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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  
20  package org.apache.maven.toolchain;
21  
22  import java.util.HashMap;
23  import java.util.Iterator;
24  import java.util.Map;
25  import org.apache.maven.toolchain.model.ToolchainModel;
26  import org.codehaus.plexus.logging.Logger;
27  
28  /**
29   *
30   * @author mkleint
31   */
32  public abstract class DefaultToolchain
33      implements Toolchain, ToolchainPrivate
34  {
35  
36      private String type;
37  
38      private Map provides = new HashMap /*<String,RequirementMatcher>*/ (  );
39  
40      public static final String KEY_TYPE = "type"; //NOI18N
41      
42      private ToolchainModel model;
43      
44      private Logger logger;
45  
46      protected DefaultToolchain( ToolchainModel model, Logger logger ) 
47      {
48          this.model = model;
49          
50          this.logger = logger;
51      }
52  
53      protected DefaultToolchain( ToolchainModel model, String type, Logger logger )
54      {
55          this( model, logger );
56          this.type = type;
57      }
58  
59      public final String getType( )
60      {
61          return type != null ? type : model.getType();
62      }
63  
64      
65      public final ToolchainModel getModel( ) 
66      {
67          return model;
68      }
69  
70      public final void addProvideToken( String type,
71                                         RequirementMatcher matcher )
72      {
73          provides.put( type, matcher );
74      }
75  
76  
77      public boolean matchesRequirements(Map requirements) {
78          Iterator it = requirements.keySet().iterator();
79          while ( it.hasNext() )
80          {
81              String key = (String) it.next();
82              
83              RequirementMatcher matcher = (RequirementMatcher) provides.get(key);
84              
85              if ( matcher == null )
86              {
87                  getLog().debug( "Toolchain "  + this + " is missing required property: "  + key );
88                  return false;
89              }
90              if ( !matcher.matches( (String) requirements.get(key) ) )
91              {
92                  getLog().debug( "Toolchain "  + this + " doesn't match required property: "  + key );
93                  return false;
94              }
95          }
96          return true;
97      }
98      
99      protected Logger getLog() {
100         return logger;
101     }
102 }