Java RowProducer.putRow方法代码示例

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
/**
 * Create, execute, and return the row listener attached to the output step with complete results from the
 * execution.
 * 
 * @param checkSumType Type of checksum to use (the array index of {@link CheckSumMeta#checksumtypeCodes})
 * @param compatibilityMode Use compatibility mode for CheckSum
 * @param input String to calculate checksum for
 * @return RowListener with results.
 */
private MockRowListener executeHexTest(int checkSumType, boolean compatibilityMode, String input) throws Exception {
  Trans trans = buildHexadecimalChecksumTrans(checkSumType, compatibilityMode);

  trans.prepareExecution(null);

  StepInterface output = trans.getRunThread("Output", 0); //$NON-NLS-1$
  MockRowListener listener = new MockRowListener();
  output.addRowListener(listener);

  RowProducer rp = trans.addRowProducer("CheckSum", 0); //$NON-NLS-1$
  RowMeta inputRowMeta = createStringRowMeta();
  ((BaseStep) trans.getRunThread("CheckSum", 0)).setInputRowMeta(inputRowMeta); //$NON-NLS-1$

  trans.startThreads();

  rp.putRow(inputRowMeta, new Object[] { input });
  rp.finished();

  trans.waitUntilFinished();
  trans.stopAll();
  trans.cleanup();
  return listener;
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
public void injectValue( Object key, int keyOrdinal, ITypeConverter inConverterK, Object value, int valueOrdinal,
                         ITypeConverter inConverterV, RowMeta injectorRowMeta, RowProducer rowProducer,
                         Reporter reporter )
  throws Exception {
  Object[] row = new Object[ injectorRowMeta.size() ];
  row[ keyOrdinal ] =
    inConverterK != null ? inConverterK.convert( injectorRowMeta.getValueMeta( keyOrdinal ), key ) : key;
  row[ valueOrdinal ] =
    inConverterV != null ? inConverterV.convert( injectorRowMeta.getValueMeta( valueOrdinal ), value )
      : value;

  if ( debug ) {
    setDebugStatus( reporter, "Injecting input record [" + row[ keyOrdinal ] + "] - [" + row[ valueOrdinal ] + "]" );
  }

  rowProducer.putRow( injectorRowMeta, row );
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
public void injectValue( Object key, int keyOrdinal, ITypeConverter inConverterK,
                         Object value, int valueOrdinal, ITypeConverter inConverterV,
                         RowMetaInterface injectorRowMeta, RowProducer rowProducer, Reporter reporter )
  throws Exception {
  Object[] row = new Object[ injectorRowMeta.size() ];
  row[ keyOrdinal ] =
    inConverterK != null ? inConverterK.convert( injectorRowMeta.getValueMeta( keyOrdinal ), key ) : key;
  row[ valueOrdinal ] =
    inConverterV != null ? inConverterV.convert( injectorRowMeta.getValueMeta( valueOrdinal ), value ) : value;

  if ( debug ) {
    setDebugStatus( reporter, "Injecting input record [" + row[ keyOrdinal ] + "] - [" + row[ valueOrdinal ] + "]" );
  }

  rowProducer.putRow( injectorRowMeta, row );
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
@Test
public void subTransExecutionStatisticsIsCollected() throws Exception {
  TransExecutorMeta executorMeta = getExecutorMeta( transExecutor );
  executorMeta.setExecutionTimeField( "time" );
  executorMeta.setExecutionResultTargetStepMeta( dummy );

  Trans trans = createTrans( transMeta );
  RowStepCollector endRc = listenExecutor( trans );
  RowProducer rp = trans.addRowProducer( injector.getName(), 0 );

  trans.startThreads();

  RowMetaAndData testInput = new RowMetaAndData( createRowMetaForOneField(), SAMPLE_INPUT );
  rp.putRow( testInput.getRowMeta(), testInput.getData() );
  rp.finished();

  trans.waitUntilFinished();

  assertFalse( endRc.getRowsWritten().isEmpty() );
  // execution time field
  assertNotNull( endRc.getRowsWritten().get( 0 ).getData()[ 0 ] );
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
private void generateData( RowProducer rp ) {
  RowMetaInterface rm = new RowMeta();
  rm.addValueMeta( new ValueMetaInteger( "ID" ) );
  rm.addValueMeta( new ValueMetaString( "personName" ) );
  rm.addValueMeta( new ValueMetaString( "flag" ) );
  for ( int i = 0; i < ROW_FOR_UPDATE; i++ ) {
    rp.putRow( rm.clone(), new Object[] { "personNameUpdated" + i, i, UPDATE_FLAG } );
  }
  for ( int i = ROW_FOR_UPDATE; i < ROW_FOR_UPDATE + ROW_FOR_DELETE; i++ ) {
    rp.putRow( rm.clone(), new Object[] { "personName" + i, i, DELETE_FLAG } );
  }
  for ( int i = ROW_FOR_UPDATE + ROW_FOR_DELETE; i < ROW_FOR_UPDATE + ROW_FOR_DELETE + ROW_FOR_INSERT; i++ ) {
    rp.putRow( rm.clone(), new Object[] { "personNameInserted" + i, i, INSERT_FLAG } );
  }
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
private void injectDataSetIntoStep( final Trans trans, final TransMeta transMeta,
  final String dataSetName, final MetaStoreFactory<DataSet> dataSetFactory,
  final Repository repository, final IMetaStore metaStore, final StepMeta stepMeta, 
  TransUnitTestSetLocation inputLocation ) throws MetaStoreException, KettleException {

  final DataSet dataSet = dataSetFactory.loadElement( dataSetName );
  final DataSetGroup group = dataSet.getGroup();
  final Database database = new Database( trans, group.getDatabaseMeta() );
  final LogChannelInterface log = trans.getLogChannel();
  
  final RowMetaInterface injectRowMeta = DataSetConst.getStepOutputFields(log, transMeta, stepMeta, dataSet, inputLocation);    
  final RowProducer rowProducer = trans.addRowProducer( stepMeta.getName(), 0 );

  // Look for the step into which we'll inject rows...
  //
  StepMetaDataCombi combi = null;
  for ( StepMetaDataCombi step : trans.getSteps() ) {
    if ( step.stepname.equals( stepMeta.getName() ) ) {
      combi = step;
      break;
    }
  }

  if ( combi != null ) {

    log.logBasic( "Injecting data set '" + dataSetName + "' into step '" + stepMeta.getName() + "', fields: "+injectRowMeta.toStringMeta() );
    final List<Object[]> rows = dataSet.getAllRows(log, inputLocation, injectRowMeta);
    
    // Pass rows
    try {
      Runnable runnable = new Runnable() {
        @Override
        public void run() {
          try {
            
            for( Object[] row : rows ) {
              // pass the row with the external names
              //
              rowProducer.putRow( injectRowMeta, row );                
            }
            rowProducer.finished();
            
          } catch ( Exception e ) {
            throw new RuntimeException( "Problem injecting data set '" + dataSetName + "' row into step '" + stepMeta.getName() + "'", e );
          }
        }
      };
      Thread thread = new Thread( runnable );
      thread.start();

    } finally {
      database.disconnect();
    }
  }
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
/**
 * Runs the transformation with the below input parameters
 * @param inputData JSON string
 * @param ignoreMissingPath boolean
 * @param defaultPathLeafToNull boolean
 * @return Transformation Results
 */
private List<RowMetaAndData> test(String inputData, boolean ignoreMissingPath, boolean defaultPathLeafToNull)
        throws Exception {
    KettleEnvironment.init();

    // Create a new transformation
    TransMeta transMeta = new TransMeta();
    transMeta.setName("testFastJsonInput");
    PluginRegistry registry = PluginRegistry.getInstance();

    // Create Injector
    String injectorStepName = "injector step";
    StepMeta injectorStep = TestUtilities.createInjectorStep(injectorStepName, registry);
    transMeta.addStep(injectorStep);

    // Create a FastJsonInput step
    String fastJsonInputName = "FastJsonInput step";
    StepMeta fastJsonInputStep = createFastJsonInputStep(fastJsonInputName, registry, ignoreMissingPath,
            defaultPathLeafToNull);
    transMeta.addStep(fastJsonInputStep);

    // TransHopMeta between injector step and FastJsonInput
    TransHopMeta injector_hop_fjis = new TransHopMeta(injectorStep, fastJsonInputStep);
    transMeta.addTransHop(injector_hop_fjis);

    // Create a dummy step
    String dummyStepName = "dummy step";
    StepMeta dummyStep = TestUtilities.createDummyStep(dummyStepName, registry);
    transMeta.addStep(dummyStep);

    // TransHopMeta between FastJsonInput and Dummy
    TransHopMeta fjis_hop_dummy = new TransHopMeta(fastJsonInputStep, dummyStep);
    transMeta.addTransHop(fjis_hop_dummy);

    // Execute the transformation
    Trans trans = new Trans(transMeta);
    trans.prepareExecution(null);

    // Create a row collector and add it to the dummy step interface
    StepInterface si = trans.getStepInterface(dummyStepName, 0);
    RowStepCollector dummyRowCollector = new RowStepCollector();
    si.addRowListener(dummyRowCollector);

    // Create a row producer
    RowProducer rowProducer = trans.addRowProducer(injectorStepName, 0);
    trans.startThreads();

    // create the rows
    List<RowMetaAndData> inputList = createInputData(inputData);
    for (RowMetaAndData rowMetaAndData : inputList) {
        rowProducer.putRow(rowMetaAndData.getRowMeta(), rowMetaAndData.getData());
    }
    rowProducer.finished();

    trans.waitUntilFinished();

    return dummyRowCollector.getRowsWritten();
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
/**
* Test case for injector step... also a show case on how
* to use injector.
*/
  public void testInjector() throws Exception
  {
      EnvUtil.environmentInit();

      //
      // Create a new transformation...
      //
      TransMeta transMeta = new TransMeta();
      transMeta.setName("injectortest");
  	
      StepLoader steploader = StepLoader.getInstance();            

      // 
      // create an injector step...
      //
      String injectorStepname = "injector step";
      InjectorMeta im = new InjectorMeta();
      
      // Set the information of the injector.
              
      String injectorPid = steploader.getStepPluginID(im);
      StepMeta injectorStep = new StepMeta(injectorPid, injectorStepname, (StepMetaInterface)im);
      transMeta.addStep(injectorStep);

      // 
      // Create a dummy step
      //
      String dummyStepname = "dummy step";            
      DummyTransMeta dm = new DummyTransMeta();

      String dummyPid = steploader.getStepPluginID(dm);
      StepMeta dummyStep = new StepMeta(dummyPid, dummyStepname, (StepMetaInterface)dm);
      transMeta.addStep(dummyStep);                              

      TransHopMeta hi = new TransHopMeta(injectorStep, dummyStep);
      transMeta.addTransHop(hi);
              
      // Now execute the transformation...
      Trans trans = new Trans(transMeta);

      trans.prepareExecution(null);
              
      StepInterface si = trans.getStepInterface(dummyStepname, 0);
      RowStepCollector rc = new RowStepCollector();
      si.addRowListener(rc);
      
      RowProducer rp = trans.addRowProducer(injectorStepname, 0);
      trans.startThreads();
      
      // add rows
      List<RowMetaAndData> inputList = createData();
      for (RowMetaAndData rm : inputList )
      {
      	rp.putRow(rm.getRowMeta(), rm.getData());
      }   
      rp.finished();

      trans.waitUntilFinished();   
      
      List<RowMetaAndData> resultRows = rc.getRowsWritten();
      checkRows(resultRows, inputList);
  }
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
public void testCaseSensitiveNoPreviousSort() throws Exception
{
    EnvUtil.environmentInit();

    //
    // Create a new transformation...
    //
    TransMeta transMeta = new TransMeta();
    transMeta.setName("uniquerowstest");
	
    StepLoader steploader = StepLoader.getInstance();            

    // 
    // create an injector step...
    //
    String injectorStepname = "injector step";
    InjectorMeta im = new InjectorMeta();
    
    // Set the information of the injector.                
    String injectorPid = steploader.getStepPluginID(im);
    StepMeta injectorStep = new StepMeta(injectorPid, injectorStepname, (StepMetaInterface)im);
    transMeta.addStep(injectorStep);

    // 
    // Create a unique rows step
    //
    String uniqueRowsStepname = "unique rows step";            
    UniqueRowsMeta urm = new UniqueRowsMeta();
    urm.setCompareFields(new String[] {"KEY"});
    urm.setCaseInsensitive(new boolean[] {false});

    String uniqueRowsStepPid = steploader.getStepPluginID(urm);
    StepMeta uniqueRowsStep = new StepMeta(uniqueRowsStepPid, uniqueRowsStepname, (StepMetaInterface)urm);
    transMeta.addStep(uniqueRowsStep);            

    transMeta.addTransHop(new TransHopMeta(injectorStep, uniqueRowsStep));        
    
    // 
    // Create a dummy step
    //
    String dummyStepname = "dummy step";            
    DummyTransMeta dm = new DummyTransMeta();

    String dummyPid = steploader.getStepPluginID(dm);
    StepMeta dummyStep = new StepMeta(dummyPid, dummyStepname, (StepMetaInterface)dm);
    transMeta.addStep(dummyStep);                              

    transMeta.addTransHop(new TransHopMeta(uniqueRowsStep, dummyStep));        
    
    // Now execute the transformation...
    Trans trans = new Trans(transMeta);

    trans.prepareExecution(null);
            
    StepInterface si = trans.getStepInterface(dummyStepname, 0);
    RowStepCollector dummyRc = new RowStepCollector();
    si.addRowListener(dummyRc);
    
    RowProducer rp = trans.addRowProducer(injectorStepname, 0);
    trans.startThreads();
    
    // add rows
    List<RowMetaAndData> inputList = createData();
    for ( RowMetaAndData rm : inputList )
    {
    	rp.putRow(rm.getRowMeta(), rm.getData());
    }   
    rp.finished();
 
    trans.waitUntilFinished();   
                                 
    List<RowMetaAndData> resultRows = dummyRc.getRowsWritten();
    checkRows(createResultDataCaseSensitiveNoPreviousSort(), resultRows);
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
public void testCaseInsensitiveNoPreviousSort() throws Exception
{
    EnvUtil.environmentInit();

    //
    // Create a new transformation...
    //
    TransMeta transMeta = new TransMeta();
    transMeta.setName("uniquerowstest");
    
    StepLoader steploader = StepLoader.getInstance();            

    // 
    // create an injector step...
    //
    String injectorStepname = "injector step";
    InjectorMeta im = new InjectorMeta();
    
    // Set the information of the injector.                
    String injectorPid = steploader.getStepPluginID(im);
    StepMeta injectorStep = new StepMeta(injectorPid, injectorStepname, (StepMetaInterface)im);
    transMeta.addStep(injectorStep);

    // 
    // Create a unique rows step
    //
    String uniqueRowsStepname = "unique rows step";            
    UniqueRowsMeta urm = new UniqueRowsMeta();
    urm.setCompareFields(new String[] {"KEY"});
    urm.setCaseInsensitive(new boolean[] {true});

    String uniqueRowsStepPid = steploader.getStepPluginID(urm);
    StepMeta uniqueRowsStep = new StepMeta(uniqueRowsStepPid, uniqueRowsStepname, (StepMetaInterface)urm);
    transMeta.addStep(uniqueRowsStep);            

    transMeta.addTransHop(new TransHopMeta(injectorStep, uniqueRowsStep));        
    
    // 
    // Create a dummy step
    //
    String dummyStepname = "dummy step";            
    DummyTransMeta dm = new DummyTransMeta();

    String dummyPid = steploader.getStepPluginID(dm);
    StepMeta dummyStep = new StepMeta(dummyPid, dummyStepname, (StepMetaInterface)dm);
    transMeta.addStep(dummyStep);                              

    transMeta.addTransHop(new TransHopMeta(uniqueRowsStep, dummyStep));        
    
    // Now execute the transformation...
    Trans trans = new Trans(transMeta);

    trans.prepareExecution(null);
            
    StepInterface si = trans.getStepInterface(dummyStepname, 0);
    RowStepCollector dummyRc = new RowStepCollector();
    si.addRowListener(dummyRc);
    
    RowProducer rp = trans.addRowProducer(injectorStepname, 0);
    trans.startThreads();
    
    // add rows
    List<RowMetaAndData> inputList = createData();
    for ( RowMetaAndData rm : inputList )
    {
        rp.putRow(rm.getRowMeta(), rm.getData());
    }   
    rp.finished();
 
    trans.waitUntilFinished();   
                                 
    List<RowMetaAndData> resultRows = dummyRc.getRowsWritten();
    checkRows(createResultDataCaseInsensitiveNoPreviousSort(), resultRows);
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
/**
* Test case for injector step... also a show case on how
* to use injector.
*/
  public void testInjector() throws Exception
  {
      KettleEnvironment.init();

      //
      // Create a new transformation...
      //
      TransMeta transMeta = new TransMeta();
      transMeta.setName("injectortest");
  	
      PluginRegistry registry = PluginRegistry.getInstance();            

      // 
      // create an injector step...
      //
      String injectorStepname = "injector step";
      InjectorMeta im = new InjectorMeta();
      
      // Set the information of the injector.
              
      String injectorPid = registry.getPluginId(StepPluginType.class, im);
      StepMeta injectorStep = new StepMeta(injectorPid, injectorStepname, (StepMetaInterface)im);
      transMeta.addStep(injectorStep);

      // 
      // Create a dummy step
      //
      String dummyStepname = "dummy step";            
      DummyTransMeta dm = new DummyTransMeta();

      String dummyPid = registry.getPluginId(StepPluginType.class, dm);
      StepMeta dummyStep = new StepMeta(dummyPid, dummyStepname, (StepMetaInterface)dm);
      transMeta.addStep(dummyStep);                              

      TransHopMeta hi = new TransHopMeta(injectorStep, dummyStep);
      transMeta.addTransHop(hi);
              
      // Now execute the transformation...
      Trans trans = new Trans(transMeta);

      trans.prepareExecution(null);
              
      StepInterface si = trans.getStepInterface(dummyStepname, 0);
      RowStepCollector rc = new RowStepCollector();
      si.addRowListener(rc);
      
      RowProducer rp = trans.addRowProducer(injectorStepname, 0);
      trans.startThreads();
      
      // add rows
      List<RowMetaAndData> inputList = createData();
      for (RowMetaAndData rm : inputList )
      {
      	rp.putRow(rm.getRowMeta(), rm.getData());
      }   
      rp.finished();

      trans.waitUntilFinished();   
      
      List<RowMetaAndData> resultRows = rc.getRowsWritten();
      checkRows(resultRows, inputList);
  }
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
protected Trans createAndTestTrans( PluginRegistry registry, TransMeta transMeta, StepMeta injectorStep,
  StepMeta csvInputStep, String fileName, int numRows ) throws KettleException {
  TransHopMeta hi = new TransHopMeta( injectorStep, csvInputStep );
  transMeta.addTransHop( hi );

  //
  // Create a dummy step 1
  //
  String dummyStepname1 = "dummy step 1";
  DummyTransMeta dm1 = new DummyTransMeta();

  String dummyPid1 = registry.getPluginId( StepPluginType.class, dm1 );
  StepMeta dummyStep1 = new StepMeta( dummyPid1, dummyStepname1, dm1 );
  transMeta.addStep( dummyStep1 );

  TransHopMeta hi1 = new TransHopMeta( csvInputStep, dummyStep1 );
  transMeta.addTransHop( hi1 );

  // Now execute the transformation...
  Trans trans = new Trans( transMeta );

  trans.prepareExecution( null );

  StepInterface si = trans.getStepInterface( dummyStepname1, 0 );
  RowStepCollector dummyRc1 = new RowStepCollector();
  si.addRowListener( dummyRc1 );

  RowProducer rp = trans.addRowProducer( injectorStep.getName(), 0 );
  trans.startThreads();

  // add rows
  List<RowMetaAndData> inputList = createData( fileName );
  Iterator<RowMetaAndData> it = inputList.iterator();
  while ( it.hasNext() ) {
    RowMetaAndData rm = it.next();
    rp.putRow( rm.getRowMeta(), rm.getData() );
  }
  rp.finished();

  trans.waitUntilFinished();

  // Compare the results
  List<RowMetaAndData> resultRows = dummyRc1.getRowsWritten();
  List<RowMetaAndData> goldenImageRows = createResultData1();

  checkRows( goldenImageRows, resultRows, numRows );

  return trans;
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
public void testCaseInsensitiveNoPreviousSort() throws Exception
{
    KettleEnvironment.init();

    //
    // Create a new transformation...
    //
    TransMeta transMeta = new TransMeta();
    transMeta.setName("uniquerowstest");
    
    PluginRegistry registry = PluginRegistry.getInstance();            

    // 
    // create an injector step...
    //
    String injectorStepname = "injector step";
    InjectorMeta im = new InjectorMeta();
    
    // Set the information of the injector.                
    String injectorPid = registry.getPluginId(StepPluginType.class, im);
    StepMeta injectorStep = new StepMeta(injectorPid, injectorStepname, (StepMetaInterface)im);
    transMeta.addStep(injectorStep);

    // 
    // Create a unique rows step
    //
    String uniqueRowsStepname = "unique rows step";            
    UniqueRowsMeta urm = new UniqueRowsMeta();
    urm.setCompareFields(new String[] {"KEY"});
    urm.setCaseInsensitive(new boolean[] {true});

    String uniqueRowsStepPid = registry.getPluginId(StepPluginType.class, urm);
    StepMeta uniqueRowsStep = new StepMeta(uniqueRowsStepPid, uniqueRowsStepname, (StepMetaInterface)urm);
    transMeta.addStep(uniqueRowsStep);            

    transMeta.addTransHop(new TransHopMeta(injectorStep, uniqueRowsStep));        
    
    // 
    // Create a dummy step
    //
    String dummyStepname = "dummy step";            
    DummyTransMeta dm = new DummyTransMeta();

    String dummyPid = registry.getPluginId(StepPluginType.class, dm);
    StepMeta dummyStep = new StepMeta(dummyPid, dummyStepname, (StepMetaInterface)dm);
    transMeta.addStep(dummyStep);                              

    transMeta.addTransHop(new TransHopMeta(uniqueRowsStep, dummyStep));        
    
    // Now execute the transformation...
    Trans trans = new Trans(transMeta);

    trans.prepareExecution(null);
            
    StepInterface si = trans.getStepInterface(dummyStepname, 0);
    RowStepCollector dummyRc = new RowStepCollector();
    si.addRowListener(dummyRc);
    
    RowProducer rp = trans.addRowProducer(injectorStepname, 0);
    trans.startThreads();
    
    // add rows
    List<RowMetaAndData> inputList = createData();
    for ( RowMetaAndData rm : inputList )
    {
        rp.putRow(rm.getRowMeta(), rm.getData());
    }   
    rp.finished();
 
    trans.waitUntilFinished();   
                                 
    List<RowMetaAndData> resultRows = dummyRc.getRowsWritten();
    checkRows(createResultDataCaseInsensitiveNoPreviousSort(), resultRows);
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
/**
 * Test case for injector step... also a show case on how to use injector.
 */
public void testInjector() throws Exception {
  KettleEnvironment.init();

  //
  // Create a new transformation...
  //
  TransMeta transMeta = new TransMeta();
  transMeta.setName( "injectortest" );

  PluginRegistry registry = PluginRegistry.getInstance();

  //
  // create an injector step...
  //
  String injectorStepname = "injector step";
  InjectorMeta im = new InjectorMeta();

  // Set the information of the injector.

  String injectorPid = registry.getPluginId( StepPluginType.class, im );
  StepMeta injectorStep = new StepMeta( injectorPid, injectorStepname, im );
  transMeta.addStep( injectorStep );

  //
  // Create a dummy step
  //
  String dummyStepname = "dummy step";
  DummyTransMeta dm = new DummyTransMeta();

  String dummyPid = registry.getPluginId( StepPluginType.class, dm );
  StepMeta dummyStep = new StepMeta( dummyPid, dummyStepname, dm );
  transMeta.addStep( dummyStep );

  TransHopMeta hi = new TransHopMeta( injectorStep, dummyStep );
  transMeta.addTransHop( hi );

  // Now execute the transformation...
  Trans trans = new Trans( transMeta );

  trans.prepareExecution( null );

  StepInterface si = trans.getStepInterface( dummyStepname, 0 );
  RowStepCollector rc = new RowStepCollector();
  si.addRowListener( rc );

  RowProducer rp = trans.addRowProducer( injectorStepname, 0 );
  trans.startThreads();

  // add rows
  List<RowMetaAndData> inputList = createData();
  for ( RowMetaAndData rm : inputList ) {
    rp.putRow( rm.getRowMeta(), rm.getData() );
  }
  rp.finished();

  trans.waitUntilFinished();

  List<RowMetaAndData> resultRows = rc.getRowsWritten();
  checkRows( resultRows, inputList );
}
 

import org.pentaho.di.trans.RowProducer; //导入方法依赖的package包/类
public void testCaseSensitiveNoPreviousSort() throws Exception
{
    KettleEnvironment.init();

    //
    // Create a new transformation...
    //
    TransMeta transMeta = new TransMeta();
    transMeta.setName("uniquerowstest");
	
    PluginRegistry registry = PluginRegistry.getInstance();            

    // 
    // create an injector step...
    //
    String injectorStepname = "injector step";
    InjectorMeta im = new InjectorMeta();
    
    // Set the information of the injector.                
    String injectorPid = registry.getPluginId(StepPluginType.class, im);
    StepMeta injectorStep = new StepMeta(injectorPid, injectorStepname, (StepMetaInterface)im);
    transMeta.addStep(injectorStep);

    // 
    // Create a unique rows step
    //
    String uniqueRowsStepname = "unique rows step";            
    UniqueRowsMeta urm = new UniqueRowsMeta();
    urm.setCompareFields(new String[] {"KEY"});
    urm.setCaseInsensitive(new boolean[] {false});

    String uniqueRowsStepPid = registry.getPluginId(StepPluginType.class, urm);
    StepMeta uniqueRowsStep = new StepMeta(uniqueRowsStepPid, uniqueRowsStepname, (StepMetaInterface)urm);
    transMeta.addStep(uniqueRowsStep);            

    transMeta.addTransHop(new TransHopMeta(injectorStep, uniqueRowsStep));        
    
    // 
    // Create a dummy step
    //
    String dummyStepname = "dummy step";            
    DummyTransMeta dm = new DummyTransMeta();

    String dummyPid = registry.getPluginId(StepPluginType.class, dm);
    StepMeta dummyStep = new StepMeta(dummyPid, dummyStepname, (StepMetaInterface)dm);
    transMeta.addStep(dummyStep);                              

    transMeta.addTransHop(new TransHopMeta(uniqueRowsStep, dummyStep));        
    
    // Now execute the transformation...
    Trans trans = new Trans(transMeta);

    trans.prepareExecution(null);
            
    StepInterface si = trans.getStepInterface(dummyStepname, 0);
    RowStepCollector dummyRc = new RowStepCollector();
    si.addRowListener(dummyRc);
    
    RowProducer rp = trans.addRowProducer(injectorStepname, 0);
    trans.startThreads();
    
    // add rows
    List<RowMetaAndData> inputList = createData();
    for ( RowMetaAndData rm : inputList )
    {
    	rp.putRow(rm.getRowMeta(), rm.getData());
    }   
    rp.finished();
 
    trans.waitUntilFinished();   
                                 
    List<RowMetaAndData> resultRows = dummyRc.getRowsWritten();
    checkRows(createResultDataCaseSensitiveNoPreviousSort(), resultRows);
}