PPNegotiationPreferenceManager.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.privacytrust.privacyprotection.privacypreferencemanager;

import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import javax.swing.JOptionPane;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.societies.api.context.model.CtxAttributeIdentifier;
import org.societies.api.context.model.CtxIdentifier;
import org.societies.api.identity.Requestor;
import org.societies.api.internal.privacytrust.trust.ITrustBroker;
import org.societies.api.internal.schema.privacytrust.privacyprotection.preferences.PPNPreferenceDetailsBean;
import org.societies.api.privacytrust.privacy.model.PrivacyException;
import org.societies.api.schema.privacytrust.privacy.model.privacypolicy.Action;
import org.societies.api.schema.privacytrust.privacy.model.privacypolicy.Condition;
import org.societies.api.schema.privacytrust.privacy.model.privacypolicy.RequestItem;
import org.societies.api.schema.privacytrust.privacy.model.privacypolicy.RequestPolicy;
import org.societies.api.schema.privacytrust.privacy.model.privacypolicy.Resource;
import org.societies.api.schema.privacytrust.privacy.model.privacypolicy.ResponseItem;
import org.societies.privacytrust.privacyprotection.api.model.privacypreference.IPrivacyOutcome;
import org.societies.privacytrust.privacyprotection.api.model.privacypreference.IPrivacyPreference;
import org.societies.privacytrust.privacyprotection.api.model.privacypreference.IPrivacyPreferenceTreeModel;
import org.societies.privacytrust.privacyprotection.api.model.privacypreference.ppn.PPNPOutcome;
import org.societies.privacytrust.privacyprotection.api.model.privacypreference.ppn.PPNPrivacyPreferenceTreeModel;
import org.societies.privacytrust.privacyprotection.privacypreferencemanager.evaluation.PreferenceEvaluator;
import org.societies.privacytrust.privacyprotection.privacypreferencemanager.evaluation.PrivateContextCache;
import org.societies.privacytrust.privacyprotection.privacypreferencemanager.management.PrivatePreferenceCache;
import org.societies.privacytrust.privacyprotection.privacypreferencemanager.monitoring.PrivacyPreferenceConditionMonitor;

/**
 * @author Eliza
 *
 */
public class PPNegotiationPreferenceManager {

	private PrivatePreferenceCache prefCache;
	private final PrivateContextCache contextCache;
	private Logger logging = LoggerFactory.getLogger(this.getClass());
	private final PrivacyPreferenceConditionMonitor privacyPCM;
	private final ITrustBroker trustBroker;

	public PPNegotiationPreferenceManager(PrivatePreferenceCache prefCache, PrivateContextCache contextCache, PrivacyPreferenceConditionMonitor privacyPCM, ITrustBroker trustBroker){
		this.prefCache = prefCache;
		this.contextCache = contextCache;
		this.privacyPCM = privacyPCM;
		this.trustBroker = trustBroker;



	}

	public HashMap<RequestItem,ResponseItem> evaluatePPNPreferences(RequestPolicy requestPolicy) throws PrivacyException{

		Hashtable<RequestItem, PPNPrivacyPreferenceTreeModel> modelsHashtable = new Hashtable<RequestItem, PPNPrivacyPreferenceTreeModel>();
		List<RequestItem> requestItems = requestPolicy.getRequestItems();
		for (RequestItem item : requestItems){

			
				PPNPreferenceDetailsBean details = new PPNPreferenceDetailsBean();
				details.setRequestor(requestPolicy.getRequestor());
				details.setResource(item.getResource());
				PPNPrivacyPreferenceTreeModel model = this.prefCache.getPPNPreference(details);
				if (model!=null){
					modelsHashtable.put(item, model);
				}
		}

		PreferenceEvaluator ppE = new PreferenceEvaluator(contextCache, trustBroker);
		return ppE.evaluatePPNPreferences(modelsHashtable);
		/*		HashMap<RequestItem, List<PPNPOutcome>> evaluatedPPNPreferences = ppE.evaluatePPNPreferences(modelsHashtable);

		HashMap<RequestItem,List<ResponseItem>> toReturn = new HashMap<RequestItem, List<ResponseItem>>();

		Set<RequestItem> keySet = evaluatedPPNPreferences.keySet();
		Iterator<RequestItem> it = evaluatedPPNPreferences.keySet().iterator();
		while(it.hasNext()){
			List<ResponseItem> responseItems = new ArrayList<ResponseItem>();
			RequestItem nextItem = it.next();
			List<PPNPOutcome> outcomes = evaluatedPPNPreferences.get(nextItem);
			for (PPNPOutcome outcome: outcomes){
				ResponseItem respItem = new ResponseItem();
				respItem.setDecision(outcome.getDecision());

			}
		}*/

	}

	/**
	 * new methods;
	 */

	public boolean deletePPNPreference(PPNPreferenceDetailsBean details) {
		return 	this.prefCache.removePPNPreference(details);


	}

	public PPNPrivacyPreferenceTreeModel getPPNPreference(
			PPNPreferenceDetailsBean details) {
		return this.prefCache.getPPNPreference(details);
	}

	public List<PPNPreferenceDetailsBean> getPPNPreferenceDetails() {
		return this.prefCache.getPPNPreferenceDetails();
	}

	public boolean storePPNPreference(PPNPreferenceDetailsBean details,
			PPNPrivacyPreferenceTreeModel model) throws PrivacyException {

		if (model.getDetails().equals(details)){
			this.logging.debug("Request to add preference :\n"+details.toString());

			if (this.prefCache.addPPNPreference(details, model)){
				return true;
			}else{
				throw new PrivacyException("Error storing PPN preference");

			}
		}	

		throw new PrivacyException("PPNPreferenceDetailsBean parameter did not match PPNPrivacyPreferenceTreeModel.getDetails()");		


	}
}