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1   package org.apache.maven.index.context;
2   
3   import java.io.IOException;
4   
5   /*
6    * Licensed to the Apache Software Foundation (ASF) under one
7    * or more contributor license agreements.  See the NOTICE file
8    * distributed with this work for additional information
9    * regarding copyright ownership.  The ASF licenses this file
10   * to you under the Apache License, Version 2.0 (the
11   * "License"); you may not use this file except in compliance
12   * with the License.  You may obtain a copy of the License at
13   *
14   *   http://www.apache.org/licenses/LICENSE-2.0    
15   *
16   * Unless required by applicable law or agreed to in writing,
17   * software distributed under the License is distributed on an
18   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
19   * KIND, either express or implied.  See the License for the
20   * specific language governing permissions and limitations
21   * under the License.
22   */
23  
24  /**
25   * Thrown when a user tries to create a NexusInder IndexingContext over and existing Lucene index, and there is a
26   * mismatch. The reason for mismatch may be multiple: non-NexusIndexer Lucene index (basically missing the descriptor
27   * document), index version is wrong or unknown, repositoryId from context and descriptor document does not matches,
28   * etc. This exception is not thrown in cases when "reclaim" is done, as in those cases, even if an unknown index is
29   * found, descriptor will be forcefully added with current context information, potentially replacing the existing
30   * descriptor, if any.
31   * 
32   * @author Tamas Cservenak
33   * @since 5.1.0
34   */
35  public class ExistingLuceneIndexMismatchException
36      extends IOException
37  {
38      private static final long serialVersionUID = -6587046761831878804L;
39  
40      public ExistingLuceneIndexMismatchException( String message )
41      {
42          super( message );
43      }
44  }