protected void deliver(Message msg, Event evt, SequencerHeader hdr) {
Address sender = msg.getSrc();
if (sender == null) {
if (log.isErrorEnabled())
log.error(local_addr + ": sender is null, cannot deliver " + "::" + hdr.getSeqno());
return;
}
long msg_seqno = hdr.getSeqno();
if (sender.equals(local_addr)) {
forward_table.remove(msg_seqno);
if (hdr.flush_ack) {
ack_promise.setResult(msg_seqno);
if (ack_mode && !flushing && threshold > 0 && ++num_acks >= threshold) {
ack_mode = false;
num_acks = 0;
}
}
}
if (!canDeliver(sender, msg_seqno)) {
if (log.isWarnEnabled())
log.warn(local_addr + ": dropped duplicate message " + sender + "::" + msg_seqno);
return;
}
if (log.isTraceEnabled()) log.trace(local_addr + ": delivering " + sender + "::" + msg_seqno);
up_prot.up(evt);
delivered_bcasts++;
}
/**
* Unmarshal the original message (in the payload) and then pass it up (unless already delivered)
*
* @param msg
*/
protected void unwrapAndDeliver(final Message msg, boolean flush_ack) {
try {
Message msg_to_deliver =
Util.streamableFromBuffer(
Message.class, msg.getRawBuffer(), msg.getOffset(), msg.getLength());
SequencerHeader hdr = (SequencerHeader) msg_to_deliver.getHeader(this.id);
if (flush_ack) hdr.flush_ack = true;
deliver(msg_to_deliver, new Event(Event.MSG, msg_to_deliver), hdr);
} catch (Exception ex) {
log.error(Util.getMessage("FailureUnmarshallingBuffer"), ex);
}
}
protected void broadcast(
final Message msg, boolean copy, Address original_sender, long seqno, boolean resend) {
Message bcast_msg = null;
if (!copy) {
bcast_msg = msg; // no need to add a header, message already has one
} else {
SequencerHeader new_hdr = new SequencerHeader(SequencerHeader.WRAPPED_BCAST, seqno);
bcast_msg =
new Message(null, msg.getRawBuffer(), msg.getOffset(), msg.getLength())
.putHeader(this.id, new_hdr);
if (resend) {
new_hdr.flush_ack = true;
bcast_msg.setFlag(Message.Flag.DONT_BUNDLE);
}
}
if (log.isTraceEnabled())
log.trace(local_addr + ": broadcasting " + original_sender + "::" + seqno);
down_prot.down(new Event(Event.MSG, bcast_msg));
bcast_msgs++;
}