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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.sdc.be.datatypes.elements;

import java.io.Serializable;
import java.util.List;
import org.codehaus.jackson.annotate.JsonIgnore;
import org.openecomp.sdc.be.datatypes.tosca.ToscaDataDefinition;

public class PropertyRule extends ToscaDataDefinition implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = -3357933382124599996L;

	public static String FORCE_ALL = "FORCE_ALL";
	public static String ALL = "ALL";
	public static String RULE_ANY_MATCH = ".+";

	List<String> rule;
	String value;

	public PropertyRule() {
		super();
	}

	public PropertyRule(List<String> rule, String value) {
		super();
		this.rule = rule;
		this.value = value;
	}

	public List<String> getRule() {
		return rule;
	}

	public void setRule(List<String> rule) {
		this.rule = rule;
	}

	public String getValue() {
		return value;
	}

	public void setValue(String value) {
		this.value = value;
	}

	@JsonIgnore
	public String getFirstToken() {
		return getToken(1);
	}

	public String getToken(int tokenNumber) {

		int index = tokenNumber - 1;
		if (rule == null || index >= rule.size() || index < 0) {
			return null;
		}

		return rule.get(index);
	}

	@JsonIgnore
	public int getRuleSize() {
		if (rule == null) {
			return 0;
		}
		return rule.size();
	}

	@Override
	public String toString() {
		return "PropertyRule [rule=" + rule + ", value=" + value + "]";
	}

	public boolean compareRule(PropertyRule comparedPropertyRule) {

		if (comparedPropertyRule == null) {
			return false;
		}

		List<String> comparedRule = comparedPropertyRule.getRule();
		if (rule == null && comparedRule == null) {
			return true;
		}

		if (rule != null && comparedRule != null) {
			if (rule.size() != comparedRule.size()) {
				return false;
			} else {
				int size = rule.size();
				boolean isEqual = true;
				for (int i = 0; i < size; i++) {
					String item = rule.get(i);
					String comparedItem = comparedRule.get(i);
					if (item == null || false == item.equals(comparedItem)) {
						isEqual = false;
						break;
					}
				}
				return isEqual;
			}
		} else {
			return false;
		}

	}

	public void replaceFirstToken(String token) {

		if (rule != null && rule.size() > 0) {
			rule.set(0, token);
		}

	}

}