PGBulkLoaderMeta.java

/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2017 by Pentaho : 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.
 *
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package org.pentaho.di.trans.steps.pgbulkloader;

import java.util.List;

import org.pentaho.di.core.CheckResult;
import org.pentaho.di.core.CheckResultInterface;
import org.pentaho.di.core.Const;
import org.pentaho.di.core.util.Utils;
import org.pentaho.di.core.KettleAttributeInterface;
import org.pentaho.di.core.ProvidesDatabaseConnectionInformation;
import org.pentaho.di.core.SQLStatement;
import org.pentaho.di.core.database.Database;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.exception.KettleStepException;
import org.pentaho.di.core.exception.KettleXMLException;
import org.pentaho.di.core.row.RowMeta;
import org.pentaho.di.core.row.RowMetaInterface;
import org.pentaho.di.core.row.ValueMetaInterface;
import org.pentaho.di.core.variables.VariableSpace;
import org.pentaho.di.core.xml.XMLHandler;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.repository.ObjectId;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.shared.SharedObjectInterface;
import org.pentaho.di.trans.DatabaseImpact;
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.StepInjectionMetaEntry;
import org.pentaho.di.trans.step.StepInterface;
import org.pentaho.di.trans.step.StepMeta;
import org.pentaho.di.trans.step.StepMetaInjectionInterface;
import org.pentaho.di.trans.step.StepMetaInterface;
import org.pentaho.metastore.api.IMetaStore;
import org.w3c.dom.Node;

/**
 * Created on 20-feb-2007
 *
 * @author Sven Boden (originally)
 */
public class PGBulkLoaderMeta extends BaseStepMeta implements StepMetaInjectionInterface, StepMetaInterface,
  ProvidesDatabaseConnectionInformation {

  private static Class<?> PKG = PGBulkLoaderMeta.class; // for i18n purposes, needed by Translator2!!

  /** what's the schema for the target? */
  private String schemaName;

  /** what's the table for the target? */
  private String tableName;

  /** database connection */
  private DatabaseMeta databaseMeta;

  /** Field value to dateMask after lookup */
  private String[] fieldTable;

  /** Field name in the stream */
  private String[] fieldStream;

  /** boolean indicating if field needs to be updated */
  private String[] dateMask;

  /** Load action */
  private String loadAction;

  /** Database name override */
  private String dbNameOverride;

  /** The field delimiter to use for loading */
  private String delimiter;

  /** The enclosure to use for loading */
  private String enclosure;

  /** Stop On Error */
  private boolean stopOnError;

  /*
   * Do not translate following values!!! They are will end up in the job export.
   */
  public static final String ACTION_INSERT = "INSERT";
  public static final String ACTION_TRUNCATE = "TRUNCATE";

  /*
   * Do not translate following values!!! They are will end up in the job export.
   */
  public static final String DATE_MASK_PASS_THROUGH = "PASS THROUGH";
  public static final String DATE_MASK_DATE = "DATE";
  public static final String DATE_MASK_DATETIME = "DATETIME";

  public static final int NR_DATE_MASK_PASS_THROUGH = 0;
  public static final int NR_DATE_MASK_DATE = 1;
  public static final int NR_DATE_MASK_DATETIME = 2;

  public PGBulkLoaderMeta() {
    super();
  }

  /**
   * @return Returns the database.
   */
  public DatabaseMeta getDatabaseMeta() {
    return databaseMeta;
  }

  /**
   * @param database
   *          The database to set.
   */
  public void setDatabaseMeta( DatabaseMeta database ) {
    this.databaseMeta = database;
  }

  /**
   * @return Returns the tableName.
   */
  public String getTableName() {
    return tableName;
  }

  /**
   * @param tableName
   *          The tableName to set.
   */
  public void setTableName( String tableName ) {
    this.tableName = tableName;
  }

  /**
   * @return Returns the fieldTable.
   */
  public String[] getFieldTable() {
    return fieldTable;
  }

  /**
   * @param fieldTable
   *          The fieldTable to set.
   */
  public void setFieldTable( String[] fieldTable ) {
    this.fieldTable = fieldTable;
  }

  /**
   * @return Returns the fieldStream.
   */
  public String[] getFieldStream() {
    return fieldStream;
  }

  /**
   * @param fieldStream
   *          The fieldStream to set.
   */
  public void setFieldStream( String[] fieldStream ) {
    this.fieldStream = fieldStream;
  }

  public String[] getDateMask() {
    return dateMask;
  }

  public void setDateMask( String[] dateMask ) {
    this.dateMask = dateMask;
  }

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

  public void allocate( int nrvalues ) {
    fieldTable = new String[nrvalues];
    fieldStream = new String[nrvalues];
    dateMask = new String[nrvalues];
  }

  public Object clone() {
    PGBulkLoaderMeta retval = (PGBulkLoaderMeta) super.clone();
    int nrvalues = fieldTable.length;

    retval.allocate( nrvalues );
    System.arraycopy( fieldTable, 0, retval.fieldTable, 0, nrvalues );
    System.arraycopy( fieldStream, 0, retval.fieldStream, 0, nrvalues );
    System.arraycopy( dateMask, 0, retval.dateMask, 0, nrvalues );
    return retval;
  }

  private void readData( Node stepnode, List<? extends SharedObjectInterface> databases ) throws KettleXMLException {
    try {
      String con = XMLHandler.getTagValue( stepnode, "connection" );
      databaseMeta = DatabaseMeta.findDatabase( databases, con );

      schemaName = XMLHandler.getTagValue( stepnode, "schema" );
      tableName = XMLHandler.getTagValue( stepnode, "table" );

      enclosure = XMLHandler.getTagValue( stepnode, "enclosure" );
      delimiter = XMLHandler.getTagValue( stepnode, "delimiter" );

      loadAction = XMLHandler.getTagValue( stepnode, "load_action" );
      dbNameOverride = XMLHandler.getTagValue( stepnode, "dbname_override" );
      stopOnError = "Y".equalsIgnoreCase( XMLHandler.getTagValue( stepnode, "stop_on_error" ) );

      int nrvalues = XMLHandler.countNodes( stepnode, "mapping" );
      allocate( nrvalues );

      for ( int i = 0; i < nrvalues; i++ ) {
        Node vnode = XMLHandler.getSubNodeByNr( stepnode, "mapping", i );

        fieldTable[i] = XMLHandler.getTagValue( vnode, "stream_name" );
        fieldStream[i] = XMLHandler.getTagValue( vnode, "field_name" );
        if ( fieldStream[i] == null ) {
          fieldStream[i] = fieldTable[i]; // default: the same name!
        }
        String locDateMask = XMLHandler.getTagValue( vnode, "date_mask" );
        if ( locDateMask == null ) {
          dateMask[i] = "";
        } else {
          if ( PGBulkLoaderMeta.DATE_MASK_DATE.equals( locDateMask )
            || PGBulkLoaderMeta.DATE_MASK_PASS_THROUGH.equals( locDateMask )
            || PGBulkLoaderMeta.DATE_MASK_DATETIME.equals( locDateMask ) ) {
            dateMask[i] = locDateMask;
          } else {
            dateMask[i] = "";
          }
        }
      }
    } catch ( Exception e ) {
      throw new KettleXMLException( BaseMessages.getString(
        PKG, "GPBulkLoaderMeta.Exception.UnableToReadStepInfoFromXML" ), e );
    }
  }

  public void setDefault() {
    fieldTable = null;
    databaseMeta = null;
    schemaName = "";
    tableName = BaseMessages.getString( PKG, "GPBulkLoaderMeta.DefaultTableName" );
    dbNameOverride = "";
    delimiter = ";";
    enclosure = "\"";
    stopOnError = false;
    int nrvalues = 0;
    allocate( nrvalues );
  }

  public String getXML() {
    StringBuilder retval = new StringBuilder( 300 );

    retval
      .append( "    " ).append(
        XMLHandler.addTagValue( "connection", databaseMeta == null ? "" : databaseMeta.getName() ) );
    retval.append( "    " ).append( XMLHandler.addTagValue( "schema", schemaName ) );
    retval.append( "    " ).append( XMLHandler.addTagValue( "table", tableName ) );
    retval.append( "    " ).append( XMLHandler.addTagValue( "load_action", loadAction ) );
    retval.append( "    " ).append( XMLHandler.addTagValue( "dbname_override", dbNameOverride ) );
    retval.append( "    " ).append( XMLHandler.addTagValue( "enclosure", enclosure ) );
    retval.append( "    " ).append( XMLHandler.addTagValue( "delimiter", delimiter ) );
    retval.append( "    " ).append( XMLHandler.addTagValue( "stop_on_error", stopOnError ) );

    for ( int i = 0; i < fieldTable.length; i++ ) {
      retval.append( "      <mapping>" ).append( Const.CR );
      retval.append( "        " ).append( XMLHandler.addTagValue( "stream_name", fieldTable[i] ) );
      retval.append( "        " ).append( XMLHandler.addTagValue( "field_name", fieldStream[i] ) );
      retval.append( "        " ).append( XMLHandler.addTagValue( "date_mask", dateMask[i] ) );
      retval.append( "      </mapping>" ).append( Const.CR );
    }

    return retval.toString();
  }

  public void readRep( Repository rep, IMetaStore metaStore, ObjectId id_step, List<DatabaseMeta> databases ) throws KettleException {
    try {
      databaseMeta = rep.loadDatabaseMetaFromStepAttribute( id_step, "id_connection", databases );
      schemaName = rep.getStepAttributeString( id_step, "schema" );
      tableName = rep.getStepAttributeString( id_step, "table" );
      loadAction = rep.getStepAttributeString( id_step, "load_action" );
      stopOnError = rep.getStepAttributeBoolean( id_step, "stop_on_error" );

      dbNameOverride = rep.getStepAttributeString( id_step, "dbname_override" );
      enclosure = rep.getStepAttributeString( id_step, "enclosure" );
      delimiter = rep.getStepAttributeString( id_step, "delimiter" );

      int nrvalues = rep.countNrStepAttributes( id_step, "stream_name" );

      allocate( nrvalues );

      for ( int i = 0; i < nrvalues; i++ ) {
        fieldTable[i] = rep.getStepAttributeString( id_step, i, "stream_name" );
        fieldStream[i] = rep.getStepAttributeString( id_step, i, "field_name" );
        dateMask[i] = rep.getStepAttributeString( id_step, i, "date_mask" );
      }
    } catch ( Exception e ) {
      throw new KettleException( BaseMessages.getString(
        PKG, "GPBulkLoaderMeta.Exception.UnexpectedErrorReadingStepInfoFromRepository" ), e );
    }
  }

  public void saveRep( Repository rep, IMetaStore metaStore, ObjectId id_transformation, ObjectId id_step ) throws KettleException {
    try {
      rep.saveDatabaseMetaStepAttribute( id_transformation, id_step, "id_connection", databaseMeta );

      rep.saveStepAttribute( id_transformation, id_step, "schema", schemaName );
      rep.saveStepAttribute( id_transformation, id_step, "table", tableName );

      rep.saveStepAttribute( id_transformation, id_step, "load_action", loadAction );

      rep.saveStepAttribute( id_transformation, id_step, "dbname_override", dbNameOverride );
      rep.saveStepAttribute( id_transformation, id_step, "enclosure", enclosure );
      rep.saveStepAttribute( id_transformation, id_step, "delimiter", delimiter );
      rep.saveStepAttribute( id_transformation, id_step, "stop_on_error", stopOnError );

      for ( int i = 0; i < fieldTable.length; i++ ) {
        rep.saveStepAttribute( id_transformation, id_step, i, "stream_name", fieldTable[i] );
        rep.saveStepAttribute( id_transformation, id_step, i, "field_name", fieldStream[i] );
        rep.saveStepAttribute( id_transformation, id_step, i, "date_mask", dateMask[i] );
      }

      // Also, save the step-database relationship!
      if ( databaseMeta != null ) {
        rep.insertStepDatabase( id_transformation, id_step, databaseMeta.getObjectId() );
      }
    } catch ( Exception e ) {
      throw new KettleException( BaseMessages.getString(
        PKG, "GPBulkLoaderMeta.Exception.UnableToSaveStepInfoToRepository" )
        + id_step, e );
    }
  }

  public void getFields( RowMetaInterface rowMeta, String origin, RowMetaInterface[] info, StepMeta nextStep,
    VariableSpace space, Repository repository, IMetaStore metaStore ) throws KettleStepException {
    // Default: nothing changes to rowMeta
  }

  public void check( List<CheckResultInterface> remarks, TransMeta transMeta, StepMeta stepMeta,
    RowMetaInterface prev, String[] input, String[] output, RowMetaInterface info, VariableSpace space,
    Repository repository, IMetaStore metaStore ) {
    CheckResult cr;
    String error_message = "";

    if ( databaseMeta != null ) {
      Database db = new Database( loggingObject, databaseMeta );
      db.shareVariablesWith( transMeta );
      try {
        db.connect();

        if ( !Utils.isEmpty( tableName ) ) {
          cr =
            new CheckResult( CheckResultInterface.TYPE_RESULT_OK, BaseMessages.getString(
              PKG, "GPBulkLoaderMeta.CheckResult.TableNameOK" ), stepMeta );
          remarks.add( cr );

          boolean first = true;
          boolean error_found = false;
          error_message = "";

          // Check fields in table
          String schemaTable =
            databaseMeta.getQuotedSchemaTableCombination(
              transMeta.environmentSubstitute( schemaName ), transMeta.environmentSubstitute( tableName ) );
          RowMetaInterface r = db.getTableFields( schemaTable );
          if ( r != null ) {
            cr =
              new CheckResult( CheckResultInterface.TYPE_RESULT_OK, BaseMessages.getString(
                PKG, "GPBulkLoaderMeta.CheckResult.TableExists" ), stepMeta );
            remarks.add( cr );

            // How about the fields to insert/dateMask in the table?
            first = true;
            error_found = false;
            error_message = "";

            for ( int i = 0; i < fieldTable.length; i++ ) {
              String field = fieldTable[i];

              ValueMetaInterface v = r.searchValueMeta( field );
              if ( v == null ) {
                if ( first ) {
                  first = false;
                  error_message +=
                    BaseMessages
                      .getString( PKG, "GPBulkLoaderMeta.CheckResult.MissingFieldsToLoadInTargetTable" )
                      + Const.CR;
                }
                error_found = true;
                error_message += "\t\t" + field + Const.CR;
              }
            }
            if ( error_found ) {
              cr = new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, error_message, stepMeta );
            } else {
              cr =
                new CheckResult( CheckResultInterface.TYPE_RESULT_OK, BaseMessages.getString(
                  PKG, "GPBulkLoaderMeta.CheckResult.AllFieldsFoundInTargetTable" ), stepMeta );
            }
            remarks.add( cr );
          } else {
            error_message = BaseMessages.getString( PKG, "GPBulkLoaderMeta.CheckResult.CouldNotReadTableInfo" );
            cr = new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, error_message, stepMeta );
            remarks.add( cr );
          }
        }

        // Look up fields in the input stream <prev>
        if ( prev != null && prev.size() > 0 ) {
          cr =
            new CheckResult( CheckResultInterface.TYPE_RESULT_OK, BaseMessages.getString(
              PKG, "GPBulkLoaderMeta.CheckResult.StepReceivingDatas", prev.size() + "" ), stepMeta );
          remarks.add( cr );

          boolean first = true;
          error_message = "";
          boolean error_found = false;

          for ( int i = 0; i < fieldStream.length; i++ ) {
            ValueMetaInterface v = prev.searchValueMeta( fieldStream[i] );
            if ( v == null ) {
              if ( first ) {
                first = false;
                error_message +=
                  BaseMessages.getString( PKG, "GPBulkLoaderMeta.CheckResult.MissingFieldsInInput" ) + Const.CR;
              }
              error_found = true;
              error_message += "\t\t" + fieldStream[i] + Const.CR;
            }
          }
          if ( error_found ) {
            cr = new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, error_message, stepMeta );
          } else {
            cr =
              new CheckResult( CheckResultInterface.TYPE_RESULT_OK, BaseMessages.getString(
                PKG, "GPBulkLoaderMeta.CheckResult.AllFieldsFoundInInput" ), stepMeta );
          }
          remarks.add( cr );
        } else {
          error_message =
            BaseMessages.getString( PKG, "GPBulkLoaderMeta.CheckResult.MissingFieldsInInput3" ) + Const.CR;
          cr = new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, error_message, stepMeta );
          remarks.add( cr );
        }
      } catch ( KettleException e ) {
        error_message =
          BaseMessages.getString( PKG, "GPBulkLoaderMeta.CheckResult.DatabaseErrorOccurred" ) + e.getMessage();
        cr = new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, error_message, stepMeta );
        remarks.add( cr );
      } finally {
        db.disconnect();
      }
    } else {
      error_message = BaseMessages.getString( PKG, "GPBulkLoaderMeta.CheckResult.InvalidConnection" );
      cr = new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, error_message, stepMeta );
      remarks.add( cr );
    }

    // See if we have input streams leading to this step!
    if ( input.length > 0 ) {
      cr =
        new CheckResult( CheckResultInterface.TYPE_RESULT_OK, BaseMessages.getString(
          PKG, "GPBulkLoaderMeta.CheckResult.StepReceivingInfoFromOtherSteps" ), stepMeta );
      remarks.add( cr );
    } else {
      cr =
        new CheckResult( CheckResultInterface.TYPE_RESULT_ERROR, BaseMessages.getString(
          PKG, "GPBulkLoaderMeta.CheckResult.NoInputError" ), stepMeta );
      remarks.add( cr );
    }
  }

  public SQLStatement getSQLStatements( TransMeta transMeta, StepMeta stepMeta, RowMetaInterface prev,
    Repository repository, IMetaStore metaStore ) throws KettleStepException {
    SQLStatement retval = new SQLStatement( stepMeta.getName(), databaseMeta, null ); // default: nothing to do!

    if ( databaseMeta != null ) {
      if ( prev != null && prev.size() > 0 ) {
        // Copy the row
        RowMetaInterface tableFields = new RowMeta();

        // Now change the field names
        for ( int i = 0; i < fieldTable.length; i++ ) {
          ValueMetaInterface v = prev.searchValueMeta( fieldStream[i] );
          if ( v != null ) {
            ValueMetaInterface tableField = v.clone();
            tableField.setName( fieldTable[i] );
            tableFields.addValueMeta( tableField );
          } else {
            throw new KettleStepException( "Unable to find field [" + fieldStream[i] + "] in the input rows" );
          }
        }

        if ( !Utils.isEmpty( tableName ) ) {
          Database db = new Database( loggingObject, databaseMeta );
          db.shareVariablesWith( transMeta );
          try {
            db.connect();

            String schemaTable =
              databaseMeta.getQuotedSchemaTableCombination(
                transMeta.environmentSubstitute( schemaName ), transMeta.environmentSubstitute( tableName ) );
            String sql = db.getDDL( schemaTable, tableFields, null, false, null, true );

            if ( sql.length() == 0 ) {
              retval.setSQL( null );
            } else {
              retval.setSQL( sql );
            }
          } catch ( KettleException e ) {
            retval.setError( BaseMessages.getString( PKG, "GPBulkLoaderMeta.GetSQL.ErrorOccurred" )
              + e.getMessage() );
          }
        } else {
          retval.setError( BaseMessages.getString( PKG, "GPBulkLoaderMeta.GetSQL.NoTableDefinedOnConnection" ) );
        }
      } else {
        retval.setError( BaseMessages.getString( PKG, "GPBulkLoaderMeta.GetSQL.NotReceivingAnyFields" ) );
      }
    } else {
      retval.setError( BaseMessages.getString( PKG, "GPBulkLoaderMeta.GetSQL.NoConnectionDefined" ) );
    }

    return retval;
  }

  public void analyseImpact( List<DatabaseImpact> impact, TransMeta transMeta, StepMeta stepMeta,
    RowMetaInterface prev, String[] input, String[] output, RowMetaInterface info, Repository repository,
    IMetaStore metaStore ) throws KettleStepException {
    if ( prev != null ) {
      /* DEBUG CHECK THIS */
      // Insert dateMask fields : read/write
      for ( int i = 0; i < fieldTable.length; i++ ) {
        ValueMetaInterface v = prev.searchValueMeta( fieldStream[i] );

        DatabaseImpact ii =
          new DatabaseImpact(
            DatabaseImpact.TYPE_IMPACT_READ_WRITE, transMeta.getName(), stepMeta.getName(), databaseMeta
              .getDatabaseName(), transMeta.environmentSubstitute( tableName ), fieldTable[i],
            fieldStream[i], v != null ? v.getOrigin() : "?", "", "Type = " + v.toStringMeta() );
        impact.add( ii );
      }
    }
  }

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

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

  public DatabaseMeta[] getUsedDatabaseConnections() {
    if ( databaseMeta != null ) {
      return new DatabaseMeta[] { databaseMeta };
    } else {
      return super.getUsedDatabaseConnections();
    }
  }

  public RowMetaInterface getRequiredFields( VariableSpace space ) throws KettleException {
    String realTableName = space.environmentSubstitute( tableName );
    String realSchemaName = space.environmentSubstitute( schemaName );

    if ( databaseMeta != null ) {
      Database db = new Database( loggingObject, databaseMeta );
      try {
        db.connect();

        if ( !Utils.isEmpty( realTableName ) ) {
          String schemaTable = databaseMeta.getQuotedSchemaTableCombination( realSchemaName, realTableName );

          // Check if this table exists...
          if ( db.checkTableExists( schemaTable ) ) {
            return db.getTableFields( schemaTable );
          } else {
            throw new KettleException( BaseMessages.getString( PKG, "GPBulkLoaderMeta.Exception.TableNotFound" ) );
          }
        } else {
          throw new KettleException( BaseMessages.getString( PKG, "GPBulkLoaderMeta.Exception.TableNotSpecified" ) );
        }
      } catch ( Exception e ) {
        throw new KettleException(
          BaseMessages.getString( PKG, "GPBulkLoaderMeta.Exception.ErrorGettingFields" ), e );
      } finally {
        db.disconnect();
      }
    } else {
      throw new KettleException( BaseMessages.getString( PKG, "GPBulkLoaderMeta.Exception.ConnectionNotDefined" ) );
    }

  }

  /**
   * @return the schemaName
   */
  public String getSchemaName() {
    return schemaName;
  }

  /**
   * @param schemaName
   *          the schemaName to set
   */
  public void setSchemaName( String schemaName ) {
    this.schemaName = schemaName;
  }

  public void setLoadAction( String action ) {
    this.loadAction = action;
  }

  public String getLoadAction() {
    return this.loadAction;
  }

  public String getDelimiter() {
    return delimiter;
  }

  public String getEnclosure() {
    return enclosure;
  }

  public String getDbNameOverride() {
    return dbNameOverride;
  }

  public void setDbNameOverride( String dbNameOverride ) {
    this.dbNameOverride = dbNameOverride;
  }

  public void setDelimiter( String delimiter ) {
    this.delimiter = delimiter;
  }

  public void setEnclosure( String enclosure ) {
    this.enclosure = enclosure;
  }

  @Override
  public String getMissingDatabaseConnectionInformationMessage() {
    // TODO Auto-generated method stub
    return null;
  }

  public boolean isStopOnError() {
    return this.stopOnError;
  }

  public void setStopOnError( Boolean value ) {
    this.stopOnError = value;
  }

  public void setStopOnError( boolean value ) {
    this.stopOnError = value;
  }

  public StepMetaInjectionInterface getStepMetaInjectionInterface() {
    return this;
  }

  /**
   * Describe the metadata attributes that can be injected into this step metadata object.
   */
  public List<StepInjectionMetaEntry> getStepInjectionMetadataEntries() {
    return getStepInjectionMetadataEntries( PKG );
  }

  public void injectStepMetadataEntries( List<StepInjectionMetaEntry> metadata ) {
    for ( StepInjectionMetaEntry entry : metadata ) {
      KettleAttributeInterface attr = findAttribute( entry.getKey() );

      // Set top level attributes...
      //
      if ( entry.getValueType() != ValueMetaInterface.TYPE_NONE ) {

        if ( entry.getKey().equals( "SCHEMA" ) ) {
          schemaName = (String) entry.getValue();
        } else if ( entry.getKey().equals( "TABLE" ) ) {
          tableName = (String) entry.getValue();
        } else if ( entry.getKey().equals( "LOADACTION" ) ) {
          loadAction = (String) entry.getValue();
        } else if ( entry.getKey().equals( "DBNAMEOVERRIDE" ) ) {
          dbNameOverride = (String) entry.getValue();
        } else if ( entry.getKey().equals( "ENCLOSURE" ) ) {
          enclosure = (String) entry.getValue();
        } else if ( entry.getKey().equals( "DELIMITER" ) ) {
          delimiter = (String) entry.getValue();
        } else if ( entry.getKey().equals( "STOPONERROR" ) ) {
          stopOnError = (Boolean) entry.getValue();
        } else {
          throw new RuntimeException( "Unhandled metadata injection of attribute: "
            + attr.toString() + " - " + attr.getDescription() );
        }
      } else {
        // The data sets...
        //
        if ( attr.getKey().equals( "MAPPINGS" ) ) {
          List<StepInjectionMetaEntry> selectMappings = entry.getDetails();

          fieldTable = new String[selectMappings.size()];
          fieldStream = new String[selectMappings.size()];
          dateMask = new String[selectMappings.size()];

          for ( int row = 0; row < selectMappings.size(); row++ ) {
            StepInjectionMetaEntry selectField = selectMappings.get( row );

            List<StepInjectionMetaEntry> fieldAttributes = selectField.getDetails();
            //CHECKSTYLE:Indentation:OFF
            for ( int i = 0; i < fieldAttributes.size(); i++ ) {
              StepInjectionMetaEntry fieldAttribute = fieldAttributes.get( i );
              KettleAttributeInterface fieldAttr = findAttribute( fieldAttribute.getKey() );

              String attributeValue = (String) fieldAttribute.getValue();
              if ( fieldAttr.getKey().equals( "STREAMNAME" ) ) {
                getFieldStream()[row] = attributeValue;
              } else if ( fieldAttr.getKey().equals( "FIELDNAME" ) ) {
                getFieldTable()[row] = attributeValue;
              } else if ( fieldAttr.getKey().equals( "DATEMASK" ) ) {
                getDateMask()[row] = attributeValue;
              } else {
                throw new RuntimeException( "Unhandled metadata injection of attribute: "
                  + fieldAttr.toString() + " - " + fieldAttr.getDescription() );
              }
            }
          }
        }
        if ( !Utils.isEmpty( getFieldStream() ) ) {
          for ( int i = 0; i < getFieldStream().length; i++ ) {
            logDetailed( "row " + Integer.toString( i ) + ": stream=" + getFieldStream()[i]
              + " : table=" + getFieldTable()[i] );
          }
        }

      }
    }
  }

  public List<StepInjectionMetaEntry> extractStepMetadataEntries() throws KettleException {
    return null;
  }

}