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Container pom for Pentaho Data Integration modules
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/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2017 by Hitachi Vantara : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ******************************************************************************/

package org.pentaho.di.trans.steps.filesfromresult;

import java.util.List;

import org.pentaho.di.core.CheckResult;
import org.pentaho.di.core.CheckResultInterface;
import org.pentaho.di.core.ResultFile;
import org.pentaho.di.core.RowMetaAndData;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.exception.KettleFileException;
import org.pentaho.di.core.exception.KettleStepException;
import org.pentaho.di.core.exception.KettleXMLException;
import org.pentaho.di.core.row.RowMetaInterface;
import org.pentaho.di.core.variables.VariableSpace;
import org.pentaho.di.core.vfs.KettleVFS;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.repository.ObjectId;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.trans.Trans;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.trans.step.BaseStepMeta;
import org.pentaho.di.trans.step.StepDataInterface;
import org.pentaho.di.trans.step.StepInterface;
import org.pentaho.di.trans.step.StepMeta;
import org.pentaho.di.trans.step.StepMetaInterface;
import org.pentaho.metastore.api.IMetaStore;
import org.w3c.dom.Node;

/*
 * Created on 02-jun-2003
 *
 */

public class FilesFromResultMeta extends BaseStepMeta implements StepMetaInterface {
  private static Class PKG = FilesFromResult.class; // for i18n purposes, needed by Translator2!!

  public FilesFromResultMeta() {
    super(); // allocate BaseStepMeta
  }

  public void loadXML( Node stepnode, List databases, IMetaStore metaStore ) throws KettleXMLException {
    readData( stepnode );
  }

  public Object clone() {
    Object retval = super.clone();
    return retval;
  }

  private void readData( Node stepnode ) {
  }

  public void setDefault() {
  }

  public void readRep( Repository rep, IMetaStore metaStore, ObjectId id_step, List databases ) throws KettleException {
  }

  public void saveRep( Repository rep, IMetaStore metaStore, ObjectId id_transformation, ObjectId id_step ) throws KettleException {
  }

  public void getFields( RowMetaInterface r, String name, RowMetaInterface[] info, StepMeta nextStep,
    VariableSpace space, Repository repository, IMetaStore metaStore ) throws KettleStepException {

    // Add the fields from a ResultFile
    try {
      ResultFile resultFile =
        new ResultFile(
          ResultFile.FILE_TYPE_GENERAL, KettleVFS.getFileObject( "foo.bar", space ), "parentOrigin", "origin" );
      RowMetaAndData add = resultFile.getRow();

      // Set the origin on the fields...
      for ( int i = 0; i < add.size(); i++ ) {
        add.getValueMeta( i ).setOrigin( name );
      }
      r.addRowMeta( add.getRowMeta() );
    } catch ( KettleFileException e ) {
      throw new KettleStepException( e );
    }
  }

  public void check( List remarks, TransMeta transMeta, StepMeta stepMeta,
    RowMetaInterface prev, String[] input, String[] output, RowMetaInterface info, VariableSpace space,
    Repository repository, IMetaStore metaStore ) {
    // See if we have input streams leading to this step!
    if ( input.length > 0 ) {
      CheckResult cr =
        new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, BaseMessages.getString(
          PKG, "FilesFromResultMeta.CheckResult.StepExpectingNoReadingInfoFromOtherSteps" ), stepMeta );
      remarks.add( cr );
    } else {
      CheckResult cr =
        new CheckResult( CheckResultInterface.TYPE_RESULT_OK, BaseMessages.getString(
          PKG, "FilesFromResultMeta.CheckResult.NoInputReceivedError" ), stepMeta );
      remarks.add( cr );
    }
  }

  public StepInterface getStep( StepMeta stepMeta, StepDataInterface stepDataInterface, int cnr,
    TransMeta transMeta, Trans trans ) {
    return new FilesFromResult( stepMeta, stepDataInterface, cnr, transMeta, trans );
  }

  public StepDataInterface getStepData() {
    return new FilesFromResultData();
  }

}