Java Code Examples for org.apache.lucene.codecs.Codec#forName()

The following examples show how to use org.apache.lucene.codecs.Codec#forName() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: SegmentInfos.java    From lucene-solr with Apache License 2.0 5 votes vote down vote up 
private static Codec readCodec(DataInput input) throws IOException {
  final String name = input.readString();
  try {
    return Codec.forName(name);
  } catch (IllegalArgumentException e) {
    // maybe it's an old default codec that moved
    if (name.startsWith("Lucene")) {
      throw new IllegalArgumentException("Could not load codec '" + name + "'.  Did you forget to add lucene-backward-codecs.jar?", e);
    }
    throw e;
  }
}
Example 2
Source File: TestLucene70SegmentInfoFormat.java    From lucene-solr with Apache License 2.0 5 votes vote down vote up 
@Override
protected Codec getCodec() {
  return new FilterCodec("Lucene84", Codec.forName("Lucene84")) {
    @Override
    public SegmentInfoFormat segmentInfoFormat() {
      return new Lucene70RWSegmentInfoFormat();
    }
  };
}
Example 3
Source File: Test2BPoints.java    From lucene-solr with Apache License 2.0 4 votes vote down vote up 
private static Codec getCodec() {
  return Codec.forName("Lucene84");
}
Example 4
Source File: TestDuelingCodecs.java    From lucene-solr with Apache License 2.0 4 votes vote down vote up 
@Override
public void setUp() throws Exception {
  super.setUp();

  // for now it's SimpleText vs Default(random postings format)
  // as this gives the best overall coverage. when we have more
  // codecs we should probably pick 2 from Codec.availableCodecs()
  
  leftCodec = Codec.forName("SimpleText");
  rightCodec = new RandomCodec(random());

  leftDir = newFSDirectory(createTempDir("leftDir"));
  rightDir = newFSDirectory(createTempDir("rightDir"));

  seed = random().nextLong();

  // must use same seed because of random payloads, etc
  int maxTermLength = TestUtil.nextInt(random(), 1, IndexWriter.MAX_TERM_LENGTH);
  MockAnalyzer leftAnalyzer = new MockAnalyzer(new Random(seed));
  leftAnalyzer.setMaxTokenLength(maxTermLength);
  MockAnalyzer rightAnalyzer = new MockAnalyzer(new Random(seed));
  rightAnalyzer.setMaxTokenLength(maxTermLength);

  // but these can be different
  // TODO: this turns this into a really big test of Multi*, is that what we want?
  IndexWriterConfig leftConfig = newIndexWriterConfig(leftAnalyzer);
  leftConfig.setCodec(leftCodec);
  // preserve docids
  leftConfig.setMergePolicy(newLogMergePolicy());

  IndexWriterConfig rightConfig = newIndexWriterConfig(rightAnalyzer);
  rightConfig.setCodec(rightCodec);
  // preserve docids
  rightConfig.setMergePolicy(newLogMergePolicy());

  // must use same seed because of random docvalues fields, etc
  leftWriter = new RandomIndexWriter(new Random(seed), leftDir, leftConfig);
  rightWriter = new RandomIndexWriter(new Random(seed), rightDir, rightConfig);

  info = "left: " + leftCodec.toString() + " / right: " + rightCodec.toString();
}
Example 5
Source File: TestNamedSPILoader.java    From lucene-solr with Apache License 2.0 4 votes vote down vote up 
public void testLookup() {
  String currentName = TestUtil.getDefaultCodec().getName();
  Codec codec = Codec.forName(currentName);
  assertEquals(currentName, codec.getName());
}
Example 6
Source File: GenericRecordReader.java    From incubator-retired-blur with Apache License 2.0 4 votes vote down vote up 
private SegmentInfoPerCommit segmentInfosRead(Directory directory, String segmentFileName, String segmentInfoName)
    throws IOException {
  boolean success = false;

  ChecksumIndexInput input = new ChecksumIndexInput(directory.openInput(segmentFileName, IOContext.READ));
  try {
    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();
    }
  }
}