[BAEL-19088] - Move articles out of core-java-io part 3

This commit is contained in:
catalin-burcea
2019-11-15 11:49:14 +02:00
parent 0950c53112
commit 5ec3630590
95 changed files with 114 additions and 180090 deletions

View File

@@ -1,64 +0,0 @@
package com.baeldung.files;
import java.io.File;
import java.io.IOException;
import java.nio.file.DirectoryStream;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class ListFiles {
public static final int DEPTH = 1;
public Set<String> listFilesUsingJavaIO(String dir) {
return Stream.of(new File(dir).listFiles())
.filter(file -> !file.isDirectory())
.map(File::getName)
.collect(Collectors.toSet());
}
public Set<String> listFilesUsingFileWalk(String dir, int depth) throws IOException {
try (Stream<Path> stream = Files.walk(Paths.get(dir), depth)) {
return stream.filter(file -> !Files.isDirectory(file))
.map(Path::getFileName)
.map(Path::toString)
.collect(Collectors.toSet());
}
}
public Set<String> listFilesUsingFileWalkAndVisitor(String dir) throws IOException {
Set<String> fileList = new HashSet<>();
Files.walkFileTree(Paths.get(dir), new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
if (!Files.isDirectory(file)) {
fileList.add(file.getFileName()
.toString());
}
return FileVisitResult.CONTINUE;
}
});
return fileList;
}
public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException {
Set<String> fileList = new HashSet<>();
try (DirectoryStream<Path> stream = Files.newDirectoryStream(Paths.get(dir))) {
for (Path path : stream) {
if (!Files.isDirectory(path)) {
fileList.add(path.getFileName()
.toString());
}
}
}
return fileList;
}
}

View File

@@ -1,48 +0,0 @@
package com.baeldung.stream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.channels.FileChannel;
import java.nio.file.Files;
import org.apache.commons.io.FileUtils;
public class FileCopy {
public static void copyFileUsingStream(File source, File dest) throws IOException {
InputStream is = null;
OutputStream os = null;
is = new FileInputStream(source);
os = new FileOutputStream(dest);
byte[] buffer = new byte[1024];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
is.close();
os.close();
}
public static void copyFileUsingChannel(File source, File dest) throws IOException {
FileChannel sourceChannel = null;
FileChannel destChannel = null;
sourceChannel = new FileInputStream(source).getChannel();
destChannel = new FileOutputStream(dest).getChannel();
destChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
sourceChannel.close();
destChannel.close();
}
public static void copyFileUsingApacheCommonsIO(File source, File dest) throws IOException {
FileUtils.copyFile(source, dest);
}
public static void copyFileUsingJavaFiles(File source, File dest) throws IOException {
Files.copy(source.toPath(), dest.toPath());
}
}

View File

@@ -1,16 +0,0 @@
package com.baeldung.util;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import org.apache.commons.io.IOUtils;
public class StreamUtils {
public static String getStringFromInputStream(InputStream input) throws IOException {
StringWriter writer = new StringWriter();
IOUtils.copy(input, writer, "UTF-8");
return writer.toString();
}
}

View File

@@ -1,453 +0,0 @@
#
# 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&#x22;" );
#
# 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

View File

@@ -1,20 +0,0 @@
<?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>

View File

@@ -1 +0,0 @@
com.baeldung.javac.SampleJavacPlugin

View File

@@ -1,3 +0,0 @@
1|IND|India
2|MY|Malaysia
3|AU|Australia
1 1 IND India
2 2 MY Malaysia
3 3 AU Australia

View File

@@ -1,6 +0,0 @@
dataSourceClassName=//TBD
dataSource.user=//TBD
dataSource.password=//TBD
dataSource.databaseName=//TBD
dataSource.portNumber=//TBD
dataSource.serverName=//TBD

View File

@@ -1,15 +0,0 @@
var first = {
name: "Whiskey",
age: 5
};
var second = {
volume: 100
};
Object.bindProperties(first, second);
print(first.volume);
second.volume = 1000;
print(first.volume);

View File

@@ -1 +0,0 @@
print(__FILE__, __LINE__, __DIR__);

View File

@@ -1,19 +0,0 @@
var math = {
increment: function (num) {
return ++num;
},
failFunc: function () {
try {
throw "BOOM";
} catch (e if typeof e === 'string') {
print("String thrown: " + e);
}
catch (e) {
print("this shouldn't happen!");
}
}
};
math;

View File

@@ -1,11 +0,0 @@
var demo = {
__noSuchProperty__: function (propName) {
print("Accessed non-existing property: " + propName);
},
__noSuchMethod__: function (methodName) {
print("Invoked non-existing method: " + methodName);
}
};
demo;

View File

@@ -1 +0,0 @@
function increment(num) ++num;

View File

@@ -1,2 +0,0 @@
print(" hello world".trimLeft());
print("hello world ".trimRight());

View File

@@ -1,9 +0,0 @@
function arrays(arr) {
var javaIntArray = Java.to(arr, "int[]");
print(javaIntArray[0]);
print(javaIntArray[1]);
print(javaIntArray[2]);
}
arrays([100, "1654", true]);

View File

@@ -1,69 +0,0 @@
package com.baeldung.copyfiles;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import org.apache.commons.io.FileUtils;
import org.junit.Before;
import org.junit.Test;
import static org.assertj.core.api.Assertions.*;
public class FileCopierIntegrationTest {
File original = new File("src/test/resources/original.txt");
@Before
public void init() throws IOException {
if (!original.exists())
Files.createFile(original.toPath());
}
@Test
public void givenIoAPI_whenCopied_thenCopyExistsWithSameContents() throws IOException {
File copied = new File("src/test/resources/copiedWithIo.txt");
try (InputStream in = new BufferedInputStream(new FileInputStream(original)); OutputStream out = new BufferedOutputStream(new FileOutputStream(copied))) {
byte[] buffer = new byte[1024];
int lengthRead;
while ((lengthRead = in.read(buffer)) > 0) {
out.write(buffer, 0, lengthRead);
out.flush();
}
}
assertThat(copied).exists();
assertThat(Files.readAllLines(original.toPath()).equals(Files.readAllLines(copied.toPath())));
}
@Test
public void givenCommonsIoAPI_whenCopied_thenCopyExistsWithSameContents() throws IOException {
File copied = new File("src/test/resources/copiedWithApacheCommons.txt");
FileUtils.copyFile(original, copied);
assertThat(copied).exists();
assertThat(Files.readAllLines(original.toPath()).equals(Files.readAllLines(copied.toPath())));
}
@Test
public void givenNIO2_whenCopied_thenCopyExistsWithSameContents() throws IOException {
Path copied = Paths.get("src/test/resources/copiedWithNio.txt");
Path originalPath = original.toPath();
Files.copy(originalPath, copied, StandardCopyOption.REPLACE_EXISTING);
assertThat(copied).exists();
assertThat(Files.readAllLines(originalPath).equals(Files.readAllLines(copied)));
}
@Test
public void givenGuava_whenCopied_thenCopyExistsWithSameContents() throws IOException {
File copied = new File("src/test/resources/copiedWithApacheCommons.txt");
com.google.common.io.Files.copy(original, copied);
assertThat(copied).exists();
assertThat(Files.readAllLines(original.toPath()).equals(Files.readAllLines(copied.toPath())));
}
}

View File

@@ -1,100 +0,0 @@
package com.baeldung.directories;
import org.junit.Before;
import org.junit.Test;
import java.io.File;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class NewDirectoryUnitTest {
private static final File TEMP_DIRECTORY = new File(System.getProperty("java.io.tmpdir"));
@Before
public void beforeEach() {
File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
File nestedInNewDirectory = new File(newDirectory, "nested_directory");
File existingDirectory = new File(TEMP_DIRECTORY, "existing_directory");
File existingNestedDirectory = new File(existingDirectory, "existing_nested_directory");
File nestedInExistingDirectory = new File(existingDirectory, "nested_directory");
nestedInNewDirectory.delete();
newDirectory.delete();
nestedInExistingDirectory.delete();
existingDirectory.mkdir();
existingNestedDirectory.mkdir();
}
@Test
public void givenUnexistingDirectory_whenMkdir_thenTrue() {
File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
assertFalse(newDirectory.exists());
boolean directoryCreated = newDirectory.mkdir();
assertTrue(directoryCreated);
}
@Test
public void givenExistingDirectory_whenMkdir_thenFalse() {
File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
newDirectory.mkdir();
assertTrue(newDirectory.exists());
boolean directoryCreated = newDirectory.mkdir();
assertFalse(directoryCreated);
}
@Test
public void givenUnexistingNestedDirectories_whenMkdir_thenFalse() {
File newDirectory = new File(TEMP_DIRECTORY, "new_directory");
File nestedDirectory = new File(newDirectory, "nested_directory");
assertFalse(newDirectory.exists());
assertFalse(nestedDirectory.exists());
boolean directoriesCreated = nestedDirectory.mkdir();
assertFalse(directoriesCreated);
}
@Test
public void givenUnexistingNestedDirectories_whenMkdirs_thenTrue() {
File newDirectory = new File(System.getProperty("java.io.tmpdir") + File.separator + "new_directory");
File nestedDirectory = new File(newDirectory, "nested_directory");
assertFalse(newDirectory.exists());
assertFalse(nestedDirectory.exists());
boolean directoriesCreated = nestedDirectory.mkdirs();
assertTrue(directoriesCreated);
}
@Test
public void givenExistingParentDirectories_whenMkdirs_thenTrue() {
File newDirectory = new File(TEMP_DIRECTORY, "existing_directory");
newDirectory.mkdir();
File nestedDirectory = new File(newDirectory, "nested_directory");
assertTrue(newDirectory.exists());
assertFalse(nestedDirectory.exists());
boolean directoriesCreated = nestedDirectory.mkdirs();
assertTrue(directoriesCreated);
}
@Test
public void givenExistingNestedDirectories_whenMkdirs_thenFalse() {
File existingDirectory = new File(TEMP_DIRECTORY, "existing_directory");
File existingNestedDirectory = new File(existingDirectory, "existing_nested_directory");
assertTrue(existingDirectory.exists());
assertTrue(existingNestedDirectory.exists());
boolean directoriesCreated = existingNestedDirectory.mkdirs();
assertFalse(directoriesCreated);
}
}

View File

@@ -1,96 +0,0 @@
package com.baeldung.file;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import org.apache.commons.io.FileUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.baeldung.util.StreamUtils;
public class FilesClearDataUnitTest {
public static final String FILE_PATH = "src/test/resources/fileexample.txt";
@Before
@After
public void setup() throws IOException {
PrintWriter writer = new PrintWriter(FILE_PATH);
writer.print("This example shows how we can delete the file contents without deleting the file");
writer.close();
}
@Test
public void givenExistingFile_whenDeleteContentUsingPrintWritter_thenEmptyFile() throws IOException {
PrintWriter writer = new PrintWriter(FILE_PATH);
writer.print("");
writer.close();
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
@Test
public void givenExistingFile_whenDeleteContentUsingPrintWritterWithougObject_thenEmptyFile() throws IOException {
new PrintWriter(FILE_PATH).close();
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
@Test
public void givenExistingFile_whenDeleteContentUsingFileWriter_thenEmptyFile() throws IOException {
new FileWriter(FILE_PATH, false).close();
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
@Test
public void givenExistingFile_whenDeleteContentUsingFileOutputStream_thenEmptyFile() throws IOException {
new FileOutputStream(FILE_PATH).close();
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
@Test
public void givenExistingFile_whenDeleteContentUsingFileUtils_thenEmptyFile() throws IOException {
FileUtils.write(new File(FILE_PATH), "", Charset.defaultCharset());
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
@Test
public void givenExistingFile_whenDeleteContentUsingNIOFiles_thenEmptyFile() throws IOException {
BufferedWriter writer = Files.newBufferedWriter(Paths.get(FILE_PATH));
writer.write("");
writer.flush();
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
@Test
public void givenExistingFile_whenDeleteContentUsingNIOFileChannel_thenEmptyFile() throws IOException {
FileChannel.open(Paths.get(FILE_PATH), StandardOpenOption.WRITE).truncate(0).close();
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
@Test
public void givenExistingFile_whenDeleteContentUsingGuava_thenEmptyFile() throws IOException {
File file = new File(FILE_PATH);
byte[] empty = new byte[0];
com.google.common.io.Files.write(empty, file);
assertEquals(0, StreamUtils.getStringFromInputStream(new FileInputStream(FILE_PATH)).length());
}
}

View File

@@ -1,82 +0,0 @@
package com.baeldung.file;
import static org.assertj.core.api.Assertions.assertThat;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import com.google.common.base.Charsets;
import com.google.common.io.CharSink;
import com.google.common.io.FileWriteMode;
import org.apache.commons.io.FileUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.baeldung.util.StreamUtils;
public class FilesManualTest {
public static final String fileName = "src/main/resources/countries.properties";
@Before
@After
public void setup() throws Exception {
PrintWriter writer = new PrintWriter(fileName);
writer.print("UK\r\n" + "US\r\n" + "Germany\r\n");
writer.close();
}
@Test
public void whenAppendToFileUsingGuava_thenCorrect() throws IOException {
File file = new File(fileName);
CharSink chs = com.google.common.io.Files.asCharSink(file, Charsets.UTF_8, FileWriteMode.APPEND);
chs.write("Spain\r\n");
assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
}
@Test
public void whenAppendToFileUsingFiles_thenCorrect() throws IOException {
Files.write(Paths.get(fileName), "Spain\r\n".getBytes(), StandardOpenOption.APPEND);
assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
}
@Test
public void whenAppendToFileUsingFileUtils_thenCorrect() throws IOException {
File file = new File(fileName);
FileUtils.writeStringToFile(file, "Spain\r\n", StandardCharsets.UTF_8, true);
assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
}
@Test
public void whenAppendToFileUsingFileOutputStream_thenCorrect() throws Exception {
FileOutputStream fos = new FileOutputStream(fileName, true);
fos.write("Spain\r\n".getBytes());
fos.close();
assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
}
@Test
public void whenAppendToFileUsingFileWriter_thenCorrect() throws IOException {
FileWriter fw = new FileWriter(fileName, true);
BufferedWriter bw = new BufferedWriter(fw);
bw.write("Spain");
bw.newLine();
bw.close();
assertThat(StreamUtils.getStringFromInputStream(new FileInputStream(fileName))).isEqualTo("UK\r\n" + "US\r\n" + "Germany\r\n" + "Spain\r\n");
}
}

View File

@@ -1,46 +0,0 @@
package com.baeldung.file;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import org.junit.Test;
import com.baeldung.files.ListFiles;
public class ListFilesUnitTest {
private ListFiles listFiles = new ListFiles();
private String DIRECTORY = "src/test/resources/listFilesUnitTestFolder";
private static final int DEPTH = 1;
private Set<String> EXPECTED_FILE_LIST = new HashSet<String>() {
{
add("test.xml");
add("employee.json");
add("students.json");
add("country.txt");
}
};
@Test
public void givenDir_whenUsingJAVAIO_thenListAllFiles() throws IOException {
assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingJavaIO(DIRECTORY));
}
@Test
public void givenDir_whenWalkingTree_thenListAllFiles() throws IOException {
assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingFileWalk(DIRECTORY,DEPTH));
}
@Test
public void givenDir_whenWalkingTreeWithVisitor_thenListAllFiles() throws IOException {
assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingFileWalkAndVisitor(DIRECTORY));
}
@Test
public void givenDir_whenUsingDirectoryStream_thenListAllFiles() throws IOException {
assertEquals(EXPECTED_FILE_LIST, listFiles.listFilesUsingDirectoryStream(DIRECTORY));
}
}

View File

@@ -1,4 +1,4 @@
package com.baeldung.filesystem.jndi.test;
package com.baeldung.filesystem.jndi;
import com.baeldung.filesystem.jndi.LookupFSJNDI;
import org.junit.Test;

View File

@@ -1,4 +1,4 @@
package com.baeldung.java.mimetype;
package com.baeldung.mimetype;
import static org.junit.Assert.assertEquals;

View File

@@ -1,4 +1,4 @@
package org.baeldung.java.io;
package com.baeldung.readfile;
import org.junit.Test;
import org.junit.Ignore;

View File

@@ -1,4 +1,4 @@
package com.baeldung.java8;
package com.baeldung.size;
import static org.junit.Assert.assertEquals;
@@ -18,7 +18,7 @@ public class JavaFileSizeUnitTest {
@Before
public void init() {
final String separator = File.separator;
filePath = String.join(separator, new String[] { "src", "test", "resources", "testFolder", "sample_file_1.in" });
filePath = String.join(separator, new String[] { "src", "test", "resources", "size", "sample_file_1.in" });
}
@Test

View File

@@ -1,4 +1,4 @@
package com.baeldung.java8;
package com.baeldung.size;
import static org.junit.Assert.assertEquals;
@@ -25,7 +25,7 @@ public class JavaFolderSizeUnitTest {
@Before
public void init() {
final String separator = File.separator;
path = String.format("src%stest%sresources%stestFolder", separator, separator, separator);
path = String.format("src%stest%sresources%ssize", separator, separator, separator);
}
@Test

View File

@@ -1,52 +0,0 @@
package com.baeldung.stream;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import org.junit.Test;
public class FileCopyUnitTest {
@Test
public void whenUsingStream_thenCopyFile() throws IOException {
final File src = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "src" + File.separator + "test_stream.txt");
final File dest = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "dest" + File.separator + "test_stream.txt");
FileCopy.copyFileUsingStream(src, dest);
assertTrue(dest.exists());
dest.delete();
}
@Test
public void whenUsingFiles_thenCopyFile() throws IOException {
final File src = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "src" + File.separator + "test_files.txt");
final File dest = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "dest" + File.separator + "test_files.txt");
FileCopy.copyFileUsingJavaFiles(src, dest);
assertTrue(dest.exists());
dest.delete();
}
@Test
public void whenUsingChannel_thenCopyFile() throws IOException {
final File src = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "src" + File.separator + "test_channel.txt");
final File dest = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "dest" + File.separator + "test_channel.txt");
FileCopy.copyFileUsingChannel(src, dest);
assertTrue(dest.exists());
dest.delete();
}
@Test
public void whenUsingApache_thenCopyFile() throws IOException {
final File src = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "src" + File.separator + "test_apache.txt");
final File dest = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "copyTest" + File.separator + "dest" + File.separator + "test_apache.txt");
FileCopy.copyFileUsingApacheCommonsIO(src, dest);
assertTrue(dest.exists());
dest.delete();
}
}

View File

@@ -1,58 +0,0 @@
package org.baeldung.core.exceptions;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
public class FileNotFoundExceptionUnitTest {
private static final Logger LOG = LoggerFactory.getLogger(FileNotFoundExceptionUnitTest.class);
private String fileName = Double.toString(Math.random());
@Test(expected = BusinessException.class)
public void raiseBusinessSpecificException() throws IOException {
try {
readFailingFile();
} catch (FileNotFoundException ex) {
throw new BusinessException("BusinessException: necessary file was not present.");
}
}
@Test
public void createFile() throws IOException {
try {
readFailingFile();
} catch (FileNotFoundException ex) {
try {
new File(fileName).createNewFile();
readFailingFile();
} catch (IOException ioe) {
throw new RuntimeException("BusinessException: even creation is not possible.");
}
}
}
@Test
public void logError() throws IOException {
try {
readFailingFile();
} catch (FileNotFoundException ex) {
LOG.error("Optional file " + fileName + " was not found.");
}
}
private void readFailingFile() throws IOException {
BufferedReader rd = new BufferedReader(new FileReader(new File(fileName)));
rd.readLine();
// no need to close file
}
private class BusinessException extends RuntimeException {
BusinessException(String string) {
super(string);
}
}
}

View File

@@ -1,258 +0,0 @@
package org.baeldung.java.io;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.io.StringReader;
import java.io.Writer;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.io.input.CharSequenceReader;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Charsets;
import com.google.common.io.CharSink;
import com.google.common.io.CharSource;
import com.google.common.io.CharStreams;
import com.google.common.io.FileWriteMode;
@SuppressWarnings("unused")
public class JavaReaderToXUnitTest {
protected final Logger logger = LoggerFactory.getLogger(getClass());
private static final int DEFAULT_SIZE = 1500000;
// tests - sandbox
// tests - Reader to String
@Test
public void givenUsingPlainJava_whenConvertingReaderIntoStringV1_thenCorrect() throws IOException {
final Reader reader = new StringReader("With Java 1");
int intValueOfChar;
String targetString = "";
while ((intValueOfChar = reader.read()) != -1) {
targetString += (char) intValueOfChar;
}
reader.close();
}
@Test
public void givenUsingPlainJava_whenConvertingReaderIntoStringV2_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("With Java 1");
final char[] arr = new char[8 * 1024];
final StringBuilder buffer = new StringBuilder();
int numCharsRead;
while ((numCharsRead = initialReader.read(arr, 0, arr.length)) != -1) {
buffer.append(arr, 0, numCharsRead);
}
initialReader.close();
final String targetString = buffer.toString();
}
@Test
public void givenUsingGuava_whenConvertingReaderIntoString_thenCorrect() throws IOException {
final Reader initialReader = CharSource.wrap("With Google Guava").openStream();
final String targetString = CharStreams.toString(initialReader);
initialReader.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingReaderIntoString_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("With Apache Commons");
final String targetString = IOUtils.toString(initialReader);
initialReader.close();
}
// tests - Reader WRITE TO File
@Test
public void givenUsingPlainJava_whenWritingReaderContentsToFile_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("Some text");
int intValueOfChar;
final StringBuilder buffer = new StringBuilder();
while ((intValueOfChar = initialReader.read()) != -1) {
buffer.append((char) intValueOfChar);
}
initialReader.close();
final File targetFile = new File("src/test/resources/targetFile.txt");
targetFile.createNewFile();
final Writer targetFileWriter = new FileWriter(targetFile);
targetFileWriter.write(buffer.toString());
targetFileWriter.close();
}
@Test
public void givenUsingGuava_whenWritingReaderContentsToFile_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("Some text");
final File targetFile = new File("src/test/resources/targetFile.txt");
com.google.common.io.Files.touch(targetFile);
final CharSink charSink = com.google.common.io.Files.asCharSink(targetFile, Charset.defaultCharset(), FileWriteMode.APPEND);
charSink.writeFrom(initialReader);
initialReader.close();
}
@Test
public void givenUsingCommonsIO_whenWritingReaderContentsToFile_thenCorrect() throws IOException {
final Reader initialReader = new CharSequenceReader("CharSequenceReader extends Reader");
final File targetFile = new File("src/test/resources/targetFile.txt");
FileUtils.touch(targetFile);
final byte[] buffer = IOUtils.toByteArray(initialReader);
FileUtils.writeByteArrayToFile(targetFile, buffer);
initialReader.close();
}
// tests - Reader to byte[]
@Test
public void givenUsingPlainJava_whenConvertingReaderIntoByteArray_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("With Java");
final char[] charArray = new char[8 * 1024];
final StringBuilder builder = new StringBuilder();
int numCharsRead;
while ((numCharsRead = initialReader.read(charArray, 0, charArray.length)) != -1) {
builder.append(charArray, 0, numCharsRead);
}
final byte[] targetArray = builder.toString().getBytes();
initialReader.close();
}
@Test
public void givenUsingGuava_whenConvertingReaderIntoByteArray_thenCorrect() throws IOException {
final Reader initialReader = CharSource.wrap("With Google Guava").openStream();
final byte[] targetArray = CharStreams.toString(initialReader).getBytes();
initialReader.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingReaderIntoByteArray_thenCorrect() throws IOException {
final StringReader initialReader = new StringReader("With Commons IO");
final byte[] targetArray = IOUtils.toByteArray(initialReader);
initialReader.close();
}
// tests - Reader to InputStream
@Test
public void givenUsingPlainJava_whenConvertingReaderIntoInputStream_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("With Java");
final char[] charBuffer = new char[8 * 1024];
final StringBuilder builder = new StringBuilder();
int numCharsRead;
while ((numCharsRead = initialReader.read(charBuffer, 0, charBuffer.length)) != -1) {
builder.append(charBuffer, 0, numCharsRead);
}
final InputStream targetStream = new ByteArrayInputStream(builder.toString().getBytes());
initialReader.close();
targetStream.close();
}
@Test
public void givenUsingGuava_whenConvertingReaderIntoInputStream_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("With Guava");
final InputStream targetStream = new ByteArrayInputStream(CharStreams.toString(initialReader).getBytes());
initialReader.close();
targetStream.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingReaderIntoInputStream() throws IOException {
final Reader initialReader = new StringReader("With Commons IO");
final InputStream targetStream = IOUtils.toInputStream(IOUtils.toString(initialReader));
initialReader.close();
targetStream.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingReaderIntoInputStream_thenCorrect() throws IOException {
String initialString = "With Commons IO";
final Reader initialReader = new StringReader(initialString);
final InputStream targetStream = IOUtils.toInputStream(IOUtils.toString(initialReader));
final String finalString = IOUtils.toString(targetStream);
assertThat(finalString, equalTo(initialString));
initialReader.close();
targetStream.close();
}
// tests - Reader to InputStream with encoding
@Test
public void givenUsingPlainJava_whenConvertingReaderIntoInputStreamWithCharset() throws IOException {
final Reader initialReader = new StringReader("With Java");
final char[] charBuffer = new char[8 * 1024];
final StringBuilder builder = new StringBuilder();
int numCharsRead;
while ((numCharsRead = initialReader.read(charBuffer, 0, charBuffer.length)) != -1) {
builder.append(charBuffer, 0, numCharsRead);
}
final InputStream targetStream = new ByteArrayInputStream(builder.toString().getBytes(StandardCharsets.UTF_8));
initialReader.close();
targetStream.close();
}
@Test
public void givenUsingGuava_whenConvertingReaderIntoInputStreamWithCharset_thenCorrect() throws IOException {
final Reader initialReader = new StringReader("With Guava");
final InputStream targetStream = new ByteArrayInputStream(CharStreams.toString(initialReader).getBytes(Charsets.UTF_8));
initialReader.close();
targetStream.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingReaderIntoInputStreamWithEncoding() throws IOException {
final Reader initialReader = new StringReader("With Commons IO");
final InputStream targetStream = IOUtils.toInputStream(IOUtils.toString(initialReader), Charsets.UTF_8);
initialReader.close();
targetStream.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingReaderIntoInputStreamWithEncoding_thenCorrect() throws IOException {
String initialString = "With Commons IO";
final Reader initialReader = new StringReader(initialString);
final InputStream targetStream = IOUtils.toInputStream(IOUtils.toString(initialReader), Charsets.UTF_8);
String finalString = IOUtils.toString(targetStream, Charsets.UTF_8);
assertThat(finalString, equalTo(initialString));
initialReader.close();
targetStream.close();
}
}

View File

@@ -1,11 +0,0 @@
package org.baeldung.java.io;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JavaXToByteArrayUnitTest {
protected final Logger logger = LoggerFactory.getLogger(getClass());
// tests - X to Byte Array
}

View File

@@ -1,147 +0,0 @@
package org.baeldung.java.io;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.nio.charset.Charset;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.io.input.CharSequenceReader;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.io.ByteSource;
import com.google.common.io.ByteStreams;
import com.google.common.io.CharSource;
public class JavaXToReaderUnitTest {
protected final Logger logger = LoggerFactory.getLogger(getClass());
// tests - String to Reader
@Test
public void givenUsingPlainJava_whenConvertingStringIntoReader_thenCorrect() throws IOException {
final String initialString = "With Plain Java";
final Reader targetReader = new StringReader(initialString);
targetReader.close();
}
@Test
public void givenUsingGuava_whenConvertingStringIntoReader_thenCorrect() throws IOException {
final String initialString = "With Google Guava";
final Reader targetReader = CharSource.wrap(initialString).openStream();
targetReader.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingStringIntoReader_thenCorrect() throws IOException {
final String initialString = "With Apache Commons IO";
final Reader targetReader = new CharSequenceReader(initialString);
targetReader.close();
}
// tests - byte array to Reader
@Test
public void givenUsingPlainJava_whenConvertingByteArrayIntoReader_thenCorrect() throws IOException {
final byte[] initialArray = "Hello world!".getBytes();
final Reader targetReader = new StringReader(new String(initialArray));
targetReader.close();
}
@Test
public void givenUsingPlainJava2_whenConvertingByteArrayIntoReader_thenCorrect() throws IOException {
final byte[] initialArray = "Hello world!".getBytes();
final Reader targetReader = new InputStreamReader(new ByteArrayInputStream(initialArray));
targetReader.close();
}
@Test
public void givenUsingGuava_whenConvertingByteArrayIntoReader_thenCorrect() throws IOException {
final byte[] initialArray = "With Guava".getBytes();
final String bufferString = new String(initialArray);
final Reader targetReader = CharSource.wrap(bufferString).openStream();
targetReader.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingByteArrayIntoReader_thenCorrect() throws IOException {
final byte[] initialArray = "With Commons IO".getBytes();
final Reader targetReader = new CharSequenceReader(new String(initialArray));
targetReader.close();
}
// tests - File to Reader
@Test
public void givenUsingPlainJava_whenConvertingFileIntoReader_thenCorrect() throws IOException {
final File initialFile = new File("src/test/resources/initialFile.txt");
initialFile.createNewFile();
final Reader targetReader = new FileReader(initialFile);
targetReader.close();
}
@Test
public void givenUsingGuava_whenConvertingFileIntoReader_thenCorrect() throws IOException {
final File initialFile = new File("src/test/resources/initialFile.txt");
com.google.common.io.Files.touch(initialFile);
final Reader targetReader = com.google.common.io.Files.newReader(initialFile, Charset.defaultCharset());
targetReader.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingFileIntoReader_thenCorrect() throws IOException {
final File initialFile = new File("src/test/resources/initialFile.txt");
FileUtils.touch(initialFile);
FileUtils.write(initialFile, "With Commons IO");
final byte[] buffer = FileUtils.readFileToByteArray(initialFile);
final Reader targetReader = new CharSequenceReader(new String(buffer));
targetReader.close();
}
// tests - InputStream to Reader
@Test
public void givenUsingPlainJava_whenConvertingInputStreamIntoReader_thenCorrect() throws IOException {
final InputStream initialStream = new ByteArrayInputStream("With Java".getBytes());
final Reader targetReader = new InputStreamReader(initialStream);
targetReader.close();
}
@Test
public void givenUsingGuava_whenConvertingInputStreamIntoReader_thenCorrect() throws IOException {
final InputStream initialStream = ByteSource.wrap("With Guava".getBytes()).openStream();
final byte[] buffer = ByteStreams.toByteArray(initialStream);
final Reader targetReader = CharSource.wrap(new String(buffer)).openStream();
targetReader.close();
}
@Test
public void givenUsingCommonsIO_whenConvertingInputStreamIntoReader_thenCorrect() throws IOException {
final InputStream initialStream = IOUtils.toInputStream("With Commons IO");
final byte[] buffer = IOUtils.toByteArray(initialStream);
final Reader targetReader = new CharSequenceReader(new String(buffer));
targetReader.close();
}
}

View File

@@ -1,186 +0,0 @@
package org.baeldung.writetofile;
import static org.junit.Assert.assertEquals;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;
import java.nio.channels.OverlappingFileLockException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import org.junit.Test;
public class JavaWriteToFileUnitTest {
private String fileName = "src/test/resources/test_write.txt";
private String fileName1 = "src/test/resources/test_write_1.txt";
private String fileName2 = "src/test/resources/test_write_2.txt";
private String fileName3 = "src/test/resources/test_write_3.txt";
private String fileName4 = "src/test/resources/test_write_4.txt";
private String fileName5 = "src/test/resources/test_write_5.txt";
@Test
public void whenWriteStringUsingBufferedWritter_thenCorrect() throws IOException {
final String str = "Hello";
final BufferedWriter writer = new BufferedWriter(new FileWriter(fileName3));
writer.write(str);
writer.close();
}
@Test
public void whenAppendStringUsingBufferedWritter_thenOldContentShouldExistToo() throws IOException {
final String str = "World";
final BufferedWriter writer = new BufferedWriter(new FileWriter(fileName3, true));
writer.append(' ');
writer.append(str);
writer.close();
}
@Test
public void givenWritingStringToFile_whenUsingPrintWriter_thenCorrect() throws IOException {
final FileWriter fileWriter = new FileWriter(fileName);
final PrintWriter printWriter = new PrintWriter(fileWriter);
printWriter.print("Some String");
printWriter.printf("Product name is %s and its price is %d $", "iPhone", 1000);
printWriter.close();
}
@Test
public void givenWritingStringToFile_whenUsingFileOutputStream_thenCorrect() throws IOException {
final String str = "Hello";
final FileOutputStream outputStream = new FileOutputStream(fileName3);
final byte[] strToBytes = str.getBytes();
outputStream.write(strToBytes);
outputStream.close();
}
//
@Test
public void givenWritingToFile_whenUsingDataOutputStream_thenCorrect() throws IOException {
final String value = "Hello";
final FileOutputStream fos = new FileOutputStream(fileName1);
final DataOutputStream outStream = new DataOutputStream(new BufferedOutputStream(fos));
outStream.writeUTF(value);
outStream.close();
String result;
final FileInputStream fis = new FileInputStream(fileName1);
final DataInputStream reader = new DataInputStream(fis);
result = reader.readUTF();
reader.close();
assertEquals(value, result);
}
@Test
public void whenWritingToSpecificPositionInFile_thenCorrect() throws IOException {
final int data1 = 2014;
final int data2 = 1500;
writeToPosition(fileName2, data1, 4);
assertEquals(data1, readFromPosition(fileName2, 4));
writeToPosition(fileName2, data2, 4);
assertEquals(data2, readFromPosition(fileName2, 4));
}
@Test
public void whenTryToLockFile_thenItShouldBeLocked() throws IOException {
final RandomAccessFile stream = new RandomAccessFile(fileName4, "rw");
final FileChannel channel = stream.getChannel();
FileLock lock = null;
try {
lock = channel.tryLock();
} catch (final OverlappingFileLockException e) {
stream.close();
channel.close();
}
stream.writeChars("test lock");
lock.release();
stream.close();
channel.close();
}
@Test
public void givenWritingToFile_whenUsingFileChannel_thenCorrect() throws IOException {
final RandomAccessFile stream = new RandomAccessFile(fileName5, "rw");
final FileChannel channel = stream.getChannel();
final String value = "Hello";
final byte[] strBytes = value.getBytes();
final ByteBuffer buffer = ByteBuffer.allocate(strBytes.length);
buffer.put(strBytes);
buffer.flip();
channel.write(buffer);
stream.close();
channel.close();
final RandomAccessFile reader = new RandomAccessFile(fileName5, "r");
assertEquals(value, reader.readLine());
reader.close();
}
@Test
public void whenWriteToTmpFile_thenCorrect() throws IOException {
final String toWrite = "Hello";
final File tmpFile = File.createTempFile("test", ".tmp");
final FileWriter writer = new FileWriter(tmpFile);
writer.write(toWrite);
writer.close();
final BufferedReader reader = new BufferedReader(new FileReader(tmpFile));
assertEquals(toWrite, reader.readLine());
reader.close();
}
@Test
public void givenUsingJava7_whenWritingToFile_thenCorrect() throws IOException {
final String str = "Hello";
final Path path = Paths.get(fileName3);
final byte[] strToBytes = str.getBytes();
Files.write(path, strToBytes);
final String read = Files.readAllLines(path, Charset.defaultCharset()).get(0);
assertEquals(str, read);
}
// UTIL
// use RandomAccessFile to write data at specific position in the file
private void writeToPosition(final String filename, final int data, final long position) throws IOException {
final RandomAccessFile writer = new RandomAccessFile(filename, "rw");
writer.seek(position);
writer.writeInt(data);
writer.close();
}
// use RandomAccessFile to read data from specific position in the file
private int readFromPosition(final String filename, final long position) throws IOException {
int result = 0;
final RandomAccessFile reader = new RandomAccessFile(filename, "r");
reader.seek(position);
result = reader.readInt();
reader.close();
return result;
}
}

View File

@@ -1,13 +0,0 @@
*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear

View File

@@ -1,2 +0,0 @@
files will be copied here and then deleted
remove `file.delete()` to see the files here

File diff suppressed because it is too large Load Diff

View File

@@ -1 +0,0 @@
This example shows how we can delete the file contents without deleting the file

View File

@@ -1 +0,0 @@
With Commons IO

View File

@@ -1 +0,0 @@
This is a sample txt file for unit test ListFilesUnitTest

View File

@@ -1 +0,0 @@
Hello World

View File

@@ -1 +0,0 @@
Some textSome text

View File

@@ -1 +0,0 @@
Some StringProduct name is iPhone and its price is 1000 $