Examples of org.apache.lucene.store.DataOutput.writeVInt()

Class org.apache.lucene.store.DataOutput

Examples of org.apache.lucene.store.DataOutput.writeVInt()

org.apache.lucene.store.DataOutput.writeVInt()
Writes an int in a variable-length format. Writes between one and five bytes. Smaller values take fewer bytes. Negative numbers are not supported. @see DataInput#readVInt()

    new File(filename).getParentFile().mkdirs();
    final FileOutputStream os = new FileOutputStream(filename);
    try {
      final DataOutput out = new OutputStreamDataOutput(os);
      CodecUtil.writeHeader(out, BinaryDictionary.DICT_HEADER, BinaryDictionary.VERSION);
      out.writeVInt(buffer.position());
      final WritableByteChannel channel = Channels.newChannel(os);
      // Write Buffer
      buffer.flip();  // set position to 0, set limit to current position
      channel.write(buffer);
      assert buffer.remaining() == 0L;

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    OutputStream os = new FileOutputStream(filename);
    try {
      os = new BufferedOutputStream(os);
      final DataOutput out = new OutputStreamDataOutput(os);
      CodecUtil.writeHeader(out, ConnectionCosts.HEADER, ConnectionCosts.VERSION);
      out.writeVInt(forwardSize);
      out.writeVInt(backwardSize);
      int last = 0;
      assert costs.length == backwardSize;
      for (short[] a : costs) {
        assert a.length == forwardSize;

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    try {
      os = new BufferedOutputStream(os);
      final DataOutput out = new OutputStreamDataOutput(os);
      CodecUtil.writeHeader(out, ConnectionCosts.HEADER, ConnectionCosts.VERSION);
      out.writeVInt(forwardSize);
      out.writeVInt(backwardSize);
      int last = 0;
      assert costs.length == backwardSize;
      for (short[] a : costs) {
        assert a.length == forwardSize;
        for (int i = 0; i < a.length; i++) {

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      assert costs.length == backwardSize;
      for (short[] a : costs) {
        assert a.length == forwardSize;
        for (int i = 0; i < a.length; i++) {
          int delta = (int)a[i] - last;
          out.writeVInt((delta >> 31) ^ (delta << 1));
          last = a[i];
        }
      }
    } finally {
      os.close();

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    OutputStream os = new FileOutputStream(filename);
    try {
      os = new BufferedOutputStream(os);
      final DataOutput out = new OutputStreamDataOutput(os);
      CodecUtil.writeHeader(out, ConnectionCosts.HEADER, ConnectionCosts.VERSION);
      out.writeVInt(forwardSize);
      out.writeVInt(backwardSize);
      int last = 0;
      assert costs.length == backwardSize;
      for (short[] a : costs) {
        assert a.length == forwardSize;

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    try {
      os = new BufferedOutputStream(os);
      final DataOutput out = new OutputStreamDataOutput(os);
      CodecUtil.writeHeader(out, ConnectionCosts.HEADER, ConnectionCosts.VERSION);
      out.writeVInt(forwardSize);
      out.writeVInt(backwardSize);
      int last = 0;
      assert costs.length == backwardSize;
      for (short[] a : costs) {
        assert a.length == forwardSize;
        for (int i = 0; i < a.length; i++) {

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      assert costs.length == backwardSize;
      for (short[] a : costs) {
        assert a.length == forwardSize;
        for (int i = 0; i < a.length; i++) {
          int delta = (int)a[i] - last;
          out.writeVInt((delta >> 31) ^ (delta << 1));
          last = a[i];
        }
      }
    } finally {
      os.close();

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      os = new BufferedOutputStream(os);
      final DataOutput out = new OutputStreamDataOutput(os);
      CodecUtil.writeHeader(out, BinaryDictionary.TARGETMAP_HEADER, BinaryDictionary.VERSION);
      
      final int numSourceIds = lastSourceId + 1;
      out.writeVInt(targetMapEndOffset); // <-- size of main array
      out.writeVInt(numSourceIds + 1); // <-- size of offset array (+ 1 more entry)
      int prev = 0, sourceId = 0;
      for (int ofs = 0; ofs < targetMapEndOffset; ofs++) {
        final int val = targetMap[ofs], delta = val - prev;
        assert delta >= 0;

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      final DataOutput out = new OutputStreamDataOutput(os);
      CodecUtil.writeHeader(out, BinaryDictionary.TARGETMAP_HEADER, BinaryDictionary.VERSION);
      
      final int numSourceIds = lastSourceId + 1;
      out.writeVInt(targetMapEndOffset); // <-- size of main array
      out.writeVInt(numSourceIds + 1); // <-- size of offset array (+ 1 more entry)
      int prev = 0, sourceId = 0;
      for (int ofs = 0; ofs < targetMapEndOffset; ofs++) {
        final int val = targetMap[ofs], delta = val - prev;
        assert delta >= 0;
        if (ofs == targetMapOffsets[sourceId]) {

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      int prev = 0, sourceId = 0;
      for (int ofs = 0; ofs < targetMapEndOffset; ofs++) {
        final int val = targetMap[ofs], delta = val - prev;
        assert delta >= 0;
        if (ofs == targetMapOffsets[sourceId]) {
          out.writeVInt((delta << 1) | 0x01);
          sourceId++;
        } else {
          out.writeVInt((delta << 1));
        }
        prev += delta;

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