eclipse插件的編譯——Hadoop1.2.0版

因爲1.0以後hadoop已經不自帶eclipse的插件包了，因此得須要咱們本身編譯源碼生成插件包。

hadoop的目錄在/root/hadoop-1.2.0下面
eclipse的目錄在/root/eclipse下面
總結一下以下的四步來完成編譯eclipse插件的過程


步驟操做1進入/root/hadoop-1.2.0/src/contrib/eclipse-plugin下面，修改build.xml2進入/root/hadoop-1.2.0/src/contrib下面，修改build-contrib.xml3/root/hadoop-1.2.0/src/contrib/eclipse-plugin/META-INF下面，修改MANIFEST.MF文件4使用shell命令進入/root/hadoop-1.2.0/src/contrib/eclipse-plugin下面，執行ant命令進行構建

下面散仙就來詳細介紹下，每一步具體怎麼操做，在第一步裏咱們須要向build.xml裏面，加入的內容有
1,eclipse的根目錄.
2.hadoop的版本號.
3.hadoop的一些引用包.
4，在javac里加入  includeantruntime="on".
內容以下所示：

<!-- 1,2步的配置  -->
<propertyname="eclipse.home"location="/root/eclipse"/>
<propertyname="version"value="1.2.0"/>
<!--第3步的配置  -->
<copyfile="${hadoop.root}/hadoop-core-${version}.jar"tofile="${build.dir}/lib/hadoop-core.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-cli-${commons-cli.version}.jar"tofile="${build.dir}/lib/commons-cli.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-configuration-1.6.jar"tofile="${build.dir}/lib/commons-configuration.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-httpclient-3.0.1.jar"tofile="${build.dir}/lib/commons-httpclient.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-lang-2.4.jar"tofile="${build.dir}/lib/commons-lang.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/jackson-core-asl-1.8.8.jar"tofile="${build.dir}/lib/jackson-core-asl.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/jackson-mapper-asl-1.8.8.jar"tofile="${build.dir}/lib/jackson-mapper-asl.jar"verbose="true"/>
<!--第4步的配置  -->
includeantruntime="on">

散仙會在下文貼出整個XML，如今咱們看第二大步的配置，修改build-contrib.xml，內容以下：

<!--  原始的爲off -->
lt;property name="javac.deprecation"value="on"/>

第三步的修改MANIFEST.MF內容以下：

Bundle-ClassPath: classes/,lib/commons-cli.jar,lib/commons-httpclient.jar,lib/hadoop-core.jar,lib/jackson-mapper-asl.jar,lib/commons-configuration.jar,lib/commons-lang.jar,lib/jackson-core-asl.jar

第四步執行命令：截圖以下：


最後，插件類生成的目錄，截圖以下：




下面散仙給出全部配置的所有信息，以供參考，下圖的是build.xml裏面的內容

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

<!--
   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.
-->

<!-- build.xml -->
<projectdefault="jar"name="eclipse-plugin">

<importfile="../build-contrib.xml"/>


<propertyname="eclipse.home"location="/root/eclipse"/>
<propertyname="version"value="1.2.0"/>

<pathid="eclipse-sdk-jars">
<filesetdir="${eclipse.home}/plugins/">
<includename="org.eclipse.ui*.jar"/>
<includename="org.eclipse.jdt*.jar"/>
<includename="org.eclipse.core*.jar"/>
<includename="org.eclipse.equinox*.jar"/>
<includename="org.eclipse.debug*.jar"/>
<includename="org.eclipse.osgi*.jar"/>
<includename="org.eclipse.swt*.jar"/>
<includename="org.eclipse.jface*.jar"/>

<includename="org.eclipse.team.cvs.ssh2*.jar"/>
<includename="com.jcraft.jsch*.jar"/>
</fileset>
</path>

<!-- Override classpath to include Eclipse SDK jars -->
<pathid="classpath">
<pathelementlocation="${build.classes}"/>
<pathelementlocation="${hadoop.root}/build/classes"/>
<filesetdir="${hadoop.root}">
<includename="**/*.jar"/>
</fileset>
<pathrefid="eclipse-sdk-jars"/>
</path>

<!-- Skip building if eclipse.home is unset. -->
<targetname="check-contrib"unless="eclipse.home">
<propertyname="skip.contrib"value="yes"/>
<echomessage="eclipse.home unset: skipping eclipse plugin"/>
</target>

<targetname="compile"depends="init, ivy-retrieve-common"unless="skip.contrib">
<echomessage="contrib: ${name}"/>
<javac
encoding="${build.encoding}"
srcdir="${src.dir}"
includes="**/*.java"
destdir="${build.classes}"
debug="${javac.debug}"
deprecation="${javac.deprecation}"
includeantruntime="on">
<classpathrefid="classpath"/>
</javac>
</target>

<!-- Override jar target to specify manifest -->
<targetname="jar"depends="compile"unless="skip.contrib">
<mkdirdir="${build.dir}/lib"/>
<!--  <copy file="${hadoop.root}/build/hadoop-core-${version}.jar" tofile="${build.dir}/lib/hadoop-core.jar" verbose="true"/> -->
<!--  <copy file="${hadoop.root}/build/ivy/lib/Hadoop/common/commons-cli-${commons-cli.version}.jar"  todir="${build.dir}/lib" verbose="true"/>-->
<copyfile="${hadoop.root}/hadoop-core-${version}.jar"tofile="${build.dir}/lib/hadoop-core.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-cli-${commons-cli.version}.jar"tofile="${build.dir}/lib/commons-cli.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-configuration-1.6.jar"tofile="${build.dir}/lib/commons-configuration.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-httpclient-3.0.1.jar"tofile="${build.dir}/lib/commons-httpclient.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/commons-lang-2.4.jar"tofile="${build.dir}/lib/commons-lang.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/jackson-core-asl-1.8.8.jar"tofile="${build.dir}/lib/jackson-core-asl.jar"verbose="true"/>
<copyfile="${hadoop.root}/lib/jackson-mapper-asl-1.8.8.jar"tofile="${build.dir}/lib/jackson-mapper-asl.jar"verbose="true"/>


<jar
jarfile="${build.dir}/hadoop-${name}-${version}.jar"
manifest="${root}/META-INF/MANIFEST.MF">
<filesetdir="${build.dir}"includes="classes/ lib/"/>
<filesetdir="${root}"includes="resources/ plugin.xml"/>
</jar>
</target>

</project>

build-contrib.xml的核心配置以下：只有一個地方，notepad++，定位截圖以下：

<propertyname="javac.deprecation"value="on"/>

下面是MANIFEST.MF裏面的內容

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: MapReduce Tools for Eclipse
Bundle-SymbolicName: org.apache.hadoop.eclipse;singleton:=true
Bundle-Version: 0.18
Bundle-Activator: org.apache.hadoop.eclipse.Activator
Bundle-Localization: plugin
Require-Bundle: org.eclipse.ui,
 org.eclipse.core.runtime,
 org.eclipse.jdt.launching,
 org.eclipse.debug.core,
 org.eclipse.jdt,
 org.eclipse.jdt.core,
 org.eclipse.core.resources,
 org.eclipse.ui.ide,
 org.eclipse.jdt.ui,
 org.eclipse.debug.ui,
 org.eclipse.jdt.debug.ui,
 org.eclipse.core.expressions,
 org.eclipse.ui.cheatsheets,
 org.eclipse.ui.console,
 org.eclipse.ui.navigator,
 org.eclipse.core.filesystem,
 org.apache.commons.logging
Eclipse-LazyStart: true
Bundle-ClassPath: classes/,lib/commons-cli.jar,lib/commons-httpclient.jar,lib/hadoop-core.jar,lib/jackson-mapper-asl.jar,lib/commons-configuration.jar,lib/commons-lang.jar,lib/jackson-core-asl.jar
Bundle-Vendor: Apache Hadoop

至此，已經ant編譯完畢，截圖以下



啓動eclipse後，截圖以下：





至此，插件已經完美生成，並運行，由於受上傳限制的影響，因此散仙在這裏上傳不了這個jar包。