1 package org.apache.maven.index.artifact;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.regex.Pattern;
23
24 /**
25 * Utility methods for working with artifact version strings.
26 */
27 public class VersionUtils
28 {
29
30 private static String SNAPSHOT_VERSION = "SNAPSHOT";
31
32 private static final Pattern VERSION_FILE_PATTERN =
33 Pattern.compile(
34 "^(.*)-([0-9]{8}.[0-9]{6})-([0-9]+)$|^([0-9]{8}.[0-9]{6})-([0-9]+)$|^(.*)([0-9]{8}.[0-9]{6})-([0-9]+)$" );
35
36 public static boolean isSnapshot( String version )
37 {
38 return VERSION_FILE_PATTERN.matcher( version ).matches() || version.endsWith( SNAPSHOT_VERSION );
39 }
40 }