/*
* uDig - User Friendly Desktop Internet GIS client
* (C) MangoSystem - www.mangosystem.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 Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*/
package org.locationtech.udig.processingtoolbox.tools;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import org.apache.commons.io.FilenameUtils;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Widget;
import org.eclipse.ui.PlatformUI;
import org.geotools.data.FeatureSource;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.data.simple.SimpleFeatureIterator;
import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.process.spatialstatistics.core.FeatureTypes;
import org.geotools.process.spatialstatistics.operations.GeneralOperation;
import org.geotools.process.spatialstatistics.storage.IFeatureInserter;
import org.geotools.util.logging.Logging;
import org.locationtech.udig.processingtoolbox.ToolboxPlugin;
import org.locationtech.udig.processingtoolbox.ToolboxView;
import org.locationtech.udig.processingtoolbox.internal.Messages;
import org.locationtech.udig.processingtoolbox.internal.ui.OutputDataWidget;
import org.locationtech.udig.processingtoolbox.internal.ui.OutputDataWidget.FileDataType;
import org.locationtech.udig.processingtoolbox.styler.MapUtils;
import org.locationtech.udig.processingtoolbox.styler.MapUtils.VectorLayerType;
import org.locationtech.udig.project.ILayer;
import org.locationtech.udig.project.IMap;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.feature.type.AttributeDescriptor;
import org.opengis.feature.type.GeometryDescriptor;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.MultiLineString;
import com.vividsolutions.jts.geom.MultiPoint;
import com.vividsolutions.jts.geom.MultiPolygon;
import com.vividsolutions.jts.geom.Polygon;
/**
* Combines multiple input datasets of the same data type into a single, new output dataset.
*
* @author MapPlus
*/
public class MergeFeaturesDialog extends AbstractGeoProcessingDialog implements
IRunnableWithProgress {
protected static final Logger LOGGER = Logging.getLogger(MergeFeaturesDialog.class);
static final String[] columns = new String[] { Messages.Feature_Name, Messages.Feature_Type,
Messages.Feature_CRS };
private Table inputTable;
private Button btnPoint, btnLine, btnPolygon;
private Combo cboTemplate;
private SimpleFeatureCollection templateFc;
public MergeFeaturesDialog(Shell parentShell, IMap map) {
super(parentShell, map);
setShellStyle(SWT.CLOSE | SWT.MIN | SWT.TITLE | SWT.BORDER | SWT.APPLICATION_MODAL
| SWT.RESIZE);
this.windowTitle = Messages.MergeFeaturesDialog_title;
this.windowDesc = Messages.MergeFeaturesDialog_description;
this.windowSize = ToolboxPlugin.rescaleSize(parentShell, 650, 500);
}
@Override
protected Control createDialogArea(Composite parent) {
Composite area = (Composite) super.createDialogArea(parent);
Composite container = new Composite(area, SWT.BORDER);
container.setLayout(new GridLayout(2, false));
container.setLayoutData(new GridData(GridData.FILL_BOTH));
// feature types
Group group = uiBuilder.createGroup(container, Messages.Feature_FeatureType, true, 2);
group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 2, 1));
group.setLayout(new GridLayout(3, false));
btnPoint = uiBuilder.createRadioButton(group, Messages.Feature_Point, null, 1);
btnLine = uiBuilder.createRadioButton(group, Messages.Feature_LineString, null, 1);
btnPolygon = uiBuilder.createRadioButton(group, Messages.Feature_Polygon, null, 1);
btnPoint.addSelectionListener(selectionListener);
btnLine.addSelectionListener(selectionListener);
btnPolygon.addSelectionListener(selectionListener);
// template features
uiBuilder.createLabel(container, Messages.MergeFeaturesDialog_TemplateFeatures, null, 2);
cboTemplate = uiBuilder.createCombo(container, 2);
cboTemplate.addModifyListener(modifyListener);
// input features
uiBuilder.createLabel(container, Messages.MergeFeaturesDialog_InputFeatures, null, 2);
inputTable = uiBuilder.createTable(container, columns, 2);
locationView = new OutputDataWidget(FileDataType.SHAPEFILE, SWT.SAVE);
locationView.create(container, SWT.BORDER, 2, 1);
locationView.setFile(new File(ToolboxView.getWorkspace(), "merge.shp")); //$NON-NLS-1$
area.pack(true);
return area;
}
ModifyListener modifyListener = new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
Widget widget = e.widget;
if (invalidWidgetValue(widget)) {
return;
}
if (widget.equals(cboTemplate)) {
templateFc = MapUtils.getFeatures(map, cboTemplate.getText());
}
}
};
SelectionListener selectionListener = new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
Widget widget = event.widget;
VectorLayerType layerType = VectorLayerType.ALL;
if (widget.equals(btnPoint) && btnPoint.getSelection()) {
layerType = VectorLayerType.POINT;
} else if (widget.equals(btnLine) && btnLine.getSelection()) {
layerType = VectorLayerType.LINESTRING;
} else if (widget.equals(btnPolygon) && btnPolygon.getSelection()) {
layerType = VectorLayerType.POLYGON;
}
fillLayers(map, cboTemplate, layerType);
fillLayersToTable(map, inputTable, layerType);
templateFc = null;
if (cboTemplate.getItemCount() > 0) {
cboTemplate.select(0);
}
}
};
private void fillLayersToTable(IMap map, Table table, VectorLayerType layerType) {
table.removeAll();
for (ILayer layer : map.getMapLayers()) {
if (layer.getName() != null && layer.hasResource(FeatureSource.class)) {
GeometryDescriptor descriptor = layer.getSchema().getGeometryDescriptor();
Class<?> geometryBinding = descriptor.getType().getBinding();
String crs = descriptor.getCoordinateReferenceSystem().toWKT();
switch (layerType) {
case ALL:
insertTableItem(table, layer, geometryBinding.getSimpleName(), crs);
break;
case LINESTRING:
if (geometryBinding.isAssignableFrom(LineString.class)
|| geometryBinding.isAssignableFrom(MultiLineString.class)) {
insertTableItem(table, layer, geometryBinding.getSimpleName(), crs);
}
break;
case POINT:
if (geometryBinding.isAssignableFrom(com.vividsolutions.jts.geom.Point.class)
|| geometryBinding.isAssignableFrom(MultiPoint.class)) {
insertTableItem(table, layer, geometryBinding.getSimpleName(), crs);
}
break;
case POLYGON:
if (geometryBinding.isAssignableFrom(Polygon.class)
|| geometryBinding.isAssignableFrom(MultiPolygon.class)) {
insertTableItem(table, layer, geometryBinding.getSimpleName(), crs);
}
break;
case MULTIPART:
if (geometryBinding.isAssignableFrom(MultiPolygon.class)
|| geometryBinding.isAssignableFrom(MultiLineString.class)
|| geometryBinding.isAssignableFrom(MultiPoint.class)) {
insertTableItem(table, layer, geometryBinding.getSimpleName(), crs);
}
break;
case POLYLINE:
if (geometryBinding.isAssignableFrom(Point.class)
|| geometryBinding.isAssignableFrom(MultiPoint.class)
|| geometryBinding.isAssignableFrom(Polygon.class)
|| geometryBinding.isAssignableFrom(MultiPolygon.class)) {
insertTableItem(table, layer, geometryBinding.getSimpleName(), crs);
}
break;
default:
break;
}
}
}
}
private void insertTableItem(Table table, ILayer layer, String layerType, String crs) {
TableItem item = new TableItem(table, SWT.NONE);
item.setText(new String[] { layer.getName(), layerType, crs });
item.setData(layer);
}
@Override
protected void okPressed() {
if (!existCheckedItem(inputTable)) {
openInformation(getShell(), Messages.MergeFeaturesDialog_Warning);
return;
}
// check file
File outputFile = new File(locationView.getFile());
if (outputFile.exists()) {
String msg = Messages.ProcessExecutionDialog_overwriteconfirm;
if (MessageDialog.openConfirm(getParentShell(), getShell().getText(), msg)) {
if (!MapUtils.confirmSpatialFile(outputFile)) {
msg = Messages.ProcessExecutionDialog_deletefailed;
MessageDialog.openInformation(getParentShell(), getShell().getText(), msg);
return;
}
} else {
return;
}
}
try {
PlatformUI.getWorkbench().getProgressService().run(false, true, this);
openInformation(getShell(), Messages.General_Completed);
super.okPressed();
} catch (InvocationTargetException e) {
MessageDialog.openError(getShell(), Messages.General_Error, e.getMessage());
} catch (InterruptedException e) {
MessageDialog.openInformation(getShell(), Messages.General_Cancelled, e.getMessage());
}
}
@Override
public void run(IProgressMonitor monitor) throws InvocationTargetException,
InterruptedException {
monitor.beginTask(String.format(Messages.Task_Executing, windowTitle), 5);
try {
monitor.worked(increment);
List<SimpleFeatureCollection> fcList = new ArrayList<SimpleFeatureCollection>();
for (TableItem item : inputTable.getItems()) {
if (item.getChecked()) {
fcList.add(MapUtils.getFeatures((ILayer) item.getData()));
}
}
String outputName = FilenameUtils.getBaseName(locationView.getFile());
MergeOp op = new MergeOp(outputName);
op.setOutputDataStore(locationView.getDataStore());
SimpleFeatureSource sfs = op.merge(fcList, templateFc, monitor);
if (sfs != null) {
MapUtils.addFeaturesToMap(map, new File(locationView.getFile()), outputName);
} else {
ToolboxPlugin.log(windowTitle + " : Failed to merge : " + outputName); //$NON-NLS-1$
}
monitor.worked(increment);
} catch (Exception e) {
ToolboxPlugin.log(e.getMessage());
throw new InvocationTargetException(e.getCause(), e.getMessage());
} finally {
monitor.done();
}
}
static final class MergeOp extends GeneralOperation {
static final Logger LOGGER = Logging.getLogger(MergeOp.class);
private String outputName = "Merge"; //$NON-NLS-1$
public MergeOp(String outputName) {
this.outputName = outputName;
}
public SimpleFeatureSource merge(List<SimpleFeatureCollection> fcList,
SimpleFeatureCollection template, IProgressMonitor monitor) throws IOException {
if (template == null) {
template = fcList.get(0);
}
// prepare feature type
SimpleFeatureType destSchema = FeatureTypes.build(template, outputName);
// prepare transactional feature store
IFeatureInserter featureWriter = getFeatureWriter(destSchema);
try {
for (SimpleFeatureCollection inputFeatures : fcList) {
monitor.worked(1);
SimpleFeatureType inputSchema = inputFeatures.getSchema();
SimpleFeatureIterator featureIter = inputFeatures.features();
try {
while (featureIter.hasNext()) {
SimpleFeature feature = featureIter.next();
// create feature and set geometry
SimpleFeature newFeature = featureWriter.buildFeature();
for (AttributeDescriptor ad : destSchema.getAttributeDescriptors()) {
if (ad instanceof GeometryDescriptor
|| inputSchema.indexOf(ad.getName()) == -1) {
continue;
}
newFeature.setAttribute(ad.getName(),
feature.getAttribute(ad.getName()));
}
newFeature.setDefaultGeometry(feature.getDefaultGeometry());
featureWriter.write(newFeature);
}
} finally {
featureIter.close();
}
}
} catch (IOException e) {
featureWriter.rollback(e);
} finally {
featureWriter.close();
}
return featureWriter.getFeatureSource();
}
}
}