Package org.apache.lucene.store

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

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      final int firstInt = input.readInt();

      if (firstInt == -2) {
        // New format, with full header & version:
        version = CodecUtil.checkHeader(input, CODEC, VERSION_START, VERSION_CURRENT);
        size = input.readInt();
      } else {
        version = VERSION_PRE;
        size = firstInt;
      }
      if (size == -1) {
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    try {
      int codecVersion = CodecUtil.checkHeader(input, Lucene46SegmentInfoFormat.CODEC_NAME,
                                                      Lucene46SegmentInfoFormat.VERSION_START,
                                                      Lucene46SegmentInfoFormat.VERSION_CURRENT);
      final String version = input.readString();
      final int docCount = input.readInt();
      if (docCount < 0) {
        throw new CorruptIndexException("invalid docCount: " + docCount + " (resource=" + input + ")");
      }
      final boolean isCompoundFile = input.readByte() == SegmentInfo.YES;
      final Map<String,String> diagnostics = input.readStringStringMap();
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    generation = generationFromSegmentsFileName(segmentFileName);

    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 < CURRENT_FORMAT)
          throw new CorruptIndexException("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 < CURRENT_FORMAT)
          throw new CorruptIndexException("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
        add(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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    generation = generationFromSegmentsFileName(segmentFileName);

    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 < CURRENT_FORMAT)
          throw new CorruptIndexException("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 < CURRENT_FORMAT)
          throw new CorruptIndexException("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
        add(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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    generation = generationFromSegmentsFileName(segmentFileName);

    lastGeneration = generation;

    try {
      int format = input.readInt();
      // check that it is a format we can understand
      if (format > FORMAT_MINIMUM) {
        throw new IndexFormatTooOldException(input, format,
          FORMAT_MINIMUM, FORMAT_MAXIMUM);
      }
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      if (format < FORMAT_MAXIMUM) {
        throw new IndexFormatTooNewException(input, format,
          FORMAT_MINIMUM, FORMAT_MAXIMUM);
      }
      version = input.readLong(); // read version
      counter = input.readInt(); // read counter
     
      for (int i = input.readInt(); i > 0; i--) { // read segmentInfos
        SegmentInfo si = new SegmentInfo(directory, format, input);
        if (si.getVersion() == null) {
          // It's a pre-3.1 segment, upgrade its version to either 3.0 or 2.x
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