View Javadoc
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  
23  import java.io.File;
24  import java.io.IOException;
25  import java.io.Reader;
26  import java.io.Writer;
27  
28  import org.apache.maven.archetype.catalog.ArchetypeCatalog;
29  import org.apache.maven.archetype.catalog.io.xpp3.ArchetypeCatalogXpp3Reader;
30  import org.apache.maven.archetype.catalog.io.xpp3.ArchetypeCatalogXpp3Writer;
31  import org.codehaus.plexus.logging.AbstractLogEnabled;
32  import org.codehaus.plexus.util.WriterFactory;
33  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
34  
35  /**
36   * @author Jason van Zyl
37   */
38  public abstract  class CatalogArchetypeDataSource
39      extends AbstractLogEnabled
40      implements ArchetypeDataSource
41  {
42      public static final String ARCHETYPE_CATALOG_PROPERTY = "file";
43  
44      protected void writeLocalCatalog( ArchetypeCatalog catalog, File catalogFile )
45          throws ArchetypeDataSourceException
46      {
47          try ( Writer writer = WriterFactory.newXmlWriter( catalogFile ) )
48          {
49              ArchetypeCatalogXpp3Writer catalogWriter = new ArchetypeCatalogXpp3Writer();
50  
51              catalogWriter.write( writer, catalog );
52          }
53          catch ( IOException e )
54          {
55              throw new ArchetypeDataSourceException( "Error writing archetype catalog.", e );
56          }
57      }
58  
59      protected ArchetypeCatalog readCatalog( Reader reader )
60          throws ArchetypeDataSourceException
61      {
62          try ( Reader catReader = reader )
63          {
64              ArchetypeCatalogXpp3Reader catalogReader = new ArchetypeCatalogXpp3Reader();
65  
66              return catalogReader.read( catReader );
67          }
68          catch ( IOException e )
69          {
70              throw new ArchetypeDataSourceException( "Error reading archetype catalog.", e );
71          }
72          catch ( XmlPullParserException e )
73          {
74              throw new ArchetypeDataSourceException( "Error parsing archetype catalog.", e );
75          }
76      }
77  }