Examples of org.apache.lucene.util.ByteBlockPool$DirectTrackingAllocator

org.apache.lucene.util.ByteBlockPool
Class that Posting and PostingVector use to write byte streams into shared fixed-size byte[] arrays. The idea is to allocate slices of increasing lengths For example, the first slice is 5 bytes, the next slice is 14, etc. We start by writing our bytes into the first 5 bytes. When we hit the end of the slice, we allocate the next slice and then write the address of the new slice into the last 4 bytes of the previous slice (the "forwarding address"). Each slice is filled with 0's initially, and we mark the end with a non-zero byte. This way the methods that are writing into the slice don't need to record its length and instead allocate a new slice once they hit a non-zero byte. @lucene.internal

    this.consumer = consumer;
    this.trackAllocations = trackAllocations; 
    this.nextTermsHash = nextTermsHash;
    this.bytesUsed = trackAllocations ? docWriter.bytesUsed : Counter.newCounter();
    intPool = new IntBlockPool(docWriter.intBlockAllocator);
    bytePool = new ByteBlockPool(docWriter.byteBlockAllocator);


    if (nextTermsHash != null) {
      // We are primary
      primary = true;
      termBytePool = bytePool;

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  /**
   * Creates a new {@link BytesRefArray} with a counter to track allocated bytes
   */
  public BytesRefArray(Counter bytesUsed) {
    this.pool = new ByteBlockPool(new ByteBlockPool.DirectTrackingAllocator(
        bytesUsed));
    pool.nextBuffer();
    bytesUsed.addAndGet(RamUsageEstimator.NUM_BYTES_ARRAY_HEADER
        + RamUsageEstimator.NUM_BYTES_INT);
    this.bytesUsed = bytesUsed;

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    this.storeOffsets = storeOffsets;
    this.bytesUsed = Counter.newCounter();
    final int maxBufferedByteBlocks = (int)((maxReusedBytes/2) / ByteBlockPool.BYTE_BLOCK_SIZE );
    final int maxBufferedIntBlocks = (int) ((maxReusedBytes - (maxBufferedByteBlocks*ByteBlockPool.BYTE_BLOCK_SIZE))/(IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT));
    assert (maxBufferedByteBlocks * ByteBlockPool.BYTE_BLOCK_SIZE) + (maxBufferedIntBlocks * IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT) <= maxReusedBytes;
    byteBlockPool = new ByteBlockPool(new RecyclingByteBlockAllocator(ByteBlockPool.BYTE_BLOCK_SIZE, maxBufferedByteBlocks, bytesUsed));
    intBlockPool = new IntBlockPool(new RecyclingIntBlockAllocator(IntBlockPool.INT_BLOCK_SIZE, maxBufferedIntBlocks, bytesUsed));
    postingsWriter = new SliceWriter(intBlockPool);
  }

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    this.storeOffsets = storeOffsets;
    this.bytesUsed = Counter.newCounter();
    final int maxBufferedByteBlocks = (int)((maxReusedBytes/2) / ByteBlockPool.BYTE_BLOCK_SIZE );
    final int maxBufferedIntBlocks = (int) ((maxReusedBytes - (maxBufferedByteBlocks*ByteBlockPool.BYTE_BLOCK_SIZE))/(IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT));
    assert (maxBufferedByteBlocks * ByteBlockPool.BYTE_BLOCK_SIZE) + (maxBufferedIntBlocks * IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT) <= maxReusedBytes;
    byteBlockPool = new ByteBlockPool(new RecyclingByteBlockAllocator(ByteBlockPool.BYTE_BLOCK_SIZE, maxBufferedByteBlocks, bytesUsed));
    intBlockPool = new IntBlockPool(new RecyclingIntBlockAllocator(IntBlockPool.INT_BLOCK_SIZE, maxBufferedIntBlocks, bytesUsed));
    postingsWriter = new SliceWriter(intBlockPool);
  }

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    this.storeOffsets = storeOffsets;
    this.bytesUsed = Counter.newCounter();
    final int maxBufferedByteBlocks = (int)((maxReusedBytes/2) / ByteBlockPool.BYTE_BLOCK_SIZE );
    final int maxBufferedIntBlocks = (int) ((maxReusedBytes - (maxBufferedByteBlocks*ByteBlockPool.BYTE_BLOCK_SIZE))/(IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT));
    assert (maxBufferedByteBlocks * ByteBlockPool.BYTE_BLOCK_SIZE) + (maxBufferedIntBlocks * IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT) <= maxReusedBytes;
    byteBlockPool = new ByteBlockPool(new RecyclingByteBlockAllocator(ByteBlockPool.BYTE_BLOCK_SIZE, maxBufferedByteBlocks, bytesUsed));
    intBlockPool = new IntBlockPool(new RecyclingIntBlockAllocator(IntBlockPool.INT_BLOCK_SIZE, maxBufferedIntBlocks, bytesUsed));
    postingsWriter = new SliceWriter(intBlockPool);
  }

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  public SortedSetDocValuesWriter(FieldInfo fieldInfo, Counter iwBytesUsed) {
    this.fieldInfo = fieldInfo;
    this.iwBytesUsed = iwBytesUsed;
    hash = new BytesRefHash(
        new ByteBlockPool(
            new ByteBlockPool.DirectTrackingAllocator(iwBytesUsed)),
            BytesRefHash.DEFAULT_CAPACITY,
            new DirectBytesStartArray(BytesRefHash.DEFAULT_CAPACITY, iwBytesUsed));
    pending = new AppendingPackedLongBuffer(PackedInts.COMPACT);
    pendingCounts = new AppendingDeltaPackedLongBuffer(PackedInts.COMPACT);

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  public SortedDocValuesWriter(FieldInfo fieldInfo, Counter iwBytesUsed) {
    this.fieldInfo = fieldInfo;
    this.iwBytesUsed = iwBytesUsed;
    hash = new BytesRefHash(
        new ByteBlockPool(
            new ByteBlockPool.DirectTrackingAllocator(iwBytesUsed)),
            BytesRefHash.DEFAULT_CAPACITY,
            new DirectBytesStartArray(BytesRefHash.DEFAULT_CAPACITY, iwBytesUsed));
    pending = new AppendingDeltaPackedLongBuffer(PackedInts.COMPACT);
    bytesUsed = pending.ramBytesUsed();

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    this.storeOffsets = storeOffsets;
    this.bytesUsed = Counter.newCounter();
    final int maxBufferedByteBlocks = (int)((maxReusedBytes/2) / ByteBlockPool.BYTE_BLOCK_SIZE );
    final int maxBufferedIntBlocks = (int) ((maxReusedBytes - (maxBufferedByteBlocks*ByteBlockPool.BYTE_BLOCK_SIZE))/(IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT));
    assert (maxBufferedByteBlocks * ByteBlockPool.BYTE_BLOCK_SIZE) + (maxBufferedIntBlocks * IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT) <= maxReusedBytes;
    byteBlockPool = new ByteBlockPool(new RecyclingByteBlockAllocator(ByteBlockPool.BYTE_BLOCK_SIZE, maxBufferedByteBlocks, bytesUsed));
    intBlockPool = new IntBlockPool(new RecyclingIntBlockAllocator(IntBlockPool.INT_BLOCK_SIZE, maxBufferedIntBlocks, bytesUsed));
    postingsWriter = new SliceWriter(intBlockPool);
  }

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    this.docState = docWriter.docState;
    this.trackAllocations = trackAllocations; 
    this.nextTermsHash = nextTermsHash;
    this.bytesUsed = trackAllocations ? docWriter.bytesUsed : Counter.newCounter();
    intPool = new IntBlockPool(docWriter.intBlockAllocator);
    bytePool = new ByteBlockPool(docWriter.byteBlockAllocator);


    if (nextTermsHash != null) {
      // We are primary
      termBytePool = bytePool;
      nextTermsHash.termBytePool = bytePool;

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    this.storeOffsets = storeOffsets;
    this.bytesUsed = Counter.newCounter();
    final int maxBufferedByteBlocks = (int)((maxReusedBytes/2) / ByteBlockPool.BYTE_BLOCK_SIZE );
    final int maxBufferedIntBlocks = (int) ((maxReusedBytes - (maxBufferedByteBlocks*ByteBlockPool.BYTE_BLOCK_SIZE))/(IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT));
    assert (maxBufferedByteBlocks * ByteBlockPool.BYTE_BLOCK_SIZE) + (maxBufferedIntBlocks * IntBlockPool.INT_BLOCK_SIZE * RamUsageEstimator.NUM_BYTES_INT) <= maxReusedBytes;
    byteBlockPool = new ByteBlockPool(new RecyclingByteBlockAllocator(ByteBlockPool.BYTE_BLOCK_SIZE, maxBufferedByteBlocks, bytesUsed));
    intBlockPool = new IntBlockPool(new RecyclingIntBlockAllocator(IntBlockPool.INT_BLOCK_SIZE, maxBufferedIntBlocks, bytesUsed));
    postingsWriter = new SliceWriter(intBlockPool);
  }

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org.apache.lucene.index.memory.MemoryIndex

org.apache.lucene.index.SortedDocValuesWriter

org.apache.lucene.index.SortedSetDocValuesWriter

org.apache.lucene.index.TermsHash

org.apache.lucene.index.TermVectorsConsumerPerField

org.apache.lucene.index.TestByteSlices

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org.apache.lucene.util.BytesRefArray

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