Example usage for org.apache.lucene.store DataInput readInt

Introduction

In this page you can find the example usage for org.apache.lucene.store DataInput readInt.

Prototype

public int readInt() throws IOException 

Source Link

Document

Reads four bytes and returns an int.

Usage

From source file:com.browseengine.bobo.geosearch.merge.impl.BufferedGeoMerger.java

License:Apache License

/**
 * /*from w w  w.j a v  a 2 s  . c  o  m*/
 * @param directory
 * @param geoFileName
 * @param fieldNameFilterConverter
 * @return true iff successful
 * @throws IOException
 */
protected boolean loadFieldNameFilterConverter(Directory directory, String geoFileName,
        IFieldNameFilterConverter fieldNameFilterConverter) throws IOException {
    try {
        DataInput input = directory.openInput(geoFileName);
        input.readVInt(); //read version
        input.readInt(); //throw out tree position
        input.readVInt(); //throw out tree size
        input.readVInt(); //throw out record length

        fieldNameFilterConverter.loadFromInput(input);

        return true;
    } catch (FileNotFoundException e) {
        LOGGER.warn("suppressing missing geo file pair, treating as no field names: " + e);
        return false;
    }
}

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From source file:com.lucure.core.codec.CompressingStoredFieldsReader.java

License:Apache License

private static void readField(DataInput in, RestrictedStoredFieldVisitor visitor, FieldInfo info, int bits,
        FieldVisibility fieldVisibility) throws IOException {

    switch (bits & TYPE_MASK) {
    case BYTE_ARR:
        int length = in.readVInt();
        byte[] data = new byte[length];
        in.readBytes(data, 0, length);/* w ww .j  a  v a 2  s .c om*/
        visitor.binaryField(info, data, fieldVisibility);
        break;
    case STRING:
        length = in.readVInt();
        data = new byte[length];
        in.readBytes(data, 0, length);
        visitor.stringField(info, new String(data, IOUtils.CHARSET_UTF_8), fieldVisibility);
        break;
    case NUMERIC_INT:
        int intValue = in.readInt();
        visitor.intField(info, intValue, fieldVisibility);
        break;
    case NUMERIC_FLOAT:
        float floatValue = Float.intBitsToFloat(in.readInt());
        visitor.floatField(info, floatValue, fieldVisibility);
        break;
    case NUMERIC_LONG:
        long longValue = in.readLong();
        visitor.longField(info, longValue, fieldVisibility);
        break;
    case NUMERIC_DOUBLE:
        double doubleValue = Double.longBitsToDouble(in.readLong());
        visitor.doubleField(info, doubleValue, fieldVisibility);
        break;
    default:
        throw new AssertionError("Unknown type flag: " + Integer.toHexString(bits));
    }
}

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From source file:com.lucure.core.codec.CompressingStoredFieldsReader.java

License:Apache License

private static void skipField(DataInput in, int bits, FieldVisibility cv) throws IOException {
    switch (bits & TYPE_MASK) {
    case BYTE_ARR:
    case STRING:/*from w  ww .j  a v a  2 s  . c o m*/
        final int length = in.readVInt();
        in.skipBytes(length);
        break;
    case NUMERIC_INT:
    case NUMERIC_FLOAT:
        in.readInt();
        break;
    case NUMERIC_LONG:
    case NUMERIC_DOUBLE:
        in.readLong();
        break;
    default:
        throw new AssertionError("Unknown type flag: " + Integer.toHexString(bits));
    }
}

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From source file:org.elasticsearch.common.util.BloomFilter.java

License:Apache License

public static BloomFilter deserialize(DataInput in) throws IOException {
    int version = in.readInt(); // we do nothing with this now..., defaults to 0

    int numLongs = in.readInt();
    long[] data = new long[numLongs];
    for (int i = 0; i < numLongs; i++) {
        data[i] = in.readLong();/*from  ww  w. j a  va2 s  .c  om*/
    }

    int numberOfHashFunctions = in.readInt();

    int hashType = in.readInt(); // again, nothing to do now...

    return new BloomFilter(new BitArray(data), numberOfHashFunctions);
}

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From source file:org.elasticsearch.index.translog.Checkpoint.java

License:Apache License

Checkpoint(DataInput in) throws IOException {
    offset = in.readLong();
    numOps = in.readInt();
    generation = in.readLong();
}

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