编译hadoop2.x的eclipse插件

注意：以下操作基于Hadoop-2.4.1，Eclipse Luna，Win7 64位

1、下载插件源码包

https://github.com/winghc/hadoop2x-eclipse-plugin

2、新建eclipse java工程，将压缩包中以下目录的内容复制到project中（只是放到eclipse里边看而已，并不使用eclipse编译）

hadoop2x-eclipse-plugin-master.zip\hadoop2x-eclipse-plugin-master\src\contrib\eclipse-plugin

3、修改build.xml如下

<?xml version="1.0" encoding="UTF-8" standalone="no"?>

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   this work for additional information regarding copyright ownership.
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<project default="jar" name="eclipse-plugin">

	<property name="jdk.home" value="D:/Program Files/Java/jdk1.7.0_60" />
	<property name="hadoop.version" value="2.4.1" />
	<property name="hadoop.home" value="D:/Lab/lib/hadoop/hadoop-2.4.1" />
	<property name="eclipse.version" value="4.4" />
	<property name="eclipse.home" value="D:/Lab/bin/Eclipse/eclipse-jee-luna-SR1a-win32-x86_64" />
	<property name="root" value="${basedir}" />
	<property file="${root}/build.properties" />
	<property name="name" value="${ant.project.name}" />
	<property name="src.dir" location="${root}/src" />
	<property name="build.contrib.dir" location="${root}/build/contrib" />
	<property name="build.dir" location="${build.contrib.dir}/${name}" />
	<property name="build.classes" location="${build.dir}/classes" />
	<property name="javac.deprecation" value="off" />
	<property name="javac.debug" value="on" />
	<property name="build.encoding" value="UTF-8" />
	
	<path id="eclipse-sdk-jars">
	    <fileset dir="${eclipse.home}/plugins/">
        	<include name="org.eclipse.ui*.jar" />
		<include name="org.eclipse.jdt*.jar" />
		<include name="org.eclipse.core*.jar" />
		<include name="org.eclipse.equinox*.jar" />
		<include name="org.eclipse.debug*.jar" />
		<include name="org.eclipse.osgi*.jar" />
		<include name="org.eclipse.swt*.jar" />
		<include name="org.eclipse.jface*.jar" />
		<include name="org.eclipse.team.cvs.ssh2*.jar" />
		<include name="com.jcraft.jsch*.jar" />
    	    </fileset>
	</path>
	
	<path id="project-jars">
		<fileset file="${build.dir}/lib/*.jar" />
	</path>
	
	<target name="init" unless="skip.contrib">
	    <echo message="contrib: ${name}" />
	    <mkdir dir="${build.dir}" />
	    <mkdir dir="${build.classes}" />
	    <mkdir dir="${build.dir}/lib" />
	    <copy todir="${build.dir}/lib/" verbose="true">
	        <fileset dir="${hadoop.home}/share/hadoop/mapreduce">
		    <include name="hadoop*.jar" />
		    <exclude name="*test*" />
		    <exclude name="*example*" />
		</fileset>
		<fileset dir="${hadoop.home}/share/hadoop/common">
		    <include name="hadoop*.jar" />
		    <exclude name="*test*" />
		    <exclude name="*example*" />
		</fileset>
		<fileset dir="${hadoop.home}/share/hadoop/hdfs">
		    <include name="hadoop*.jar" />
		    <exclude name="*test*" />
		    <exclude name="*example*" />
		</fileset>
		<fileset dir="${hadoop.home}/share/hadoop/yarn">
		    <include name="hadoop*.jar" />
		    <exclude name="*test*" />
		    <exclude name="*example*" />
		</fileset>
		<fileset dir="${hadoop.home}/share/hadoop/common/lib">
		    <include name="protobuf-java-*.jar" />
		    <include name="log4j-*.jar" />
		    <include name="commons-cli-*.jar" />
		    <include name="commons-collections-*.jar" />
		    <include name="commons-configuration-*.jar" />
		    <include name="commons-lang-*.jar" />
		    <include name="jackson-core-asl-*.jar" />
		    <include name="jackson-mapper-asl-*.jar" />
		    <include name="slf4j-log4j12-*.jar" />
		    <include name="slf4j-api-*.jar" />
		    <include name="guava-*.jar" />
		    <include name="hadoop-annotations-*.jar" />
		    <include name="hadoop-auth-*.jar" />
		    <include name="commons-cli-*.jar" />
		    <include name="netty-*.jar" />
		</fileset>
	    </copy>
	</target>	
	<target name="compile" depends="init" unless="skip.contrib">
		<echo message="contrib: ${name}" />
		<javac fork="true" executable="${jdk.home}/bin/javac" encoding="${build.encoding}" srcdir="${src.dir}" includes="**/*.java" destdir="${build.classes}" debug="${javac.debug}" deprecation="${javac.deprecation}" includeantruntime="on">
			<classpath refid="eclipse-sdk-jars" />
			<classpath refid="project-jars" />
		</javac>
	</target>
        <target name="jar" depends="compile" unless="skip.contrib">
	    <pathconvert property="mf.classpath" pathsep=",lib/">
		<path refid="project-jars" />
	        <flattenmapper />
	    </pathconvert>
	    <jar jarfile="${build.dir}/hadoop-${hadoop.version}-eclipse-${eclipse.version}-plugin.jar" manifest="${root}/META-INF/MANIFEST.MF">
		<manifest>
		    <attribute name="Bundle-ClassPath" value="classes/,lib/${mf.classpath}" />
		</manifest>
		<fileset dir="${build.dir}" includes="classes/ lib/" />
		<fileset dir="${root}" includes="resources/ plugin.xml" />
	    </jar>
	</target>
	<target name="clean">
	    <echo message="contrib: ${name}" />
	    <delete dir="${build.dir}" />
	</target>
</project>

5、在build.xml文件上Run AS Ant Build

Buildfile: D:\Lab\ws-hadoop-2\hadoop2x-eclipse-plugin\build.xml
init:
     [echo] contrib: eclipse-plugin
compile:
     [echo] contrib: eclipse-plugin
    [javac] Compiling 45 source files to D:\Lab\ws-hadoop-2\hadoop2x-eclipse-plugin\build\contrib\eclipse-plugin\classes
    [javac] 注: 某些输入文件使用或覆盖了已过时的 API。
    [javac] 注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。
    [javac] 注: 某些输入文件使用了未经检查或不安全的操作。
    [javac] 注: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。
jar:
      [jar] Building jar: D:\Lab\ws-hadoop-2\hadoop2x-eclipse-plugin\build\contrib\eclipse-plugin\hadoop-2.4.1-eclipse-4.4-plugin.jar
BUILD SUCCESSFUL
Total time: 28 seconds

6、到这里找编译好的jar