ChangeInternalNodeLinksCommandFactory.java

/*******************************************************************************
 * 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.alignment;

import javax.servlet.http.HttpServletRequest;

import org.json.JSONArray;
import org.json.JSONException;

import edu.isi.karma.controller.command.Command;
import edu.isi.karma.controller.command.CommandFactory;
import edu.isi.karma.controller.command.JSONInputCommandFactory;
import edu.isi.karma.controller.history.HistoryJsonUtil;
import edu.isi.karma.modeling.alignment.AlignmentManager;
import edu.isi.karma.view.VWorkspace;
import edu.isi.karma.webserver.KarmaException;

public class ChangeInternalNodeLinksCommandFactory extends CommandFactory 
	implements JSONInputCommandFactory{

	private enum Arguments {
		initialEdges, alignmentId, vWorksheetId, newEdges
	}
	
	@Override
	public Command createCommand(HttpServletRequest request,
			VWorkspace vWorkspace) {

		return null;
	}

	@Override
	public Command createCommand(JSONArray inputJson, VWorkspace vWorkspace)
			throws JSONException, KarmaException {
		String vWorksheetId = HistoryJsonUtil.getStringValue(Arguments.vWorksheetId.name(), 
				inputJson);
		String alignmentId = AlignmentManager.Instance().constructAlignmentId(
				vWorkspace.getWorkspace().getId(), vWorksheetId);
		JSONArray initialEdges = HistoryJsonUtil.getJSONArrayValue(Arguments.initialEdges.name(), 
				inputJson);
		JSONArray newEdges = HistoryJsonUtil.getJSONArrayValue(Arguments.newEdges.name(), inputJson);
		
		ChangeInternalNodeLinksCommand cmd = new ChangeInternalNodeLinksCommand(getNewId(vWorkspace)
				, vWorksheetId, alignmentId, initialEdges, newEdges);
		cmd.setInputParameterJson(inputJson.toString());
		return cmd;
	}

}