Java Code Examples for org.pentaho.di.core.row.ValueMetaInterface#convertBinaryStringToNativeType()

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Example 1
Source File: SelectValues.java    From pentaho-kettle with Apache License 2.0 4 votes vote down vote up 
/**
 * Change the meta-data of certain fields.
 * <p/>
 * This, we can do VERY fast.
 * <p/>
 *
 * @param row The row to manipulate
 * @return the altered RowData array
 * @throws KettleValueException
 */
@VisibleForTesting
synchronized Object[] metadataValues( RowMetaInterface rowMeta, Object[] rowData ) throws KettleException {
  if ( data.firstmetadata ) {
    data.firstmetadata = false;

    data.metanrs = new int[ meta.getMeta().length ];
    for ( int i = 0; i < data.metanrs.length; i++ ) {
      data.metanrs[ i ] = rowMeta.indexOfValue( meta.getMeta()[ i ].getName() );
      if ( data.metanrs[ i ] < 0 ) {
        logError( BaseMessages
          .getString( PKG, "SelectValues.Log.CouldNotFindField", meta.getMeta()[ i ].getName() ) );
        setErrors( 1 );
        stopAll();
        return null;
      }
    }

    // Check for doubles in the selected fields...
    int[] cnt = new int[ meta.getMeta().length ];
    for ( int i = 0; i < meta.getMeta().length; i++ ) {
      cnt[ i ] = 0;
      for ( int j = 0; j < meta.getMeta().length; j++ ) {
        if ( meta.getMeta()[ i ].getName().equals( meta.getMeta()[ j ].getName() ) ) {
          cnt[ i ]++;
        }

        if ( cnt[ i ] > 1 ) {
          logError( BaseMessages.getString( PKG, "SelectValues.Log.FieldCouldNotSpecifiedMoreThanTwice2", meta
            .getMeta()[ i ].getName() ) );
          setErrors( 1 );
          stopAll();
          return null;
        }
      }
    }

    // Also apply the metadata on the row meta to allow us to convert the data correctly, with the correct mask.
    //
    for ( int i = 0; i < data.metanrs.length; i++ ) {
      SelectMetadataChange change = meta.getMeta()[ i ];
      ValueMetaInterface valueMeta = rowMeta.getValueMeta( data.metanrs[ i ] );
      if ( !Utils.isEmpty( change.getConversionMask() ) ) {
        valueMeta.setConversionMask( change.getConversionMask() );
      }

      valueMeta.setDateFormatLenient( change.isDateFormatLenient() );
      valueMeta.setDateFormatLocale( EnvUtil.createLocale( change.getDateFormatLocale() ) );
      valueMeta.setDateFormatTimeZone( EnvUtil.createTimeZone( change.getDateFormatTimeZone() ) );
      valueMeta.setLenientStringToNumber( change.isLenientStringToNumber() );

      if ( !Utils.isEmpty( change.getEncoding() ) ) {
        valueMeta.setStringEncoding( change.getEncoding() );
      }
      if ( !Utils.isEmpty( change.getDecimalSymbol() ) ) {
        valueMeta.setDecimalSymbol( change.getDecimalSymbol() );
      }
      if ( !Utils.isEmpty( change.getGroupingSymbol() ) ) {
        valueMeta.setGroupingSymbol( change.getGroupingSymbol() );
      }
      if ( !Utils.isEmpty( change.getCurrencySymbol() ) ) {
        valueMeta.setCurrencySymbol( change.getCurrencySymbol() );
      }
    }
  }

  //
  // Change the data too
  //
  for ( int i = 0; i < data.metanrs.length; i++ ) {
    int index = data.metanrs[ i ];
    ValueMetaInterface fromMeta = rowMeta.getValueMeta( index );
    ValueMetaInterface toMeta = data.metadataRowMeta.getValueMeta( index );

    // If we need to change from BINARY_STRING storage type to NORMAL...
    //
    try {
      if ( fromMeta.isStorageBinaryString()
        && meta.getMeta()[ i ].getStorageType() == ValueMetaInterface.STORAGE_TYPE_NORMAL ) {
        rowData[ index ] = fromMeta.convertBinaryStringToNativeType( (byte[]) rowData[ index ] );
      }
      if ( meta.getMeta()[ i ].getType() != ValueMetaInterface.TYPE_NONE && fromMeta.getType() != toMeta.getType() ) {
        rowData[ index ] = toMeta.convertData( fromMeta, rowData[ index ] );
      }
    } catch ( KettleValueException e ) {
      throw new KettleConversionException( e.getMessage(), Collections.<Exception>singletonList( e ),
        Collections.singletonList( toMeta ), rowData );
    }
  }

  return rowData;
}