/*
 * Copyright (c) 2005-2010 KOM – Multimedia Communications Lab
 *
 * This file is part of PeerfactSim.KOM.
 *
 * PeerfactSim.KOM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * PeerfactSim.KOM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with PeerfactSim.KOM.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package de.tud.kom.p2psim.impl.vehicular.caching.decision;

import java.util.List;
import java.util.Map;

import de.tudarmstadt.maki.simonstrator.api.component.transition.TransferState;
import de.tudarmstadt.maki.simonstrator.api.component.vehicular.caching.decision.AbstractCacheDecisionStrategy;
import de.tudarmstadt.maki.simonstrator.api.component.vehicular.caching.decision.CacheDecisionStrategy;
import de.tudarmstadt.maki.simonstrator.api.component.vehicular.caching.decision.CacheDecisionStrategyParameters;
import de.tudarmstadt.maki.simonstrator.api.component.vehicular.information.PointInformation;

public class NewestCacheDecisionStrategy extends AbstractCacheDecisionStrategy implements CacheDecisionStrategy {

	private Map<CacheDecisionStrategyParameters, String> _params;

	@TransferState(value = { "Params" })
	public NewestCacheDecisionStrategy(Map<CacheDecisionStrategyParameters, String> pParams) {
		_params = pParams;
	}

	@Override
	public <T extends PointInformation> T decideOnCorrectInformation(
			List<T> pSimilarPointInformation) {
		long newestDetectionTime = 0;
		T chosenInformation = null;
		for (T t : pSimilarPointInformation) {
			if (t.getDetectionDate() > newestDetectionTime) {
				newestDetectionTime = t.getDetectionDate();
				chosenInformation = t;
			}
		}
		return chosenInformation;
	}

	public Map<CacheDecisionStrategyParameters, String> getParams() {
		return _params;
	}

	@Override
	public NewestCacheDecisionStrategy clone() {
		return new NewestCacheDecisionStrategy(_params);
	}

}
