KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > activemq > transport > multicast > MulticastDatagramHeaderMarshaller


1 /**
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one or more
4  * contributor license agreements. See the NOTICE file distributed with
5  * this work for additional information regarding copyright ownership.
6  * The ASF licenses this file to You under the Apache License, Version 2.0
7  * (the "License"); you may not use this file except in compliance with
8  * the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.activemq.transport.multicast;
19
20 import org.apache.activemq.command.Command;
21 import org.apache.activemq.command.Endpoint;
22 import org.apache.activemq.transport.udp.DatagramEndpoint;
23 import org.apache.activemq.transport.udp.DatagramHeaderMarshaller;
24
25 import java.net.SocketAddress JavaDoc;
26 import java.nio.ByteBuffer JavaDoc;
27
28 /**
29  *
30  * @version $Revision: 426366 $
31  */
32 public class MulticastDatagramHeaderMarshaller extends DatagramHeaderMarshaller {
33
34     private final String JavaDoc localUri;
35     private final byte[] localUriAsBytes;
36
37     public MulticastDatagramHeaderMarshaller(String JavaDoc localUri) {
38         this.localUri = localUri;
39         this.localUriAsBytes = localUri.getBytes();
40     }
41
42     public Endpoint createEndpoint(ByteBuffer JavaDoc readBuffer, SocketAddress JavaDoc address) {
43         int size = readBuffer.getInt();
44         byte[] data = new byte[size];
45         readBuffer.get(data);
46         return new DatagramEndpoint(new String JavaDoc(data), address);
47     }
48
49     public void writeHeader(Command command, ByteBuffer JavaDoc writeBuffer) {
50         writeBuffer.putInt(localUriAsBytes.length);
51         writeBuffer.put(localUriAsBytes);
52         super.writeHeader(command, writeBuffer);
53     }
54
55 }
56
Popular Tags