Package org.apache.lucene.store

Examples of org.apache.lucene.store.Directory.openInput()

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    long gen = SegmentInfos.getLastCommitGeneration(dir);
    assertTrue("segment generation should be > 0 but got " + gen, gen > 0);

    final String segmentsFileName = SegmentInfos.getLastCommitSegmentsFileName(dir);
    IndexInput in = dir.openInput(segmentsFileName, newIOContext(random()));
    IndexOutput out = dir.createOutput(IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS, "", 1+gen), newIOContext(random()));
    out.copyBytes(in, in.length()-1);
    byte b = in.readByte();
    out.writeByte((byte) (1+b));
    out.close();
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      // writing segments file:
      String fileNameIn = SegmentInfos.getLastCommitSegmentsFileName(dir);
      String fileNameOut = IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS,
                                                                 "",
                                                                 1+gen);
      IndexInput in = dir.openInput(fileNameIn, newIOContext(random()));
      IndexOutput out = dir.createOutput(fileNameOut, newIOContext(random()));
      long length = in.length();
      for(int i=0;i<length-1;i++) {
        out.writeByte(in.readByte());
      }
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      Revision rev = new IndexAndTaxonomyRevision(indexWriter, taxoWriter);
      for (Entry<String,List<RevisionFile>> e : rev.getSourceFiles().entrySet()) {
        String source = e.getKey();
        Directory dir = source.equals(IndexAndTaxonomyRevision.INDEX_SOURCE) ? indexDir : taxoDir;
        for (RevisionFile file : e.getValue()) {
          IndexInput src = dir.openInput(file.fileName, IOContext.READONCE);
          InputStream in = rev.open(source, file.fileName);
          assertEquals(src.length(), in.available());
          byte[] srcBytes = new byte[(int) src.length()];
          byte[] inBytes = new byte[(int) src.length()];
          int offset = 0;
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      LOG.info("Context [{0}] index closed", context);
      return;
    }
    long length = endingPosition - startingPosition;
    final long totalLength = length;
    IndexInput input = new ThrottledIndexInput(dir.openInput(fileName, IOContext.READ), _maxBytesPerSec);
    input.seek(startingPosition);
    byte[] buf = new byte[8192];
    long start = System.nanoTime();
    long bytesReadPerPass = 0;
    while (length > 0) {
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      }
      IndexTracer tracer = new IndexTracer((TraceableDirectory) directory, _maxSampleSize);
      String fileName = getSampleFileName(segmentReader.getSegmentName());
      List<IndexTracerResult> segmentTraces = new ArrayList<IndexTracerResult>();
      if (directory.fileExists(fileName)) {
        IndexInput input = directory.openInput(fileName, IOContext.READONCE);
        segmentTraces = read(input);
        input.close();
      } else {
        Fields fields = atomicReader.fields();
        for (String field : fields) {
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            start = new Date();

            for (int i = 0; i < count; i++) {
                String name = i + ".dat";
                int length = gen.nextInt() & LENGTH_MASK;
                IndexInput file = store.openInput(name);

                if (file.length() != length)
                    throw new Exception("length incorrect");

                for (int j = 0; j < length; j++) {
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            start = new Date();

            for (int i = 0; i < count; i++) {
                String name = i + ".dat";
                int length = gen.nextInt() & LENGTH_MASK;
                IndexInput file = store.openInput(name);
               
                if (file.length() != length)
                    throw new Exception("length incorrect");

                byte[] data = new byte[length];
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        // writing segments file:
        String fileNameIn = SegmentInfos.getCurrentSegmentFileName(dir);
        String fileNameOut = IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS,
                                                                   "",
                                                                   1+gen);
        IndexInput in = dir.openInput(fileNameIn);
        IndexOutput out = dir.createOutput(fileNameOut);
        long length = in.length();
        for(int i=0;i<length-1;i++) {
          out.writeByte(in.readByte());
        }
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        String fileNameIn = SegmentInfos.getCurrentSegmentFileName(dir);
        String fileNameOut = IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS,
                                                                   "",
                                                                   1+gen);
        IndexInput in = dir.openInput(fileNameIn);
        IndexOutput out = dir.createOutput(fileNameOut);
        long length = in.length();
        for(int i=0;i<length-1;i++) {
          out.writeByte(in.readByte());
        }
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    long gen = SegmentInfos.getCurrentSegmentGeneration(dir);
    assertTrue("segment generation should be > 1 but got " + gen, gen > 1);

    final String segmentsFileName = SegmentInfos.getCurrentSegmentFileName(dir);
    IndexInput in = dir.openInput(segmentsFileName);
    IndexOutput out = dir.createOutput(IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS, "", 1+gen));
    out.copyBytes(in, in.length()-1);
    byte b = in.readByte();
    out.writeByte((byte) (1+b));
    out.close();
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