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FSTPostingsFormat.cs
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FSTPostingsFormat.cs
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namespace Lucene.Net.Codecs.Memory
{
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using Lucene41PostingsWriter = Lucene41.Lucene41PostingsWriter;
using Lucene41PostingsReader = Lucene41.Lucene41PostingsReader;
using SegmentReadState = Index.SegmentReadState;
using SegmentWriteState = Index.SegmentWriteState;
using IOUtils = Util.IOUtils;
/// <summary>
/// FST term dict + Lucene41PBF
/// </summary>
[PostingsFormatName("FST41")] // LUCENENET specific - using PostingsFormatName attribute to ensure the default name passed from subclasses is the same as this class name
public sealed class FSTPostingsFormat : PostingsFormat
{
public FSTPostingsFormat()
: base()
{
}
public override string ToString()
{
return Name;
}
public override FieldsConsumer FieldsConsumer(SegmentWriteState state)
{
PostingsWriterBase postingsWriter = new Lucene41PostingsWriter(state);
bool success = false;
try
{
FieldsConsumer ret = new FSTTermsWriter(state, postingsWriter);
success = true;
return ret;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(postingsWriter);
}
}
}
public override FieldsProducer FieldsProducer(SegmentReadState state)
{
PostingsReaderBase postingsReader = new Lucene41PostingsReader(state.Directory, state.FieldInfos,
state.SegmentInfo, state.Context, state.SegmentSuffix);
bool success = false;
try
{
FieldsProducer ret = new FSTTermsReader(state, postingsReader);
success = true;
return ret;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(postingsReader);
}
}
}
}
}