/*
* Copyright 2008-2009 LinkedIn, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package voldemort.serialization;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Date;
import voldemort.client.protocol.pb.ProtoUtils;
import voldemort.store.slop.Slop;
import voldemort.utils.ByteArray;
/**
* A Serializer for writing Slops
*
*
*/
public class SlopSerializer implements Serializer<Slop> {
public byte[] toBytes(Slop slop) {
ByteArrayOutputStream byteOutput = new ByteArrayOutputStream();
DataOutputStream data = new DataOutputStream(byteOutput);
try {
VSlopProto.Slop.Builder builder = VSlopProto.Slop.newBuilder()
.setStore(slop.getStoreName())
.setOperation(slop.getOperation().toString())
.setKey(ProtoUtils.encodeBytes(slop.getKey()))
.setNodeId(slop.getNodeId())
.setArrived(slop.getArrived().getTime());
if (slop.getValue() != null)
builder.setValue(ProtoUtils.encodeBytes(new ByteArray(slop.getValue())));
ProtoUtils.writeMessage(data, builder.build());
return byteOutput.toByteArray();
} catch(IOException e) {
throw new SerializationException(e);
}
}
public Slop toObject(byte[] bytes) {
DataInputStream input = new DataInputStream(new ByteArrayInputStream(bytes));
try {
VSlopProto.Slop proto = ProtoUtils.readToBuilder(input, VSlopProto.Slop.newBuilder())
.build();
String storeName = proto.getStore();
Slop.Operation op = Slop.Operation.valueOf(proto.getOperation());
byte[] key = ProtoUtils.decodeBytes(proto.getKey()).get();
byte[] value = null;
if (proto.hasValue())
value = ProtoUtils.decodeBytes(proto.getValue()).get();
int nodeId = proto.getNodeId();
Date arrived = new Date(proto.getArrived());
return new Slop(storeName, op, key, value, nodeId, arrived);
} catch(IOException e) {
throw new SerializationException(e);
}
}
}