GetMyThings.java

package kr.ac.kaist.resl.lilliput.rest;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import kr.ac.kaist.resl.lilliput.ac.AccessController;
import kr.ac.kaist.resl.lilliput.ac.AccessibilityPair;

import org.json.JSONArray;
import org.json.JSONObject;
import org.restlet.ext.json.JsonRepresentation;
import org.restlet.resource.Get;
import org.restlet.resource.ServerResource;

import edu.stanford.smi.protege.model.Project;
import edu.stanford.smi.protege.server.RemoteProjectManager;
import edu.stanford.smi.protegex.owl.model.OWLModel;
import edu.stanford.smi.protegex.owl.model.OWLNamedClass;
import edu.stanford.smi.protegex.owl.model.OWLObjectProperty;
import edu.stanford.smi.protegex.owl.model.RDFIndividual;

public class GetMyThings extends ServerResource {
	@Get("json")
	public JsonRepresentation toJson() {
		try
		{
			String epc = (String)getRequest().getAttributes().get("uid");
			if( epc.contains("sgln") != true )
			{
				return null;
			}
			//Save Space to Ontology if it is not saved
		    RemoteProjectManager rpm = RemoteProjectManager.getInstance();
			Project p = rpm.getProject("localhost:5100", "Lilliput", "1234", "IoTSocialGraph", true);
			OWLModel owlModel = (OWLModel)p.getKnowledgeBase();
			@SuppressWarnings("unused")
			OWLNamedClass humanClass = owlModel.getOWLNamedClass("Human");
			@SuppressWarnings("unused")
			OWLNamedClass indoorSpaceClass = owlModel.getOWLNamedClass("IndoorSpace");
			RDFIndividual spaceInd;
			List<AccessibilityPair> acPair = AccessController.getAccessibilityList(owlModel, epc);
			JSONArray resultArray = new JSONArray();
			JSONObject resultObject;
			spaceInd = owlModel.getRDFIndividual(epc);
			
			OWLObjectProperty contain = owlModel.getOWLObjectProperty("contain"); 
			
			@SuppressWarnings("rawtypes")
			Collection col = spaceInd.getPropertyValues(contain);
			@SuppressWarnings("rawtypes")
			Iterator iter = col.iterator();
			while( iter.hasNext())
			{
				RDFIndividual containInd = (RDFIndividual)iter.next();
				String destEPC = containInd.getBrowserText();
				if( !AccessController.isAccessible(acPair, epc, destEPC))
				{
					continue;
				}					
				if( destEPC.contains("gid") == true )
				{
					resultObject = new JSONObject();
					resultObject.put("epc", destEPC);
					resultArray.put(resultObject);
				}
			}
			p.dispose();
			JsonRepresentation representation = new JsonRepresentation(resultArray);
			return representation;
		}catch( Exception e)
		{
			e.printStackTrace();
			return null;
		}	
	}
}