Example usage for org.apache.lucene.codecs.compressing CompressionMode newCompressor

Introduction

In this page you can find the example usage for org.apache.lucene.codecs.compressing CompressionMode newCompressor.

Prototype

public abstract Compressor newCompressor();

Source Link

Document

Create a new Compressor instance.

Usage

From source file:com.lucure.core.codec.CompressingStoredFieldsWriter.java

License:Apache License

/** Sole constructor. */
public CompressingStoredFieldsWriter(Directory directory, SegmentInfo si, String segmentSuffix,
        IOContext context, String formatName, CompressionMode compressionMode, int chunkSize)
        throws IOException {
    assert directory != null;
    this.directory = directory;
    this.segment = si.name;
    this.segmentSuffix = segmentSuffix;
    this.compressionMode = compressionMode;
    this.compressor = compressionMode.newCompressor();
    this.chunkSize = chunkSize;
    this.docBase = 0;
    this.bufferedDocs = new GrowableByteArrayDataOutput(chunkSize);
    this.numStoredFields = new int[16];
    this.endOffsets = new int[16];
    this.numBufferedDocs = 0;

    boolean success = false;
    IndexOutput indexStream = directory.createOutput(
            IndexFileNames.segmentFileName(segment, segmentSuffix, FIELDS_INDEX_EXTENSION), context);
    try {/*from w w w. j a  v a2s  . c o m*/
        fieldsStream = directory.createOutput(
                IndexFileNames.segmentFileName(segment, segmentSuffix, FIELDS_EXTENSION), context);

        final String codecNameIdx = formatName + CODEC_SFX_IDX;
        final String codecNameDat = formatName + CODEC_SFX_DAT;
        CodecUtil.writeHeader(indexStream, codecNameIdx, VERSION_CURRENT);
        CodecUtil.writeHeader(fieldsStream, codecNameDat, VERSION_CURRENT);
        assert CodecUtil.headerLength(codecNameDat) == fieldsStream.getFilePointer();
        assert CodecUtil.headerLength(codecNameIdx) == indexStream.getFilePointer();

        indexWriter = new CompressingStoredFieldsIndexWriter(indexStream);
        indexStream = null;

        fieldsStream.writeVInt(chunkSize);
        fieldsStream.writeVInt(PackedInts.VERSION_CURRENT);

        success = true;
    } finally {
        if (!success) {
            IOUtils.closeWhileHandlingException(indexStream);
            abort();
        }
    }
}

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