View Javadoc
1   package org.eclipse.aether.internal.impl;
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.eclipse.aether.spi.connector.checksum.ChecksumPolicy;
23  import org.eclipse.aether.transfer.ChecksumFailureException;
24  import org.eclipse.aether.transfer.TransferResource;
25  import org.slf4j.Logger;
26  import org.slf4j.LoggerFactory;
27  
28  abstract class AbstractChecksumPolicy
29      implements ChecksumPolicy
30  {
31  
32      protected final Logger logger = LoggerFactory.getLogger( getClass() );
33  
34      protected final TransferResource resource;
35  
36      protected AbstractChecksumPolicy( TransferResource resource )
37      {
38          this.resource = resource;
39      }
40  
41      public boolean onChecksumMatch( String algorithm, int kind )
42      {
43          return true;
44      }
45  
46      public void onChecksumMismatch( String algorithm, int kind, ChecksumFailureException exception )
47          throws ChecksumFailureException
48      {
49          if ( ( kind & KIND_UNOFFICIAL ) == 0 )
50          {
51              throw exception;
52          }
53      }
54  
55      public void onChecksumError( String algorithm, int kind, ChecksumFailureException exception )
56          throws ChecksumFailureException
57      {
58          logger.debug( "Could not validate {} checksum for {}", algorithm, resource.getResourceName(), exception );
59      }
60  
61      public void onNoMoreChecksums()
62          throws ChecksumFailureException
63      {
64          throw new ChecksumFailureException( "Checksum validation failed, no checksums available" );
65      }
66  
67      public void onTransferRetry()
68      {
69      }
70  
71  }