Example usage for org.apache.lucene.index SegmentInfo setCodec

Introduction

In this page you can find the example usage for org.apache.lucene.index SegmentInfo setCodec.

Prototype

public void setCodec(Codec codec) 

Source Link

Document

Can only be called once.

Usage

From source file:org.apache.blur.mapreduce.lib.GenericRecordReader.java

License:Apache License

private SegmentInfoPerCommit segmentInfosRead(Directory directory, String segmentFileName,
        String segmentInfoName) throws IOException {
    boolean success = false;

    ChecksumIndexInput input = new ChecksumIndexInput(directory.openInput(segmentFileName, IOContext.READ));
    try {//from   w  ww  .ja v a2  s.  c om
        final int format = input.readInt();
        if (format == CodecUtil.CODEC_MAGIC) {
            // 4.0+
            CodecUtil.checkHeaderNoMagic(input, "segments", SegmentInfos.VERSION_40, SegmentInfos.VERSION_40);
            input.readLong();// read version
            input.readInt(); // read counter
            int numSegments = input.readInt();
            if (numSegments < 0) {
                throw new CorruptIndexException(
                        "invalid segment count: " + numSegments + " (resource: " + input + ")");
            }
            for (int seg = 0; seg < numSegments; seg++) {
                String segName = input.readString();
                Codec codec = Codec.forName(input.readString());
                SegmentInfo info = codec.segmentInfoFormat().getSegmentInfoReader().read(directory, segName,
                        IOContext.READ);
                info.setCodec(codec);
                long delGen = input.readLong();
                int delCount = input.readInt();
                if (delCount < 0 || delCount > info.getDocCount()) {
                    throw new CorruptIndexException(
                            "invalid deletion count: " + delCount + " (resource: " + input + ")");
                }
                if (segName.equals(segmentInfoName)) {
                    success = true;
                    return new SegmentInfoPerCommit(info, delCount, delGen);
                }
            }
        } else {
            throw new IOException("Legacy Infos not supported for dir [" + directory + "].");
        }
        throw new IOException("Segment [" + segmentInfoName + "] nout found in dir [" + directory + "]");
    } finally {
        if (!success) {
            IOUtils.closeWhileHandlingException(input);
        } else {
            input.close();
        }
    }
}

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