How to use

initialize

method

in

org.jboss.netty.handler.timeout.IdleStateHandler

@Override
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e)
    throws Exception {
  // This method will be invoked only if this handler was added
  // before channelOpen event is fired.  If a user adds this handler
  // after the channelOpen event, initialize() will be called by beforeAdd().
  initialize(ctx);
  ctx.sendUpstream(e);
}

public void beforeAdd(ChannelHandlerContext ctx) throws Exception {
  if (ctx.getPipeline().isAttached()) {
    // channelOpen event has been fired already, which means
    // this.channelOpen() will not be invoked.
    // We have to initialize here instead.
    initialize(ctx);
  } else {
    // channelOpen event has not been fired yet.
    // this.channelOpen() will be invoked and initialization will occur there.
  }
}