Examples of ivory.core.compression.BitInputStream

ivory.core.compression.BitInputStream
This class reads from a file or an InputStream integers that can be coded with different encoding algorithms. It does not use any internal buffering, and operates with bytes. @author Roi Blanco


    public Reader(byte[] bytes, int n) throws IOException {
      this.termCnt = n;
      if (termCnt > 0) {
        bytesIn = new ByteArrayInputStream(bytes);
        bitsIn = new BitInputStream(bytesIn);
      }
    }

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    @Override
    public void reset() {
      try {
        bytesIn.reset();
        bitsIn = new BitInputStream(bytesIn);
        p = -1;
        prevTf = -1;
        needToReadPositions = false;
      } catch (IOException e) {
        throw new RuntimeException(e);

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    private PostingsList postingsList;


    public PostingsReader(byte[] bytes, int n, int collectionSize,
        PostingsListDocSortedPositional list) throws IOException {
      bytesIn = new ByteArrayInputStream(bytes);
      bitsIn = new BitInputStream(bytesIn);
      if (n <= 0) {
        throw new RuntimeException("Invalid number of postings: " + n);
      }
      innerNumPostings = n;
      if (collectionSize <= 0) {

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    @Override
    public void reset() {
      try {
        bytesIn.reset();
        bitsIn = new BitInputStream(bytesIn);
        cnt = 0;
        needToReadPositions = false;
      } catch (IOException e) {
        e.printStackTrace();
        throw new RuntimeException("Error resetting postings.");

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      Preconditions.checkNotNull(bytes);
      Preconditions.checkArgument(numPostings > 0);
      Preconditions.checkArgument(collectionSize > 0);


      bytesIn = new ByteArrayInputStream(bytes);
      bitsIn = new BitInputStream(bytesIn);
      innerNumPostings = numPostings;
      innerCollectionSize = collectionSize;
      innerGolombParam = (int) Math.ceil(0.69 * ((float) innerCollectionSize)
          / (float) innerNumPostings);
      postingsList = list;

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    @Override
    public void reset() {
      try {
        bytesIn.reset();
        bitsIn = new BitInputStream(bytesIn);
        cnt = 0;
      } catch (IOException e) {
        e.printStackTrace();
        throw new RuntimeException("Error resetting postings.");
      }

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      Preconditions.checkNotNull(bytes);
      Preconditions.checkArgument(numPostings > 0);
      Preconditions.checkArgument(collectionSize > 0);


      bytesIn = new ByteArrayInputStream(bytes);
      bitsIn = new BitInputStream(bytesIn);


      innerNumPostings = numPostings;
      innerCollectionSize = collectionSize;
      innerGolombParam = (int) Math.ceil(0.69 * ((float) innerCollectionSize)
          / (float) innerNumPostings);

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    @Override
    public void reset() {
      try {
        bytesIn.reset();
        bitsIn = new BitInputStream(bytesIn);
        cnt = 0;
        needToReadPositions = false;
      } catch (IOException e) {
        e.printStackTrace();
        throw new RuntimeException("Error resetting postings.");

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    public Reader(byte[] bytes, int n) throws IOException {
      this.termCnt = n;
      if (termCnt > 0) {
        bytesIn = new ByteArrayInputStream(bytes);
        bitsIn = new BitInputStream(bytesIn);
      }
    }

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    @Override
    public void reset() {
      try {
        bytesIn.reset();
        bitsIn = new BitInputStream(bytesIn);
        p = -1;
        prevTf = -1;
        needToReadPositions = false;
      } catch (IOException e) {
        throw new RuntimeException(e);

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ivory.core.data.document.LazyTermDocVector$Reader

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ivory.core.data.index.PostingsListDocSortedPositional$PostingsReader

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