butlermh

/**
 * 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
 *

butlermh

/**
 * 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
 *

butlermh

 <property name="local-maven2-pattern"
    value="${user.home}/.m2/repository/[organisation]/[module]/[revision]/[module]-[revision]"
     override="false" />
...
<resolvers>
<chain ...
<filesystem
name="local-maven2"
m2compatible="true" >
 <ivy pattern="${local-maven2-pattern}.pom"/>

butlermh

<ivy-module version="1.0">
    <info .... />  
    <configurations>
        <conf name="job" description=".job file dependency"/>
    	<conf name="test" description="Test dependency"/>
    	<conf name="default" extends="job" description="Dependency required by users of .jar"/>
    </configurations>       
    <publications .... />
    <dependencies  defaultconf="*->*,!sources,!javadoc">
      <dependency org="uk.ac.gate" name="gate-core" rev="6.1" conf="job->default(*),optional(*)"/>

butlermh

<!-- resolve the job and test dependencies to different directories -->

 <target name="resolve" depends="clean-lib" description="--> resolve and retrieve dependencies with ivy">
  <mkdir dir="${job.lib.dir}"/> <!-- not usually necessary, ivy creates the directory IF there are dependencies -->
  <mkdir dir="${test.lib.dir}"/> 
  <ivy:resolve file="${ivy.file}" transitive="true"/>
  <ivy:retrieve pattern="${job.lib.dir}/[artifact]-[revision].[ext]" conf="job" />
  <ivy:retrieve pattern="${test.lib.dir}/[artifact]-[revision].[ext]" conf="test" />
</target>

butlermh

<target name="check.retrieve.necessary" description="Only retrieve jars with Ivy if necessary">
  <ivy:resolve file="${ivy.file}" transitive="true"/>
  <uptodate property="libs.uptodate">
  <srcfiles dir="." includes="${ivy.file}"/>
  <mapper type="merge" to="{lib.dir}/.done"/>
  </uptodate>
</target>

<target name="resolve" depends="check.retrieve.necessary" description="--> resolve and retrieve dependencies with ivy"
  unless="libs.uptodate">

butlermh

<target name="compile" depends="resolve" description="--> compile the project" unless="module.uptodate">
  <mkdir dir="${classes.dir}" />
  <javac srcdir="${src.dir}" destdir="${classes.dir}" classpathref="lib.path.id" debug="true" includeantruntime="false"/>
</target>
    
<target name="jar" depends="version, compile, copyclasses" description="--> make a jar file for this project" unless="module.uptodate">
  <jar destfile="${jar.file}">
    <fileset dir="${classes.dir}" />
    <manifest>
      <attribute name="Built-By" value="${user.name}"/>

butlermh

<build>
  <plugins>
  <plugin>
    <artifactId>maven-antrun-plugin</artifactId>
      <executions>
	 <execution>
	    <phase>compile</phase>
	    <configuration>
	       <tasks>
		 <property name="runtime_classpath" refid="maven.runtime.classpath" />

butlermh

import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.Mapper;
BECOME
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;

import org.apache.hadoop.mapred.FileInputFormat;
import org.apache.hadoop.mapred.SequenceFileInputFormat;
BECOME 
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;

butlermh

public class MyMapper extends MapReduceBase implements
   Mapper<InputKey, InputValue, OutputKey, OutputValue> {
BECOMES
public class MyMapper extends 
   Mapper<InputKey, InputValue, OutputKey, OutputValue> {