| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.activemq.kaha; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import org.apache.activemq.command.Message; |
| import org.apache.activemq.util.ByteSequence; |
| import org.apache.activemq.wireformat.WireFormat; |
| |
| /** |
| * Implementation of a Marshaller for MessageIds |
| * |
| * |
| */ |
| public class MessageMarshaller implements Marshaller<Message> { |
| |
| private WireFormat wireFormat; |
| |
| /** |
| * Constructor |
| * |
| * @param wireFormat |
| */ |
| public MessageMarshaller(WireFormat wireFormat) { |
| this.wireFormat = wireFormat; |
| } |
| |
| /** |
| * Write the payload of this entry to the RawContainer |
| * |
| * @param message |
| * @param dataOut |
| * @throws IOException |
| */ |
| public void writePayload(Message message, DataOutput dataOut) throws IOException { |
| ByteSequence packet = wireFormat.marshal(message); |
| dataOut.writeInt(packet.length); |
| dataOut.write(packet.data, packet.offset, packet.length); |
| } |
| |
| /** |
| * Read the entry from the RawContainer |
| * |
| * @param dataIn |
| * @return unmarshalled object |
| * @throws IOException |
| */ |
| public Message readPayload(DataInput dataIn) throws IOException { |
| int size = dataIn.readInt(); |
| byte[] data = new byte[size]; |
| dataIn.readFully(data); |
| return (Message)wireFormat.unmarshal(new ByteSequence(data)); |
| } |
| } |