Java程序调用kettle中的job及trans

package org.gdh.kettle.transform;

import org.pentaho.di.core.KettleEnvironment;

import org.pentaho.di.core.exception.KettleException;

import org.pentaho.di.core.exception.KettleXMLException;

import org.pentaho.di.job.Job;

import org.pentaho.di.job.JobMeta;

import org.pentaho.di.trans.Trans;

import org.pentaho.di.trans.TransMeta;

public class ReadJob {

public static void runJob(String jobname){ 

try { 

KettleEnvironment.init(); 

//jobname 是Job脚本的路径及名称 

JobMeta jobMeta = new JobMeta(jobname, null); 

Job job = new Job(null, jobMeta); 

//向Job 脚本传递参数，脚本中获取参数值：${参数名} 

//  job.setVariable(paraname, paravalue); 

job.start(); 

job.waitUntilFinished(); 

if (job.getErrors() > 0) { 

  System.out.println("decompress fail!"); 

} 

} catch (KettleException e) { 

System.out.println(e); 

} 

}

// 调用Transformation示例： 

public static void runTrans(String filename) { 

  try {

KettleEnvironment.init(); 

TransMeta transMeta = new TransMeta(filename); 

Trans trans = new Trans(transMeta); 

trans.prepareExecution(null); 

trans.startThreads(); 

trans.waitUntilFinished(); 

if (trans.getErrors()!=0) { 

System.out.println("Error"); 

}

} catch (KettleXMLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (KettleException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} 

}       

public static void main(String[] args) {

String jobname="D:/syslog_All/spoon/job_csv_bsf.kjb";

runJob(jobname);

// String filename="D:/syslog_All/spoon/csv_fm.ktr";

// runTrans(filename);

}

}

 

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public class KettleTest {
public static void main(String[] args) {
  String filename = "/wang/work/study/Kettle/sample/excel_trans.ktr";
  try {
    KettleEnvironment.init();
    EnvUtil.environmentInit();  
    TransMeta transMeta = new TransMeta(filename);
    Trans trans = new Trans(transMeta);
    trans.execute(null); // You can pass arguments instead of null.
    trans.waitUntilFinished();
    if ( trans.getErrors() > 0 )
{
      throw new RuntimeException( "There were errors during transformation execution." );
}
  }
  catch (KettleException e ) {
    // TODO Put your exception-handling code here.
    System.out.println(filename);
    System.out.println(e);
  }
}
}