Package org.apache.lucene.store

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

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      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
        counter = input.readInt(); // read counter
      }
      else{     // file is in old format without explicit format info
        counter = format;
      }
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      if(format >= 0){    // in old format the version number may be at the end of the file
        if (input.getFilePointer() >= input.length())
          version = System.currentTimeMillis(); // old file format without version number
        else
          version = input.readLong(); // read version
      }

      if (format <= FORMAT_USER_DATA) {
        if (format <= FORMAT_DIAGNOSTICS) {
          userData = input.readStringStringMap();
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        userData = Collections.<String,String>emptyMap();
      }

      if (format <= FORMAT_CHECKSUM) {
        final long checksumNow = input.getChecksum();
        final long checksumThen = input.readLong();
        if (checksumNow != checksumThen)
          throw new CorruptIndexException("checksum mismatch in segments file");
      }
      success = true;
    }
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