/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * 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.mso.db.catalog.utils;


import java.util.Comparator;

/**
 * This class can be used to sort object from MavenLikeVersioning type.
 * 
 *  
 *
 */
public class MavenLikeVersioningComparator implements Comparator<MavenLikeVersioning> {
		
	@Override
	public int compare(MavenLikeVersioning o1, MavenLikeVersioning o2) {
		 final int BEFORE = -1;
		 final int EQUAL = 0;
		 final int AFTER = 1;
		 
		 if (o1.isTheSameVersion(o2.getVersion())) {
			 return EQUAL;
		 } else if (o1.isMoreRecentThan(o2.getVersion())) {
			 return AFTER;
		 } else {
			 return BEFORE;
		 }
	}

}