/* uDig - User Friendly Desktop Internet GIS client
* http://udig.refractions.net
* (C) 2004-2012, Refractions Research Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*/
package org.locationtech.udig.project.internal.commands.edit;
import org.locationtech.udig.core.IBlockingProvider;
import org.locationtech.udig.core.internal.FeatureUtils;
import org.locationtech.udig.project.ILayer;
import org.locationtech.udig.project.command.MapCommand;
import org.locationtech.udig.project.command.PostDeterminedEffectCommand;
import org.locationtech.udig.project.command.UndoableMapCommand;
import org.locationtech.udig.project.internal.Layer;
import org.locationtech.udig.project.internal.Messages;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.geotools.data.FeatureStore;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.factory.GeoTools;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.filter.FilterFactory;
/**
* Deletes a feature from the map.
*
* @author Jesse
* @since 1.0.0
*/
public class DeleteFeatureCommand extends AbstractEditCommand implements UndoableMapCommand,
PostDeterminedEffectCommand {
IBlockingProvider<SimpleFeature> featureProvider;
private IBlockingProvider<ILayer> layerProvider;
protected boolean done;
private SimpleFeature feature;
private ILayer oldLayer;
/**
* Construct <code>DeleteFeatureCommand</code>.
*/
public DeleteFeatureCommand( IBlockingProvider<SimpleFeature> featureProvider, IBlockingProvider<ILayer> layerProvider ) {
this.featureProvider = featureProvider;
this.layerProvider = layerProvider;
}
/**
* @see org.locationtech.udig.project.command.MapCommand#run()
*/
public void run( IProgressMonitor monitor ) throws Exception {
execute(monitor);
}
public boolean execute( IProgressMonitor monitor ) throws Exception {
monitor.beginTask(Messages.DeleteFeatureCommand_deleteFeature, 4);
monitor.worked(1);
feature = featureProvider.get(new SubProgressMonitor(monitor, 1));
if( feature==null )
return false;
oldLayer = layerProvider.get(new SubProgressMonitor(monitor, 1));
FilterFactory filterFactory = CommonFactoryFinder.getFilterFactory(GeoTools.getDefaultHints());
oldLayer.getResource(FeatureStore.class, null).removeFeatures(
filterFactory.id(FeatureUtils.stringToId(filterFactory, feature.getID())));
map.getEditManagerInternal().setEditFeature(null, null);
return true;
}
public MapCommand copy() {
return new DeleteFeatureCommand(featureProvider, layerProvider);
}
/**
* @see org.locationtech.udig.project.command.MapCommand#getName()
*/
public String getName() {
return Messages.DeleteFeatureCommand_deleteFeature;
}
/**
* @see org.locationtech.udig.project.command.UndoableCommand#rollback()
*/
public void rollback( IProgressMonitor monitor ) throws Exception {
if( feature==null )
return;
map.getEditManagerInternal().setEditFeature(feature, (Layer) oldLayer);
map.getEditManagerInternal().addFeature(feature, (Layer) oldLayer);
}
}