/*******************************************************************************
* 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.worksheet;
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.WorksheetCommand;
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.rep.Worksheet;
import edu.isi.karma.rep.Workspace;
import edu.isi.karma.rep.metadata.WorksheetProperties;
import edu.isi.karma.rep.metadata.WorksheetProperties.Property;
import edu.isi.karma.view.VWorkspace;
public class FetchExistingWorksheetPropertiesCommand extends WorksheetCommand {
private static Logger logger = LoggerFactory
.getLogger(FetchExistingWorksheetPropertiesCommand.class);
private enum JsonKeys {
updateType, properties
}
public FetchExistingWorksheetPropertiesCommand(String id, String worksheetId) {
super(id, worksheetId);
}
@Override
public String getCommandName() {
return this.getClass().getSimpleName();
}
@Override
public String getTitle() {
return "Fetch Worksheet Properties";
}
@Override
public String getDescription() {
return "";
}
@Override
public CommandType getCommandType() {
return CommandType.notInHistory;
}
@Override
public UpdateContainer doIt(Workspace workspace) throws CommandException {
Worksheet worksheet = workspace.getWorksheet(worksheetId);
// Check if the model name exists. If not set to a default one
String graphLabel = worksheet.getMetadataContainer().getWorksheetProperties().
getPropertyValue(Property.graphLabel);
if (graphLabel == null || graphLabel.isEmpty()) {
worksheet.getMetadataContainer().getWorksheetProperties().setPropertyValue(
Property.graphLabel, worksheet.getTitle());
graphLabel = worksheet.getTitle();
worksheet.getMetadataContainer().getWorksheetProperties().setPropertyValue(
Property.graphName, WorksheetProperties.createDefaultGraphName(graphLabel));
}
String baseURI = worksheet.getMetadataContainer().getWorksheetProperties().
getPropertyValue(Property.baseURI);
if (baseURI == null || baseURI.isEmpty()) {
worksheet.getMetadataContainer().getWorksheetProperties().setPropertyValue(
Property.baseURI, "http://localhost:8080/source/");
}
String prefix = worksheet.getMetadataContainer().getWorksheetProperties().
getPropertyValue(Property.prefix);
if (prefix == null || prefix.isEmpty()) {
worksheet.getMetadataContainer().getWorksheetProperties().setPropertyValue(
Property.prefix, "s");
}
WorksheetProperties props = worksheet.getMetadataContainer().getWorksheetProperties();
try {
final JSONObject propsJson = props.getJSONRepresentation();
return new UpdateContainer(new AbstractUpdate() {
@Override
public void generateJson(String prefix, PrintWriter pw,
VWorkspace vWorkspace) {
JSONObject obj = new JSONObject();
try {
obj.put(JsonKeys.updateType.name(), "ExistingWorksheetProperties");
obj.put(JsonKeys.properties.name(), propsJson);
pw.println(obj.toString());
} catch (JSONException e) {
logger.error("Error occurred while fetching worksheet properties!", e);
}
}
});
} catch (JSONException e) {
logger.error("Error occurred while fetching worksheet properties!", e);
return new UpdateContainer(new ErrorUpdate("Error occurred while fetching " +
"worksheet properties!"));
}
}
@Override
public UpdateContainer undoIt(Workspace workspace) {
return null;
}
}