/*
* Copyright 2012 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.workbench.screens.guided.template.client.editor;
import java.util.ArrayList;
import java.util.List;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.ui.Panel;
import org.drools.workbench.models.commons.shared.rule.InterpolationVariable;
import org.drools.workbench.models.guided.template.shared.TemplateModel;
import org.drools.workbench.screens.guided.template.client.editor.events.SetInternalTemplateDataModelEvent;
import org.drools.workbench.screens.guided.template.client.editor.events.SetTemplateDataEvent;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.AbstractDecoratedGridHeaderWidget;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.AbstractDecoratedGridSidebarWidget;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.AbstractDecoratedGridWidget;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.AbstractMergableGridWidget;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.CellValue;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.DynamicColumn;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.ResourcesProvider;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.data.DynamicData;
import org.kie.workbench.common.widgets.decoratedgrid.client.widget.events.SetModelEvent;
/**
* A Decorated Grid for Template Data
*/
public abstract class AbstractDecoratedTemplateDataGridWidget
extends AbstractDecoratedGridWidget<TemplateModel, TemplateDataColumn, String> {
//Factories to create new data elements
protected final TemplateDataCellFactory cellFactory;
protected final TemplateDataCellValueFactory cellValueFactory;
public AbstractDecoratedTemplateDataGridWidget( ResourcesProvider<TemplateDataColumn> resources,
TemplateDataCellFactory cellFactory,
TemplateDataCellValueFactory cellValueFactory,
EventBus eventBus,
Panel mainPanel,
Panel bodyPanel,
AbstractMergableGridWidget<TemplateModel, TemplateDataColumn> gridWidget,
AbstractDecoratedGridHeaderWidget<TemplateModel, TemplateDataColumn> headerWidget,
AbstractDecoratedGridSidebarWidget<TemplateModel, TemplateDataColumn> sidebarWidget ) {
super( resources,
eventBus,
mainPanel,
bodyPanel,
gridWidget,
headerWidget,
sidebarWidget );
if ( cellFactory == null ) {
throw new IllegalArgumentException( "cellFactory cannot be null" );
}
if ( cellValueFactory == null ) {
throw new IllegalArgumentException( "cellValueFactory cannot be null" );
}
this.cellFactory = cellFactory;
this.cellValueFactory = cellValueFactory;
//Wire-up event handlers
eventBus.addHandler( SetTemplateDataEvent.TYPE,
this );
}
public void onSetModel( SetModelEvent<TemplateModel> event ) {
DynamicData data = new DynamicData();
TemplateModel model = event.getModel();
List<DynamicColumn<TemplateDataColumn>> columns = new ArrayList<DynamicColumn<TemplateDataColumn>>();
setupInternalModel( model,
columns,
data );
//Raise event setting data and columns for UI components
SetInternalTemplateDataModelEvent sime = new SetInternalTemplateDataModelEvent( model,
data,
columns );
eventBus.fireEvent( sime );
}
private void setupInternalModel( TemplateModel model,
List<DynamicColumn<TemplateDataColumn>> columns,
DynamicData data ) {
//Get interpolation variables
InterpolationVariable[] vars = model.getInterpolationVariablesList();
if ( vars.length == 0 ) {
return;
}
int colIndex = 0;
String[][] modelData = model.getTableAsArray();
// Dummy rows because the underlying DecoratedGridWidget expects there
// to be enough rows to receive the columns data
for ( int iRow = 0; iRow < modelData.length; iRow++ ) {
data.addRow();
}
//Add corresponding columns to table
for ( InterpolationVariable var : vars ) {
TemplateDataColumn col = new TemplateDataColumn( var.getVarName(),
var.getDataType(),
var.getFactType(),
var.getFactField() );
DynamicColumn<TemplateDataColumn> column = new DynamicColumn<TemplateDataColumn>( col,
cellFactory.getCell( col ),
colIndex,
eventBus );
columns.add( column );
data.addColumn( colIndex,
makeColumnData( modelData,
col,
colIndex++ ),
true );
}
}
// Make a row of data for insertion into a DecoratedGridWidget
private List<CellValue<? extends Comparable<?>>> makeColumnData( String[][] data,
TemplateDataColumn column,
int colIndex ) {
int dataSize = data.length;
List<CellValue<? extends Comparable<?>>> columnData = new ArrayList<CellValue<? extends Comparable<?>>>( dataSize );
for ( int iRow = 0; iRow < dataSize; iRow++ ) {
String[] row = data[ iRow ];
//Underlying Template model uses empty Strings as null values; which is quite different in the MergedGrid world
String initialValue = row[ colIndex ];
if ( initialValue != null && initialValue.equals( "" ) ) {
initialValue = null;
}
CellValue<? extends Comparable<?>> cv = cellValueFactory.convertModelCellValue( column,
initialValue );
columnData.add( cv );
}
return columnData;
}
}