diff --git a/spring-boot/resttemplate/.mvn/wrapper/MavenWrapperDownloader.java b/spring-boot/resttemplate/.mvn/wrapper/MavenWrapperDownloader.java new file mode 100644 index 0000000..b901097 --- /dev/null +++ b/spring-boot/resttemplate/.mvn/wrapper/MavenWrapperDownloader.java @@ -0,0 +1,117 @@ +/* + * Copyright 2007-present the original author or authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +import java.net.*; +import java.io.*; +import java.nio.channels.*; +import java.util.Properties; + +public class MavenWrapperDownloader { + + private static final String WRAPPER_VERSION = "0.5.6"; + /** + * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. + */ + private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/" + + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar"; + + /** + * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to + * use instead of the default one. + */ + private static final String MAVEN_WRAPPER_PROPERTIES_PATH = + ".mvn/wrapper/maven-wrapper.properties"; + + /** + * Path where the maven-wrapper.jar will be saved to. + */ + private static final String MAVEN_WRAPPER_JAR_PATH = + ".mvn/wrapper/maven-wrapper.jar"; + + /** + * Name of the property which should be used to override the default download url for the wrapper. + */ + private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl"; + + public static void main(String args[]) { + System.out.println("- Downloader started"); + File baseDirectory = new File(args[0]); + System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath()); + + // If the maven-wrapper.properties exists, read it and check if it contains a custom + // wrapperUrl parameter. + File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH); + String url = DEFAULT_DOWNLOAD_URL; + if(mavenWrapperPropertyFile.exists()) { + FileInputStream mavenWrapperPropertyFileInputStream = null; + try { + mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile); + Properties mavenWrapperProperties = new Properties(); + mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); + url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url); + } catch (IOException e) { + System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'"); + } finally { + try { + if(mavenWrapperPropertyFileInputStream != null) { + mavenWrapperPropertyFileInputStream.close(); + } + } catch (IOException e) { + // Ignore ... + } + } + } + System.out.println("- Downloading from: " + url); + + File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); + if(!outputFile.getParentFile().exists()) { + if(!outputFile.getParentFile().mkdirs()) { + System.out.println( + "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'"); + } + } + System.out.println("- Downloading to: " + outputFile.getAbsolutePath()); + try { + downloadFileFromURL(url, outputFile); + System.out.println("Done"); + System.exit(0); + } catch (Throwable e) { + System.out.println("- Error downloading"); + e.printStackTrace(); + System.exit(1); + } + } + + private static void downloadFileFromURL(String urlString, File destination) throws Exception { + if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) { + String username = System.getenv("MVNW_USERNAME"); + char[] password = System.getenv("MVNW_PASSWORD").toCharArray(); + Authenticator.setDefault(new Authenticator() { + @Override + protected PasswordAuthentication getPasswordAuthentication() { + return new PasswordAuthentication(username, password); + } + }); + } + URL website = new URL(urlString); + ReadableByteChannel rbc; + rbc = Channels.newChannel(website.openStream()); + FileOutputStream fos = new FileOutputStream(destination); + fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); + fos.close(); + rbc.close(); + } + +} diff --git a/spring-boot/resttemplate/.mvn/wrapper/maven-wrapper.jar b/spring-boot/resttemplate/.mvn/wrapper/maven-wrapper.jar new file mode 100644 index 0000000..2cc7d4a Binary files /dev/null and b/spring-boot/resttemplate/.mvn/wrapper/maven-wrapper.jar differ diff --git a/spring-boot/resttemplate/.mvn/wrapper/maven-wrapper.properties b/spring-boot/resttemplate/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 0000000..642d572 --- /dev/null +++ b/spring-boot/resttemplate/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1,2 @@ +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip +wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar diff --git a/spring-boot/resttemplate/README.md b/spring-boot/resttemplate/README.md new file mode 100644 index 0000000..2d549d8 --- /dev/null +++ b/spring-boot/resttemplate/README.md @@ -0,0 +1,3 @@ +# Related Blog Posts + +* [Exhaustive Guide to Spring RestTemplate](https://reflectoring.io/guide-to-resttemplate/) diff --git a/spring-boot/resttemplate/mvnw b/spring-boot/resttemplate/mvnw new file mode 100755 index 0000000..41c0f0c --- /dev/null +++ b/spring-boot/resttemplate/mvnw @@ -0,0 +1,310 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Mingw, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +########################################################################################## +# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +# This allows using the maven wrapper in projects that prohibit checking in binary data. +########################################################################################## +if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found .mvn/wrapper/maven-wrapper.jar" + fi +else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." + fi + if [ -n "$MVNW_REPOURL" ]; then + jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + else + jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + fi + while IFS="=" read key value; do + case "$key" in (wrapperUrl) jarUrl="$value"; break ;; + esac + done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" + if [ "$MVNW_VERBOSE" = true ]; then + echo "Downloading from: $jarUrl" + fi + wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" + if $cygwin; then + wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` + fi + + if command -v wget > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found wget ... using wget" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + wget "$jarUrl" -O "$wrapperJarPath" + else + wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" + fi + elif command -v curl > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found curl ... using curl" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + curl -o "$wrapperJarPath" "$jarUrl" -f + else + curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f + fi + + else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Falling back to using Java to download" + fi + javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" + # For Cygwin, switch paths to Windows format before running javac + if $cygwin; then + javaClass=`cygpath --path --windows "$javaClass"` + fi + if [ -e "$javaClass" ]; then + if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Compiling MavenWrapperDownloader.java ..." + fi + # Compiling the Java class + ("$JAVA_HOME/bin/javac" "$javaClass") + fi + if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + # Running the downloader + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Running MavenWrapperDownloader.java ..." + fi + ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") + fi + fi + fi +fi +########################################################################################## +# End of extension +########################################################################################## + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +if [ "$MVNW_VERBOSE" = true ]; then + echo $MAVEN_PROJECTBASEDIR +fi +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +# Provide a "standardized" way to retrieve the CLI args that will +# work with both Windows and non-Windows executions. +MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" +export MAVEN_CMD_LINE_ARGS + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +exec "$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" diff --git a/spring-boot/resttemplate/mvnw.cmd b/spring-boot/resttemplate/mvnw.cmd new file mode 100644 index 0000000..8611571 --- /dev/null +++ b/spring-boot/resttemplate/mvnw.cmd @@ -0,0 +1,182 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM set title of command window +title %0 +@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" +set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + +FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( + IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B +) + +@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +@REM This allows using the maven wrapper in projects that prohibit checking in binary data. +if exist %WRAPPER_JAR% ( + if "%MVNW_VERBOSE%" == "true" ( + echo Found %WRAPPER_JAR% + ) +) else ( + if not "%MVNW_REPOURL%" == "" ( + SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + ) + if "%MVNW_VERBOSE%" == "true" ( + echo Couldn't find %WRAPPER_JAR%, downloading it ... + echo Downloading from: %DOWNLOAD_URL% + ) + + powershell -Command "&{"^ + "$webclient = new-object System.Net.WebClient;"^ + "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ + "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ + "}"^ + "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ + "}" + if "%MVNW_VERBOSE%" == "true" ( + echo Finished downloading %WRAPPER_JAR% + ) +) +@REM End of extension + +@REM Provide a "standardized" way to retrieve the CLI args that will +@REM work with both Windows and non-Windows executions. +set MAVEN_CMD_LINE_ARGS=%* + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% diff --git a/spring-boot/resttemplate/pom.xml b/spring-boot/resttemplate/pom.xml new file mode 100644 index 0000000..fa6522a --- /dev/null +++ b/spring-boot/resttemplate/pom.xml @@ -0,0 +1,54 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 2.6.1 + + + io.pratik + restclient + 0.0.1-SNAPSHOT + restclient + Project to demo Spring Rest Client + + 11 + 1.4.11.1 + + + + org.springframework.boot + spring-boot-starter-web + + + + org.apache.httpcomponents + httpclient + + + + org.springframework + spring-oxm + + + + com.thoughtworks.xstream + xstream + ${xstream.version} + + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + + diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/apis/models/Product.java b/spring-boot/resttemplate/src/main/java/io/pratik/apis/models/Product.java new file mode 100644 index 0000000..7814792 --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/apis/models/Product.java @@ -0,0 +1,68 @@ +/** + * + */ +package io.pratik.apis.models; + +import java.util.UUID; + +/** + * @author pratikdas + * + */ +public class Product { + + + + public Product(String name, String brand, Double price, String sku) { + super(); + id = UUID.randomUUID().toString(); + this.name = name; + this.brand = brand; + this.price = price; + this.sku = sku; + } + private String id; + private String name; + private String brand; + private Double price; + private String sku; + public String getName() { + return name; + } + + + public String getId() { + return id; + } + + + public void setId(String id) { + this.id = id; + } + + + public void setName(String name) { + this.name = name; + } + public String getBrand() { + return brand; + } + public void setBrand(String brand) { + this.brand = brand; + } + public Double getPrice() { + return price; + } + public void setPrice(Double price) { + this.price = price; + } + public String getSku() { + return sku; + } + public void setSku(String sku) { + this.sku = sku; + } + + + +} diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/restclient/CustomErrorHandler.java b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/CustomErrorHandler.java new file mode 100644 index 0000000..65d5196 --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/CustomErrorHandler.java @@ -0,0 +1,60 @@ +/** + * + */ +package io.pratik.restclient; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStreamReader; +import java.util.stream.Collectors; + +import org.springframework.http.HttpStatus; +import org.springframework.http.client.ClientHttpResponse; +import org.springframework.web.client.ResponseErrorHandler; + +import com.fasterxml.jackson.databind.ObjectMapper; + +import io.pratik.restclient.models.RestTemplateError; + +/** + * @author pratikdas + * + */ +public class CustomErrorHandler implements ResponseErrorHandler{ + + @Override + public boolean hasError(ClientHttpResponse response) + throws IOException { + return ( + response.getStatusCode().series() == + HttpStatus.Series.CLIENT_ERROR + + || response.getStatusCode().series() == + HttpStatus.Series.SERVER_ERROR + ); + + } + + @Override + public void handleError(ClientHttpResponse response) + throws IOException { + + if (response.getStatusCode().is4xxClientError() + || response.getStatusCode().is5xxServerError()) { + + + try (BufferedReader reader = new BufferedReader(new InputStreamReader(response.getBody()))) { + String httpBodyResponse = reader.lines().collect(Collectors.joining("")); + + ObjectMapper mapper = new ObjectMapper(); + RestTemplateError restTemplateError = mapper.readValue(httpBodyResponse, RestTemplateError.class); + + + throw new RestServiceException(restTemplateError.getPath(), response.getStatusCode(), restTemplateError.getError()); + } + + } + + + } +} diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/restclient/InventoryServiceClient.java b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/InventoryServiceClient.java new file mode 100644 index 0000000..9948bc3 --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/InventoryServiceClient.java @@ -0,0 +1,41 @@ +/** + * + */ +package io.pratik.restclient; + +import java.util.Collections; + +import org.springframework.boot.web.client.RestTemplateBuilder; +import org.springframework.http.RequestEntity; +import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; +import org.springframework.stereotype.Service; +import org.springframework.web.client.RestTemplate; + +/** + * @author pratikdas + * + */ +@Service +public class InventoryServiceClient { + + private RestTemplate restTemplate; + + public InventoryServiceClient(RestTemplateBuilder builder) { + restTemplate = builder.errorHandler( + new CustomErrorHandler()) + .build(); + + restTemplate.setMessageConverters(Collections.singletonList( + new MappingJackson2HttpMessageConverter())); + + restTemplate = new RestTemplate( + Collections.singletonList(new MappingJackson2HttpMessageConverter())); + + + } + + + + + +} diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/restclient/ProductController.java b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/ProductController.java new file mode 100644 index 0000000..428b8b9 --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/ProductController.java @@ -0,0 +1,83 @@ +/** + * + */ +package io.pratik.restclient; + +import java.util.List; +import java.util.UUID; + +import javax.websocket.server.PathParam; + +import org.springframework.http.HttpStatus; +import org.springframework.http.MediaType; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.DeleteMapping; +import org.springframework.web.bind.annotation.GetMapping; +import org.springframework.web.bind.annotation.PostMapping; +import org.springframework.web.bind.annotation.PutMapping; +import org.springframework.web.bind.annotation.RequestBody; +import org.springframework.web.bind.annotation.ResponseBody; +import org.springframework.web.bind.annotation.RestController; + +import io.pratik.apis.models.Product; + +/** + * @author pratikdas + * + */ +@RestController +public class ProductController { + + private List products = List.of(new Product("Television", "Samsung",1145.67,"S001"), + new Product("Washing Machine", "LG",114.67,"L001"), + new Product("Laptop", "Apple",11453.67,"A001")); + + + @GetMapping(value="/products/{id}", produces=MediaType.APPLICATION_XML_VALUE) + public @ResponseBody Product fetchProducts(@PathParam("id") String productId){ + + return products.get(1); + } + + @GetMapping("/products") + public List fetchProducts(){ + + return products; + } + + @PostMapping("/products") + public ResponseEntity createProduct(@RequestBody Product product){ + + // Create product with ID; + String productID = UUID.randomUUID().toString(); + product.setId(productID); + products.add(product); + + return ResponseEntity.ok().body("{\"productID\":\""+productID+"\"}"); + } + + @PutMapping("/products") + public ResponseEntity updateProduct(@RequestBody Product product){ + + products.set(1, product); + // Update product. Return success or failure without response body + return ResponseEntity.ok().build(); + } + + @DeleteMapping("/products") + public ResponseEntity deleteProduct(@RequestBody Product product){ + + products.remove(1); + // Update product. Return success or failure without response body + return ResponseEntity.ok().build(); + } + + @GetMapping("/products/error") + public ResponseEntity fetchProductWithError(){ + + return ResponseEntity.status(HttpStatus.BAD_REQUEST).build(); + } + + + +} diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestConsumer.java b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestConsumer.java new file mode 100644 index 0000000..9d99128 --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestConsumer.java @@ -0,0 +1,318 @@ +/** + * + */ +package io.pratik.restclient; + +import java.net.URI; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +import java.util.Set; + +import org.springframework.boot.web.client.RestTemplateBuilder; +import org.springframework.boot.web.client.RestTemplateCustomizer; +import org.springframework.http.HttpEntity; +import org.springframework.http.HttpHeaders; +import org.springframework.http.HttpMethod; +import org.springframework.http.MediaType; +import org.springframework.http.ResponseEntity; +import org.springframework.http.client.ClientHttpRequestFactory; +import org.springframework.http.client.HttpComponentsClientHttpRequestFactory; +import org.springframework.http.converter.HttpMessageConverter; +import org.springframework.http.converter.xml.MarshallingHttpMessageConverter; +import org.springframework.oxm.xstream.XStreamMarshaller; +import org.springframework.util.LinkedMultiValueMap; +import org.springframework.util.MultiValueMap; +import org.springframework.web.client.RequestCallback; +import org.springframework.web.client.ResponseExtractor; +import org.springframework.web.client.RestTemplate; + +import com.fasterxml.jackson.databind.ObjectMapper; + +import io.pratik.apis.models.Product; + +/** + * @author pratikdas + * + */ +public class RestConsumer { + + public void getProductAsJson() { + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + ResponseEntity response + = restTemplate.getForEntity(resourceUrl, String.class); + + String productsJson = response.getBody(); + + System.out.println(productsJson); + } + + public void getProducts() { + //RestTemplate restTemplate = new RestTemplate(getClientHttpRequestFactory()); + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + ResponseEntity response + = restTemplate.getForEntity(resourceUrl, List.class); + + List products = response.getBody(); + System.out.println(products); + } + + public void getProductObjects() { + //RestTemplate restTemplate = new RestTemplate(getClientHttpRequestFactory()); + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + List products + = restTemplate.getForObject(resourceUrl, List.class); + + System.out.println(products); + } + + public void getHeaders() { + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + HttpHeaders httpHeaders = restTemplate.headForHeaders(resourceUrl); + System.out.println("headers "+httpHeaders); + } + + public void createProduct() { + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + HttpEntity request = new HttpEntity(new Product("Television", "Samsung",1145.67,"S001")); + String productCreateResponse = restTemplate.postForObject(resourceUrl, request, String.class); + + + + System.out.println(productCreateResponse); + } + + public void createProductWithExchange() { + + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + HttpEntity request = new HttpEntity(new Product("Television", "Samsung",1145.67,"S001")); + ResponseEntity productCreateResponse = restTemplate.exchange(resourceUrl, HttpMethod.POST, request, String.class); + + + + System.out.println(productCreateResponse); + } + + public void updateProductWithExchange() { + RestTemplate restTemplate = new RestTemplate(); + + HttpHeaders headers = new HttpHeaders(); + headers.setContentType(MediaType.APPLICATION_JSON); + headers.set("Authorization", "Bearer ..."); + + String resourceUrl + = "http://localhost:8080/products"; + HttpEntity request = new HttpEntity(new Product("Television", "Samsung",1145.67,"S001")); + restTemplate.exchange(resourceUrl, HttpMethod.PUT, request, Void.class); + + + } + + private RequestCallback requestCallback(final Product updatedProduct) { + return clientHttpRequest -> { + ObjectMapper mapper = new ObjectMapper(); + mapper.writeValue(clientHttpRequest.getBody(), updatedProduct); + clientHttpRequest.getHeaders().add( + HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE); + clientHttpRequest.getHeaders().add( + HttpHeaders.AUTHORIZATION, "Bearer Ahwye82939jeb "); + }; + } + + public void getProductAsStream() { + final Product updatedProduct = new Product("Television", "Samsung",1145.67,"S001"); + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + + + RequestCallback requestCallback = request -> request.getHeaders() + .setAccept(Arrays.asList(MediaType.APPLICATION_OCTET_STREAM, MediaType.ALL)); + + ResponseExtractor responseExtractor = response -> { + Path path = Paths.get("some/path"); + Files.copy(response.getBody(), path); + return null; + }; + restTemplate.execute(resourceUrl, HttpMethod.GET, requestCallback(updatedProduct), responseExtractor ); + + + } + + + public void submitProductForm() { + RestTemplate restTemplate = new RestTemplate(); + String resourceUrl + = "http://localhost:8080/products"; + + HttpHeaders headers = new HttpHeaders(); + headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED); + + MultiValueMap map= new LinkedMultiValueMap<>(); + map.add("id", "1"); + + HttpEntity> request = new HttpEntity<>(map, headers); + + ResponseEntity response = restTemplate.postForEntity( + resourceUrl+"/form", request , String.class); + + + + + System.out.println(response.getBody()); + } + + private ClientHttpRequestFactory getClientHttpRequestFactory() { + int connectTimeout = 5000; + int readTimeout = 5000; + HttpComponentsClientHttpRequestFactory clientHttpRequestFactory + = new HttpComponentsClientHttpRequestFactory(); + clientHttpRequestFactory.setConnectTimeout(connectTimeout); + clientHttpRequestFactory.setReadTimeout(readTimeout); + return clientHttpRequestFactory; + } + + public void createProductWithLocation() { + RestTemplate restTemplate = new RestTemplate(getClientHttpRequestFactory()); + String resourceUrl + = "http://localhost:8080/products"; + HttpEntity request = new HttpEntity(new Product("Television", "Samsung",1145.67,"S001")); + URI location = restTemplate.postForLocation(resourceUrl, request); + + + + System.out.println(location); + } + + public void getAllowedOps() { + RestTemplate restTemplate = new RestTemplate(); + + String resourceUrl + = "http://localhost:8080/products"; + Set optionsForAllow = restTemplate.optionsForAllow(resourceUrl); + HttpMethod[] supportedMethods + = {HttpMethod.GET, HttpMethod.POST, HttpMethod.PUT, HttpMethod.DELETE}; + System.out.println(optionsForAllow); + } + + public void getProductWithError() { + RestTemplate restTemplate = new RestTemplate(); + + RestTemplateCustomizer customizers = new RestTemplateCustomizer() { + + @Override + public void customize(RestTemplate restTemplate) { + restTemplate.setErrorHandler(new CustomErrorHandler()); + + + + } + }; + RestTemplateBuilder builder = new RestTemplateBuilder(customizers ); + // restTemplate = new RestTemplate();// builder.build(); + restTemplate = builder.build(); + + System.out.println("Default error handler::" + restTemplate.getErrorHandler()); + String resourceUrl + = "http://localhost:8080/product/error"; + try { + Product product + = restTemplate.getForObject(resourceUrl, Product.class); + + }catch(RestServiceException ex) { + System.out.println("error occured: ["+ ex.getError() + "] in service:: "+ ex.getServiceName()); + } + + } + + public void getProductWithMessageTransformer() { + RestTemplate restTemplate = new RestTemplate(); + + RestTemplateCustomizer customizers = new RestTemplateCustomizer() { + + @Override + public void customize(RestTemplate restTemplate) { + restTemplate.setErrorHandler(new CustomErrorHandler()); + + } + }; + RestTemplateBuilder builder = new RestTemplateBuilder(customizers ); + // restTemplate = new RestTemplate();// builder.build(); + restTemplate = builder.build(); + + System.out.println("Default error handler::" + restTemplate.getErrorHandler()); + String resourceUrl + = "http://localhost:8080/product/error"; + try { + Product product + = restTemplate.getForObject(resourceUrl, Product.class); + + }catch(RestServiceException ex) { + System.out.println("error occured: ["+ ex.getError() + "] in service:: "+ ex.getServiceName()); + } + + } + + public void getProductAsXML() { + RestTemplate restTemplate = new RestTemplate(); + restTemplate.setMessageConverters(getXmlMessageConverter()); + + HttpHeaders headers = new HttpHeaders(); + headers.setAccept(Collections.singletonList(MediaType.APPLICATION_XML)); + HttpEntity entity = new HttpEntity<>(headers); + + String productID = "P123445"; + + String resourceUrl + = "http://localhost:8080/products/"+productID; + ResponseEntity response = + restTemplate.exchange(resourceUrl, HttpMethod.GET, entity, Product.class, "1"); + Product resource = response.getBody(); + } + + private List> getXmlMessageConverter() { + XStreamMarshaller marshaller = new XStreamMarshaller(); + marshaller.setAnnotatedClasses(Product.class); + MarshallingHttpMessageConverter marshallingConverter = + new MarshallingHttpMessageConverter(marshaller); + + List> converters = new ArrayList<>(); + converters.add(marshallingConverter); + return converters; + } + + + public static void main(String[] args) { + RestConsumer restConsumer = new RestConsumer(); + + /*restConsumer.getProductAsJson(); + restConsumer.getProducts(); + restConsumer.getProductObjects(); + + restConsumer.getHeaders(); restConsumer.createProduct(); + restConsumer.getAllowedOps(); restConsumer.updateProductWithExchange(); + restConsumer.getProductAsStream(); + restConsumer.createProductWithLocation(); + */ + //restConsumer.getProductWithError(); + restConsumer.getProductAsXML(); + + } + +} diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestServiceException.java b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestServiceException.java new file mode 100644 index 0000000..c8b983c --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestServiceException.java @@ -0,0 +1,39 @@ +/** + * + */ +package io.pratik.restclient; + +import org.springframework.http.HttpStatus; + +/** + * @author pratikdas + * + */ +public class RestServiceException extends RuntimeException { + + + private static final long serialVersionUID = 1L; + + private String serviceName; + private HttpStatus statusCode; + private String error; + public RestServiceException(String serviceName, HttpStatus statusCode, String error) { + super(); + this.serviceName = serviceName; + this.statusCode = statusCode; + this.error = error; + } + public String getServiceName() { + return serviceName; + } + public HttpStatus getStatusCode() { + return statusCode; + } + public String getError() { + return error; + } + + + +} + diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestclientApplication.java b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestclientApplication.java new file mode 100644 index 0000000..3ef3364 --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/RestclientApplication.java @@ -0,0 +1,23 @@ +package io.pratik.restclient; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.boot.web.client.RestTemplateBuilder; +import org.springframework.context.annotation.Bean; +import org.springframework.web.client.RestTemplate; + +@SpringBootApplication +public class RestclientApplication { + + public static void main(String[] args) { + SpringApplication.run(RestclientApplication.class, args); + } + + @Bean + public RestTemplate restTemplate(RestTemplateBuilder builder) { + return builder.build(); + } + + + +} diff --git a/spring-boot/resttemplate/src/main/java/io/pratik/restclient/models/RestTemplateError.java b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/models/RestTemplateError.java new file mode 100644 index 0000000..9df9a61 --- /dev/null +++ b/spring-boot/resttemplate/src/main/java/io/pratik/restclient/models/RestTemplateError.java @@ -0,0 +1,42 @@ +/** + * + */ +package io.pratik.restclient.models; + +/** + * @author pratikdas + * + */ +public class RestTemplateError { + private String timestamp; + private String status; + private String error; + private String path; + public String getTimestamp() { + return timestamp; + } + public void setTimestamp(String timestamp) { + this.timestamp = timestamp; + } + public String getStatus() { + return status; + } + public void setStatus(String status) { + this.status = status; + } + public String getError() { + return error; + } + public void setError(String error) { + this.error = error; + } + public String getPath() { + return path; + } + public void setPath(String path) { + this.path = path; + } + + + +} diff --git a/spring-boot/resttemplate/src/main/resources/application.properties b/spring-boot/resttemplate/src/main/resources/application.properties new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/spring-boot/resttemplate/src/main/resources/application.properties @@ -0,0 +1 @@ +