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

Class org.apache.lucene.store.IndexInput

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

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

    IndexInput in = readState.directory.openInput(idFileName, readState.context);
    boolean success = false;
    final int id;
    try {
      CodecUtil.checkHeader(in, RAM_ONLY_NAME, VERSION_START, VERSION_LATEST);
      id = in.readVInt();
      success = true;
    } finally {
      if (!success) {
        IOUtils.closeWhileHandlingException(in);
      } else {

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    try {
      CodecUtil.checkHeader(input, Lucene42FieldInfosFormat.CODEC_NAME, 
                                   Lucene42FieldInfosFormat.FORMAT_START, 
                                   Lucene42FieldInfosFormat.FORMAT_CURRENT);


      final int size = input.readVInt(); //read in the size
      FieldInfo infos[] = new FieldInfo[size];


      for (int i = 0; i < size; i++) {
        String name = input.readString();
        final int fieldNumber = input.readVInt();

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      final int size = input.readVInt(); //read in the size
      FieldInfo infos[] = new FieldInfo[size];


      for (int i = 0; i < size; i++) {
        String name = input.readString();
        final int fieldNumber = input.readVInt();
        byte bits = input.readByte();
        boolean isIndexed = (bits & Lucene42FieldInfosFormat.IS_INDEXED) != 0;
        boolean storeTermVector = (bits & Lucene42FieldInfosFormat.STORE_TERMVECTOR) != 0;
        boolean omitNorms = (bits & Lucene42FieldInfosFormat.OMIT_NORMS) != 0;
        boolean storePayloads = (bits & Lucene42FieldInfosFormat.STORE_PAYLOADS) != 0;

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    final SortedMap<String,TermsReader> fields = new TreeMap<String,TermsReader>();


    try {
      while(true) {
        final int termCount = in.readVInt();
        if (termCount == 0) {
          break;
        }
        final TermsReader termsReader = new TermsReader(state.fieldInfos, in, termCount);
        // System.out.println("load field=" + termsReader.field.name);

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        for (int i = nextLiveDoc(0, liveDocs, maxDoc); i < maxDoc; ) {
          if (pendingDocs.isEmpty()
              && (i == 0 || index.getStartPointer(i - 1) < index.getStartPointer(i))) { // start of a chunk
            final long startPointer = index.getStartPointer(i);
            vectorsStream.seek(startPointer);
            final int docBase = vectorsStream.readVInt();
            final int chunkDocs = vectorsStream.readVInt();
            assert docBase + chunkDocs <= matchingSegmentReader.maxDoc();
            if (docBase + chunkDocs < matchingSegmentReader.maxDoc()
                && nextDeletedDoc(docBase, liveDocs, docBase + chunkDocs) == docBase + chunkDocs) {
              final long chunkEnd = index.getStartPointer(docBase + chunkDocs);

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          if (pendingDocs.isEmpty()
              && (i == 0 || index.getStartPointer(i - 1) < index.getStartPointer(i))) { // start of a chunk
            final long startPointer = index.getStartPointer(i);
            vectorsStream.seek(startPointer);
            final int docBase = vectorsStream.readVInt();
            final int chunkDocs = vectorsStream.readVInt();
            assert docBase + chunkDocs <= matchingSegmentReader.maxDoc();
            if (docBase + chunkDocs < matchingSegmentReader.maxDoc()
                && nextDeletedDoc(docBase, liveDocs, docBase + chunkDocs) == docBase + chunkDocs) {
              final long chunkEnd = index.getStartPointer(docBase + chunkDocs);
              final long chunkLength = chunkEnd - vectorsStream.getFilePointer();

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        {// test header
          IndexInput in = d.openInput("out.bin", newIOContext(random()));
          // header = codec header | bitsPerValue | valueCount | format
          CodecUtil.checkHeader(in, PackedInts.CODEC_NAME, PackedInts.VERSION_START, PackedInts.VERSION_CURRENT); // codec header
          assertEquals(w.bitsPerValue, in.readVInt());
          assertEquals(valueCount, in.readVInt());
          assertEquals(w.getFormat().getId(), in.readVInt());
          assertEquals(startFp, in.getFilePointer());
          in.close();
        }

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        {// test header
          IndexInput in = d.openInput("out.bin", newIOContext(random()));
          // header = codec header | bitsPerValue | valueCount | format
          CodecUtil.checkHeader(in, PackedInts.CODEC_NAME, PackedInts.VERSION_START, PackedInts.VERSION_CURRENT); // codec header
          assertEquals(w.bitsPerValue, in.readVInt());
          assertEquals(valueCount, in.readVInt());
          assertEquals(w.getFormat().getId(), in.readVInt());
          assertEquals(startFp, in.getFilePointer());
          in.close();
        }

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          IndexInput in = d.openInput("out.bin", newIOContext(random()));
          // header = codec header | bitsPerValue | valueCount | format
          CodecUtil.checkHeader(in, PackedInts.CODEC_NAME, PackedInts.VERSION_START, PackedInts.VERSION_CURRENT); // codec header
          assertEquals(w.bitsPerValue, in.readVInt());
          assertEquals(valueCount, in.readVInt());
          assertEquals(w.getFormat().getId(), in.readVInt());
          assertEquals(startFp, in.getFilePointer());
          in.close();
        }


        {// test reader

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    try {
      CodecUtil.checkHeader(input, Lucene46FieldInfosFormat.CODEC_NAME, 
                                   Lucene46FieldInfosFormat.FORMAT_START, 
                                   Lucene46FieldInfosFormat.FORMAT_CURRENT);


      final int size = input.readVInt(); //read in the size
      FieldInfo infos[] = new FieldInfo[size];


      for (int i = 0; i < size; i++) {
        String name = input.readString();
        final int fieldNumber = input.readVInt();

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