oozie系列-Java action 輸出變量下一級action調用

步驟描述

1. workflow xml 配置
2. java 代碼輸出

---

workflow xml 配置

備註： 必須添加 <capture-output/>

<workflow-app xmlns='uri:oozie:workflow:0.1' name='java-wf'>
    <start to='java1' />
    <action name='java1'>
        <java>
            <job-tracker>${jobTracker}</job-tracker>
            <name-node>${nameNode}</name-node>
            <configuration>
               <property>
                    <name>mapred.job.queue.name</name>
                    <value>${queueName}</value>
                </property>
            </configuration>
            <main-class>org.apache.oozie.test.MyTest</main-class>
            <arg>${outputFileName}</arg>
            <capture-output/>
        </java>
        <ok to="hive2" />
        <error to="fail" />
    </action>
<action name="hive2" cred="hive2">
        <hive2 xmlns="uri:oozie:hive2-action:0.1">
            <job-tracker>${jobTracker}</job-tracker>
            <name-node>${nameNode}</name-node>
            <jdbc-url>${hiveServer2Uri}/${db}</jdbc-url>
            <password>${password}</password>
            <script>rinse.sql</script>
            <param>rinse=${wf:actionData("java-1")["PASS_ME"]}</param>
        </hive2>
        <ok to="End"/>
        <error to="Kill"/>
    </action>
    <kill name="fail">
        <message>Hive2 failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
    </kill>
    <end name='end' />
</workflow-app>

Java 代碼輸出

備註： The main() method writes a Property file to the path specified in the 'oozie.action.output.properties' ENVIRONMENT variable.

package org.apache.oozie.test;

import java.io.*;
import java.util.Properties;

public class MyTest {

   ////////////////////////////////
   // Do whatever you want in here
   ////////////////////////////////
   public static void main (String[] args)
   {
      String fileName = args[0];
      try{
         File file = new File(System.getProperty("oozie.action.output.properties"));
         Properties props = new Properties();
         props.setProperty("PASS_ME", "123456");

         OutputStream os = new FileOutputStream(file);
         props.store(os, "");
         os.close();
         System.out.println(file.getAbsolutePath());
      }
      catch (Exception e) {
         e.printStackTrace();
      }
   }
}