Package org.apache.lucene.store

Examples of org.apache.lucene.store.IndexInput.readInt()

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      final int firstInt = input.readInt();
      final int version;
      if (firstInt == -2) {
        // New format, with full header & version:
        version = CodecUtil.checkHeader(input, CODEC, VERSION_START, VERSION_START);
        size = input.readInt();
      } else {
        version = VERSION_PRE;
        size = firstInt;
      }
      if (size == -1) {
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                                  Character.MAX_RADIX);
    }
    lastGeneration = generation;

    try {
      int format = input.readInt();
      if(format < 0){     // file contains explicit format info
        // check that it is a format we can understand
        if (format < FORMAT_SINGLE_NORM_FILE)
          throw new IOException("Unknown format version: " + format);
        version = input.readLong(); // read version
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      if(format < 0){     // file contains explicit format info
        // check that it is a format we can understand
        if (format < FORMAT_SINGLE_NORM_FILE)
          throw new IOException("Unknown format version: " + format);
        version = input.readLong(); // read version
        counter = input.readInt(); // read counter
      }
      else{     // file is in old format without explicit format info
        counter = format;
      }
     
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      }
      else{     // file is in old format without explicit format info
        counter = format;
      }
     
      for (int i = input.readInt(); i > 0; i--) { // read segmentInfos
        addElement(new SegmentInfo(directory, format, input));
      }
     
      if(format >= 0){    // in old format the version number may be at the end of the file
        if (input.getFilePointer() >= input.length())
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          IndexInput input = directory.openInput(segmentFileName);

          int format = 0;
          long version = 0;
          try {
            format = input.readInt();
            if(format < 0){
              if (format < FORMAT_SINGLE_NORM_FILE)
                throw new IOException("Unknown format version: " + format);
              version = input.readLong(); // read version
            }
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              message("segments.gen open: IOException " + e);
            }
            if (genInput != null) {

              try {
                int version = genInput.readInt();
                if (version == FORMAT_LOCKLESS) {
                  long gen0 = genInput.readLong();
                  long gen1 = genInput.readLong();
                  message("fallback check: " + gen0 + "; " + gen1);
                  if (gen0 == gen1) {
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      result.cantOpenSegments = true;
      return result;
    }
    int format = 0;
    try {
      format = input.readInt();
    } catch (Throwable t) {
      msg(infoStream, "ERROR: could not read segment file version in directory");
      if (infoStream != null)
        t.printStackTrace(infoStream);
      result.missingSegmentVersion = true;
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    boolean success = false;
    try {
      CodecUtil.checkHeader(input, Lucene40DocValuesFormat.BYTES_FIXED_STRAIGHT_CODEC_NAME,
                                   Lucene40DocValuesFormat.BYTES_FIXED_STRAIGHT_VERSION_START,
                                   Lucene40DocValuesFormat.BYTES_FIXED_STRAIGHT_VERSION_CURRENT);
      final int fixedLength = input.readInt();
      PagedBytes bytes = new PagedBytes(16);
      bytes.copy(input, fixedLength * (long)state.segmentInfo.getDocCount());
      final PagedBytes.Reader bytesReader = bytes.freeze(true);
      CodecUtil.checkEOF(input);
      success = true;
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      CodecUtil.checkHeader(index, Lucene40DocValuesFormat.BYTES_FIXED_DEREF_CODEC_NAME_IDX,
                                   Lucene40DocValuesFormat.BYTES_FIXED_DEREF_VERSION_START,
                                   Lucene40DocValuesFormat.BYTES_FIXED_DEREF_VERSION_CURRENT);

      final int fixedLength = data.readInt();
      final int valueCount = index.readInt();
      PagedBytes bytes = new PagedBytes(16);
      bytes.copy(data, fixedLength * (long) valueCount);
      final PagedBytes.Reader bytesReader = bytes.freeze(true);
      final PackedInts.Reader reader = PackedInts.getReader(index);
      CodecUtil.checkEOF(data);
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      final int size = input.readVInt(); //read in the size
      FieldInfo infos[] = new FieldInfo[size];

      for (int i = 0; i < size; i++) {
        String name = input.readString();
        final int fieldNumber = format == PreFlexRWFieldInfosWriter.FORMAT_PREFLEX_RW ? input.readInt() : i;
        byte bits = input.readByte();
        boolean isIndexed = (bits & PreFlexRWFieldInfosWriter.IS_INDEXED) != 0;
        boolean storeTermVector = (bits & PreFlexRWFieldInfosWriter.STORE_TERMVECTOR) != 0;
        boolean omitNorms = (bits & PreFlexRWFieldInfosWriter.OMIT_NORMS) != 0;
        boolean storePayloads = (bits & PreFlexRWFieldInfosWriter.STORE_PAYLOADS) != 0;
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