pstlab / KOaLaR

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.apache.jena.rdf.model.Model;

import org.apache.jena.rdf.model.Resource;

import it.cnr.istc.pst.cognition.koala.reasoner.environment.EnvironmentReasoner;

import it.cnr.istc.pst.cognition.koala.reasoner.environment.parser.xml.Element;

import it.cnr.istc.pst.cognition.koala.reasoner.environment.parser.xml.Sensor;

import it.cnr.istc.pst.cognition.koala.reasoner.environment.parser.xml.XMLEnvironmentConfigurationParser;

/**

 * 

 * @author anacleto

 *

 */

public class OWLKoalaEnvironmentReasoner extends EnvironmentReasoner 

{

	/**

	 * 

	 * @param ontologyFilePath

	 * @param ruleFilePath

	 */

	public OWLKoalaEnvironmentReasoner(String ontologyFilePath, String ruleFilePath) {

		// create a knowledge-base instance

		this.kb = new OWLKoalaModel(ontologyFilePath, ruleFilePath);

	}

	/**

	 * 

	 * @return

	 */

	@Override

	public Model getModel() {

		// get current knowledge base

		return this.kb.getModel();

	}

	/**

	 * Setup the knowledge-based by reading the XML configuration file of the environment

	 */

	public void init(String envConfigFilePath) 

	{

		try

		{

			// resource index

			Map<Element, Resource> index = new HashMap<Element, Resource>();

			// get XML configuration parser

			XMLEnvironmentConfigurationParser parser = new XMLEnvironmentConfigurationParser(envConfigFilePath);

			// get the list of elements

			List<Element> elements = parser.getElements();

			// check room elements

			for (Element element : elements)

			{

				// create room individual

				Resource resource = this.doCreateElementIndividual(element);

				// index element

				index.put(element, resource);

			}

			// assert structure information

			for (Element element : elements) 

			{

				// check part of 

				if (element.getPartOf() != null)

				{

					// get parent resource

					Resource rParent = index.get(element.getPartOf());

					Resource rChild = index.get(element);

					// locate object into the room

					this.doLocateObjectIntoRoom(rChild, rParent);

				}

			}

			// get list of sensors

			List<Sensor> sensors = parser.getSensors();

			for (Sensor sensor : sensors)

			{

				// create sensor individual

				Resource resource = this.doCreateSensorIndividual(sensor);

				// get sensor target

				Resource target = index.get(sensor.getTarget());

				// install sensor on object

				this.doInstallSensorOnElement(resource, target);

			}

		}

		catch (Exception ex) {

		}

	}

	/**

	 * 

	 * @param room

	 * @return

	 * @throws Exception

	 */

	private Resource doCreateElementIndividual(Element element) 

			throws Exception

	{

		// get room classification

		String classURI = element.getType();

		// create individual

		Resource resource = this.kb.createIndividual(classURI);

		// assert data property

		this.kb.assertDataProperty(resource.getURI(), OWLKoalaNameSpace.KOALA + "hasId", new Long(element.getId()));

		// create space region to model spatial information of the room

		Resource region = this.kb.createIndividual(OWLKoalaNameSpace.DUL + "SpaceRegion");

		// assert property

		this.kb.assertProperty(

				resource.getURI(), 

				OWLKoalaNameSpace.DUL + "hasRegion", 

				region.getURI());

		// get created individual

		return resource;

	}

	/**

	 * 

	 * @param sensor

	 * @return

	 * @throws Exception

	 */

	/**

	 * 

	 * @param object

	 * @param room

	 * @throws Exception

	 */

	private void doLocateObjectIntoRoom(Resource object, Resource room) 

			throws Exception

	{

		// simply assert property - use DUL:hasPart for transitivity, DUL:hasComponent otherwise

		this.kb.assertProperty(room.getURI(), OWLKoalaNameSpace.DUL + "hasComponent", object.getURI());

	}

	/**

	 * 

	 * @param sensor

	 * @param element

	 * @throws Exception

	 */

	private void doInstallSensorOnElement(Resource sensor, Resource element) 

			throws Exception

	{

		// create a platform form the object 

		Resource platform = this.kb.createIndividual(OWLKoalaNameSpace.SSN + "Platform");

		// associate the platform to the holding element/object of the environment

		this.kb.assertProperty(element.getURI(), OWLKoalaNameSpace.DUL + "hasLocation", platform.getURI());

		// deploy sensor on platform

		Resource deployment = this.kb.createIndividual(OWLKoalaNameSpace.SSN + "Deployment");

		// assert related statements

		this.kb.assertProperty(sensor.getURI(), OWLKoalaNameSpace.SSN + "hasDeployment", deployment.getURI());

		this.kb.assertProperty(deployment.getURI(), OWLKoalaNameSpace.SSN + "deployedOnPlatform", platform.getURI());

	}

//	/**

//	 * 

//	 * @param args

//	 */

//	public static void main(String[] args) 

//	{

//		try

//		{

//			// create knowledge manager

//			OWLEnvironmentReasoner km = new OWLEnvironmentReasoner(

//					"etc/ontology/koala_v1.0.owl",

//					"etc/ontology/feature_extraction_v1.0.rules");

//			

//			// initialize reasoner

//			km.init("etc/environment/house_config.xml");

//			

//			

//			

//			System.out.println("-----------------------------------------------------------------------------------------");

//			km.kb.listStatements(OWLNameSpace.SSN + "deployedOnPlatform");

//			System.out.println("-----------------------------------------------------------------------------------------");

//			km.kb.listStatements(OWLNameSpace.DUL + "hasComponent");

//			System.out.println("-----------------------------------------------------------------------------------------");

//			km.kb.listStatements(OWLNameSpace.KOALA + "hasDiagnosis");

//			// check detected features of interest

//			System.out.println("\n-------------------------------------------------------------------------------------------------\n"

//					+ "\tList of detected observable features of the environment\n"

//					+ "-------------------------------------------------------------------------------------------------\n");

//			

//			// list detected observable features

//			km.kb.listIndividualsOfClass(OWLNameSpace.KOALA + "ObservableFeature");

//			System.out.println("|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||");

//			km.kb.listStatements(OWLNameSpace.KOALA + "hasObservableFeature");

//			

//			System.out.println("#######################################################################################################");

//			// list properties that can be observed through features

//			km.kb.listStatements(OWLNameSpace.KOALA + "hasObservableProperty");

//		}

//		catch (Exception ex) {

//			System.err.println(ex.getMessage());

//		}

//	}

}