@Override
public void writeRequested(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
if (e.getMessage() instanceof KafkaRequest) {
ctx.setAttachment(((KafkaRequest) e.getMessage()).getResponseHandler());
}
super.writeRequested(ctx, e);
}
@Override
public synchronized void writeRequested(ChannelHandlerContext ctx, MessageEvent e)
throws Exception {
if (isFoundCluster && !headerSent) {
sendHeader(ctx);
}
super.writeRequested(ctx, e);
}
/**
* {@inheritDoc} Down-casts the received downstream event into more meaningful sub-type event and
* calls an appropriate handler method with the down-casted event.
*/
public void handleDownstream(ChannelHandlerContext ctx, ChannelEvent e) throws Exception {
if (e instanceof MessageEvent) {
writeRequested(ctx, (MessageEvent) e);
} else if (e instanceof ChannelStateEvent) {
ChannelStateEvent evt = (ChannelStateEvent) e;
switch (evt.getState()) {
case OPEN:
if (!Boolean.TRUE.equals(evt.getValue())) {
closeRequested(ctx, evt);
}
break;
case BOUND:
if (evt.getValue() != null) {
bindRequested(ctx, evt);
} else {
unbindRequested(ctx, evt);
}
break;
case CONNECTED:
if (evt.getValue() != null) {
connectRequested(ctx, evt);
} else {
disconnectRequested(ctx, evt);
}
break;
case INTEREST_OPS:
setInterestOpsRequested(ctx, evt);
break;
default:
ctx.sendDownstream(e);
}
} else {
ctx.sendDownstream(e);
}
}
