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JcrRepositorySession xref
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1   package org.apache.archiva.metadata.repository.jcr;
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.archiva.metadata.repository.MetadataResolver;
23  import org.apache.archiva.metadata.repository.MetadataSessionException;
24  import org.apache.archiva.metadata.repository.RepositorySession;
25  import org.slf4j.Logger;
26  import org.slf4j.LoggerFactory;
27  
28  import javax.jcr.RepositoryException;
29  import javax.jcr.Session;
30  
31  /**
32   *
33   * Session implementation for a JCR repository.
34   *
35   * @author Martin Stockhammer <martin_s@apache.org>
36   */
37  public class JcrRepositorySession extends RepositorySession implements AutoCloseable
38  {
39  
40      private static final Logger log = LoggerFactory.getLogger( JcrRepositorySession.class );
41  
42      private Session jcrSession;
43      private JcrMetadataRepository repository;
44  
45      public JcrRepositorySession( JcrMetadataRepository metadataRepository, MetadataResolver resolver) throws RepositoryException
46      {
47          super( metadataRepository, resolver );
48          this.repository = metadataRepository;
49          this.jcrSession = metadataRepository.login();
50      }
51  
52      public Session getJcrSession() {
53          return jcrSession;
54      }
55  
56      public JcrMetadataRepository getJcrRepository() {
57          return repository;
58      }
59  
60      @Override
61      public void close( )
62      {
63          super.close( );
64          jcrSession.logout();
65      }
66  
67      @Override
68      protected boolean isDirty( )
69      {
70          if (super.isDirty()) {
71              return true;
72          }
73          try
74          {
75              return jcrSession.hasPendingChanges( );
76          }
77          catch ( RepositoryException e )
78          {
79              log.error( "Could not check pending changes {}", e.getMessage( ) );
80              return true;
81          }
82      }
83  
84      @Override
85      public void save( ) throws MetadataSessionException
86      {
87          super.save( );
88          try
89          {
90              jcrSession.save();
91          }
92          catch ( RepositoryException e )
93          {
94              throw new MetadataSessionException( e.getMessage( ), e );
95          }
96      }
97  
98      @Override
99      public void revert( ) throws MetadataSessionException
100     {
101         super.revert( );
102         try
103         {
104             jcrSession.refresh( false );
105         }
106         catch ( RepositoryException e )
107         {
108             throw new MetadataSessionException( e.getMessage( ), e );
109         }
110     }
111 
112     @Override
113     public void refresh() throws MetadataSessionException {
114         try {
115             jcrSession.refresh(true);
116         } catch (RepositoryException e) {
117             throw new MetadataSessionException(e.getMessage(), e);
118         }
119     }
120 
121     @Override
122     public void refreshAndDiscard() throws MetadataSessionException {
123         try {
124             jcrSession.refresh(false);
125         } catch (RepositoryException e) {
126             throw new MetadataSessionException(e.getMessage(), e);
127         }
128     }
129 }