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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    Directory dir = newDirectory();
    IndexOutput out = dir.createOutput("fst", IOContext.DEFAULT);
    fst.save(out);
    out.close();

    IndexInput in = dir.openInput("fst", IOContext.DEFAULT);
    final FST<Long> fst2 = new FST<Long>(in, outputs);
    checkStopNodes(fst2, outputs);
    in.close();
    dir.close();
  }
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        }
        Directory dir = newDirectory();
        IndexOutput out = dir.createOutput("bytes", IOContext.DEFAULT);
        bytes.writeTo(out);
        out.close();
        IndexInput in = dir.openInput("bytes", IOContext.DEFAULT);
        bytesToVerify = new BytesStore(in, numBytes, _TestUtil.nextInt(random(), 256, Integer.MAX_VALUE));
        in.close();
        dir.close();
      } else {
        bytesToVerify = bytes;
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        long normSeek;

        if (singleNormFile) {
          normSeek = nextNormSeek;
          if (singleNormStream == null) {
            singleNormStream = d.openInput(fileName, readBufferSize);
            singleNormRef = new Ref();
          } else {
            singleNormRef.incRef();
          }
          // All norms in the .nrm file can share a single IndexInput since
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          // they are only used in a synchronized context.
          // If this were to change in the future, a clone could be done here.
          normInput = singleNormStream;
        } else {
          normSeek = 0;
          normInput = d.openInput(fileName);
        }

        norms.put(fi.name, new Norm(normInput, fi.number, normSeek));
        nextNormSeek += maxDoc; // increment also if some norms are separate
      }
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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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      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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