ListedCond.java

/**
 * eAdventure (formerly <e-Adventure> and <e-Game>) is a research project of the
 *    <e-UCM> research group.
 *
 *    Copyright 2005-2010 <e-UCM> research group.
 *
 *    You can access a list of all the contributors to eAdventure at:
 *          http://e-adventure.e-ucm.es/contributors
 *
 *    <e-UCM> is a research group of the Department of Software Engineering
 *          and Artificial Intelligence at the Complutense University of Madrid
 *          (School of Computer Science).
 *
 *          C Profesor Jose Garcia Santesmases sn,
 *          28040 Madrid (Madrid), Spain.
 *
 *          For more info please visit:  <http://e-adventure.e-ucm.es> or
 *          <http://www.e-ucm.es>
 *
 * ****************************************************************************
 *
 *  This file is part of eAdventure, version 2.0
 *
 *      eAdventure is free software: you can redistribute it and/or modify
 *      it under the terms of the GNU Lesser General Public License as published by
 *      the Free Software Foundation, either version 3 of the License, or
 *      (at your option) any later version.
 *
 *      eAdventure 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 Lesser General Public License for more details.
 *
 *      You should have received a copy of the GNU Lesser General Public License
 *      along with eAdventure.  If not, see <http://www.gnu.org/licenses/>.
 */

package es.eucm.ead.model.elements.conditions;

import es.eucm.ead.model.elements.conditions.enums.ConditionOperator;
import es.eucm.ead.model.elements.extra.EAdList;
import es.eucm.ead.model.elements.operations.ElementField;
import es.eucm.ead.model.interfaces.Param;

import java.util.Iterator;
import java.util.List;

public abstract class ListedCond extends Condition {

	@Param
	private EAdList<Condition> conditions;

	@Param
	private ConditionOperator operator;

	public ListedCond() {
		this(null);
	}

	public ListedCond(ConditionOperator operator, EAdList<Condition> conditions) {
		this.operator = operator;
		this.conditions = conditions;
	}

	public ListedCond(ConditionOperator operator) {
		this(operator, (Condition) null);
	}

	public ListedCond(ConditionOperator operator, Condition... conditions) {
		super();
		this.conditions = new EAdList<Condition>();
		for (Condition c : conditions) {
			if (c != null) {
				this.conditions.add(c);
			}
		}
		this.operator = operator;
	}

	public ConditionOperator getOperator() {
		return operator;
	}

	public void addCondition(Condition condition) {
		conditions.add(condition);
	}

	public void replaceCondition(Condition oldCondition, Condition newCondition) {
		if (conditions.remove(oldCondition))
			conditions.add(newCondition);
	}

	public boolean removeCondition(Condition condition) {
		if (conditions.size() == 1)
			return false;
		else
			return (conditions.remove(condition));
	}

	public Iterator<Condition> getConditionsIterator() {
		return conditions.iterator();
	}

	public EAdList<Condition> getConditions() {
		return conditions;
	}

	public abstract EmptyCond getNullOperator();

	@Override
	public String toString() {
		if (conditions.isEmpty()) {
			return "Empty list";
		} else {
			StringBuilder value = new StringBuilder("(");
			value.append(conditions.get(0));
			for (int i = 1; i < conditions.size(); i++) {
				value.append(" ").append(operator).append(" ").append(
						conditions.get(i));
			}
			return value.append(")").toString();
		}
	}

	public void setConditions(EAdList<Condition> conditions) {
		this.conditions = conditions;
	}

	public void setOperator(ConditionOperator operator) {
		this.operator = operator;
	}

	public void extractFields(List<ElementField> fields) {
		for (Condition c : conditions) {
			c.extractFields(fields);
		}
	}
}