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1   package org.apache.maven.index.context;
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 java.io.IOException;
23  
24  import org.apache.lucene.analysis.Analyzer;
25  import org.apache.lucene.index.CorruptIndexException;
26  import org.apache.lucene.index.IndexWriter;
27  import org.apache.lucene.index.IndexWriterConfig;
28  import org.apache.lucene.index.SerialMergeScheduler;
29  import org.apache.lucene.store.Directory;
30  import org.apache.lucene.store.LockObtainFailedException;
31  import org.apache.lucene.util.Version;
32  
33  /**
34   * An extension of <a
35   * href="http://lucene.apache.org/java/2_4_0/api/core/org/apache/lucene/index/IndexWriter.html">Lucene IndexWriter</a>
36   * to allow to track if writer is closed
37   */
38  public class NexusIndexWriter
39      extends IndexWriter
40  {
41      @Deprecated
42      public NexusIndexWriter( final Directory directory, final Analyzer analyzer, boolean create )
43          throws CorruptIndexException, LockObtainFailedException, IOException
44      {
45          super( directory, analyzer, create, MaxFieldLength.LIMITED );
46  
47          // setSimilarity( new NexusSimilarity() );
48      }
49  
50      public NexusIndexWriter( final Directory directory, final IndexWriterConfig config )
51          throws CorruptIndexException, LockObtainFailedException, IOException
52      {
53          super( directory, config );
54      }
55  
56      // ==
57  
58      public static IndexWriterConfig defaultConfig()
59      {
60          final IndexWriterConfig config = new IndexWriterConfig( Version.LUCENE_36, new NexusAnalyzer() );
61          // default open mode is CreateOrAppend which suits us
62          config.setRAMBufferSizeMB( 2.0 ); // old default
63          config.setMergeScheduler( new SerialMergeScheduler() ); // merging serially
64          return config;
65      }
66  }