Example usage for org.apache.mahout.math Varint readSignedVarLong

Introduction

In this page you can find the example usage for org.apache.mahout.math Varint readSignedVarLong.

Prototype

public static long readSignedVarLong(DataInput in) throws IOException 

Source Link

Usage

From source file:org.gpfvic.mahout.cf.taste.hadoop.EntityEntityWritable.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    aID = Varint.readSignedVarLong(in);
    bID = Varint.readSignedVarLong(in);
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.VectorAndPrefsWritable.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    VectorWritable writable = new VectorWritable();
    writable.readFields(in);//from www .  j a va  2s .  co  m
    vector = writable.get();
    int size = Varint.readUnsignedVarInt(in);
    userIDs = new ArrayList<>(size);
    values = new ArrayList<>(size);
    for (int i = 0; i < size; i++) {
        userIDs.add(Varint.readSignedVarLong(in));
        values.add(in.readFloat());
    }
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.VectorOrPrefWritable.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    boolean hasVector = in.readBoolean();
    if (hasVector) {
        VectorWritable writable = new VectorWritable();
        writable.readFields(in);//  w ww  .  j  a  va2s.  c o m
        set(writable.get());
    } else {
        long theUserID = Varint.readSignedVarLong(in);
        float theValue = in.readFloat();
        set(theUserID, theValue);
    }
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.RecommendedItemsWritable.java

License:Apache License

@Override
public void readFields(DataInput in) throws IOException {
    int size = in.readInt();
    recommended = new ArrayList<>(size);
    for (int i = 0; i < size; i++) {
        long itemID = Varint.readSignedVarLong(in);
        float value = in.readFloat();
        RecommendedItem recommendedItem = new GenericRecommendedItem(itemID, value);
        recommended.add(recommendedItem);
    }// w w w. j  a  v a  2s  .  c  o m
}

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