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