/**
* 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.transport.reliable;
import java.io.IOException;
import java.net.DatagramSocket;
import java.net.SocketAddress;
import org.apache.activemq.openwire.OpenWireFormat;
import org.apache.activemq.transport.udp.CommandDatagramSocket;
import org.apache.activemq.transport.udp.DatagramHeaderMarshaller;
import org.apache.activemq.transport.udp.UdpTransport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
*/
public class UnreliableCommandDatagramSocket extends CommandDatagramSocket {
private static final Logger LOG = LoggerFactory.getLogger(UnreliableCommandDatagramSocket.class);
private DropCommandStrategy dropCommandStrategy;
public UnreliableCommandDatagramSocket(UdpTransport transport, OpenWireFormat wireFormat, int datagramSize, SocketAddress targetAddress,
DatagramHeaderMarshaller headerMarshaller, DatagramSocket channel, DropCommandStrategy strategy) {
super(transport, wireFormat, datagramSize, targetAddress, headerMarshaller, channel);
this.dropCommandStrategy = strategy;
}
protected void sendWriteBuffer(int commandId, SocketAddress address, byte[] data, boolean redelivery) throws IOException {
if (dropCommandStrategy.shouldDropCommand(commandId, address, redelivery)) {
LOG.info("Dropping datagram with command: " + commandId);
// lets still add it to the replay buffer though!
ReplayBuffer bufferCache = getReplayBuffer();
if (bufferCache != null && !redelivery) {
bufferCache.addBuffer(commandId, data);
}
} else {
super.sendWriteBuffer(commandId, address, data, redelivery);
}
}
}