AbstractDecisionMaker.java

/**
 * Copyright (c) 2011, SOCIETIES Consortium (WATERFORD INSTITUTE OF TECHNOLOGY (TSSG), HERIOT-WATT UNIVERSITY (HWU), SOLUTA.NET 
 * (SN), GERMAN AEROSPACE CENTRE (Deutsches Zentrum fuer Luft- und Raumfahrt e.V.) (DLR), Zavod za varnostne tehnologije
 * informacijske družbe in elektronsko poslovanje (SETCCE), INSTITUTE OF COMMUNICATION AND COMPUTER SYSTEMS (ICCS), LAKE
 * COMMUNICATIONS (LAKE), INTEL PERFORMANCE LEARNING SOLUTIONS LTD (INTEL), PORTUGAL TELECOM INOVAÇÃO, SA (PTIN), IBM Corp., 
 * INSTITUT TELECOM (ITSUD), AMITEC DIACHYTI EFYIA PLIROFORIKI KAI EPIKINONIES ETERIA PERIORISMENIS EFTHINIS (AMITEC), TELECOM 
 * ITALIA S.p.a.(TI),  TRIALOG (TRIALOG), Stiftelsen SINTEF (SINTEF), NEC EUROPE LTD (NEC))
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
 * conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
 * SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.societies.useragent.decisionmaking;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.concurrent.ExecutionException;

import org.slf4j.LoggerFactory;
import org.societies.api.internal.useragent.conflict.IConflictResolutionManager;
import org.societies.api.internal.useragent.decisionmaking.IDecisionMaker;
import org.societies.api.internal.useragent.feedback.IUserFeedback;
import org.societies.useragent.conflict.*;
import org.societies.api.internal.useragent.model.ExpProposalContent;
import org.societies.api.internal.useragent.model.ExpProposalType;
import org.societies.api.internal.useragent.model.ImpProposalContent;
import org.societies.api.internal.useragent.model.ImpProposalType;
import org.societies.api.personalisation.model.IAction;
import org.societies.api.internal.personalisation.model.IOutcome;
import org.slf4j.*;

public abstract class AbstractDecisionMaker implements IDecisionMaker {
	IConflictResolutionManager manager;
	IUserFeedback feedbackHandler;
	public HashSet<IOutcome> hasBeenChecked=new HashSet<IOutcome>();
	
	private Logger logging = LoggerFactory.getLogger(this.getClass());

	public IConflictResolutionManager getManager() {
		return manager;
	}

	public void setManager(IConflictResolutionManager manager) {
		this.manager = manager;
	}

	public IUserFeedback getFeedbackHandler() {
		return feedbackHandler;
	}

	public void setFeedbackHandler(IUserFeedback feedbackHandler) {
		this.feedbackHandler = feedbackHandler;
	}

	@Override
	public void makeDecision(List<IOutcome> intents, List<IOutcome> preferences) {
		// TODO Auto-generated method stub
		HashSet<IOutcome> conflicts = new HashSet<IOutcome>();
		logging.debug("start resolving DM");
		if (intents.size() == 0) {
			for (IOutcome action : preferences) {
				this.implementIAction(action);
			}
			return;
		}
		if (preferences.size() == 0) {
			for (IOutcome action : intents) {
				this.implementIAction(action);
			}
			return;
		}
		for (IOutcome intent : intents) {
			IOutcome action = intent;
			// unresolved preference ioutcomes
			for (IOutcome preference : preferences) {
				ConflictType conflict = detectConflict(intent, preference);
				if (conflict == ConflictType.PREFERNCE_INTENT_NOT_MATCH) {
					action = manager.resolveConflict(action, preference);
					if (action == null) {
						conflicts.add(preference);
					}
				} else if (conflict == ConflictType.UNKNOWN_CONFLICT) {
					/* handler the unknown work */
				}
			}
			if (conflicts.size() == 0) {// no unresolved conflicts
				logging.debug("no unresolved conflicts");
				this.implementIAction(action);
			} else {
				List<String> options = new ArrayList<String>();
				options.add(intent.toString());
				for (IOutcome conf : conflicts)
					options.add(conf.toString());
				logging.debug("Call Feedback Manager");
				ExpProposalContent epc = new ExpProposalContent(
						"Conflict Detected!",
						options.toArray(new String[options.size()]));
				List<String> reply;
				try {
					reply = feedbackHandler.getExplicitFB(
							ExpProposalType.RADIOLIST, epc).get();
					new DecisionMakingCallback(this, intent, conflicts)
							.handleExpFeedback(reply);
				} catch (Exception e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}// ,
					// new DecisionMakingCallback(this,intent,conflicts));
			}
			conflicts.clear();
		}
		logging.debug("after resolving DM");
	}

	protected boolean getUserFeedback(String content, IAction action) {
		try {
			IOutcome iot = (IOutcome) action;
			if(hasBeenChecked.contains(iot)){
				hasBeenChecked.remove(iot);
				return true;
			}
			if (iot.getConfidenceLevel() > 50) {
				ImpProposalContent ic = new ImpProposalContent(content, 10);
				return feedbackHandler.getImplicitFB(
						ImpProposalType.TIMED_ABORT, ic).get();
			} else {
				ExpProposalContent epc = 
						new ExpProposalContent(content,new String[]{"Yes","No"});
				List<String> result= feedbackHandler.getExplicitFB(
						ExpProposalType.RADIOLIST, epc).get();
				if(result.get(0).equals("Yes"))
					return true;
				else
					return false;
			}
		} catch (Exception e) {
			System.err.println(e);
			return false;
		}
	}

	protected abstract ConflictType detectConflict(IOutcome intent,
			IOutcome prefernce);

	protected abstract void implementIAction(IAction action);
}