Example usage for org.apache.hadoop.util.bloom Filter and

Introduction

In this page you can find the example usage for org.apache.hadoop.util.bloom Filter and.

Prototype

public abstract void and(Filter filter);

Source Link

Document

Peforms a logical AND between this filter and a specified filter.

Usage

From source file:brickhouse.udf.bloom.BloomAndUDF.java

License:Apache License

public String evaluate(String bloom1Str, String bloom2Str) throws IOException {
    Filter bloom1 = BloomFactory.GetBloomFilter(bloom1Str);
    Filter bloom2 = BloomFactory.GetBloomFilter(bloom2Str);

    bloom1.and(bloom2);

    return BloomFactory.WriteBloomToString(bloom1);
}

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From source file:hivemall.sketch.bloom.BloomAndUDF.java

License:Apache License

@Nullable
public Text evaluate(@Nullable Text bloom1Str, @Nullable Text bloom2Str) throws HiveException {
    if (bloom1Str == null || bloom2Str == null) {
        return null;
    }/* w ww  .jav a 2  s. c  o m*/

    final Filter bloom1;
    final Filter bloom2;
    try {
        bloom1 = BloomFilterUtils.deserialize(bloom1Str, new DynamicBloomFilter());
        bloom2 = BloomFilterUtils.deserialize(bloom2Str, new DynamicBloomFilter());
    } catch (IOException e) {
        throw new HiveException(e);
    }

    bloom1.and(bloom2);

    try {
        return BloomFilterUtils.serialize(bloom1, new Text());
    } catch (IOException e) {
        throw new HiveException(e);
    }
}

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