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1   package org.apache.maven.archetype.source;
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.archetype.catalog.ArchetypeCatalog;
23  import org.codehaus.plexus.component.annotations.Component;
24  import org.codehaus.plexus.util.ReaderFactory;
25  
26  import java.io.IOException;
27  import java.io.InputStream;
28  import java.io.Reader;
29  import java.util.Properties;
30  
31  /**
32   * @author Jason van Zyl
33   */
34  @Component( role = ArchetypeDataSource.class, hint = "internal-catalog" )
35  public class InternalCatalogArchetypeDataSource
36      extends CatalogArchetypeDataSource
37  {
38  
39      public ArchetypeCatalog getArchetypeCatalog( Properties properties )
40          throws ArchetypeDataSourceException
41      {
42          try
43          {
44              InputStream in = getClass().getClassLoader().getResourceAsStream( ARCHETYPE_CATALOG_FILENAME );
45              Reader reader = ReaderFactory.newXmlReader( in );
46  
47              return readCatalog( reader );
48          }
49          catch ( IOException e )
50          {
51              throw new ArchetypeDataSourceException( "Error reading archetype catalog.", e );
52          }
53      }
54  }