Java Code Examples for org.springframework.messaging.simp.stomp.StompHeaderAccessor#getDestination()

@SuppressWarnings("unchecked")
private void handleMessageFrame(StompHeaderAccessor stompHeaderAccessor, Message<byte[]> stompMsg) {
    String subscriptionId = stompHeaderAccessor.getFirstNativeHeader("subscription-id");

    // custom properties, eventId is in native header
    Map<String, String> extensions = new HashMap<>();
    for (Map.Entry<String, List<String>> entry : ((Map<String, List<String>>) stompMsg.getHeaders().get(NativeMessageHeaderAccessor.NATIVE_HEADERS)).entrySet()) {
        if (entry.getKey().startsWith("weevent-")) {
            extensions.put(entry.getKey(), entry.getValue().get(0));
        }
    }

    WeEvent event = new WeEvent(stompHeaderAccessor.getDestination(), stompMsg.getPayload(), extensions);
    event.setEventId(stompHeaderAccessor.getFirstNativeHeader("eventId"));
    log.info("received: {}", event);

    if (this.subscription2EventCache.containsKey(subscriptionId)) {
        IWeEventClient.EventListener listener = this.subscription2EventCache.get(subscriptionId).getSecond();
        listener.onEvent(event);
        // update the cache eventId
        this.subscription2EventCache.get(subscriptionId).getFirst().setOffset(event.getEventId());
    }
}
 

private void handleUnsubscribeMessage(StompHeaderAccessor stompHeaderAccessor, WebSocketSession session) {
    String simpDestination = stompHeaderAccessor.getDestination();
    String headerIdStr = stompHeaderAccessor.getFirstNativeHeader(StompHeaderAccessor.STOMP_ID_HEADER);

    try {
        boolean result = handleUnSubscribe(session, headerIdStr);

        // send response
        StompHeaderAccessor accessor;
        if (result) {
            accessor = StompHeaderAccessor.create(StompCommand.RECEIPT);
            accessor.setDestination(simpDestination);
        } else {
            accessor = StompHeaderAccessor.create(StompCommand.ERROR);
        }
        // a unique identifier for that message and a subscription header matching the identifier of the subscription that is receiving the message.
        accessor.setReceiptId(headerIdStr);
        sendSimpleMessage(session, accessor);
    } catch (BrokerException e) {
        handleErrorMessage(session, e, headerIdStr);
    }
}
 

private void sendHistoryToNewSubscriber(AbstractSubProtocolEvent ev) {
    Message<byte[]> msg = ev.getMessage();
    StompHeaderAccessor ha = StompHeaderAccessor.wrap(msg);
    String pattern = ha.getDestination();
    if(!pattern.startsWith(PREFIX)) {
        // we must send only to appropriate paths
        return;
    }
    MessageConverter messageConverter = this.simpMessagingTemplate.getMessageConverter();

    for(BusData data: buses.values()) {
        String dest = getDestination(data.getId());
        if(!this.pathMatcher.match(pattern, dest)) {
            continue;
        }
        for(Object obj: data.getEvents()) {
            StompHeaderAccessor mha = Stomp.createHeaders(ha.getSessionId(), ha.getSubscriptionId());
            mha.setDestination(dest);
            Message<?> message = messageConverter.toMessage(obj, mha.getMessageHeaders());
            clientChannel.send(message);
        }
    }
}
 

private void handleSendMessage(StompHeaderAccessor stompHeaderAccessor, Message<byte[]> msg, WebSocketSession session) {
    Map<String, String> extensions = this.getWeEventExtend(msg);
    // group id
    String groupId = stompHeaderAccessor.getFirstNativeHeader(WeEventConstants.EVENT_GROUP_ID);
    if (StringUtils.isBlank(groupId)) {
        groupId = "";
    }

    try {
        String destination = stompHeaderAccessor.getDestination();

        // publish event
        SendResult sendResult = this.iproducer.publish(new WeEvent(destination, msg.getPayload(), extensions), groupId, this.fiscoConfig.getWeb3sdkTimeout());

        // send response
        StompHeaderAccessor accessor;
        if (sendResult.getStatus().equals(SendResult.SendResultStatus.SUCCESS)) {
            accessor = StompHeaderAccessor.create(StompCommand.RECEIPT);
            accessor.setDestination(destination);
            accessor.setNativeHeader(WeEventConstants.EXTENSIONS_EVENT_ID, sendResult.getEventId());
        } else {
            accessor = StompHeaderAccessor.create(StompCommand.ERROR);
            accessor.setMessage(sendResult.toString());
        }
        accessor.setReceiptId(stompHeaderAccessor.getReceipt());

        sendSimpleMessage(session, accessor);
    } catch (BrokerException e) {
        handleErrorMessage(session, e, stompHeaderAccessor.getReceipt());
    }
}
 

private void handleDefaultMessage(StompHeaderAccessor stompHeaderAccessor, WebSocketSession session) {
    String simpDestination = stompHeaderAccessor.getDestination();
    String headerIdStr = stompHeaderAccessor.getFirstNativeHeader(StompHeaderAccessor.STOMP_ID_HEADER);

    // send response
    StompHeaderAccessor accessor = StompHeaderAccessor.create(StompCommand.ERROR);
    accessor.setDestination(simpDestination);
    accessor.setMessage("NOT SUPPORT COMMAND");
    accessor.setReceiptId(headerIdStr);
    // a unique identifier for that message and a subscription header matching the identifier of the subscription that is receiving the message.
    sendSimpleMessage(session, accessor);

    // follow protocol 1.2 to close connection
    this.closeSession(session);
}
 

private void handleSubscribeMessage(StompHeaderAccessor stompHeaderAccessor, WebSocketSession session) {
    // subscribe command id
    String headerIdStr = stompHeaderAccessor.getFirstNativeHeader(StompHeaderAccessor.STOMP_ID_HEADER);

    // group
    String groupId = stompHeaderAccessor.getFirstNativeHeader(WeEventConstants.EVENT_GROUP_ID);
    if (StringUtils.isBlank(groupId)) {
        groupId = "";
    }

    // check if there hasn't the event, need use the last id
    String subEventId = stompHeaderAccessor.getFirstNativeHeader(WeEventConstants.EXTENSIONS_EVENT_ID);
    if (StringUtils.isBlank(subEventId)) {
        subEventId = WeEvent.OFFSET_LAST;
    }

    // subscription id
    String continueSubscriptionIdStr = stompHeaderAccessor.getFirstNativeHeader(WeEvent.WeEvent_SubscriptionId);
    if (StringUtils.isBlank(continueSubscriptionIdStr)) {
        continueSubscriptionIdStr = "";
    }

    // tag
    String tag = stompHeaderAccessor.getFirstNativeHeader(WeEvent.WeEvent_TAG);
    if (StringUtils.isBlank(tag)) {
        tag = "";
    }

    // is ephemeral
    boolean ephemeral = stompHeaderAccessor.getFirstNativeHeader(WeEvent.WeEvent_EPHEMERAL) != null;

    try {
        String simpDestination = stompHeaderAccessor.getDestination();
        String subscriptionId = handleSubscribe(session,
                simpDestination,
                groupId,
                headerIdStr,
                subEventId,
                continueSubscriptionIdStr,
                tag,
                ephemeral);

        // send response
        StompHeaderAccessor accessor = StompHeaderAccessor.create(StompCommand.RECEIPT);
        accessor.setDestination(simpDestination);
        // a unique identifier for that message and a subscription header matching the identifier of the subscription that is receiving the message.
        accessor.setReceiptId(headerIdStr);
        accessor.setSubscriptionId(subscriptionId);
        accessor.setNativeHeader("subscription-id", subscriptionId);
        sendSimpleMessage(session, accessor);
    } catch (BrokerException e) {
        handleErrorMessage(session, e, headerIdStr);
    }
}