org.apache.hadoop.hive.ql.exec.vector.expressions.CastFloatToString Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.hadoop.hive.ql.exec.vector.expressions;
import java.nio.charset.StandardCharsets;
import org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector;
public class CastFloatToString extends DoubleToStringUnaryUDF {
private static final long serialVersionUID = 1L;
public CastFloatToString() {
super();
}
public CastFloatToString(int inputColumn, int outputColumnNum) {
super(inputColumn, outputColumnNum);
}
// The assign method will be overridden for CHAR and VARCHAR.
protected void assign(BytesColumnVector outV, int i, byte[] bytes, int length) {
outV.setVal(i, bytes, 0, length);
}
@Override
protected void func(BytesColumnVector outV, double[] vector, int i) {
String string = String.valueOf((float) vector[i]);
byte[] bytes = string.getBytes(StandardCharsets.UTF_8);
assign(outV, i, bytes, bytes.length);
}
}