DatagramChannelFactoryImpl (mod_cluster (parent) 2.0.1.Final API)

java.lang.Object
- org.jboss.modcluster.advertise.impl.DatagramChannelFactoryImpl

All Implemented Interfaces:

DatagramChannelFactory
```
public class DatagramChannelFactoryImpl
extends Object
implements DatagramChannelFactory
```
On Linux-like systems, we attempt to avoid cross-talk problem by binding the DatagramChannel to the multicast address, if possible. If not possible, default to binding only to the port. See {@link JGRP-777}.
On Windows-like systems, we do not attempt to bind the socket to the multicast address, we only bind to the port.
On BSD-like systems (e.g. OS X) we also need to bind the DatagramChannel to the multicast address. If httpd with mod_proxy_cluster (which is bound to the multicast address) is running on the same system, the AdvertiseListener would not be able to bind to any address (i.e. only binding to the port without the address) because JDK does not expose SO_REUSEPORT as a socket option which would be required for this to work. This is to be supported since JDK 9. See {@link JDK-6432031}.

Author:

Paul Ferraro, Radoslav Husar

- Constructor Summary
  
  Constructors
  Constructor Description
  
  DatagramChannelFactoryImpl()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  DatagramChannel createDatagramChannel(InetSocketAddress multicastSocketAddress)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- DatagramChannelFactoryImpl
```
public DatagramChannelFactoryImpl()
```

Method Detail

createDatagramChannel

public DatagramChannel createDatagramChannel(InetSocketAddress multicastSocketAddress)
                                      throws IOException

Specified by:: createDatagramChannel in interface DatagramChannelFactory
Throws:: IOException