001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.activemq.transport.multicast; 018 019import java.net.SocketAddress; 020import java.nio.ByteBuffer; 021 022import org.apache.activemq.command.Command; 023import org.apache.activemq.command.Endpoint; 024import org.apache.activemq.transport.udp.DatagramEndpoint; 025import org.apache.activemq.transport.udp.DatagramHeaderMarshaller; 026 027/** 028 * 029 * 030 */ 031public class MulticastDatagramHeaderMarshaller extends DatagramHeaderMarshaller { 032 033 private final byte[] localUriAsBytes; 034 035 public MulticastDatagramHeaderMarshaller(String localUri) { 036 this.localUriAsBytes = localUri.getBytes(); 037 } 038 039 public Endpoint createEndpoint(ByteBuffer readBuffer, SocketAddress address) { 040 int size = readBuffer.getInt(); 041 byte[] data = new byte[size]; 042 readBuffer.get(data); 043 return new DatagramEndpoint(new String(data), address); 044 } 045 046 public void writeHeader(Command command, ByteBuffer writeBuffer) { 047 writeBuffer.putInt(localUriAsBytes.length); 048 writeBuffer.put(localUriAsBytes); 049 super.writeHeader(command, writeBuffer); 050 } 051 052}