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Fastpath RoundRobinDispatcher.java

Folks,

Fastpath dispatches live requests in a round robin system, waiting for each agent in turn to either accept or reject the chat request. I want to change it so that it broadcasts the request simultaneously to all agents, but I have some confusion as to how this should be handled in the code (see below). First question is if I send the offer to every AgentSession up front, and the offer is accepted twice, if there is a way to distinguish which agent the accepted belongs to?

Thanks,

BEA

    public void dispatch(Offer offer) {
        // The time when the request should timeout
        long timeoutTime = System.currentTimeMillis() + info.getRequestTimeout();
        final Request request = offer.getRequest();
        boolean canBeInQueue = request instanceof UserRequest;
        Map<String,List<String>> map = request.getMetaData();
        String initialAgent = map.get("agent") == null || map.get("agent").isEmpty() ? null : map.get("agent").get(0);
        String ignoreAgent = map.get("ignore") == null || map.get("ignore").isEmpty() ? null : map.get("ignore").get(0);
        // Log debug trace
        logger.debug("RR - Dispatching request: " + request + " in queue: " + queue.getAddress());         // Send the offer to the best agent. While the offer has not been accepted send it to the
        // next best agent. If there aren't any agent available then skip this section and proceed
        // to overflow the current request
        if (!agentList.isEmpty()) {
            for (long timeRemaining = timeoutTime - System.currentTimeMillis();
                 !offer.isAccepted() && timeRemaining > 0 && !offer.isCancelled();
                 timeRemaining = timeoutTime - System.currentTimeMillis()) {                 try {
                    AgentSession session = getBestNextAgent(initialAgent, ignoreAgent, offer);
                    if (session == null && agentList.isEmpty()) {
                        // Stop looking for an agent since there are no more agent available
                         break;
                    }
                    else if (session == null || offer.isRejector(session)) {
                        initialAgent = null;
                        Thread.sleep(1000);
                    }
                    else {
                        // Recheck for changed maxchat setting
                        Workgroup workgroup = request.getWorkgroup();
                        if (session.getCurrentChats(workgroup) < session.getMaxChats(workgroup)) {
                            // Set the timeout of the offer based on the remaining time of the
                            // initial request and the default offer timeout
                            timeRemaining = timeoutTime - System.currentTimeMillis();
                            offer.setTimeout(timeRemaining < info.getOfferTimeout() ?
                                    timeRemaining : info.getOfferTimeout());                             // Make the offer and wait for a resolution to the offer
                            if (!request.sendOffer(session, queue)) {
                                // Log debug trace
                                logger.debug("RR - Offer for request: " + offer.getRequest() +
                                        " FAILED TO BE SENT to agent: " +
                                        session.getJID());
                                continue;
                            }
                            // Log debug trace
                            logger.debug("RR - Offer for request: " + offer.getRequest() + " SENT to agent: " +
                                    session.getJID());                             offer.waitForResolution();
                            // If the offer was accepted, we send out the invites
                            // and reset the offer
                            if (offer.isAccepted()) {
                                // Get the first agent that accepted the offer
                                AgentSession selectedAgent = offer.getAcceptedSessions().get(0);
                                // Log debug trace
                                logger.debug("RR - Agent: " + selectedAgent.getJID() +
                                        " ACCEPTED request: " +
                                        request);
                                // Create the room and send the invitations
                                offer.invite(selectedAgent);
                                // Notify the agents that accepted the offer that the offer process
                                // has finished
                                for (AgentSession agent : offer.getAcceptedSessions()) {
                                    agent.removeOffer(offer);
                                }
                                if (canBeInQueue) {
                                    // Remove the user from the queue since his request has
                                    // been accepted
                                    queue.removeRequest((UserRequest) request);
                                }
                            }
                        }
                        else {
                            // Log debug trace
                            logger.debug("RR - Selected agent: " + session.getJID() +
                                    " has reached max number of chats");
                        }
                    }
                }
                catch (Exception e) {
                    logger.error(e);
                }
            }
        }
        if (!offer.isAccepted() && !offer.isCancelled()) {
            // Calculate the maximum time limit for an unattended request before cancelling it
            long limit = request.getCreationTime().getTime() +
                    (info.getRequestTimeout() * (getOverflowTimes() + 1));
            if (limit - System.currentTimeMillis() <= 0 || !canBeInQueue) {
                // Log debug trace
                logger.debug("RR - Cancelling request that maxed out overflow limit or cannot be queued: " + request);
                // Cancel the request if it has overflowed 'n' times
                request.cancel(Request.CancelType.AGENT_NOT_FOUND);
            }
            else {
                // Overflow if request timed out and was not dispatched and max number of overflows
                // has not been reached yet
                overflow(offer);
                // If there is no other queue to overflow then cancel the request
                if (!offer.isAccepted() && !offer.isCancelled()) {
                    // Log debug trace
                    logger.debug("RR - Cancelling request that didn't overflow: " + request);
                    request.cancel(Request.CancelType.AGENT_NOT_FOUND);
                }
            }
        }
    }