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1   package org.apache.maven.model.profile.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.ActivationProperty;
24  import org.apache.maven.model.Profile;
25  import org.apache.maven.model.building.ModelProblemCollector;
26  import org.apache.maven.model.building.ModelProblem.Severity;
27  import org.apache.maven.model.building.ModelProblem.Version;
28  import org.apache.maven.model.building.ModelProblemCollectorRequest;
29  import org.apache.maven.model.profile.ProfileActivationContext;
30  import org.codehaus.plexus.component.annotations.Component;
31  import org.codehaus.plexus.util.StringUtils;
32  
33  /**
34   * Determines profile activation based on the existence or value of some execution property.
35   *
36   * @author Benjamin Bentmann
37   * @see ActivationProperty
38   */
39  @Component( role = ProfileActivator.class, hint = "property" )
40  public class PropertyProfileActivator
41      implements ProfileActivator
42  {
43  
44      public boolean isActive( Profile profile, ProfileActivationContext context, ModelProblemCollector problems )
45      {
46          Activation activation = profile.getActivation();
47  
48          if ( activation == null )
49          {
50              return false;
51          }
52  
53          ActivationProperty property = activation.getProperty();
54  
55          if ( property == null )
56          {
57              return false;
58          }
59  
60          String name = property.getName();
61          boolean reverseName = false;
62  
63          if ( name != null && name.startsWith( "!" ) )
64          {
65              reverseName = true;
66              name = name.substring( 1 );
67          }
68  
69          if ( name == null || name.length() <= 0 )
70          {
71              problems.add( new ModelProblemCollectorRequest( Severity.ERROR, Version.BASE )
72                      .setMessage( "The property name is required to activate the profile " + profile.getId() )
73                      .setLocation( property.getLocation( "" ) ) );
74              return false;
75          }
76  
77          String sysValue = context.getUserProperties().get( name );
78          if ( sysValue == null )
79          {
80              sysValue = context.getSystemProperties().get( name );
81          }
82  
83          String propValue = property.getValue();
84          if ( StringUtils.isNotEmpty( propValue ) )
85          {
86              boolean reverseValue = false;
87              if ( propValue.startsWith( "!" ) )
88              {
89                  reverseValue = true;
90                  propValue = propValue.substring( 1 );
91              }
92  
93              // we have a value, so it has to match the system value...
94              boolean result = propValue.equals( sysValue );
95  
96              return reverseValue ? !result : result;
97          }
98          else
99          {
100             boolean result = StringUtils.isNotEmpty( sysValue );
101 
102             return reverseName ? !result : result;
103         }
104     }
105 
106     @Override
107     public boolean presentInConfig( Profile profile, ProfileActivationContext context, ModelProblemCollector problems )
108     {
109         Activation activation = profile.getActivation();
110 
111         if ( activation == null )
112         {
113             return false;
114         }
115 
116         ActivationProperty property = activation.getProperty();
117 
118         if ( property == null )
119         {
120             return false;
121         }
122         return true;
123     }
124 
125 }