kettle 程序调用执行ktr转换示例代码

package com.***.dci;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.logicalcobwebs.proxool.admin.servlet.AdminServlet;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.util.EnvUtil;
import org.pentaho.di.trans.StepLoader;
import org.pentaho.di.trans.Trans;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.performance.StepPerformanceSnapShot;

public class Test {

    /**
     * @param args
     * @throws IOException
     */
    public static void main(String[] args) throws IOException {
        // 解释
        runTransformation("c:/ss.ktr");
    }

    public static void runTransformation(String filename) throws IOException {
        try {

            //初始化任务
            StepLoader.init();
            EnvUtil.environmentInit();
            TransMeta transMeta = new TransMeta(filename);
transMeta.setCapturingStepPerformanceSnapShots(true);
            Trans trans = new Trans(transMeta);
            trans.setMonitored(true);
            trans.setInitializing(true);
            trans.setPreparing(true);
            trans.setRunning(true);
            trans.setSafeModeEnabled(true);
            trans.execute(null); // You can pass arguments instead of null.
           
            //放入一个MAP存储结果
            HashMap map = new HashMap();
            trans.setStepPerformanceSnapShots(map);
            while (!trans.isFinished()) {

                if (trans.getStepPerformanceSnapShots() != null&& trans.getStepPerformanceSnapShots().size() > 0) {
                   
                    //得到所有步骤
                    Map<String, List<StepPerformanceSnapShot>> SnapShots = trans.getStepPerformanceSnapShots();
                   
                    //输出动态监控情况
                    Iterator it = SnapShots.entrySet().iterator();
                    String oneTimeOneStepInfo = "";
                    String ontTimeAllStepInfo = "";
                    while(it.hasNext())
                    {
                        Entry en = (Entry)it.next();
                        //步骤当前情况
                        ArrayList SnapShotList = (ArrayList) en.getValue();
                        if (SnapShotList != null && SnapShotList.size() > 0) {

                            StepPerformanceSnapShot SnapShot = (StepPerformanceSnapShot) SnapShotList.get(SnapShotList.size() - 1);
                               
                            oneTimeOneStepInfo = (    "StepName:"+SnapShot.getStepName()+";"
                                        +"Errors: " + SnapShot.getErrors() + ";"
                                        + "InputBufferSize: "+ SnapShot.getInputBufferSize()+ ";"
                                        + "LinesInput: " + SnapShot.getLinesInput()+ ";"
                                        + "LinesOutput: "+ SnapShot.getLinesOutput() + ";"
                                        + "LinesRead: "+ SnapShot.getLinesRead()+ ";"
                                        + "LinesRejected: "+ SnapShot.getLinesRejected()+ ";"
                                        + "LinesUpdated: "+ SnapShot.getLinesUpdated()+ ";"
                                        + "LinesWritten: "+ SnapShot.getLinesWritten()+ ";"
                                        + "OutputBufferSize: "+ SnapShot.getOutputBufferSize()+ ";"
                                        + "StepCopy: " + SnapShot.getStepCopy()+ ";"
                                        + "TimeDifference: "+ SnapShot.getTimeDifference()+ ";"
                                        + "TotalErrors: "+ SnapShot.getTotalErrors()+ ";"
                                        + "TotalLinesInput: "+ SnapShot.getTotalLinesInput()+ ";"
                                        + "TotalLinesOutput: "+ SnapShot.getTotalLinesOutput()+ ";"
                                        + "TotalLinesRead: "+ SnapShot.getTotalLinesRead()+ ";"
                                        + "TotalLinesRejected: "+ SnapShot.getTotalLinesRejected()+ ";"
                                        + "TotalLinesUpdated: "+ SnapShot.getTotalLinesUpdated()+ ";"
                                        + "TotalLinesWritten: "+ SnapShot.getTotalLinesWritten()+ ";"
                                        + "Date:"+ SnapShot.getDate() + "\n");
                           
                            ontTimeAllStepInfo+=oneTimeOneStepInfo;
                           
                        }
                        System.out.println(ontTimeAllStepInfo+"\n\n\n\n");
                    }
                   
                   
                }
            }

            System.out.println("end............");

        } catch (KettleException e) {
            // TODO Put your exception-handling code here.
            System.out.println(e);
        }
    }
   
   

}