package org.apache.maven.index.artifact;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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.

  */

 import java.util.regex.Pattern;

 /**

  * Utility methods for working with artifact version strings.

  */

 public class VersionUtils

 {

     private static String SNAPSHOT_VERSION = "SNAPSHOT";

     private static final Pattern VERSION_FILE_PATTERN =

         Pattern.compile(

             "^(.*)-([0-9]{8}.[0-9]{6})-([0-9]+)$|^([0-9]{8}.[0-9]{6})-([0-9]+)$|^(.*)([0-9]{8}.[0-9]{6})-([0-9]+)$" );

     public static boolean isSnapshot( String version )

     {

         return VERSION_FILE_PATTERN.matcher( version ).matches() || version.endsWith( SNAPSHOT_VERSION );

     }

 }