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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* Class representing a byte field in the result set
*
*/
package com.yahoo.prelude.fastsearch;
import java.nio.ByteBuffer;
import com.yahoo.search.result.NanNumber;
import com.yahoo.data.access.Inspector;
/**
* @author <a href="mailto:borud@yahoo-inc.com">Bj\u00f8rn Borud</a>
*/
public class ByteField extends DocsumField {
static final byte EMPTY_VALUE = Byte.MIN_VALUE;
public ByteField(String name) {
super(name);
}
private Object convert(byte value) {
if (value == EMPTY_VALUE) {
return NanNumber.NaN;
} else {
return Byte.valueOf(value);
}
}
public Object decode(ByteBuffer b) {
return convert(b.get());
}
public Object decode(ByteBuffer b, FastHit hit) {
Object field = decode(b);
hit.setField(name, field);
return field;
}
public int getLength(ByteBuffer b) {
int offset = b.position();
final int bytelength = Byte.SIZE >> 3;
b.position(offset + bytelength);
return bytelength;
}
public Object convert(Inspector value) {
return convert((byte)value.asLong(EMPTY_VALUE));
}
}
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