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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 java.io.IOException;
23  
24  import org.apache.maven.model.Activation;
25  import org.apache.maven.model.ActivationFile;
26  import org.apache.maven.model.Profile;
27  import org.codehaus.plexus.interpolation.EnvarBasedValueSource;
28  import org.codehaus.plexus.interpolation.InterpolationException;
29  import org.codehaus.plexus.interpolation.MapBasedValueSource;
30  import org.codehaus.plexus.interpolation.RegexBasedInterpolator;
31  import org.codehaus.plexus.logging.LogEnabled;
32  import org.codehaus.plexus.logging.Logger;
33  import org.codehaus.plexus.util.FileUtils;
34  import org.codehaus.plexus.util.StringUtils;
35  
36  public class FileProfileActivator
37      extends DetectedProfileActivator
38      implements LogEnabled
39  {
40      private Logger logger;
41  
42      protected boolean canDetectActivation( Profile profile )
43      {
44          return profile.getActivation() != null && profile.getActivation().getFile() != null;
45      }
46  
47      public boolean isActive( Profile profile )
48      {
49          Activation activation = profile.getActivation();
50  
51          ActivationFile actFile = activation.getFile();
52  
53          if ( actFile != null )
54          {
55              // check if the file exists, if it does then the profile will be active
56              String fileString = actFile.getExists();
57  
58              RegexBasedInterpolator interpolator = new RegexBasedInterpolator();
59              try
60              {
61                  interpolator.addValueSource( new EnvarBasedValueSource() );
62              }
63              catch ( IOException e )
64              {
65                  // ignored
66              }
67              interpolator.addValueSource( new MapBasedValueSource( System.getProperties() ) );
68  
69              try
70              {
71                  if ( StringUtils.isNotEmpty( fileString ) )
72                  {
73                      fileString = StringUtils.replace( interpolator.interpolate( fileString, "" ), "\\", "/" );
74                      return FileUtils.fileExists( fileString );
75                  }
76  
77                  // check if the file is missing, if it is then the profile will be active
78                  fileString = actFile.getMissing();
79  
80                  if ( StringUtils.isNotEmpty( fileString ) )
81                  {
82                      fileString = StringUtils.replace( interpolator.interpolate( fileString, "" ), "\\", "/" );
83                      return !FileUtils.fileExists( fileString );
84                  }
85              }
86              catch ( InterpolationException e )
87              {
88                  if ( logger.isDebugEnabled() )
89                  {
90                      logger.debug( "Failed to interpolate missing file location for profile activator: " + fileString, e );
91                  }
92                  else
93                  {
94                      logger.warn( "Failed to interpolate missing file location for profile activator: " + fileString + ". Run in debug mode (-X) for more information." );
95                  }
96              }
97          }
98  
99          return false;
100     }
101 
102     public void enableLogging( Logger logger )
103     {
104         this.logger = logger;
105     }
106 }