/*******************************************************************************
* Copyright 2012 University of Southern California
*
* 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.
*
* This code was developed by the Information Integration Group as part
* of the Karma project at the Information Sciences Institute of the
* University of Southern California. For more information, publications,
* and related projects, please see: http://www.isi.edu/integration
******************************************************************************/
package edu.isi.karma.controller.command.publish;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import org.json.JSONException;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import edu.isi.karma.controller.command.CommandException;
import edu.isi.karma.controller.command.CommandType;
import edu.isi.karma.controller.command.WorksheetSelectionCommand;
import edu.isi.karma.controller.command.selection.SuperSelection;
import edu.isi.karma.controller.update.AbstractUpdate;
import edu.isi.karma.controller.update.ErrorUpdate;
import edu.isi.karma.controller.update.UpdateContainer;
import edu.isi.karma.geospatial.WorksheetToFeatureCollection;
import edu.isi.karma.modeling.ontology.OntologyManager;
import edu.isi.karma.rep.Worksheet;
import edu.isi.karma.rep.Workspace;
import edu.isi.karma.view.VWorkspace;
public class PublishSpatialDataCommand extends WorksheetSelectionCommand {
private enum JsonKeys {
updateType, fileUrl, worksheetId
}
private static Logger logger = LoggerFactory
.getLogger(PublishSpatialDataCommand.class);
protected PublishSpatialDataCommand(String id, String worksheetId, String selectionId) {
super(id, worksheetId, selectionId);
}
@Override
public String getCommandName() {
return this.getClass().getSimpleName();
}
@Override
public String getTitle() {
return "Export spatial data";
}
@Override
public String getDescription() {
return null;
}
@Override
public CommandType getCommandType() {
return CommandType.notInHistory;
}
@Override
public UpdateContainer doIt(Workspace workspace) throws CommandException {
Worksheet worksheet = workspace.getWorksheet(worksheetId);
SuperSelection selection = getSuperSelection(worksheet);
OntologyManager om= workspace.getOntologyManager();
WorksheetToFeatureCollection geo = new WorksheetToFeatureCollection(worksheet, om, selection);//ying
// Send an error update if no geospatial data found!
if (geo.hasNoGeospatialData()) {
return new UpdateContainer(new ErrorUpdate(
"No geospatial data found in the worksheet!"));
}
try {
geo.SaveSpatialDataAndReturnKMLString();
final String zippedSpatialDataPath = geo.getZippedSpatialDataPath();
return new UpdateContainer(new AbstractUpdate() {
@Override
public void generateJson(String prefix, PrintWriter pw,
VWorkspace vWorkspace) {
JSONObject outputObject = new JSONObject();
try {
outputObject.put(JsonKeys.updateType.name(),
"PublishSpatialDataUpdate");
outputObject.put(JsonKeys.fileUrl.name(),
"publish/SpatialData/" + zippedSpatialDataPath);
outputObject.put(JsonKeys.worksheetId.name(),
worksheetId);
pw.println(outputObject.toString(4));
} catch (JSONException e) {
logger.error("Error occured while generating JSON!");
}
}
});
} catch (FileNotFoundException e) {
logger.error("Spatial data folder not found!", e);
return new UpdateContainer(new ErrorUpdate(
"Error occurred while exporting spatial data!"));
}catch (Exception shapfileException) {
// TODO Auto-generated catch block
shapfileException.printStackTrace();
return new UpdateContainer(new ErrorUpdate(
"Error occurred while saving Shapefile!"));
}
}
@Override
public UpdateContainer undoIt(Workspace workspace) {
// TODO Auto-generated method stub
return null;
}
}