/*
* Copyright (C) 2014 The Async HBase Authors. All rights reserved.
* This file is part of Async HBase.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the StumbleUpon nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package org.hbase.async;
import com.google.protobuf.ByteString;
import org.jboss.netty.buffer.ChannelBuffer;
import org.hbase.async.generated.ComparatorPB;
/**
* A binary comparator used in comparison filters. Compares byte arrays
* lexicographically.
* @since 1.6
*/
public final class BinaryComparator extends FilterComparator {
private static final byte[] NAME =
Bytes.UTF8("org.apache.hadoop.hbase.filter.BinaryComparator");
private static final byte CODE = 47;
private final byte[] value;
public BinaryComparator(byte[] value) {
this.value = value;
}
public byte[] value() {
return value.clone();
}
@Override
byte[] name() {
return NAME;
}
@Override
ComparatorPB.Comparator toProtobuf() {
ByteString byte_string = ComparatorPB
.BinaryComparator
.newBuilder()
.setComparable(
ComparatorPB
.ByteArrayComparable
.newBuilder()
.setValue(Bytes.wrap(value)))
.build()
.toByteString();
return super.toProtobuf(byte_string);
}
@Override
void serializeOld(ChannelBuffer buf) {
super.serializeOld(buf); // super.predictSerializedSize()
// Write class code
buf.writeByte(CODE); // 1
// Write value
HBaseRpc.writeByteArray(buf, value); // 3 + value.length
}
@Override
int predictSerializedSize() {
return 1 + 3 + value.length;
}
@Override
public String toString() {
return String.format("%s(%s)",
getClass().getSimpleName(),
Bytes.pretty(value));
}
}