/*
* JGrass - Free Open Source Java GIS http://www.jgrass.org
* (C) HydroloGIS - www.hydrologis.com
*
* 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 HydroloGIS BSD
* License v1.0 (http://udig.refractions.net/files/hsd3-v10.html).
*/
package org.locationtech.udig.catalog.jgrass.operations;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import org.locationtech.udig.project.ILayer;
import org.locationtech.udig.project.IMap;
import org.locationtech.udig.project.internal.commands.DeleteLayersCommand;
import org.locationtech.udig.project.ui.ApplicationGIS;
import org.locationtech.udig.ui.PlatformGIS;
import org.apache.commons.io.FileUtils;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.IWorkbenchWindowPulldownDelegate;
import org.eclipse.ui.PlatformUI;
import org.geotools.gce.grassraster.JGrassConstants;
import org.locationtech.udig.catalog.jgrass.core.JGrassMapGeoResource;
import org.locationtech.udig.catalog.jgrass.core.JGrassMapsetGeoResource;
import org.locationtech.udig.catalog.jgrass.utils.JGrassCatalogUtilities;
/**
* Action to remove a map from disk.
*
* @author Andrea Antonello (www.hydrologis.com)
*/
public class RemoveMapAction implements IObjectActionDelegate, IWorkbenchWindowActionDelegate, IWorkbenchWindowPulldownDelegate {
IStructuredSelection selection = null;
public void setActivePart( IAction action, IWorkbenchPart targetPart ) {
}
public void run( IAction action ) {
IRunnableWithProgress operation = new IRunnableWithProgress(){
public void run( final IProgressMonitor pm ) throws InvocationTargetException, InterruptedException {
Display.getDefault().syncExec(new Runnable(){
public void run() {
final Shell shell = PlatformUI.getWorkbench().getDisplay().getActiveShell();
boolean answer = MessageDialog.openQuestion(shell, "WARNING",
"Are you sure you want to remove the selected maps from disk? This can't be undone!");
if (answer) {
final List< ? > toList = selection.toList();
try {
pm.beginTask("Removing maps...", toList.size());
for( Object object : toList ) {
if (object instanceof JGrassMapGeoResource) {
JGrassMapGeoResource mr = (JGrassMapGeoResource) object;
String type = mr.getType();
if (type.equals(JGrassConstants.GRASSBINARYRASTERMAP)) {
String[] mapsetpathAndMapname = JGrassCatalogUtilities
.getMapsetpathAndMapnameFromJGrassMapGeoResource(mr);
try {
removeGrassRasterMap(mapsetpathAndMapname[0], mapsetpathAndMapname[1]);
((JGrassMapsetGeoResource) mr.parent(new NullProgressMonitor())).removeMap(
mapsetpathAndMapname[1], JGrassConstants.GRASSBINARYRASTERMAP);
IMap activeMap = ApplicationGIS.getActiveMap();
List<ILayer> mapLayers = activeMap.getMapLayers();
String mapName = mr.getTitle();
List<ILayer> toRemove = new ArrayList<ILayer>();
for( int i = 0; i < mapLayers.size(); i++ ) {
String layerName = mapLayers.get(i).getName();
if (layerName.equals(mapName)) {
// remove it from layer list
toRemove.add(mapLayers.get(i));
}
}
if (toRemove.size() > 0)
activeMap.sendCommandSync(new DeleteLayersCommand((ILayer[]) toRemove
.toArray(new ILayer[toRemove.size()])));
} catch (Exception e) {
MessageDialog.openInformation(shell, "Information",
"Problems occurred while removing the map.");
e.printStackTrace();
}
}
}
pm.worked(1);
}
} finally {
pm.done();
}
}
}
});
}
};
PlatformGIS.runInProgressDialog("Remove maps...", true, operation, true);
}
/**
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction,
* org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged( IAction action, ISelection selection ) {
if (selection instanceof IStructuredSelection)
this.selection = (IStructuredSelection) selection;
}
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose() {
}
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
*/
public void init( IWorkbenchWindow window ) {
// do nothing
}
/*
* @see org.eclipse.ui.IWorkbenchWindowPulldownDelegate#getMenu(org.eclipse.swt.widgets.Control)
*/
public Menu getMenu( Control parent ) {
return null;
}
/**
* Given the mapsetpath and the mapname, the map is removed with all its accessor files
*
* @param mapsetPath
* @param mapName
* @throws IOException
*/
public void removeGrassRasterMap( String mapsetPath, String mapName ) throws IOException {
// list of files to remove
String mappaths[] = JGrassCatalogUtilities.filesOfRasterMap(mapsetPath, mapName);
// first delete the list above, which are just files
for( int j = 0; j < mappaths.length; j++ ) {
File filetoremove = new File(mappaths[j]);
if (filetoremove.exists()) {
FileUtils.forceDelete(filetoremove);
}
}
}
}