/*
* Copyright 2011 JBoss Inc
*
* 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.drools.guvnor.models.guided.dtable.backend.util;
import org.drools.guvnor.models.commons.backend.IUpgradeHelper;
import org.drools.guvnor.models.guided.dtable.shared.model.AttributeCol52;
import org.drools.guvnor.models.guided.dtable.shared.model.BaseColumn;
import org.drools.guvnor.models.guided.dtable.shared.model.DTCellValue52;
import org.drools.guvnor.models.guided.dtable.shared.model.GuidedDecisionTable52;
import java.util.List;
/**
* Helper class to upgrade data-types for Guided Decision Table. This
* implementation ensures the RowNumber, Salience and Duration columns have data
* of the correct data-type. Support for this was added for Guvnor v5.4.
*/
public class GuidedDecisionTableUpgradeHelper2
implements
IUpgradeHelper<GuidedDecisionTable52, GuidedDecisionTable52> {
/**
* Convert the data-types in the Decision Table model
* @param source
* @return The new DTModel
*/
public GuidedDecisionTable52 upgrade( GuidedDecisionTable52 source ) {
final GuidedDecisionTable52 destination = source;
//These are the columns we want to update
final int iRowNumberColumnIndex = 0;
Integer iSalienceColumnIndex = null;
Integer iDurationColumnIndex = null;
//Find the Salience and Duration column indexes
List<BaseColumn> allColumns = destination.getExpandedColumns();
for ( int iCol = 0; iCol < allColumns.size(); iCol++ ) {
final BaseColumn column = allColumns.get( iCol );
if ( column instanceof AttributeCol52 ) {
AttributeCol52 attributeCol = (AttributeCol52) column;
final String attributeName = attributeCol.getAttribute();
if ( GuidedDecisionTable52.SALIENCE_ATTR.equals( attributeName ) ) {
iSalienceColumnIndex = iCol;
} else if ( GuidedDecisionTable52.DURATION_ATTR.equals( attributeName ) ) {
iDurationColumnIndex = iCol;
}
}
}
//Update data-types
for ( List<DTCellValue52> row : destination.getData() ) {
//Row numbers are Integers
final int rowNumberValue = row.get( iRowNumberColumnIndex ).getNumericValue().intValue();
row.get( iRowNumberColumnIndex ).setNumericValue( rowNumberValue );
//Salience should be an Integer
if ( iSalienceColumnIndex != null ) {
final Number salienceValue = row.get( iSalienceColumnIndex ).getNumericValue();
if ( salienceValue == null ) {
row.get( iSalienceColumnIndex ).setNumericValue( (Integer) null );
} else {
row.get( iSalienceColumnIndex ).setNumericValue( salienceValue.intValue() );
}
}
//Duration should be a Long
if ( iDurationColumnIndex != null ) {
final Number durationValue = row.get( iDurationColumnIndex ).getNumericValue();
if ( durationValue == null ) {
row.get( iDurationColumnIndex ).setNumericValue( (Long) null );
} else {
row.get( iDurationColumnIndex ).setNumericValue( durationValue.longValue() );
}
}
}
return destination;
}
}