Examples with MessageHandler org.apache.cloudstack.framework.messagebus.MessageHandler used on opensource projects

Example 1 with MessageHandler

use of org.apache.cloudstack.framework.messagebus.MessageHandler in project cloudstack by apache.

the class ServerEventHandlerImpl method defaultMessageHandler.

@MessageHandler(topic = ".*")
public void defaultMessageHandler(String subject, String topic, Object args) {
    s_logger.info("DB Event Received - topic: " + topic + "; subject: " + subject);
    org.apache.cloudstack.framework.events.Event event = (org.apache.cloudstack.framework.events.Event) args;
    /* Method name should be on<ClassName><Operation> for example: onDomainCreate */
    Method method = null;
    try {
        /* Only create event needs special implementation */
        if (event.getEventType().contains("CREATE")) {
            String methodName = "on" + event.getResourceType() + "Create";
            method = _methodMap.get(methodName);
            if (method == null) {
                defaultCreateHandler(subject, topic, event);
            } else {
                method.invoke(this, subject, topic, event);
            }
        } else if (event.getEventType().contains("DELETE")) {
            defaultDeleteHandler(subject, topic, event);
        } else {
            defaultHandler(subject, topic, event);
        }
    } catch (Exception e) {
        s_logger.debug(e);
    }
}

Example 2 with MessageHandler

use of org.apache.cloudstack.framework.messagebus.MessageHandler in project cloudstack by apache.

the class ApiServer method handleAsyncJobPublishEvent.

@MessageHandler(topic = AsyncJob.Topics.JOB_EVENT_PUBLISH)
public void handleAsyncJobPublishEvent(String subject, String senderAddress, Object args) {
    assert (args != null);
    @SuppressWarnings("unchecked") Pair<AsyncJob, String> eventInfo = (Pair<AsyncJob, String>) args;
    AsyncJob job = eventInfo.first();
    String jobEvent = eventInfo.second();
    if (s_logger.isTraceEnabled())
        s_logger.trace("Handle asyjob publish event " + jobEvent);
    EventBus eventBus = null;
    try {
        eventBus = ComponentContext.getComponent(EventBus.class);
    } catch (NoSuchBeanDefinitionException nbe) {
        // no provider is configured to provide events bus, so just return
        return;
    }
    if (!job.getDispatcher().equalsIgnoreCase("ApiAsyncJobDispatcher")) {
        return;
    }
    User userJobOwner = accountMgr.getUserIncludingRemoved(job.getUserId());
    Account jobOwner = accountMgr.getAccount(userJobOwner.getAccountId());
    // Get the event type from the cmdInfo json string
    String info = job.getCmdInfo();
    String cmdEventType = "unknown";
    Map<String, Object> cmdInfoObj = new HashMap<String, Object>();
    if (info != null) {
        Type type = new TypeToken<Map<String, String>>() {
        }.getType();
        Map<String, String> cmdInfo = ApiGsonHelper.getBuilder().create().fromJson(info, type);
        cmdInfoObj.putAll(cmdInfo);
        String eventTypeObj = cmdInfo.get("cmdEventType");
        if (eventTypeObj != null) {
            cmdEventType = eventTypeObj;
            if (s_logger.isDebugEnabled())
                s_logger.debug("Retrieved cmdEventType from job info: " + cmdEventType);
        } else {
            if (s_logger.isDebugEnabled())
                s_logger.debug("Unable to locate cmdEventType marker in job info. publish as unknown event");
        }
        String contextDetails = cmdInfo.get("ctxDetails");
        if (contextDetails != null) {
            Type objectMapType = new TypeToken<Map<Object, Object>>() {
            }.getType();
            Map<Object, Object> ctxDetails = ApiGsonHelper.getBuilder().create().fromJson(contextDetails, objectMapType);
            cmdInfoObj.put("ctxDetails", ctxDetails);
        }
    }
    // For some reason, the instanceType / instanceId are not abstract, which means we may get null values.
    String instanceType = job.getInstanceType() != null ? job.getInstanceType() : "unknown";
    String instanceUuid = job.getInstanceId() != null ? ApiDBUtils.findJobInstanceUuid(job) : "";
    org.apache.cloudstack.framework.events.Event event = new org.apache.cloudstack.framework.events.Event("management-server", EventCategory.ASYNC_JOB_CHANGE_EVENT.getName(), jobEvent, instanceType, instanceUuid);
    Map<String, Object> eventDescription = new HashMap<String, Object>();
    eventDescription.put("command", job.getCmd());
    eventDescription.put("user", userJobOwner.getUuid());
    eventDescription.put("account", jobOwner.getUuid());
    eventDescription.put("processStatus", "" + job.getProcessStatus());
    eventDescription.put("resultCode", "" + job.getResultCode());
    eventDescription.put("instanceUuid", instanceUuid);
    eventDescription.put("instanceType", instanceType);
    eventDescription.put("commandEventType", cmdEventType);
    eventDescription.put("jobId", job.getUuid());
    eventDescription.put("jobResult", ApiSerializerHelper.fromSerializedStringToMap(job.getResult()));
    eventDescription.put("cmdInfo", cmdInfoObj);
    eventDescription.put("status", "" + job.getStatus());
    // If the event.accountinfo boolean value is set, get the human readable value for the username / domainname
    if (UseEventAccountInfo.value()) {
        DomainVO domain = domainDao.findById(jobOwner.getDomainId());
        eventDescription.put("username", userJobOwner.getUsername());
        eventDescription.put("accountname", jobOwner.getAccountName());
        eventDescription.put("domainname", domain.getName());
    }
    event.setDescription(eventDescription);
    try {
        eventBus.publish(event);
    } catch (EventBusException evx) {
        String errMsg = "Failed to publish async job event on the the event bus.";
        s_logger.warn(errMsg, evx);
    }
}