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1   package org.apache.maven.rtinfo;
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  /**
23   * Provides information about the current Maven runtime.
24   * 
25   * @since 3.0.2
26   */
27  public interface RuntimeInformation
28  {
29  
30      /**
31       * Retrieves the current Maven version, for example "3.0.2".
32       * 
33       * @return The current Maven version or an empty string if unknown, never {@code null}.
34       */
35      String getMavenVersion();
36  
37      /**
38       * Checks whether the current Maven runtime matches the specified version range. A version range can either use the
39       * usual mathematical syntax "[2.0.10,2.1.0),[3.0,)" or use a single version "2.2.1". The latter is a short form for
40       * "[2.2.1,)", i.e. denotes the minimum version required.
41       * 
42       * @param versionRange The version range to match the current Maven runtime against, must not be {@code null}.
43       * @return {@code true} if the current Maven runtime matches the specified version range, {@code false} otherwise.
44       * @throws IllegalArgumentException If the specified version range is {@code null}, empty or otherwise not a valid
45       *             version specification.
46       */
47      boolean isMavenVersion( String versionRange );
48  
49  }