Examples of org.apache.lucene.store.IndexInput.seek()

Class org.apache.lucene.store.IndexInput

Examples of org.apache.lucene.store.IndexInput.seek()

org.apache.lucene.store.IndexInput.seek()
Sets current position in this file, where the next read will occur. @see #getFilePointer()

      return;
    }


    IndexInput normStream = (IndexInput) norm.in.clone();
    try {                                         // read from disk
      normStream.seek(norm.normSeek);
      //normStream.readBytes(bytes, offset, maxDoc()); 
      normStream.readBytes(bytes, offset, maxDocPlus4()); 
    } finally {
      normStream.close();
    }

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      final byte[] buffer;
      final IndexInput input = directory.openInput(fileName);
      final int length = (int) input.length();//TODO verify size
      try {
         if (seekTo != 0) {
            input.seek(seekTo);
         }
         bufferSize = Math.min(length - seekTo, bufferSize);
         buffer = new byte[bufferSize];
         input.readBytes(buffer, 0, bufferSize);
      }

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      final byte[] buffer;
      final IndexInput input = directory.openInput(fileName);
      final long length = input.length();
      try {
         if (seekTo != 0) {
            input.seek(seekTo);
         }
         bufferSize = (int) Math.min(length - seekTo, (long)bufferSize);
         buffer = new byte[bufferSize];
         input.readBytes(buffer, 0, bufferSize);
      }

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      rootBlockFP = (new ByteArrayDataInput(rootCode.bytes, rootCode.offset, rootCode.length)).readVLong() >>> BlockTreeTermsWriter.OUTPUT_FLAGS_NUM_BITS;


      if (indexIn != null) {
        final IndexInput clone = indexIn.clone();
        //System.out.println("start=" + indexStartFP + " field=" + fieldInfo.name);
        clone.seek(indexStartFP);
        index = new FST<BytesRef>(clone, ByteSequenceOutputs.getSingleton());
        
        /*
        if (false) {
          final String dotFileName = segment + "_" + fieldInfo.name + ".dot";

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    return ramBytesUsed.get();
  }
  
  LongValues getNumeric(NumericEntry entry) throws IOException {
    final IndexInput data = this.data.clone();
    data.seek(entry.offset);


    switch (entry.format) {
      case DELTA_COMPRESSED:
        final BlockPackedReader reader = new BlockPackedReader(data, entry.packedIntsVersion, entry.blockSize, entry.count, true);
        return reader;

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    return new LongBinaryDocValues() {
      @Override
      public void get(long id, BytesRef result) {
        long address = bytes.offset + id * bytes.maxLength;
        try {
          data.seek(address);
          // NOTE: we could have one buffer, but various consumers (e.g. FieldComparatorSource) 
          // assume "they" own the bytes after calling this!
          final byte[] buffer = new byte[bytes.maxLength];
          data.readBytes(buffer, 0, buffer.length);
          result.bytes = buffer;

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      public void get(long id, BytesRef result) {
        long startAddress = bytes.offset + (id == 0 ? 0 : addresses.get(id-1));
        long endAddress = bytes.offset + addresses.get(id);
        int length = (int) (endAddress - startAddress);
        try {
          data.seek(startAddress);
          // NOTE: we could have one buffer, but various consumers (e.g. FieldComparatorSource) 
          // assume "they" own the bytes after calling this!
          final byte[] buffer = new byte[length];
          data.readBytes(buffer, 0, buffer.length);
          result.bytes = buffer;

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  public SortedDocValues getSorted(FieldInfo field) throws IOException {
    final int valueCount = (int) binaries.get(field.number).count;
    final BinaryDocValues binary = getBinary(field);
    NumericEntry entry = ords.get(field.number);
    IndexInput data = this.data.clone();
    data.seek(entry.offset);
    final BlockPackedReader ordinals = new BlockPackedReader(data, entry.packedIntsVersion, entry.blockSize, entry.count, true);
    
    return new SortedDocValues() {


      @Override

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      return new Bits() {


        @Override
        public boolean get(int index) {
          try {
            in.seek(offset + (index >> 3));
            return (in.readByte() & (1 << (index & 7))) != 0;
          } catch (IOException e) {
            throw new RuntimeException(e);
          }
        }

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      final PairOutputs<Long,Long> outputsInner = new PairOutputs<Long,Long>(posIntOutputs, posIntOutputs);
      final PairOutputs<Long,PairOutputs.Pair<Long,Long>> outputs = new PairOutputs<Long,PairOutputs.Pair<Long,Long>>(posIntOutputs,
                                                                                                                      outputsInner);
      b = new Builder<PairOutputs.Pair<Long,PairOutputs.Pair<Long,Long>>>(FST.INPUT_TYPE.BYTE1, outputs);
      IndexInput in = SimpleTextFieldsReader.this.in.clone();
      in.seek(termsStart);
      final BytesRef lastTerm = new BytesRef(10);
      long lastDocsStart = -1;
      int docFreq = 0;
      long totalTermFreq = 0;
      FixedBitSet visitedDocs = new FixedBitSet(maxDoc);

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