public void eventSunk(ChannelPipeline pipeline, ChannelEvent e) throws Exception { OioDatagramChannel channel = (OioDatagramChannel) e.getChannel(); ChannelFuture future = e.getFuture(); if (e instanceof ChannelStateEvent) { ChannelStateEvent stateEvent = (ChannelStateEvent) e; ChannelState state = stateEvent.getState(); Object value = stateEvent.getValue(); switch (state) { case OPEN: if (Boolean.FALSE.equals(value)) { OioDatagramWorker.close(channel, future); } break; case BOUND: if (value != null) { bind(channel, future, (SocketAddress) value); } else { OioDatagramWorker.close(channel, future); } break; case CONNECTED: if (value != null) { connect(channel, future, (SocketAddress) value); } else { OioDatagramWorker.disconnect(channel, future); } break; case INTEREST_OPS: OioDatagramWorker.setInterestOps(channel, future, ((Integer) value).intValue()); break; } } else if (e instanceof MessageEvent) { MessageEvent evt = (MessageEvent) e; OioDatagramWorker.write(channel, future, evt.getMessage(), evt.getRemoteAddress()); } }