ContextSnapshot.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.merging;

import java.util.ArrayList;
import java.util.List;

public class ContextSnapshot {

	List<SingleContextAttributeSnapshot> snapshot;
	
	public ContextSnapshot(){
		snapshot = new ArrayList<SingleContextAttributeSnapshot>();
	}
	
	
	public void addSnapshot(SingleContextAttributeSnapshot scas){
		if (containsSnapshot(scas)){
			return;
		}else{
			snapshot.add(scas);
		}
	}
	
	public boolean containsSnapshot(SingleContextAttributeSnapshot scas){
		for (SingleContextAttributeSnapshot s : snapshot){
			if (s.getId().equals(scas.getId())){
				return true;
			}
		}
		return false;
	}
	
	public boolean equalsSnapshot(SingleContextAttributeSnapshot scas){
		for (SingleContextAttributeSnapshot s: snapshot){
			if ((s.getId().equals(scas.getId())) && (s.getValue().equalsIgnoreCase(scas.getValue()))){
				return true;
			}
		}
		return false;
	}
	public void removeSnapshot(SingleContextAttributeSnapshot scas){
		if (containsSnapshot(scas)){
			for (SingleContextAttributeSnapshot s : snapshot){
				if (s.getId().equals(scas.getId())){
					snapshot.remove(s);
					return;
				}
			}
		}
	}
	
	public List<SingleContextAttributeSnapshot> getList(){
		return this.snapshot;
	}
	
	
	public List<SingleContextAttributeSnapshot> getDiff(ContextSnapshot s){
		List<SingleContextAttributeSnapshot> diff = new ArrayList<SingleContextAttributeSnapshot>();
		List<SingleContextAttributeSnapshot> fullList = getList();
		
		for (SingleContextAttributeSnapshot single : fullList){
			if (!s.equalsSnapshot(single)){
				diff.add(single);
			}
		}
		
		List<SingleContextAttributeSnapshot> sFullList = s.getList();
		
		for (SingleContextAttributeSnapshot single : sFullList){
			if (!equalsSnapshot(single)){
				diff.add(single);
			}
		}
		return diff;
	}
	
	public List<SingleContextAttributeSnapshot> getMatches(ContextSnapshot s){
		List<SingleContextAttributeSnapshot> matches = new ArrayList<SingleContextAttributeSnapshot>();
		
		List<SingleContextAttributeSnapshot> fullList = getList();
		
		for (SingleContextAttributeSnapshot single: fullList){
			if (s.equalsSnapshot(single)){
				matches.add(single);
			}
		}
		return matches;
	}
}