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1   package org.apache.maven.profiles.activation;
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 org.apache.maven.model.Activation;
23  import org.apache.maven.model.Profile;
24  import org.codehaus.plexus.util.StringUtils;
25  
26  public class JdkPrefixProfileActivator
27      extends DetectedProfileActivator
28  {
29      private static final String JDK_VERSION = System.getProperty( "java.version" );
30  
31      public boolean isActive( Profile profile )
32      {
33          Activation activation = profile.getActivation();
34  
35          String jdk = activation.getJdk();
36          
37          boolean reverse = false;
38          
39          if ( jdk.startsWith( "!" ) )
40          {
41              reverse = true;
42              jdk = jdk.substring( 1 );
43          }
44  
45          // null case is covered by canDetermineActivation(), so we can do a straight startsWith() here.
46          boolean result = JDK_VERSION.startsWith( jdk );
47          
48          if ( reverse )
49          {
50              return !result;
51          }
52          else
53          {
54              return result;
55          }
56      }
57  
58      protected boolean canDetectActivation( Profile profile )
59      {
60          return profile.getActivation() != null && StringUtils.isNotEmpty( profile.getActivation().getJdk() );
61      }
62  
63  }