithmetic {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(Arithmetic.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
try {
|
||||
int result = 30 / 0; // Trying to divide by zero
|
||||
} catch (ArithmeticException e) {
|
||||
LOGGER.error("ArithmeticException caught!");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,24 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class ArrayIndexOutOfBounds {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(ArrayIndexOutOfBounds.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
int[] nums = new int[] { 1, 2, 3 };
|
||||
|
||||
try {
|
||||
int numFromNegativeIndex = nums[-1]; // Trying to access at negative index
|
||||
int numFromGreaterIndex = nums[4]; // Trying to access at greater index
|
||||
int numFromLengthIndex = nums[3]; // Trying to access at index equal to size of the array
|
||||
} catch (ArrayIndexOutOfBoundsException e) {
|
||||
LOGGER.error("ArrayIndexOutOfBoundsException caught");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,36 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
class Animal {
|
||||
|
||||
}
|
||||
|
||||
class Dog extends Animal {
|
||||
|
||||
}
|
||||
|
||||
class Lion extends Animal {
|
||||
|
||||
}
|
||||
|
||||
public class ClassCast {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(ClassCast.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
try {
|
||||
Animal animalOne = new Dog(); // At runtime the instance is dog
|
||||
Dog bruno = (Dog) animalOne; // Downcasting
|
||||
|
||||
Animal animalTwo = new Lion(); // At runtime the instance is animal
|
||||
Dog tommy = (Dog) animalTwo; // Downcasting
|
||||
} catch (ClassCastException e) {
|
||||
LOGGER.error("ClassCastException caught!");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,25 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import java.io.BufferedReader;
|
||||
import java.io.File;
|
||||
import java.io.FileNotFoundException;
|
||||
import java.io.FileReader;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class FileNotFound {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(FileNotFound.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
BufferedReader reader = null;
|
||||
try {
|
||||
reader = new BufferedReader(new FileReader(new File("/invalid/file/location")));
|
||||
} catch (FileNotFoundException e) {
|
||||
LOGGER.error("FileNotFoundException caught!");
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,28 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class GlobalExceptionHandler {
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
Handler globalExceptionHandler = new Handler();
|
||||
Thread.setDefaultUncaughtExceptionHandler(globalExceptionHandler);
|
||||
new GlobalExceptionHandler().performArithmeticOperation(10, 0);
|
||||
}
|
||||
|
||||
public int performArithmeticOperation(int num1, int num2) {
|
||||
return num1/num2;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
class Handler implements Thread.UncaughtExceptionHandler {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(Handler.class);
|
||||
|
||||
public void uncaughtException(Thread t, Throwable e) {
|
||||
LOGGER.info("Unhandled exception caught!");
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,18 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class IllegalArgument {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(IllegalArgument.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
try {
|
||||
Thread.sleep(-1000);
|
||||
} catch (InterruptedException e) {
|
||||
LOGGER.error("IllegalArgumentException caught!");
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,32 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Iterator;
|
||||
import java.util.List;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class IllegalState {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(IllegalState.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
List<Integer> intList = new ArrayList<>();
|
||||
|
||||
for (int i = 0; i < 10; i++) {
|
||||
intList.add(i);
|
||||
}
|
||||
|
||||
Iterator<Integer> intListIterator = intList.iterator(); // Initialized with index at -1
|
||||
|
||||
try {
|
||||
intListIterator.remove(); // IllegalStateException
|
||||
} catch (IllegalStateException e) {
|
||||
LOGGER.error("IllegalStateException caught!");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,28 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
class ChildThread extends Thread {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(ChildThread.class);
|
||||
|
||||
public void run() {
|
||||
try {
|
||||
Thread.sleep(1000);
|
||||
} catch (InterruptedException e) {
|
||||
LOGGER.error("InterruptedException caught!");
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
public class InterruptedExceptionExample {
|
||||
|
||||
public static void main(String[] args) throws InterruptedException {
|
||||
ChildThread childThread = new ChildThread();
|
||||
childThread.start();
|
||||
childThread.interrupt();
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,25 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import java.net.MalformedURLException;
|
||||
import java.net.URL;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class MalformedURL {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(MalformedURL.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
URL baeldungURL = null;
|
||||
|
||||
try {
|
||||
baeldungURL = new URL("malformedurl");
|
||||
} catch (MalformedURLException e) {
|
||||
LOGGER.error("MalformedURLException caught!");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,36 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class NullPointer {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(NullPointer.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
Person personObj = null;
|
||||
|
||||
try {
|
||||
String name = personObj.personName; // Accessing the field of a null object
|
||||
personObj.personName = "Jon Doe"; // Modifying the field of a null object
|
||||
} catch (NullPointerException e) {
|
||||
LOGGER.error("NullPointerException caught!");
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
class Person {
|
||||
|
||||
public String personName;
|
||||
|
||||
public String getPersonName() {
|
||||
return personName;
|
||||
}
|
||||
|
||||
public void setPersonName(String personName) {
|
||||
this.personName = personName;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,23 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class NumberFormat {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(NumberFormat.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
String str1 = "100ABCD";
|
||||
|
||||
try {
|
||||
int x = Integer.parseInt(str1); // Converting string with inappropriate format
|
||||
int y = Integer.valueOf(str1);
|
||||
} catch (NumberFormatException e) {
|
||||
LOGGER.error("NumberFormatException caught!");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,25 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import java.text.DateFormat;
|
||||
import java.text.ParseException;
|
||||
import java.text.SimpleDateFormat;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class ParseExceptionExample {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(ParseExceptionExample.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
DateFormat format = new SimpleDateFormat("MM, dd, yyyy");
|
||||
|
||||
try {
|
||||
format.parse("01, , 2010");
|
||||
} catch (ParseException e) {
|
||||
LOGGER.error("ParseException caught!");
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,30 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.apache.commons.lang3.exception.ExceptionUtils;
|
||||
|
||||
import java.io.PrintWriter;
|
||||
import java.io.StringWriter;
|
||||
|
||||
public class StackTraceToString {
|
||||
|
||||
public static void main(String[] args) {
|
||||
// Convert a StackTrace to String using core java
|
||||
try {
|
||||
throw new NullPointerException();
|
||||
} catch (Exception e) {
|
||||
StringWriter sw = new StringWriter();
|
||||
PrintWriter pw = new PrintWriter(sw);
|
||||
e.printStackTrace(pw);
|
||||
|
||||
System.out.println(sw.toString());
|
||||
}
|
||||
|
||||
// Convert a StackTrace to String using Apache Commons
|
||||
try {
|
||||
throw new IndexOutOfBoundsException();
|
||||
} catch (Exception e) {
|
||||
System.out.println(ExceptionUtils.getStackTrace(e));
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,23 @@
|
||||
package com.baeldung.exceptions;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class StringIndexOutOfBounds {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(StringIndexOutOfBounds.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
String str = "Hello World";
|
||||
|
||||
try {
|
||||
char charAtNegativeIndex = str.charAt(-1); // Trying to access at negative index
|
||||
char charAtLengthIndex = str.charAt(11); // Trying to access at index equal to size of the string
|
||||
} catch (StringIndexOutOfBoundsException e) {
|
||||
LOGGER.error("StringIndexOutOfBoundsException caught");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,11 @@
|
||||
package com.baeldung.executable;
|
||||
|
||||
import javax.swing.JOptionPane;
|
||||
|
||||
public class ExecutableMavenJar {
|
||||
|
||||
public static void main(String[] args) {
|
||||
JOptionPane.showMessageDialog(null, "It worked!", "Executable Jar with Maven", 1);
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,23 @@
|
||||
package com.baeldung.externalizable;
|
||||
|
||||
import java.io.*;
|
||||
|
||||
public class Community implements Serializable {
|
||||
|
||||
private int id;
|
||||
|
||||
public int getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(int id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return "Community{" +
|
||||
"id=" + id +
|
||||
'}';
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,62 @@
|
||||
package com.baeldung.externalizable;
|
||||
|
||||
import java.io.Externalizable;
|
||||
import java.io.IOException;
|
||||
import java.io.ObjectInput;
|
||||
import java.io.ObjectOutput;
|
||||
|
||||
public class Country implements Externalizable {
|
||||
|
||||
private static final long serialVersionUID = 1L;
|
||||
|
||||
private String name;
|
||||
private String capital;
|
||||
private int code;
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public void setName(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
public String getCapital() {
|
||||
return capital;
|
||||
}
|
||||
|
||||
public void setCapital(String capital) {
|
||||
this.capital = capital;
|
||||
}
|
||||
|
||||
public int getCode() {
|
||||
return code;
|
||||
}
|
||||
|
||||
public void setCode(int code) {
|
||||
this.code = code;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeExternal(ObjectOutput out) throws IOException {
|
||||
out.writeUTF(name);
|
||||
out.writeUTF(capital);
|
||||
out.writeInt(code);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
|
||||
this.name = in.readUTF();
|
||||
this.capital = in.readUTF();
|
||||
this.code = in.readInt();
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return "Country{" +
|
||||
"name='" + name + '\'' +
|
||||
", capital='" + capital + '\'' +
|
||||
", code=" + code +
|
||||
'}';
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,57 @@
|
||||
package com.baeldung.externalizable;
|
||||
|
||||
import java.io.Externalizable;
|
||||
import java.io.IOException;
|
||||
import java.io.ObjectInput;
|
||||
import java.io.ObjectOutput;
|
||||
|
||||
public class Region extends Country implements Externalizable {
|
||||
|
||||
private static final long serialVersionUID = 1L;
|
||||
|
||||
private String climate;
|
||||
private Double population;
|
||||
private Community community;
|
||||
|
||||
public String getClimate() {
|
||||
return climate;
|
||||
}
|
||||
|
||||
public void setClimate(String climate) {
|
||||
this.climate = climate;
|
||||
}
|
||||
|
||||
public Double getPopulation() {
|
||||
return population;
|
||||
}
|
||||
|
||||
public void setPopulation(Double population) {
|
||||
this.population = population;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeExternal(ObjectOutput out) throws IOException {
|
||||
super.writeExternal(out);
|
||||
out.writeUTF(climate);
|
||||
community = new Community();
|
||||
community.setId(5);
|
||||
out.writeObject(community);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
|
||||
super.readExternal(in);
|
||||
this.climate = in.readUTF();
|
||||
community = (Community) in.readObject();
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return "Region = {" +
|
||||
"country='" + super.toString() + '\'' +
|
||||
"community='" + community.toString() + '\'' +
|
||||
"climate='" + climate + '\'' +
|
||||
", population=" + population +
|
||||
'}';
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,24 @@
|
||||
package com.baeldung.fileparser;
|
||||
|
||||
import java.io.BufferedReader;
|
||||
import java.io.FileReader;
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
|
||||
public class BufferedReaderExample {
|
||||
|
||||
protected static ArrayList<String> generateArrayListFromFile(String filename) throws IOException {
|
||||
|
||||
ArrayList<String> result = new ArrayList<>();
|
||||
|
||||
try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
|
||||
|
||||
while (br.ready()) {
|
||||
result.add(br.readLine());
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,31 @@
|
||||
package com.baeldung.fileparser;
|
||||
|
||||
import java.io.FileReader;
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
|
||||
public class FileReaderExample {
|
||||
|
||||
protected static ArrayList<String> generateArrayListFromFile(String filename) throws IOException {
|
||||
|
||||
ArrayList<String> result = new ArrayList<>();
|
||||
|
||||
try (FileReader f = new FileReader(filename)) {
|
||||
StringBuffer sb = new StringBuffer();
|
||||
while (f.ready()) {
|
||||
char c = (char) f.read();
|
||||
if (c == '\n') {
|
||||
result.add(sb.toString());
|
||||
sb = new StringBuffer();
|
||||
} else {
|
||||
sb.append(c);
|
||||
}
|
||||
}
|
||||
if (sb.length() > 0) {
|
||||
result.add(sb.toString());
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,18 @@
|
||||
package com.baeldung.fileparser;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Paths;
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
|
||||
public class FilesReadLinesExample {
|
||||
|
||||
protected static ArrayList<String> generateArrayListFromFile(String filename) throws IOException {
|
||||
|
||||
List<String> result = Files.readAllLines(Paths.get(filename));
|
||||
|
||||
return (ArrayList<String>) result;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,24 @@
|
||||
package com.baeldung.fileparser;
|
||||
|
||||
import java.io.FileReader;
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Scanner;
|
||||
|
||||
public class ScannerIntExample {
|
||||
|
||||
protected static ArrayList<Integer> generateArrayListFromFile(String filename) throws IOException {
|
||||
|
||||
ArrayList<Integer> result = new ArrayList<>();
|
||||
|
||||
try (Scanner s = new Scanner(new FileReader(filename))) {
|
||||
|
||||
while (s.hasNext()) {
|
||||
result.add(s.nextInt());
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,24 @@
|
||||
package com.baeldung.fileparser;
|
||||
|
||||
import java.io.FileReader;
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Scanner;
|
||||
|
||||
public class ScannerStringExample {
|
||||
|
||||
protected static ArrayList<String> generateArrayListFromFile(String filename) throws IOException {
|
||||
|
||||
ArrayList<String> result = new ArrayList<>();
|
||||
|
||||
try (Scanner s = new Scanner(new FileReader(filename))) {
|
||||
|
||||
while (s.hasNext()) {
|
||||
result.add(s.nextLine());
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,42 @@
|
||||
package com.baeldung.filesystem.jndi;
|
||||
|
||||
import java.io.File;
|
||||
import java.util.Hashtable;
|
||||
|
||||
import javax.naming.Context;
|
||||
import javax.naming.InitialContext;
|
||||
import javax.naming.NamingException;
|
||||
|
||||
public class LookupFSJNDI {
|
||||
private InitialContext ctx = null;
|
||||
|
||||
public LookupFSJNDI() throws NamingException {
|
||||
super();
|
||||
init();
|
||||
}
|
||||
|
||||
private void init() throws NamingException {
|
||||
Hashtable<String, String> env = new Hashtable<String, String>();
|
||||
|
||||
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
|
||||
// URI to namespace (actual directory)
|
||||
env.put(Context.PROVIDER_URL, "file:./src/test/resources");
|
||||
|
||||
ctx = new InitialContext(env);
|
||||
}
|
||||
|
||||
public InitialContext getCtx() {
|
||||
return ctx;
|
||||
}
|
||||
|
||||
public File getFile(String fileName) {
|
||||
File file;
|
||||
try {
|
||||
file = (File) getCtx().lookup(fileName);
|
||||
} catch (NamingException e) {
|
||||
file = null;
|
||||
}
|
||||
return file;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,101 @@
|
||||
package com.baeldung.graph;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.HashMap;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
public class Graph {
|
||||
private Map<Vertex, List<Vertex>> adjVertices;
|
||||
|
||||
Graph() {
|
||||
this.adjVertices = new HashMap<Vertex, List<Vertex>>();
|
||||
}
|
||||
|
||||
void addVertex(String label) {
|
||||
adjVertices.putIfAbsent(new Vertex(label), new ArrayList<>());
|
||||
}
|
||||
|
||||
void removeVertex(String label) {
|
||||
Vertex v = new Vertex(label);
|
||||
adjVertices.values().stream().map(e -> e.remove(v)).collect(Collectors.toList());
|
||||
adjVertices.remove(new Vertex(label));
|
||||
}
|
||||
|
||||
void addEdge(String label1, String label2) {
|
||||
Vertex v1 = new Vertex(label1);
|
||||
Vertex v2 = new Vertex(label2);
|
||||
adjVertices.get(v1).add(v2);
|
||||
adjVertices.get(v2).add(v1);
|
||||
}
|
||||
|
||||
void removeEdge(String label1, String label2) {
|
||||
Vertex v1 = new Vertex(label1);
|
||||
Vertex v2 = new Vertex(label2);
|
||||
List<Vertex> eV1 = adjVertices.get(v1);
|
||||
List<Vertex> eV2 = adjVertices.get(v2);
|
||||
if (eV1 != null)
|
||||
eV1.remove(v2);
|
||||
if (eV2 != null)
|
||||
eV2.remove(v1);
|
||||
}
|
||||
|
||||
List<Vertex> getAdjVertices(String label) {
|
||||
return adjVertices.get(new Vertex(label));
|
||||
}
|
||||
|
||||
String printGraph() {
|
||||
StringBuffer sb = new StringBuffer();
|
||||
for(Vertex v : adjVertices.keySet()) {
|
||||
sb.append(v);
|
||||
sb.append(adjVertices.get(v));
|
||||
}
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
class Vertex {
|
||||
String label;
|
||||
Vertex(String label) {
|
||||
this.label = label;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
final int prime = 31;
|
||||
int result = 1;
|
||||
result = prime * result + getOuterType().hashCode();
|
||||
result = prime * result + ((label == null) ? 0 : label.hashCode());
|
||||
return result;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object obj) {
|
||||
if (this == obj)
|
||||
return true;
|
||||
if (obj == null)
|
||||
return false;
|
||||
if (getClass() != obj.getClass())
|
||||
return false;
|
||||
Vertex other = (Vertex) obj;
|
||||
if (!getOuterType().equals(other.getOuterType()))
|
||||
return false;
|
||||
if (label == null) {
|
||||
if (other.label != null)
|
||||
return false;
|
||||
} else if (!label.equals(other.label))
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return label;
|
||||
}
|
||||
|
||||
|
||||
private Graph getOuterType() {
|
||||
return Graph.this;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,44 @@
|
||||
package com.baeldung.graph;
|
||||
|
||||
import java.util.LinkedHashSet;
|
||||
import java.util.LinkedList;
|
||||
import java.util.Queue;
|
||||
import java.util.Set;
|
||||
import java.util.Stack;
|
||||
|
||||
import com.baeldung.graph.Graph.Vertex;
|
||||
|
||||
public class GraphTraversal {
|
||||
static Set<String> depthFirstTraversal(Graph graph, String root) {
|
||||
Set<String> visited = new LinkedHashSet<String>();
|
||||
Stack<String> stack = new Stack<String>();
|
||||
stack.push(root);
|
||||
while (!stack.isEmpty()) {
|
||||
String vertex = stack.pop();
|
||||
if (!visited.contains(vertex)) {
|
||||
visited.add(vertex);
|
||||
for (Vertex v : graph.getAdjVertices(vertex)) {
|
||||
stack.push(v.label);
|
||||
}
|
||||
}
|
||||
}
|
||||
return visited;
|
||||
}
|
||||
|
||||
static Set<String> breadthFirstTraversal(Graph graph, String root) {
|
||||
Set<String> visited = new LinkedHashSet<String>();
|
||||
Queue<String> queue = new LinkedList<String>();
|
||||
queue.add(root);
|
||||
visited.add(root);
|
||||
while (!queue.isEmpty()) {
|
||||
String vertex = queue.poll();
|
||||
for (Vertex v : graph.getAdjVertices(vertex)) {
|
||||
if (!visited.contains(v.label)) {
|
||||
visited.add(v.label);
|
||||
queue.add(v.label);
|
||||
}
|
||||
}
|
||||
}
|
||||
return visited;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,70 @@
|
||||
package com.baeldung.instrumentation.agent;
|
||||
|
||||
import javassist.CannotCompileException;
|
||||
import javassist.ClassPool;
|
||||
import javassist.CtClass;
|
||||
import javassist.CtMethod;
|
||||
import javassist.NotFoundException;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.lang.instrument.ClassFileTransformer;
|
||||
import java.lang.instrument.IllegalClassFormatException;
|
||||
import java.security.ProtectionDomain;
|
||||
|
||||
public class AtmTransformer implements ClassFileTransformer {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(AtmTransformer.class);
|
||||
|
||||
private static final String WITHDRAW_MONEY_METHOD = "withdrawMoney";
|
||||
|
||||
/** The internal form class name of the class to transform */
|
||||
private String targetClassName;
|
||||
/** The class loader of the class we want to transform */
|
||||
private ClassLoader targetClassLoader;
|
||||
|
||||
public AtmTransformer(String targetClassName, ClassLoader targetClassLoader) {
|
||||
this.targetClassName = targetClassName;
|
||||
this.targetClassLoader = targetClassLoader;
|
||||
}
|
||||
|
||||
@Override
|
||||
public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined,
|
||||
ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {
|
||||
byte[] byteCode = classfileBuffer;
|
||||
|
||||
String finalTargetClassName = this.targetClassName.replaceAll("\\.", "/"); //replace . with /
|
||||
if (!className.equals(finalTargetClassName)) {
|
||||
return byteCode;
|
||||
}
|
||||
|
||||
if (className.equals(finalTargetClassName) && loader.equals(targetClassLoader)) {
|
||||
LOGGER.info("[Agent] Transforming class MyAtm");
|
||||
try {
|
||||
ClassPool cp = ClassPool.getDefault();
|
||||
CtClass cc = cp.get(targetClassName);
|
||||
CtMethod m = cc.getDeclaredMethod(WITHDRAW_MONEY_METHOD);
|
||||
m.addLocalVariable("startTime", CtClass.longType);
|
||||
m.insertBefore("startTime = System.currentTimeMillis();");
|
||||
|
||||
StringBuilder endBlock = new StringBuilder();
|
||||
|
||||
m.addLocalVariable("endTime", CtClass.longType);
|
||||
m.addLocalVariable("opTime", CtClass.longType);
|
||||
endBlock.append("endTime = System.currentTimeMillis();");
|
||||
endBlock.append("opTime = (endTime-startTime)/1000;");
|
||||
|
||||
endBlock.append("LOGGER.info(\"[Application] Withdrawal operation completed in:\" + opTime + \" seconds!\");");
|
||||
|
||||
m.insertAfter(endBlock.toString());
|
||||
|
||||
byteCode = cc.toBytecode();
|
||||
cc.detach();
|
||||
} catch (NotFoundException | CannotCompileException | IOException e) {
|
||||
LOGGER.error("Exception", e);
|
||||
}
|
||||
}
|
||||
return byteCode;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,59 @@
|
||||
package com.baeldung.instrumentation.agent;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
import java.lang.instrument.Instrumentation;
|
||||
|
||||
public class MyInstrumentationAgent {
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(MyInstrumentationAgent.class);
|
||||
|
||||
public static void premain(String agentArgs, Instrumentation inst) {
|
||||
LOGGER.info("[Agent] In premain method");
|
||||
|
||||
String className = "com.baeldung.instrumentation.application.MyAtm";
|
||||
transformClass(className,inst);
|
||||
}
|
||||
|
||||
public static void agentmain(String agentArgs, Instrumentation inst) {
|
||||
LOGGER.info("[Agent] In agentmain method");
|
||||
|
||||
String className = "com.baeldung.instrumentation.application.MyAtm";
|
||||
transformClass(className,inst);
|
||||
}
|
||||
|
||||
private static void transformClass(String className, Instrumentation instrumentation) {
|
||||
Class<?> targetCls = null;
|
||||
ClassLoader targetClassLoader = null;
|
||||
// see if we can get the class using forName
|
||||
try {
|
||||
targetCls = Class.forName(className);
|
||||
targetClassLoader = targetCls.getClassLoader();
|
||||
transform(targetCls, targetClassLoader, instrumentation);
|
||||
return;
|
||||
} catch (Exception ex) {
|
||||
LOGGER.error("Class [{}] not found with Class.forName");
|
||||
}
|
||||
// otherwise iterate all loaded classes and find what we want
|
||||
for(Class<?> clazz: instrumentation.getAllLoadedClasses()) {
|
||||
if(clazz.getName().equals(className)) {
|
||||
targetCls = clazz;
|
||||
targetClassLoader = targetCls.getClassLoader();
|
||||
transform(targetCls, targetClassLoader, instrumentation);
|
||||
return;
|
||||
}
|
||||
}
|
||||
throw new RuntimeException("Failed to find class [" + className + "]");
|
||||
}
|
||||
|
||||
private static void transform(Class<?> clazz, ClassLoader classLoader, Instrumentation instrumentation) {
|
||||
AtmTransformer dt = new AtmTransformer(clazz.getName(), classLoader);
|
||||
instrumentation.addTransformer(dt, true);
|
||||
try {
|
||||
instrumentation.retransformClasses(clazz);
|
||||
} catch (Exception ex) {
|
||||
throw new RuntimeException("Transform failed for class: [" + clazz.getName() + "]", ex);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,46 @@
|
||||
package com.baeldung.instrumentation.application;
|
||||
|
||||
import com.sun.tools.attach.VirtualMachine;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
import java.io.File;
|
||||
import java.util.Optional;
|
||||
|
||||
/**
|
||||
* Created by adi on 6/10/18.
|
||||
*/
|
||||
public class AgentLoader {
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(AgentLoader.class);
|
||||
|
||||
public static void run(String[] args) {
|
||||
String agentFilePath = "/home/adi/Desktop/agent-1.0.0-jar-with-dependencies.jar";
|
||||
String applicationName = "MyAtmApplication";
|
||||
|
||||
//iterate all jvms and get the first one that matches our application name
|
||||
Optional<String> jvmProcessOpt = Optional.ofNullable(VirtualMachine.list()
|
||||
.stream()
|
||||
.filter(jvm -> {
|
||||
LOGGER.info("jvm:{}", jvm.displayName());
|
||||
return jvm.displayName().contains(applicationName);
|
||||
})
|
||||
.findFirst().get().id());
|
||||
|
||||
if(!jvmProcessOpt.isPresent()) {
|
||||
LOGGER.error("Target Application not found");
|
||||
return;
|
||||
}
|
||||
File agentFile = new File(agentFilePath);
|
||||
try {
|
||||
String jvmPid = jvmProcessOpt.get();
|
||||
LOGGER.info("Attaching to target JVM with PID: " + jvmPid);
|
||||
VirtualMachine jvm = VirtualMachine.attach(jvmPid);
|
||||
jvm.loadAgent(agentFile.getAbsolutePath());
|
||||
jvm.detach();
|
||||
LOGGER.info("Attached to target JVM and loaded Java agent successfully");
|
||||
} catch (Exception e) {
|
||||
throw new RuntimeException(e);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,14 @@
|
||||
package com.baeldung.instrumentation.application;
|
||||
|
||||
/**
|
||||
* Created by adi on 6/14/18.
|
||||
*/
|
||||
public class Launcher {
|
||||
public static void main(String[] args) throws Exception {
|
||||
if(args[0].equals("StartMyAtmApplication")) {
|
||||
new MyAtmApplication().run(args);
|
||||
} else if(args[0].equals("LoadAgent")) {
|
||||
new AgentLoader().run(args);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,19 @@
|
||||
package com.baeldung.instrumentation.application;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
/**
|
||||
* Created by adi on 6/11/18.
|
||||
*/
|
||||
public class MyAtm {
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(MyAtm.class);
|
||||
|
||||
private static final int account = 10;
|
||||
|
||||
public static void withdrawMoney(int amount) throws InterruptedException {
|
||||
Thread.sleep(2000l); //processing going on here
|
||||
LOGGER.info("[Application] Successful Withdrawal of [{}] units!", amount);
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,19 @@
|
||||
package com.baeldung.instrumentation.application;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class MyAtmApplication {
|
||||
|
||||
private static Logger LOGGER = LoggerFactory.getLogger(MyAtmApplication.class);
|
||||
|
||||
public static void run(String[] args) throws Exception {
|
||||
LOGGER.info("[Application] Starting ATM application");
|
||||
MyAtm.withdrawMoney(Integer.parseInt(args[2]));
|
||||
|
||||
Thread.sleep(Long.valueOf(args[1]));
|
||||
|
||||
MyAtm.withdrawMoney(Integer.parseInt(args[3]));
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,9 @@
|
||||
package com.baeldung.jar;
|
||||
|
||||
public class JarExample {
|
||||
|
||||
public static void main(String[] args) {
|
||||
System.out.println("Hello Baeldung Reader!");
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
Main-Class: com.baeldung.jar.JarExample
|
||||
@@ -0,0 +1,16 @@
|
||||
package com.baeldung.javac;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
|
||||
public class Data {
|
||||
List<String> textList = new ArrayList();
|
||||
|
||||
public void addText(String text) {
|
||||
textList.add(text);
|
||||
}
|
||||
|
||||
public List getTextList() {
|
||||
return this.textList;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,22 @@
|
||||
package com.baeldung.javadoc;
|
||||
|
||||
public class Person {
|
||||
/**
|
||||
* This is a first name
|
||||
*/
|
||||
private String firstName;
|
||||
private String lastName;
|
||||
|
||||
public String getFirstName() {
|
||||
return firstName;
|
||||
}
|
||||
public void setFirstName(String firstName) {
|
||||
this.firstName = firstName;
|
||||
}
|
||||
public String getLastName() {
|
||||
return lastName;
|
||||
}
|
||||
public void setLastName(String lastName) {
|
||||
this.lastName = lastName;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,70 @@
|
||||
package com.baeldung.javadoc;
|
||||
|
||||
/**
|
||||
* Hero is the main entity we will be using to . . .
|
||||
* @author Captain America
|
||||
*
|
||||
*/
|
||||
public class SuperHero extends Person {
|
||||
|
||||
/**
|
||||
* The public name of a hero that is common knowledge
|
||||
*/
|
||||
private String heroName;
|
||||
private String uniquePower;
|
||||
private int health;
|
||||
private int defense;
|
||||
|
||||
/**
|
||||
* <p>This is a simple description of the method. . .
|
||||
* <a href="http://www.supermanisthegreatest.com">Superman!</a>
|
||||
* </p>
|
||||
* @param incomingDamage the amount of incoming damage
|
||||
* @return the amount of health hero has after attack
|
||||
* @see <a href="http://www.link_to_jira/HERO-402">HERO-402</a>
|
||||
* @since 1.0
|
||||
* @deprecated As of version 1.1, use . . . instead
|
||||
* @version 1.2
|
||||
* @throws IllegalArgumentException if incomingDamage is negative
|
||||
*/
|
||||
public int successfullyAttacked(int incomingDamage, String damageType) throws Exception {
|
||||
// do things
|
||||
if (incomingDamage < 0) {
|
||||
throw new IllegalArgumentException ("Cannot cause negative damage");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
public String getHeroName() {
|
||||
return heroName;
|
||||
}
|
||||
|
||||
public void setHeroName(String heroName) {
|
||||
this.heroName = heroName;
|
||||
}
|
||||
|
||||
public String getUniquePower() {
|
||||
return uniquePower;
|
||||
}
|
||||
|
||||
public void setUniquePower(String uniquePower) {
|
||||
this.uniquePower = uniquePower;
|
||||
}
|
||||
|
||||
public int getHealth() {
|
||||
return health;
|
||||
}
|
||||
|
||||
public void setHealth(int health) {
|
||||
this.health = health;
|
||||
}
|
||||
|
||||
public int getDefense() {
|
||||
return defense;
|
||||
}
|
||||
|
||||
public void setDefense(int defense) {
|
||||
this.defense = defense;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,28 @@
|
||||
package com.baeldung.logforging;
|
||||
|
||||
import org.owasp.esapi.ESAPI;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class LogForgingDemo {
|
||||
|
||||
private final Logger logger = LoggerFactory.getLogger(LogForgingDemo.class);
|
||||
|
||||
public void addLog(String amount) {
|
||||
logger.info("Amount credited = {}", amount);
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
LogForgingDemo demo = new LogForgingDemo();
|
||||
demo.addLog("300");
|
||||
demo.addLog("300 \n\nweb - 2017-04-12 17:47:08,957 [main] INFO Amount reversed successfully");
|
||||
demo.addLog(encode("300 \n\nweb - 2017-04-12 17:47:08,957 [main] INFO Amount reversed successfully"));
|
||||
}
|
||||
|
||||
public static String encode(String message) {
|
||||
message = message.replace('\n', '_').replace('\r', '_').replace('\t', '_');
|
||||
message = ESAPI.encoder().encodeForHTML(message);
|
||||
return message;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,8 @@
|
||||
package com.baeldung.manifest;
|
||||
|
||||
public class AppExample {
|
||||
|
||||
public static void main(String[] args){
|
||||
System.out.println("AppExample executed!");
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,83 @@
|
||||
package com.baeldung.manifest;
|
||||
|
||||
import java.io.BufferedReader;
|
||||
import java.io.BufferedWriter;
|
||||
import java.io.File;
|
||||
import java.io.FileWriter;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStreamReader;
|
||||
|
||||
public class ExecuteJarFile {
|
||||
|
||||
private static final String DELIMITER = " ";
|
||||
private static final String WORK_PATH = "src/main/java/com/baeldung/manifest";
|
||||
private static final String MANIFEST_MF_PATH = WORK_PATH + "/MANIFEST.MF";
|
||||
private static final String MAIN_MANIFEST_ATTRIBUTE = "Main-Class: com.baeldung.manifest.AppExample";
|
||||
|
||||
private static final String COMPILE_COMMAND = "javac -d . AppExample.java";
|
||||
private static final String CREATE_JAR_WITHOUT_MF_ATT_COMMAND = "jar cvf example.jar com/baeldung/manifest/AppExample.class";
|
||||
private static final String CREATE_JAR_WITH_MF_ATT_COMMAND = "jar cvmf MANIFEST.MF example.jar com/baeldung/manifest/AppExample.class";
|
||||
private static final String EXECUTE_JAR_COMMAND = "java -jar example.jar";
|
||||
|
||||
public static void main(String[] args) {
|
||||
System.out.println(executeJarWithoutManifestAttribute());
|
||||
System.out.println(executeJarWithManifestAttribute());
|
||||
}
|
||||
|
||||
public static String executeJarWithoutManifestAttribute() {
|
||||
return executeJar(CREATE_JAR_WITHOUT_MF_ATT_COMMAND);
|
||||
}
|
||||
|
||||
public static String executeJarWithManifestAttribute() {
|
||||
createManifestFile();
|
||||
return executeJar(CREATE_JAR_WITH_MF_ATT_COMMAND);
|
||||
}
|
||||
|
||||
private static void createManifestFile() {
|
||||
BufferedWriter writer;
|
||||
try {
|
||||
writer = new BufferedWriter(new FileWriter(MANIFEST_MF_PATH));
|
||||
writer.write(MAIN_MANIFEST_ATTRIBUTE);
|
||||
writer.newLine();
|
||||
writer.close();
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
private static String executeJar(String createJarCommand) {
|
||||
executeCommand(COMPILE_COMMAND);
|
||||
executeCommand(createJarCommand);
|
||||
return executeCommand(EXECUTE_JAR_COMMAND);
|
||||
}
|
||||
|
||||
private static String executeCommand(String command) {
|
||||
String output = null;
|
||||
try {
|
||||
output = collectOutput(runProcess(command));
|
||||
} catch (Exception ex) {
|
||||
System.out.println(ex);
|
||||
}
|
||||
return output;
|
||||
}
|
||||
|
||||
private static String collectOutput(Process process) throws IOException {
|
||||
StringBuffer output = new StringBuffer();
|
||||
BufferedReader outputReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
|
||||
String line = "";
|
||||
while ((line = outputReader.readLine()) != null) {
|
||||
output.append(line + "\n");
|
||||
}
|
||||
return output.toString();
|
||||
}
|
||||
|
||||
private static Process runProcess(String command) throws IOException, InterruptedException {
|
||||
ProcessBuilder builder = new ProcessBuilder(command.split(DELIMITER));
|
||||
builder.directory(new File(WORK_PATH).getAbsoluteFile());
|
||||
builder.redirectErrorStream(true);
|
||||
Process process = builder.start();
|
||||
process.waitFor();
|
||||
return process;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
Main-Class: com.baeldung.manifest.AppExample
|
||||
@@ -0,0 +1,151 @@
|
||||
package com.baeldung.money;
|
||||
|
||||
import java.util.Locale;
|
||||
import java.util.logging.Logger;
|
||||
|
||||
import javax.money.CurrencyUnit;
|
||||
import javax.money.Monetary;
|
||||
import javax.money.MonetaryAmount;
|
||||
import javax.money.UnknownCurrencyException;
|
||||
import javax.money.convert.ConversionQueryBuilder;
|
||||
import javax.money.convert.CurrencyConversion;
|
||||
import javax.money.convert.MonetaryConversions;
|
||||
import javax.money.format.AmountFormatQueryBuilder;
|
||||
import javax.money.format.MonetaryAmountFormat;
|
||||
import javax.money.format.MonetaryFormats;
|
||||
|
||||
import org.javamoney.moneta.FastMoney;
|
||||
import org.javamoney.moneta.Money;
|
||||
import org.javamoney.moneta.format.CurrencyStyle;
|
||||
|
||||
public class JavaMoney {
|
||||
final static Logger LOGGER = Logger.getLogger(JavaMoney.class.getName());
|
||||
CurrencyUnit USD;
|
||||
MonetaryAmount fstAmtUSD;
|
||||
MonetaryAmount fstAmtEUR;
|
||||
MonetaryAmount oneDolar;
|
||||
MonetaryAmount moneyof;
|
||||
MonetaryAmount fastmoneyof;
|
||||
MonetaryAmount roundEUR;
|
||||
MonetaryAmount calcAmtUSD;
|
||||
MonetaryAmount[] monetaryAmounts;
|
||||
MonetaryAmount sumAmtCHF;
|
||||
MonetaryAmount calcMoneyFastMoney;
|
||||
MonetaryAmount convertedAmountEURtoUSD;
|
||||
MonetaryAmount convertedAmountEURtoUSD2;
|
||||
MonetaryAmount convertedAmountUSDtoEUR;
|
||||
MonetaryAmount convertedAmountUSDtoEUR2;
|
||||
MonetaryAmount multiplyAmount;
|
||||
MonetaryAmount divideAmount;
|
||||
MonetaryAmount oneDivThree;
|
||||
CurrencyConversion convEUR;
|
||||
CurrencyConversion convUSD;
|
||||
CurrencyConversion conversionUSD;
|
||||
CurrencyConversion conversionEUR;
|
||||
MonetaryAmount oneEuro;
|
||||
MonetaryAmountFormat formatUSD;
|
||||
MonetaryAmountFormat customFormat;
|
||||
String usFormatted;
|
||||
String customFormatted;
|
||||
|
||||
public JavaMoney() {
|
||||
USD = Monetary.getCurrency("USD");
|
||||
fstAmtUSD = Monetary.getDefaultAmountFactory().setCurrency(USD).setNumber(200.50).create();
|
||||
fstAmtEUR = Monetary.getDefaultAmountFactory().setCurrency("EUR").setNumber(1.30473908).create();
|
||||
oneDolar = Monetary.getDefaultAmountFactory().setCurrency("USD").setNumber(1).create();
|
||||
moneyof = Money.of(12, USD);
|
||||
fastmoneyof = FastMoney.of(2, USD);
|
||||
|
||||
LOGGER.info("First Amount in USD : " + fstAmtUSD);
|
||||
LOGGER.info("First Amount in EUR : " + fstAmtEUR);
|
||||
LOGGER.info("One Dolar : " + oneDolar);
|
||||
LOGGER.info("MoneyOf : " + moneyof);
|
||||
LOGGER.info("FastMoneyOf : " + fastmoneyof);
|
||||
|
||||
try{
|
||||
@SuppressWarnings("unused")
|
||||
CurrencyUnit AAA = Monetary.getCurrency("AAA");
|
||||
} catch (UnknownCurrencyException e) {
|
||||
LOGGER.severe("Unknown Currency");
|
||||
}
|
||||
|
||||
roundEUR = fstAmtEUR.with(Monetary.getDefaultRounding());
|
||||
|
||||
LOGGER.info("Rounded EUR : " + roundEUR);
|
||||
|
||||
calcAmtUSD = Money.of(1, "USD").subtract(fstAmtUSD);
|
||||
|
||||
LOGGER.info("Substracting amounts : " + calcAmtUSD);
|
||||
|
||||
calcMoneyFastMoney = moneyof.subtract(fastmoneyof);
|
||||
|
||||
LOGGER.info("Money & FastMoney operations : " + calcMoneyFastMoney);
|
||||
|
||||
monetaryAmounts =
|
||||
new MonetaryAmount[] {
|
||||
Money.of(100, "CHF"),
|
||||
Money.of(10.20, "CHF"),
|
||||
Money.of(1.15, "CHF"), };
|
||||
sumAmtCHF = Money.of(0, "CHF");
|
||||
for (MonetaryAmount monetaryAmount : monetaryAmounts) {
|
||||
sumAmtCHF = sumAmtCHF.add(monetaryAmount);
|
||||
}
|
||||
|
||||
LOGGER.info("Adding amounts : " + sumAmtCHF);
|
||||
|
||||
multiplyAmount = oneDolar.multiply(0.25);
|
||||
LOGGER.info("Multiply Amount : " + multiplyAmount);
|
||||
|
||||
divideAmount = oneDolar.divide(0.25);
|
||||
LOGGER.info("Divide Amount : " + divideAmount);
|
||||
|
||||
try{
|
||||
oneDivThree = oneDolar.divide(3);
|
||||
}catch (ArithmeticException e) {
|
||||
LOGGER.severe("One divide by Three is an infinite number");
|
||||
}
|
||||
|
||||
convEUR = MonetaryConversions.getConversion(ConversionQueryBuilder.of().setTermCurrency("EUR").build());
|
||||
convUSD = MonetaryConversions.getConversion(ConversionQueryBuilder.of().setTermCurrency(USD).build());
|
||||
|
||||
conversionUSD = MonetaryConversions.getConversion("USD");
|
||||
conversionEUR = MonetaryConversions.getConversion("EUR");
|
||||
|
||||
convertedAmountEURtoUSD = fstAmtEUR.with(conversionUSD);
|
||||
convertedAmountEURtoUSD2 = fstAmtEUR.with(convUSD);
|
||||
convertedAmountUSDtoEUR = oneDolar.with(conversionEUR);
|
||||
convertedAmountUSDtoEUR2 = oneDolar.with(convEUR);
|
||||
LOGGER.info("C1 - " + convertedAmountEURtoUSD);
|
||||
LOGGER.info("C2 - " + convertedAmountEURtoUSD2);
|
||||
LOGGER.info("One Euro -> " + convertedAmountUSDtoEUR);
|
||||
LOGGER.info("One Euro2 -> " + convertedAmountUSDtoEUR2);
|
||||
|
||||
oneEuro = Money.of(1, "EUR");
|
||||
|
||||
if (oneEuro.equals(FastMoney.of(1, "EUR"))) {
|
||||
LOGGER.info("Money == FastMoney");
|
||||
} else {
|
||||
LOGGER.info("Money != FastMoney");
|
||||
}
|
||||
|
||||
if (oneDolar.equals(Money.of(1, "USD"))) {
|
||||
LOGGER.info("Factory == Money");
|
||||
} else {
|
||||
LOGGER.info("Factory != Money");
|
||||
}
|
||||
|
||||
formatUSD = MonetaryFormats.getAmountFormat(Locale.US);
|
||||
usFormatted = formatUSD.format(oneDolar);
|
||||
LOGGER.info("One dolar standard formatted : " + usFormatted);
|
||||
|
||||
customFormat = MonetaryFormats.getAmountFormat(AmountFormatQueryBuilder.of(Locale.US).set(CurrencyStyle.NAME).set("pattern", "00000.00 ¤").build());
|
||||
customFormatted = customFormat.format(oneDolar);
|
||||
LOGGER.info("One dolar custom formatted : " + customFormatted);
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
@SuppressWarnings("unused")
|
||||
JavaMoney java9Money = new JavaMoney();
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,18 @@
|
||||
package com.baeldung.objectsize;
|
||||
|
||||
import java.lang.instrument.Instrumentation;
|
||||
|
||||
public class InstrumentationAgent {
|
||||
private static volatile Instrumentation globalInstrumentation;
|
||||
|
||||
public static void premain(final String agentArgs, final Instrumentation inst) {
|
||||
globalInstrumentation = inst;
|
||||
}
|
||||
|
||||
public static long getObjectSize(final Object object) {
|
||||
if (globalInstrumentation == null) {
|
||||
throw new IllegalStateException("Agent not initialized.");
|
||||
}
|
||||
return globalInstrumentation.getObjectSize(object);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,59 @@
|
||||
package com.baeldung.objectsize;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
|
||||
public class InstrumentationExample {
|
||||
|
||||
public static void printObjectSize(Object object) {
|
||||
System.out.println("Object type: " + object.getClass() + ", size: " + InstrumentationAgent.getObjectSize(object) + " bytes");
|
||||
}
|
||||
|
||||
public static void main(String[] arguments) {
|
||||
String emptyString = "";
|
||||
String string = "Estimating Object Size Using Instrumentation";
|
||||
String[] stringArray = { emptyString, string, "com.baeldung" };
|
||||
String[] anotherStringArray = new String[100];
|
||||
List<String> stringList = new ArrayList<>();
|
||||
StringBuilder stringBuilder = new StringBuilder(100);
|
||||
int maxIntPrimitive = Integer.MAX_VALUE;
|
||||
int minIntPrimitive = Integer.MIN_VALUE;
|
||||
Integer maxInteger = Integer.MAX_VALUE;
|
||||
Integer minInteger = Integer.MIN_VALUE;
|
||||
long zeroLong = 0L;
|
||||
double zeroDouble = 0.0;
|
||||
boolean falseBoolean = false;
|
||||
Object object = new Object();
|
||||
|
||||
class EmptyClass {
|
||||
}
|
||||
EmptyClass emptyClass = new EmptyClass();
|
||||
|
||||
class StringClass {
|
||||
public String s;
|
||||
}
|
||||
StringClass stringClass = new StringClass();
|
||||
|
||||
printObjectSize(emptyString);
|
||||
printObjectSize(string);
|
||||
printObjectSize(stringArray);
|
||||
printObjectSize(anotherStringArray);
|
||||
printObjectSize(stringList);
|
||||
printObjectSize(stringBuilder);
|
||||
printObjectSize(maxIntPrimitive);
|
||||
printObjectSize(minIntPrimitive);
|
||||
printObjectSize(maxInteger);
|
||||
printObjectSize(minInteger);
|
||||
printObjectSize(zeroLong);
|
||||
printObjectSize(zeroDouble);
|
||||
printObjectSize(falseBoolean);
|
||||
printObjectSize(Day.TUESDAY);
|
||||
printObjectSize(object);
|
||||
printObjectSize(emptyClass);
|
||||
printObjectSize(stringClass);
|
||||
}
|
||||
|
||||
public enum Day {
|
||||
MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
Premain-class: com.baeldung.objectsize.InstrumentationAgent
|
||||
@@ -0,0 +1,61 @@
|
||||
package com.baeldung.printf;
|
||||
|
||||
import java.util.Date;
|
||||
import java.util.Locale;
|
||||
|
||||
public class PrintfExamples {
|
||||
|
||||
public static void main(String[] args) {
|
||||
|
||||
printfNewLine();
|
||||
printfChar();
|
||||
printfString();
|
||||
printfNumber();
|
||||
printfDateTime();
|
||||
printfBoolean();
|
||||
}
|
||||
|
||||
private static void printfNewLine() {
|
||||
System.out.printf("baeldung%nline%nterminator");
|
||||
}
|
||||
|
||||
private static void printfString() {
|
||||
System.out.printf("'%s' %n", "baeldung");
|
||||
System.out.printf("'%S' %n", "baeldung");
|
||||
System.out.printf("'%15s' %n", "baeldung");
|
||||
System.out.printf("'%-10s' %n", "baeldung");
|
||||
}
|
||||
|
||||
private static void printfChar() {
|
||||
System.out.printf("%c%n", 's');
|
||||
System.out.printf("%C%n", 's');
|
||||
}
|
||||
|
||||
private static void printfNumber() {
|
||||
System.out.printf("simple integer: %d%n", 10000L);
|
||||
|
||||
System.out.printf(Locale.US, "%,d %n", 10000);
|
||||
System.out.printf(Locale.ITALY, "%,d %n", 10000);
|
||||
|
||||
System.out.printf("%f%n", 5.1473);
|
||||
System.out.printf("'%5.2f'%n", 5.1473);
|
||||
System.out.printf("'%5.2e'%n", 5.1473);
|
||||
}
|
||||
|
||||
private static void printfBoolean() {
|
||||
System.out.printf("%b%n", null);
|
||||
System.out.printf("%B%n", false);
|
||||
System.out.printf("%B%n", 5.3);
|
||||
System.out.printf("%b%n", "random text");
|
||||
}
|
||||
|
||||
private static void printfDateTime() {
|
||||
Date date = new Date();
|
||||
System.out.printf("%tT%n", date);
|
||||
System.out.printf("hours %tH: minutes %tM: seconds %tS%n", date, date, date);
|
||||
System.out.printf("%1$tH:%1$tM:%1$tS %1$tp %1$tL %1$tN %1$tz %n", date);
|
||||
|
||||
System.out.printf("%1$tA %1$tB %1$tY %n", date);
|
||||
System.out.printf("%1$td.%1$tm.%1$ty %n", date);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,2 @@
|
||||
### Relevant Articles:
|
||||
- [How to Print Screen in Java](http://www.baeldung.com/print-screen-in-java)
|
||||
@@ -0,0 +1,23 @@
|
||||
package com.baeldung.printscreen;
|
||||
|
||||
import javax.imageio.ImageIO;
|
||||
import java.awt.*;
|
||||
import java.awt.image.BufferedImage;
|
||||
import java.io.File;
|
||||
|
||||
public class Screenshot {
|
||||
|
||||
private final String path;
|
||||
|
||||
public Screenshot(String path) {
|
||||
this.path = path;
|
||||
}
|
||||
|
||||
public void getScreenshot(int timeToWait) throws Exception {
|
||||
Rectangle rectangle = new Rectangle(Toolkit.getDefaultToolkit()
|
||||
.getScreenSize());
|
||||
Robot robot = new Robot();
|
||||
BufferedImage img = robot.createScreenCapture(rectangle);
|
||||
ImageIO.write(img, "jpg", new File(path));
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,39 @@
|
||||
package com.baeldung.reflection;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
import java.beans.Introspector;
|
||||
import java.beans.PropertyDescriptor;
|
||||
import java.lang.reflect.Method;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
import java.util.function.Predicate;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
class BaeldungReflectionUtils {
|
||||
|
||||
private static final Logger LOG = LoggerFactory.getLogger(BaeldungReflectionUtils.class);
|
||||
|
||||
static List<String> getNullPropertiesList(Customer customer) throws Exception {
|
||||
PropertyDescriptor[] propDescArr = Introspector.getBeanInfo(Customer.class, Object.class).getPropertyDescriptors();
|
||||
|
||||
return Arrays.stream(propDescArr)
|
||||
.filter(nulls(customer))
|
||||
.map(PropertyDescriptor::getName)
|
||||
.collect(Collectors.toList());
|
||||
}
|
||||
|
||||
private static Predicate<PropertyDescriptor> nulls(Customer customer) {
|
||||
return pd -> {
|
||||
boolean result = false;
|
||||
try {
|
||||
Method getterMethod = pd.getReadMethod();
|
||||
result = (getterMethod != null && getterMethod.invoke(customer) == null);
|
||||
} catch (Exception e) {
|
||||
LOG.error("error invoking getter method");
|
||||
}
|
||||
return result;
|
||||
};
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,56 @@
|
||||
package com.baeldung.reflection;
|
||||
|
||||
public class Customer {
|
||||
|
||||
private Integer id;
|
||||
private String name;
|
||||
private String emailId;
|
||||
private Long phoneNumber;
|
||||
|
||||
public Integer getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public void setName(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
public String getEmailId() {
|
||||
return emailId;
|
||||
}
|
||||
|
||||
public void setEmailId(String emailId) {
|
||||
this.emailId = emailId;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return "Customer [id=" + id + ", name=" + name + ", emailId=" + emailId + ", phoneNumber=" +
|
||||
phoneNumber + "]";
|
||||
}
|
||||
|
||||
Customer(Integer id, String name, String emailId, Long phoneNumber) {
|
||||
super();
|
||||
this.id = id;
|
||||
this.name = name;
|
||||
this.emailId = emailId;
|
||||
this.phoneNumber = phoneNumber;
|
||||
}
|
||||
|
||||
public Long getPhoneNumber() {
|
||||
return phoneNumber;
|
||||
}
|
||||
|
||||
public void setPhoneNumber(Long phoneNumber) {
|
||||
this.phoneNumber = phoneNumber;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,7 @@
|
||||
package com.baeldung.reflection;
|
||||
|
||||
public class Employee extends Person {
|
||||
|
||||
public int employeeId;
|
||||
|
||||
}
|
||||
@@ -0,0 +1,7 @@
|
||||
package com.baeldung.reflection;
|
||||
|
||||
public class MonthEmployee extends Employee {
|
||||
|
||||
protected double reward;
|
||||
|
||||
}
|
||||
@@ -0,0 +1,8 @@
|
||||
package com.baeldung.reflection;
|
||||
|
||||
public class Person {
|
||||
|
||||
protected String lastName;
|
||||
private String firstName;
|
||||
|
||||
}
|
||||
@@ -0,0 +1,15 @@
|
||||
package com.baeldung.resourcebundle;
|
||||
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
import java.util.Locale;
|
||||
import java.util.ResourceBundle;
|
||||
|
||||
public class ExampleControl extends ResourceBundle.Control {
|
||||
|
||||
@Override
|
||||
public List<Locale> getCandidateLocales(String s, Locale locale) {
|
||||
return Arrays.asList(new Locale("pl", "PL"));
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,14 @@
|
||||
package com.baeldung.resourcebundle;
|
||||
|
||||
import java.util.ListResourceBundle;
|
||||
|
||||
public class ExampleResource extends ListResourceBundle {
|
||||
|
||||
@Override
|
||||
protected Object[][] getContents() {
|
||||
return new Object[][] {
|
||||
{ "greeting", "hello" }
|
||||
};
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,15 @@
|
||||
package com.baeldung.resourcebundle;
|
||||
|
||||
import java.util.ListResourceBundle;
|
||||
|
||||
public class ExampleResource_pl extends ListResourceBundle {
|
||||
|
||||
@Override
|
||||
protected Object[][] getContents() {
|
||||
return new Object[][] {
|
||||
{ "greeting", "cześć" },
|
||||
{ "language", "polish" },
|
||||
};
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,17 @@
|
||||
package com.baeldung.resourcebundle;
|
||||
|
||||
import java.math.BigDecimal;
|
||||
import java.util.ListResourceBundle;
|
||||
|
||||
public class ExampleResource_pl_PL extends ListResourceBundle {
|
||||
|
||||
@Override
|
||||
protected Object[][] getContents() {
|
||||
return new Object[][] {
|
||||
{ "currency", "polish zloty" },
|
||||
{ "toUsdRate", new BigDecimal("3.401") },
|
||||
{ "cities", new String[] { "Warsaw", "Cracow" } }
|
||||
};
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,15 @@
|
||||
package com.baeldung.serialization;
|
||||
|
||||
public class Address {
|
||||
|
||||
private int houseNumber;
|
||||
|
||||
public int getHouseNumber() {
|
||||
return houseNumber;
|
||||
}
|
||||
|
||||
public void setHouseNumber(int houseNumber) {
|
||||
this.houseNumber = houseNumber;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,44 @@
|
||||
package com.baeldung.serialization;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.ObjectInputStream;
|
||||
import java.io.ObjectOutputStream;
|
||||
import java.io.Serializable;
|
||||
|
||||
public class Employee implements Serializable {
|
||||
|
||||
private static final long serialVersionUID = 1L;
|
||||
|
||||
private transient Address address; // not an serializable object
|
||||
private Person person;
|
||||
|
||||
public Address getAddress() {
|
||||
return address;
|
||||
}
|
||||
|
||||
public void setAddress(Address address) {
|
||||
this.address = address;
|
||||
}
|
||||
|
||||
public Person getPerson() {
|
||||
return person;
|
||||
}
|
||||
|
||||
public void setPerson(Person person) {
|
||||
this.person = person;
|
||||
}
|
||||
|
||||
private void writeObject(ObjectOutputStream oos) throws IOException {
|
||||
oos.defaultWriteObject();
|
||||
oos.writeObject(address.getHouseNumber());
|
||||
}
|
||||
|
||||
private void readObject(ObjectInputStream ois) throws ClassNotFoundException, IOException {
|
||||
ois.defaultReadObject();
|
||||
Integer houseNumber = (Integer) ois.readObject();
|
||||
Address a = new Address();
|
||||
a.setHouseNumber(houseNumber);
|
||||
this.setAddress(a);
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,30 @@
|
||||
package com.baeldung.serialization;
|
||||
import java.io.Serializable;
|
||||
|
||||
public class Person implements Serializable {
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
private static final long serialVersionUID = 1L;
|
||||
|
||||
private int age;
|
||||
private String name;
|
||||
|
||||
public int getAge() {
|
||||
return age;
|
||||
}
|
||||
|
||||
public void setAge(int age) {
|
||||
this.age = age;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public void setName(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,33 @@
|
||||
package com.baeldung.staticclass;
|
||||
|
||||
public class Pizza {
|
||||
|
||||
private static String cookedCount;
|
||||
private boolean isThinCrust;
|
||||
|
||||
// Accessible globally
|
||||
public static class PizzaSalesCounter {
|
||||
|
||||
private static String orderedCount;
|
||||
public static String deliveredCount;
|
||||
|
||||
PizzaSalesCounter() {
|
||||
System.out.println("Static field of enclosing class is "
|
||||
+ Pizza.cookedCount);
|
||||
System.out.println("Non-static field of enclosing class is "
|
||||
+ new Pizza().isThinCrust);
|
||||
}
|
||||
}
|
||||
|
||||
Pizza() {
|
||||
System.out.println("Non private static field of static class is "
|
||||
+ PizzaSalesCounter.deliveredCount);
|
||||
System.out.println("Private static field of static class is "
|
||||
+ PizzaSalesCounter.orderedCount);
|
||||
}
|
||||
|
||||
public static void main(String[] a) {
|
||||
// Create instance of the static class without an instance of enclosing class
|
||||
new Pizza.PizzaSalesCounter();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,18 @@
|
||||
package com.baeldung.system;
|
||||
|
||||
import org.apache.commons.lang3.SystemUtils;
|
||||
|
||||
public class DetectOS {
|
||||
|
||||
public String getOperatingSystem() {
|
||||
String os = System.getProperty("os.name");
|
||||
System.out.println("Using System Property: " + os);
|
||||
return os;
|
||||
}
|
||||
|
||||
public String getOperatingSystemSystemUtils() {
|
||||
String os = SystemUtils.OS_NAME;
|
||||
System.out.println("Using SystemUtils: " + os);
|
||||
return os;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,46 @@
|
||||
package com.baeldung.urlconnection;
|
||||
|
||||
import java.io.BufferedReader;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStreamReader;
|
||||
import java.io.OutputStream;
|
||||
import java.net.HttpURLConnection;
|
||||
import java.net.URL;
|
||||
|
||||
public class PostJSONWithHttpURLConnection {
|
||||
|
||||
public static void main (String []args) throws IOException{
|
||||
//Change the URL with any other publicly accessible POST resource, which accepts JSON request body
|
||||
URL url = new URL ("https://reqres.in/api/users");
|
||||
|
||||
HttpURLConnection con = (HttpURLConnection)url.openConnection();
|
||||
con.setRequestMethod("POST");
|
||||
|
||||
con.setRequestProperty("Content-Type", "application/json; utf-8");
|
||||
con.setRequestProperty("Accept", "application/json");
|
||||
|
||||
con.setDoOutput(true);
|
||||
|
||||
//JSON String need to be constructed for the specific resource.
|
||||
//We may construct complex JSON using any third-party JSON libraries such as jackson or org.json
|
||||
String jsonInputString = "{\"name\": \"Upendra\", \"job\": \"Programmer\"}";
|
||||
|
||||
try(OutputStream os = con.getOutputStream()){
|
||||
byte[] input = jsonInputString.getBytes("utf-8");
|
||||
os.write(input, 0, input.length);
|
||||
}
|
||||
|
||||
int code = con.getResponseCode();
|
||||
System.out.println(code);
|
||||
|
||||
try(BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream(), "utf-8"))){
|
||||
StringBuilder response = new StringBuilder();
|
||||
String responseLine = null;
|
||||
while ((responseLine = br.readLine()) != null) {
|
||||
response.append(responseLine.trim());
|
||||
}
|
||||
System.out.println(response.toString());
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,19 @@
|
||||
package com.baeldung.util;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.util.Properties;
|
||||
|
||||
public class PropertiesLoader {
|
||||
|
||||
public static Properties loadProperties(String resourceFileName) throws IOException {
|
||||
Properties configuration = new Properties();
|
||||
InputStream inputStream = PropertiesLoader.class
|
||||
.getClassLoader()
|
||||
.getResourceAsStream(resourceFileName);
|
||||
configuration.load(inputStream);
|
||||
inputStream.close();
|
||||
return configuration;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,116 @@
|
||||
package com.baeldung.uuid;
|
||||
|
||||
import java.io.UnsupportedEncodingException;
|
||||
import java.security.MessageDigest;
|
||||
import java.security.NoSuchAlgorithmException;
|
||||
import java.util.UUID;
|
||||
|
||||
public class UUIDGenerator {
|
||||
|
||||
/**
|
||||
* These are predefined UUID for name spaces
|
||||
*/
|
||||
private static final String NAMESPACE_DNS = "6ba7b810-9dad-11d1-80b4-00c04fd430c8";
|
||||
private static final String NAMESPACE_URL = "6ba7b811-9dad-11d1-80b4-00c04fd430c8";
|
||||
private static final String NAMESPACE_OID = "6ba7b812-9dad-11d1-80b4-00c04fd430c8";
|
||||
private static final String NAMESPACE_X500 = "6ba7b814-9dad-11d1-80b4-00c04fd430c8";
|
||||
|
||||
private static final char[] hexArray = "0123456789ABCDEF".toCharArray();
|
||||
|
||||
public static void main(String[] args) {
|
||||
try {
|
||||
System.out.println("Type 3 : " + generateType3UUID(NAMESPACE_DNS, "google.com"));
|
||||
System.out.println("Type 4 : " + generateType4UUID());
|
||||
System.out.println("Type 5 : " + generateType5UUID(NAMESPACE_URL, "google.com"));
|
||||
System.out.println("Unique key : " + generateUniqueKeysWithUUIDAndMessageDigest());
|
||||
} catch (NoSuchAlgorithmException | UnsupportedEncodingException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Type 4 UUID Generation
|
||||
*/
|
||||
public static UUID generateType4UUID() {
|
||||
UUID uuid = UUID.randomUUID();
|
||||
return uuid;
|
||||
}
|
||||
|
||||
/**
|
||||
* Type 3 UUID Generation
|
||||
*
|
||||
* @throws UnsupportedEncodingException
|
||||
*/
|
||||
public static UUID generateType3UUID(String namespace, String name) throws UnsupportedEncodingException {
|
||||
String source = namespace + name;
|
||||
byte[] bytes = source.getBytes("UTF-8");
|
||||
UUID uuid = UUID.nameUUIDFromBytes(bytes);
|
||||
return uuid;
|
||||
}
|
||||
|
||||
/**
|
||||
* Type 5 UUID Generation
|
||||
*
|
||||
* @throws UnsupportedEncodingException
|
||||
*/
|
||||
public static UUID generateType5UUID(String namespace, String name) throws UnsupportedEncodingException {
|
||||
String source = namespace + name;
|
||||
byte[] bytes = source.getBytes("UTF-8");
|
||||
UUID uuid = type5UUIDFromBytes(bytes);
|
||||
return uuid;
|
||||
}
|
||||
|
||||
public static UUID type5UUIDFromBytes(byte[] name) {
|
||||
MessageDigest md;
|
||||
try {
|
||||
md = MessageDigest.getInstance("SHA-1");
|
||||
} catch (NoSuchAlgorithmException nsae) {
|
||||
throw new InternalError("MD5 not supported", nsae);
|
||||
}
|
||||
byte[] bytes = md.digest(name);
|
||||
bytes[6] &= 0x0f; /* clear version */
|
||||
bytes[6] |= 0x50; /* set to version 5 */
|
||||
bytes[8] &= 0x3f; /* clear variant */
|
||||
bytes[8] |= 0x80; /* set to IETF variant */
|
||||
return constructType5UUID(bytes);
|
||||
}
|
||||
|
||||
private static UUID constructType5UUID(byte[] data) {
|
||||
long msb = 0;
|
||||
long lsb = 0;
|
||||
assert data.length == 16 : "data must be 16 bytes in length";
|
||||
|
||||
for (int i = 0; i < 8; i++)
|
||||
msb = (msb << 8) | (data[i] & 0xff);
|
||||
|
||||
for (int i = 8; i < 16; i++)
|
||||
lsb = (lsb << 8) | (data[i] & 0xff);
|
||||
return new UUID(msb, lsb);
|
||||
}
|
||||
|
||||
/**
|
||||
* Unique Keys Generation Using Message Digest and Type 4 UUID
|
||||
*
|
||||
* @throws NoSuchAlgorithmException
|
||||
* @throws UnsupportedEncodingException
|
||||
*/
|
||||
public static String generateUniqueKeysWithUUIDAndMessageDigest() throws NoSuchAlgorithmException, UnsupportedEncodingException {
|
||||
MessageDigest salt = MessageDigest.getInstance("SHA-256");
|
||||
salt.update(UUID.randomUUID()
|
||||
.toString()
|
||||
.getBytes("UTF-8"));
|
||||
String digest = bytesToHex(salt.digest());
|
||||
return digest;
|
||||
}
|
||||
|
||||
public static String bytesToHex(byte[] bytes) {
|
||||
char[] hexChars = new char[bytes.length * 2];
|
||||
for (int j = 0; j < bytes.length; j++) {
|
||||
int v = bytes[j] & 0xFF;
|
||||
hexChars[j * 2] = hexArray[v >>> 4];
|
||||
hexChars[j * 2 + 1] = hexArray[v & 0x0F];
|
||||
}
|
||||
return new String(hexChars);
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1,2 @@
|
||||
-d javac-target -verbose
|
||||
com/baeldung/javac/Data.java
|
||||
@@ -0,0 +1,2 @@
|
||||
-d javac-target
|
||||
-verbose
|
||||
@@ -0,0 +1 @@
|
||||
com/baeldung/javac/Data.java
|
||||
@@ -0,0 +1,3 @@
|
||||
-d javac-target
|
||||
-Xlint:rawtypes,unchecked,static,cast,serial,fallthrough
|
||||
com/baeldung/javac/Data.java
|
||||
@@ -0,0 +1,9 @@
|
||||
# Set root logger level to DEBUG and its only appender to A1.
|
||||
log4j.rootLogger=DEBUG, A1
|
||||
|
||||
# A1 is set to be a ConsoleAppender.
|
||||
log4j.appender.A1=org.apache.log4j.ConsoleAppender
|
||||
|
||||
# A1 uses PatternLayout.
|
||||
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
|
||||
log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
|
||||
@@ -0,0 +1,10 @@
|
||||
package org.baeldung.executable;
|
||||
|
||||
import javax.swing.*;
|
||||
|
||||
public class ExecutableMavenJar {
|
||||
|
||||
public static void main(String[] args) {
|
||||
JOptionPane.showMessageDialog(null, "It worked!", "Executable Jar with Maven", 1);
|
||||
}
|
||||
}
|
||||
453
core-java-modules/core-java/src/main/resources/ESAPI.properties
Normal file
453
core-java-modules/core-java/src/main/resources/ESAPI.properties
Normal file
@@ -0,0 +1,453 @@
|
||||
#
|
||||
# OWASP Enterprise Security API (ESAPI) Properties file -- PRODUCTION Version
|
||||
#
|
||||
# This file is part of the Open Web Application Security Project (OWASP)
|
||||
# Enterprise Security API (ESAPI) project. For details, please see
|
||||
# http://www.owasp.org/index.php/ESAPI.
|
||||
#
|
||||
# Copyright (c) 2008,2009 - The OWASP Foundation
|
||||
#
|
||||
# DISCUSS: This may cause a major backwards compatibility issue, etc. but
|
||||
# from a name space perspective, we probably should have prefaced
|
||||
# all the property names with ESAPI or at least OWASP. Otherwise
|
||||
# there could be problems is someone loads this properties file into
|
||||
# the System properties. We could also put this file into the
|
||||
# esapi.jar file (perhaps as a ResourceBundle) and then allow an external
|
||||
# ESAPI properties be defined that would overwrite these defaults.
|
||||
# That keeps the application's properties relatively simple as usually
|
||||
# they will only want to override a few properties. If looks like we
|
||||
# already support multiple override levels of this in the
|
||||
# DefaultSecurityConfiguration class, but I'm suggesting placing the
|
||||
# defaults in the esapi.jar itself. That way, if the jar is signed,
|
||||
# we could detect if those properties had been tampered with. (The
|
||||
# code to check the jar signatures is pretty simple... maybe 70-90 LOC,
|
||||
# but off course there is an execution penalty (similar to the way
|
||||
# that the separate sunjce.jar used to be when a class from it was
|
||||
# first loaded). Thoughts?
|
||||
###############################################################################
|
||||
#
|
||||
# WARNING: Operating system protection should be used to lock down the .esapi
|
||||
# resources directory and all the files inside and all the directories all the
|
||||
# way up to the root directory of the file system. Note that if you are using
|
||||
# file-based implementations, that some files may need to be read-write as they
|
||||
# get updated dynamically.
|
||||
#
|
||||
# Before using, be sure to update the MasterKey and MasterSalt as described below.
|
||||
# N.B.: If you had stored data that you have previously encrypted with ESAPI 1.4,
|
||||
# you *must* FIRST decrypt it using ESAPI 1.4 and then (if so desired)
|
||||
# re-encrypt it with ESAPI 2.0. If you fail to do this, you will NOT be
|
||||
# able to decrypt your data with ESAPI 2.0.
|
||||
#
|
||||
# YOU HAVE BEEN WARNED!!! More details are in the ESAPI 2.0 Release Notes.
|
||||
#
|
||||
#===========================================================================
|
||||
# ESAPI Configuration
|
||||
#
|
||||
# If true, then print all the ESAPI properties set here when they are loaded.
|
||||
# If false, they are not printed. Useful to reduce output when running JUnit tests.
|
||||
# If you need to troubleshoot a properties related problem, turning this on may help.
|
||||
# This is 'false' in the src/test/resources/.esapi version. It is 'true' by
|
||||
# default for reasons of backward compatibility with earlier ESAPI versions.
|
||||
ESAPI.printProperties=true
|
||||
|
||||
# ESAPI is designed to be easily extensible. You can use the reference implementation
|
||||
# or implement your own providers to take advantage of your enterprise's security
|
||||
# infrastructure. The functions in ESAPI are referenced using the ESAPI locator, like:
|
||||
#
|
||||
# String ciphertext =
|
||||
# ESAPI.encryptor().encrypt("Secret message"); // Deprecated in 2.0
|
||||
# CipherText cipherText =
|
||||
# ESAPI.encryptor().encrypt(new PlainText("Secret message")); // Preferred
|
||||
#
|
||||
# Below you can specify the classname for the provider that you wish to use in your
|
||||
# application. The only requirement is that it implement the appropriate ESAPI interface.
|
||||
# This allows you to switch security implementations in the future without rewriting the
|
||||
# entire application.
|
||||
#
|
||||
# ExperimentalAccessController requires ESAPI-AccessControlPolicy.xml in .esapi directory
|
||||
ESAPI.AccessControl=org.owasp.esapi.reference.DefaultAccessController
|
||||
# FileBasedAuthenticator requires users.txt file in .esapi directory
|
||||
ESAPI.Authenticator=org.owasp.esapi.reference.FileBasedAuthenticator
|
||||
ESAPI.Encoder=org.owasp.esapi.reference.DefaultEncoder
|
||||
ESAPI.Encryptor=org.owasp.esapi.reference.crypto.JavaEncryptor
|
||||
|
||||
ESAPI.Executor=org.owasp.esapi.reference.DefaultExecutor
|
||||
ESAPI.HTTPUtilities=org.owasp.esapi.reference.DefaultHTTPUtilities
|
||||
ESAPI.IntrusionDetector=org.owasp.esapi.reference.DefaultIntrusionDetector
|
||||
# Log4JFactory Requires log4j.xml or log4j.properties in classpath - http://www.laliluna.de/log4j-tutorial.html
|
||||
ESAPI.Logger=org.owasp.esapi.reference.Log4JLogFactory
|
||||
#ESAPI.Logger=org.owasp.esapi.reference.JavaLogFactory
|
||||
ESAPI.Randomizer=org.owasp.esapi.reference.DefaultRandomizer
|
||||
ESAPI.Validator=org.owasp.esapi.reference.DefaultValidator
|
||||
|
||||
#===========================================================================
|
||||
# ESAPI Authenticator
|
||||
#
|
||||
Authenticator.AllowedLoginAttempts=3
|
||||
Authenticator.MaxOldPasswordHashes=13
|
||||
Authenticator.UsernameParameterName=username
|
||||
Authenticator.PasswordParameterName=password
|
||||
# RememberTokenDuration (in days)
|
||||
Authenticator.RememberTokenDuration=14
|
||||
# Session Timeouts (in minutes)
|
||||
Authenticator.IdleTimeoutDuration=20
|
||||
Authenticator.AbsoluteTimeoutDuration=120
|
||||
|
||||
#===========================================================================
|
||||
# ESAPI Encoder
|
||||
#
|
||||
# ESAPI canonicalizes input before validation to prevent bypassing filters with encoded attacks.
|
||||
# Failure to canonicalize input is a very common mistake when implementing validation schemes.
|
||||
# Canonicalization is automatic when using the ESAPI Validator, but you can also use the
|
||||
# following code to canonicalize data.
|
||||
#
|
||||
# ESAPI.Encoder().canonicalize( "%22hello world"" );
|
||||
#
|
||||
# Multiple encoding is when a single encoding format is applied multiple times. Allowing
|
||||
# multiple encoding is strongly discouraged.
|
||||
Encoder.AllowMultipleEncoding=false
|
||||
|
||||
# Mixed encoding is when multiple different encoding formats are applied, or when
|
||||
# multiple formats are nested. Allowing multiple encoding is strongly discouraged.
|
||||
Encoder.AllowMixedEncoding=false
|
||||
|
||||
# The default list of codecs to apply when canonicalizing untrusted data. The list should include the codecs
|
||||
# for all downstream interpreters or decoders. For example, if the data is likely to end up in a URL, HTML, or
|
||||
# inside JavaScript, then the list of codecs below is appropriate. The order of the list is not terribly important.
|
||||
Encoder.DefaultCodecList=HTMLEntityCodec,PercentCodec,JavaScriptCodec
|
||||
|
||||
|
||||
#===========================================================================
|
||||
# ESAPI Encryption
|
||||
#
|
||||
# The ESAPI Encryptor provides basic cryptographic functions with a simplified API.
|
||||
# To get started, generate a new key using java -classpath esapi.jar org.owasp.esapi.reference.crypto.JavaEncryptor
|
||||
# There is not currently any support for key rotation, so be careful when changing your key and salt as it
|
||||
# will invalidate all signed, encrypted, and hashed data.
|
||||
#
|
||||
# WARNING: Not all combinations of algorithms and key lengths are supported.
|
||||
# If you choose to use a key length greater than 128, you MUST download the
|
||||
# unlimited strength policy files and install in the lib directory of your JRE/JDK.
|
||||
# See http://java.sun.com/javase/downloads/index.jsp for more information.
|
||||
#
|
||||
# Backward compatibility with ESAPI Java 1.4 is supported by the two deprecated API
|
||||
# methods, Encryptor.encrypt(String) and Encryptor.decrypt(String). However, whenever
|
||||
# possible, these methods should be avoided as they use ECB cipher mode, which in almost
|
||||
# all circumstances a poor choice because of it's weakness. CBC cipher mode is the default
|
||||
# for the new Encryptor encrypt / decrypt methods for ESAPI Java 2.0. In general, you
|
||||
# should only use this compatibility setting if you have persistent data encrypted with
|
||||
# version 1.4 and even then, you should ONLY set this compatibility mode UNTIL
|
||||
# you have decrypted all of your old encrypted data and then re-encrypted it with
|
||||
# ESAPI 2.0 using CBC mode. If you have some reason to mix the deprecated 1.4 mode
|
||||
# with the new 2.0 methods, make sure that you use the same cipher algorithm for both
|
||||
# (256-bit AES was the default for 1.4; 128-bit is the default for 2.0; see below for
|
||||
# more details.) Otherwise, you will have to use the new 2.0 encrypt / decrypt methods
|
||||
# where you can specify a SecretKey. (Note that if you are using the 256-bit AES,
|
||||
# that requires downloading the special jurisdiction policy files mentioned above.)
|
||||
#
|
||||
# ***** IMPORTANT: Do NOT forget to replace these with your own values! *****
|
||||
# To calculate these values, you can run:
|
||||
# java -classpath esapi.jar org.owasp.esapi.reference.crypto.JavaEncryptor
|
||||
#
|
||||
Encryptor.MasterKey=tzfztf56ftv
|
||||
Encryptor.MasterSalt=123456ztrewq
|
||||
|
||||
# Provides the default JCE provider that ESAPI will "prefer" for its symmetric
|
||||
# encryption and hashing. (That is it will look to this provider first, but it
|
||||
# will defer to other providers if the requested algorithm is not implemented
|
||||
# by this provider.) If left unset, ESAPI will just use your Java VM's current
|
||||
# preferred JCE provider, which is generally set in the file
|
||||
# "$JAVA_HOME/jre/lib/security/java.security".
|
||||
#
|
||||
# The main intent of this is to allow ESAPI symmetric encryption to be
|
||||
# used with a FIPS 140-2 compliant crypto-module. For details, see the section
|
||||
# "Using ESAPI Symmetric Encryption with FIPS 140-2 Cryptographic Modules" in
|
||||
# the ESAPI 2.0 Symmetric Encryption User Guide, at:
|
||||
# http://owasp-esapi-java.googlecode.com/svn/trunk/documentation/esapi4java-core-2.0-symmetric-crypto-user-guide.html
|
||||
# However, this property also allows you to easily use an alternate JCE provider
|
||||
# such as "Bouncy Castle" without having to make changes to "java.security".
|
||||
# See Javadoc for SecurityProviderLoader for further details. If you wish to use
|
||||
# a provider that is not known to SecurityProviderLoader, you may specify the
|
||||
# fully-qualified class name of the JCE provider class that implements
|
||||
# java.security.Provider. If the name contains a '.', this is interpreted as
|
||||
# a fully-qualified class name that implements java.security.Provider.
|
||||
#
|
||||
# NOTE: Setting this property has the side-effect of changing it in your application
|
||||
# as well, so if you are using JCE in your application directly rather than
|
||||
# through ESAPI (you wouldn't do that, would you? ;-), it will change the
|
||||
# preferred JCE provider there as well.
|
||||
#
|
||||
# Default: Keeps the JCE provider set to whatever JVM sets it to.
|
||||
Encryptor.PreferredJCEProvider=
|
||||
|
||||
# AES is the most widely used and strongest encryption algorithm. This
|
||||
# should agree with your Encryptor.CipherTransformation property.
|
||||
# By default, ESAPI Java 1.4 uses "PBEWithMD5AndDES" and which is
|
||||
# very weak. It is essentially a password-based encryption key, hashed
|
||||
# with MD5 around 1K times and then encrypted with the weak DES algorithm
|
||||
# (56-bits) using ECB mode and an unspecified padding (it is
|
||||
# JCE provider specific, but most likely "NoPadding"). However, 2.0 uses
|
||||
# "AES/CBC/PKCSPadding". If you want to change these, change them here.
|
||||
# Warning: This property does not control the default reference implementation for
|
||||
# ESAPI 2.0 using JavaEncryptor. Also, this property will be dropped
|
||||
# in the future.
|
||||
# @deprecated
|
||||
Encryptor.EncryptionAlgorithm=AES
|
||||
# For ESAPI Java 2.0 - New encrypt / decrypt methods use this.
|
||||
Encryptor.CipherTransformation=AES/CBC/PKCS5Padding
|
||||
|
||||
# Applies to ESAPI 2.0 and later only!
|
||||
# Comma-separated list of cipher modes that provide *BOTH*
|
||||
# confidentiality *AND* message authenticity. (NIST refers to such cipher
|
||||
# modes as "combined modes" so that's what we shall call them.) If any of these
|
||||
# cipher modes are used then no MAC is calculated and stored
|
||||
# in the CipherText upon encryption. Likewise, if one of these
|
||||
# cipher modes is used with decryption, no attempt will be made
|
||||
# to validate the MAC contained in the CipherText object regardless
|
||||
# of whether it contains one or not. Since the expectation is that
|
||||
# these cipher modes support support message authenticity already,
|
||||
# injecting a MAC in the CipherText object would be at best redundant.
|
||||
#
|
||||
# Note that as of JDK 1.5, the SunJCE provider does not support *any*
|
||||
# of these cipher modes. Of these listed, only GCM and CCM are currently
|
||||
# NIST approved. YMMV for other JCE providers. E.g., Bouncy Castle supports
|
||||
# GCM and CCM with "NoPadding" mode, but not with "PKCS5Padding" or other
|
||||
# padding modes.
|
||||
Encryptor.cipher_modes.combined_modes=GCM,CCM,IAPM,EAX,OCB,CWC
|
||||
|
||||
# Applies to ESAPI 2.0 and later only!
|
||||
# Additional cipher modes allowed for ESAPI 2.0 encryption. These
|
||||
# cipher modes are in _addition_ to those specified by the property
|
||||
# 'Encryptor.cipher_modes.combined_modes'.
|
||||
# Note: We will add support for streaming modes like CFB & OFB once
|
||||
# we add support for 'specified' to the property 'Encryptor.ChooseIVMethod'
|
||||
# (probably in ESAPI 2.1).
|
||||
# DISCUSS: Better name?
|
||||
Encryptor.cipher_modes.additional_allowed=CBC
|
||||
|
||||
# 128-bit is almost always sufficient and appears to be more resistant to
|
||||
# related key attacks than is 256-bit AES. Use '_' to use default key size
|
||||
# for cipher algorithms (where it makes sense because the algorithm supports
|
||||
# a variable key size). Key length must agree to what's provided as the
|
||||
# cipher transformation, otherwise this will be ignored after logging a
|
||||
# warning.
|
||||
#
|
||||
# NOTE: This is what applies BOTH ESAPI 1.4 and 2.0. See warning above about mixing!
|
||||
Encryptor.EncryptionKeyLength=128
|
||||
|
||||
# Because 2.0 uses CBC mode by default, it requires an initialization vector (IV).
|
||||
# (All cipher modes except ECB require an IV.) There are two choices: we can either
|
||||
# use a fixed IV known to both parties or allow ESAPI to choose a random IV. While
|
||||
# the IV does not need to be hidden from adversaries, it is important that the
|
||||
# adversary not be allowed to choose it. Also, random IVs are generally much more
|
||||
# secure than fixed IVs. (In fact, it is essential that feed-back cipher modes
|
||||
# such as CFB and OFB use a different IV for each encryption with a given key so
|
||||
# in such cases, random IVs are much preferred. By default, ESAPI 2.0 uses random
|
||||
# IVs. If you wish to use 'fixed' IVs, set 'Encryptor.ChooseIVMethod=fixed' and
|
||||
# uncomment the Encryptor.fixedIV.
|
||||
#
|
||||
# Valid values: random|fixed|specified 'specified' not yet implemented; planned for 2.1
|
||||
Encryptor.ChooseIVMethod=random
|
||||
# If you choose to use a fixed IV, then you must place a fixed IV here that
|
||||
# is known to all others who are sharing your secret key. The format should
|
||||
# be a hex string that is the same length as the cipher block size for the
|
||||
# cipher algorithm that you are using. The following is an *example* for AES
|
||||
# from an AES test vector for AES-128/CBC as described in:
|
||||
# NIST Special Publication 800-38A (2001 Edition)
|
||||
# "Recommendation for Block Cipher Modes of Operation".
|
||||
# (Note that the block size for AES is 16 bytes == 128 bits.)
|
||||
#
|
||||
Encryptor.fixedIV=0x000102030405060708090a0b0c0d0e0f
|
||||
|
||||
# Whether or not CipherText should use a message authentication code (MAC) with it.
|
||||
# This prevents an adversary from altering the IV as well as allowing a more
|
||||
# fool-proof way of determining the decryption failed because of an incorrect
|
||||
# key being supplied. This refers to the "separate" MAC calculated and stored
|
||||
# in CipherText, not part of any MAC that is calculated as a result of a
|
||||
# "combined mode" cipher mode.
|
||||
#
|
||||
# If you are using ESAPI with a FIPS 140-2 cryptographic module, you *must* also
|
||||
# set this property to false.
|
||||
Encryptor.CipherText.useMAC=true
|
||||
|
||||
# Whether or not the PlainText object may be overwritten and then marked
|
||||
# eligible for garbage collection. If not set, this is still treated as 'true'.
|
||||
Encryptor.PlainText.overwrite=true
|
||||
|
||||
# Do not use DES except in a legacy situations. 56-bit is way too small key size.
|
||||
#Encryptor.EncryptionKeyLength=56
|
||||
#Encryptor.EncryptionAlgorithm=DES
|
||||
|
||||
# TripleDES is considered strong enough for most purposes.
|
||||
# Note: There is also a 112-bit version of DESede. Using the 168-bit version
|
||||
# requires downloading the special jurisdiction policy from Sun.
|
||||
#Encryptor.EncryptionKeyLength=168
|
||||
#Encryptor.EncryptionAlgorithm=DESede
|
||||
|
||||
Encryptor.HashAlgorithm=SHA-512
|
||||
Encryptor.HashIterations=1024
|
||||
Encryptor.DigitalSignatureAlgorithm=SHA1withDSA
|
||||
Encryptor.DigitalSignatureKeyLength=1024
|
||||
Encryptor.RandomAlgorithm=SHA1PRNG
|
||||
Encryptor.CharacterEncoding=UTF-8
|
||||
|
||||
# This is the Pseudo Random Function (PRF) that ESAPI's Key Derivation Function
|
||||
# (KDF) normally uses. Note this is *only* the PRF used for ESAPI's KDF and
|
||||
# *not* what is used for ESAPI's MAC. (Currently, HmacSHA1 is always used for
|
||||
# the MAC, mostly to keep the overall size at a minimum.)
|
||||
#
|
||||
# Currently supported choices for JDK 1.5 and 1.6 are:
|
||||
# HmacSHA1 (160 bits), HmacSHA256 (256 bits), HmacSHA384 (384 bits), and
|
||||
# HmacSHA512 (512 bits).
|
||||
# Note that HmacMD5 is *not* supported for the PRF used by the KDF even though
|
||||
# the JDKs support it. See the ESAPI 2.0 Symmetric Encryption User Guide
|
||||
# further details.
|
||||
Encryptor.KDF.PRF=HmacSHA256
|
||||
#===========================================================================
|
||||
# ESAPI HttpUtilties
|
||||
#
|
||||
# The HttpUtilities provide basic protections to HTTP requests and responses. Primarily these methods
|
||||
# protect against malicious data from attackers, such as unprintable characters, escaped characters,
|
||||
# and other simple attacks. The HttpUtilities also provides utility methods for dealing with cookies,
|
||||
# headers, and CSRF tokens.
|
||||
#
|
||||
# Default file upload location (remember to escape backslashes with \\)
|
||||
HttpUtilities.UploadDir=C:\\ESAPI\\testUpload
|
||||
HttpUtilities.UploadTempDir=C:\\temp
|
||||
# Force flags on cookies, if you use HttpUtilities to set cookies
|
||||
HttpUtilities.ForceHttpOnlySession=false
|
||||
HttpUtilities.ForceSecureSession=false
|
||||
HttpUtilities.ForceHttpOnlyCookies=true
|
||||
HttpUtilities.ForceSecureCookies=true
|
||||
# Maximum size of HTTP headers
|
||||
HttpUtilities.MaxHeaderSize=4096
|
||||
# File upload configuration
|
||||
HttpUtilities.ApprovedUploadExtensions=.zip,.pdf,.doc,.docx,.ppt,.pptx,.tar,.gz,.tgz,.rar,.war,.jar,.ear,.xls,.rtf,.properties,.java,.class,.txt,.xml,.jsp,.jsf,.exe,.dll
|
||||
HttpUtilities.MaxUploadFileBytes=500000000
|
||||
# Using UTF-8 throughout your stack is highly recommended. That includes your database driver,
|
||||
# container, and any other technologies you may be using. Failure to do this may expose you
|
||||
# to Unicode transcoding injection attacks. Use of UTF-8 does not hinder internationalization.
|
||||
HttpUtilities.ResponseContentType=text/html; charset=UTF-8
|
||||
# This is the name of the cookie used to represent the HTTP session
|
||||
# Typically this will be the default "JSESSIONID"
|
||||
HttpUtilities.HttpSessionIdName=JSESSIONID
|
||||
|
||||
|
||||
|
||||
#===========================================================================
|
||||
# ESAPI Executor
|
||||
# CHECKME - Not sure what this is used for, but surely it should be made OS independent.
|
||||
Executor.WorkingDirectory=C:\\Windows\\Temp
|
||||
Executor.ApprovedExecutables=C:\\Windows\\System32\\cmd.exe,C:\\Windows\\System32\\runas.exe
|
||||
|
||||
|
||||
#===========================================================================
|
||||
# ESAPI Logging
|
||||
# Set the application name if these logs are combined with other applications
|
||||
Logger.ApplicationName=ExampleApplication
|
||||
# If you use an HTML log viewer that does not properly HTML escape log data, you can set LogEncodingRequired to true
|
||||
Logger.LogEncodingRequired=false
|
||||
# Determines whether ESAPI should log the application name. This might be clutter in some single-server/single-app environments.
|
||||
Logger.LogApplicationName=true
|
||||
# Determines whether ESAPI should log the server IP and port. This might be clutter in some single-server environments.
|
||||
Logger.LogServerIP=true
|
||||
# LogFileName, the name of the logging file. Provide a full directory path (e.g., C:\\ESAPI\\ESAPI_logging_file) if you
|
||||
# want to place it in a specific directory.
|
||||
Logger.LogFileName=ESAPI_logging_file
|
||||
# MaxLogFileSize, the max size (in bytes) of a single log file before it cuts over to a new one (default is 10,000,000)
|
||||
Logger.MaxLogFileSize=10000000
|
||||
|
||||
|
||||
#===========================================================================
|
||||
# ESAPI Intrusion Detection
|
||||
#
|
||||
# Each event has a base to which .count, .interval, and .action are added
|
||||
# The IntrusionException will fire if we receive "count" events within "interval" seconds
|
||||
# The IntrusionDetector is configurable to take the following actions: log, logout, and disable
|
||||
# (multiple actions separated by commas are allowed e.g. event.test.actions=log,disable
|
||||
#
|
||||
# Custom Events
|
||||
# Names must start with "event." as the base
|
||||
# Use IntrusionDetector.addEvent( "test" ) in your code to trigger "event.test" here
|
||||
# You can also disable intrusion detection completely by changing
|
||||
# the following parameter to true
|
||||
#
|
||||
IntrusionDetector.Disable=false
|
||||
#
|
||||
IntrusionDetector.event.test.count=2
|
||||
IntrusionDetector.event.test.interval=10
|
||||
IntrusionDetector.event.test.actions=disable,log
|
||||
|
||||
# Exception Events
|
||||
# All EnterpriseSecurityExceptions are registered automatically
|
||||
# Call IntrusionDetector.getInstance().addException(e) for Exceptions that do not extend EnterpriseSecurityException
|
||||
# Use the fully qualified classname of the exception as the base
|
||||
|
||||
# any intrusion is an attack
|
||||
IntrusionDetector.org.owasp.esapi.errors.IntrusionException.count=1
|
||||
IntrusionDetector.org.owasp.esapi.errors.IntrusionException.interval=1
|
||||
IntrusionDetector.org.owasp.esapi.errors.IntrusionException.actions=log,disable,logout
|
||||
|
||||
# for test purposes
|
||||
# CHECKME: Shouldn't there be something in the property name itself that designates
|
||||
# that these are for testing???
|
||||
IntrusionDetector.org.owasp.esapi.errors.IntegrityException.count=10
|
||||
IntrusionDetector.org.owasp.esapi.errors.IntegrityException.interval=5
|
||||
IntrusionDetector.org.owasp.esapi.errors.IntegrityException.actions=log,disable,logout
|
||||
|
||||
# rapid validation errors indicate scans or attacks in progress
|
||||
# org.owasp.esapi.errors.ValidationException.count=10
|
||||
# org.owasp.esapi.errors.ValidationException.interval=10
|
||||
# org.owasp.esapi.errors.ValidationException.actions=log,logout
|
||||
|
||||
# sessions jumping between hosts indicates session hijacking
|
||||
IntrusionDetector.org.owasp.esapi.errors.AuthenticationHostException.count=2
|
||||
IntrusionDetector.org.owasp.esapi.errors.AuthenticationHostException.interval=10
|
||||
IntrusionDetector.org.owasp.esapi.errors.AuthenticationHostException.actions=log,logout
|
||||
|
||||
|
||||
#===========================================================================
|
||||
# ESAPI Validation
|
||||
#
|
||||
# The ESAPI Validator works on regular expressions with defined names. You can define names
|
||||
# either here, or you may define application specific patterns in a separate file defined below.
|
||||
# This allows enterprises to specify both organizational standards as well as application specific
|
||||
# validation rules.
|
||||
#
|
||||
Validator.ConfigurationFile=validation.properties
|
||||
|
||||
# Validators used by ESAPI
|
||||
Validator.AccountName=^[a-zA-Z0-9]{3,20}$
|
||||
Validator.SystemCommand=^[a-zA-Z\\-\\/]{1,64}$
|
||||
Validator.RoleName=^[a-z]{1,20}$
|
||||
|
||||
#the word TEST below should be changed to your application
|
||||
#name - only relative URL's are supported
|
||||
Validator.Redirect=^\\/test.*$
|
||||
|
||||
# Global HTTP Validation Rules
|
||||
# Values with Base64 encoded data (e.g. encrypted state) will need at least [a-zA-Z0-9\/+=]
|
||||
Validator.HTTPScheme=^(http|https)$
|
||||
Validator.HTTPServerName=^[a-zA-Z0-9_.\\-]*$
|
||||
Validator.HTTPParameterName=^[a-zA-Z0-9_]{1,32}$
|
||||
Validator.HTTPParameterValue=^[a-zA-Z0-9.\\-\\/+=@_ ]*$
|
||||
Validator.HTTPCookieName=^[a-zA-Z0-9\\-_]{1,32}$
|
||||
Validator.HTTPCookieValue=^[a-zA-Z0-9\\-\\/+=_ ]*$
|
||||
Validator.HTTPHeaderName=^[a-zA-Z0-9\\-_]{1,32}$
|
||||
Validator.HTTPHeaderValue=^[a-zA-Z0-9()\\-=\\*\\.\\?;,+\\/:&_ ]*$
|
||||
Validator.HTTPContextPath=^\\/?[a-zA-Z0-9.\\-\\/_]*$
|
||||
Validator.HTTPServletPath=^[a-zA-Z0-9.\\-\\/_]*$
|
||||
Validator.HTTPPath=^[a-zA-Z0-9.\\-_]*$
|
||||
Validator.HTTPQueryString=^[a-zA-Z0-9()\\-=\\*\\.\\?;,+\\/:&_ %]*$
|
||||
Validator.HTTPURI=^[a-zA-Z0-9()\\-=\\*\\.\\?;,+\\/:&_ ]*$
|
||||
Validator.HTTPURL=^.*$
|
||||
Validator.HTTPJSESSIONID=^[A-Z0-9]{10,30}$
|
||||
|
||||
# Validation of file related input
|
||||
Validator.FileName=^[a-zA-Z0-9!@#$%^&{}\\[\\]()_+\\-=,.~'` ]{1,255}$
|
||||
Validator.DirectoryName=^[a-zA-Z0-9:/\\\\!@#$%^&{}\\[\\]()_+\\-=,.~'` ]{1,255}$
|
||||
|
||||
# Validation of dates. Controls whether or not 'lenient' dates are accepted.
|
||||
# See DataFormat.setLenient(boolean flag) for further details.
|
||||
Validator.AcceptLenientDates=false
|
||||
|
||||
@@ -0,0 +1,5 @@
|
||||
Agent-Class: com.baeldung.instrumentation.agent.MyInstrumentationAgent
|
||||
Can-Redefine-Classes: true
|
||||
Can-Retransform-Classes: true
|
||||
Premain-Class: com.baeldung.instrumentation.agent.MyInstrumentationAgent
|
||||
Main-Class: com.baeldung.instrumentation.application.Launcher
|
||||
@@ -0,0 +1,20 @@
|
||||
<?xml version="1.0" encoding="UTF-8" ?>
|
||||
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
|
||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
|
||||
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd" version="2.1">
|
||||
|
||||
<!-- JDO tutorial "unit" -->
|
||||
<persistence-unit name="Tutorial">
|
||||
<exclude-unlisted-classes/>
|
||||
<properties>
|
||||
<property name="javax.jdo.PersistenceManagerFactoryClass" value="org.datanucleus.api.jdo.JDOPersistenceManagerFactory"/>
|
||||
<property name="javax.jdo.option.ConnectionURL" value="jdbc:h2:mem:mypersistence"/>
|
||||
<property name="javax.jdo.option.ConnectionDriverName" value="org.h2.Driver"/>
|
||||
<property name="javax.jdo.option.ConnectionUserName" value="sa"/>
|
||||
<property name="javax.jdo.option.ConnectionPassword" value=""/>
|
||||
<property name="datanucleus.schema.autoCreateAll" value="true"/>
|
||||
</properties>
|
||||
</persistence-unit>
|
||||
</persistence>
|
||||
|
||||
@@ -0,0 +1,3 @@
|
||||
UK
|
||||
US
|
||||
Germany
|
||||
@@ -0,0 +1,6 @@
|
||||
dataSourceClassName=//TBD
|
||||
dataSource.user=//TBD
|
||||
dataSource.password=//TBD
|
||||
dataSource.databaseName=//TBD
|
||||
dataSource.portNumber=//TBD
|
||||
dataSource.serverName=//TBD
|
||||
@@ -0,0 +1,10 @@
|
||||
This is line 1
|
||||
This is line 2
|
||||
This is line 3
|
||||
This is line 4
|
||||
This is line 5
|
||||
This is line 6
|
||||
This is line 7
|
||||
This is line 8
|
||||
This is line 9
|
||||
This is line 10
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user