FetchR2RMLUpdate.java

/*******************************************************************************
 * Copyright 2013 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.update;

import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;

import org.json.JSONArray;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import edu.isi.karma.view.VWorkspace;

public class FetchR2RMLUpdate extends AbstractUpdate {

	private static Logger logger = LoggerFactory.getLogger(FetchR2RMLUpdate.class);
	
	private ArrayList<String> model_Names;
	private ArrayList<String> model_Urls;
	
	private enum JsonKeys {
		models
	}
	
	private enum JsonValues {
		FetchDataMiningModelsUpdate
	}

	public FetchR2RMLUpdate(ArrayList<String> names, ArrayList<String> urls)
	{
		this.model_Names = names;
		this.model_Urls = urls;
		
	}
	@Override
	public void generateJson(String prefix, PrintWriter pw, VWorkspace vWorkspace) 
	{
		JSONArray list = new JSONArray();
		try {
			int count = 0;
			while(count < this.model_Names.size()) {
				JSONObject obj = new JSONObject();
				obj.put("name", this.model_Names.get(count));
				obj.put("url",  this.model_Urls.get(count));
				count++;
				list.put(obj);
				
			}
			JSONObject obj = new JSONObject();
			obj.put(GenericJsonKeys.updateType.name(), JsonValues.FetchDataMiningModelsUpdate.name());
			obj.put(JsonKeys.models.name(), list);
			pw.print(obj.toString());
		} catch (Exception e) {
			logger.error("Error generating JSON!", e);
		}
	}
}