public void handle()

in dosgi/src/main/java/org/apache/karaf/cellar/dosgi/RemoteServiceCallHandler.java [58:113]
49 lines of code
13 McCabe index (conditional complexity)

    public void handle(RemoteServiceCall event) {

        // check if the handler switch is ON
        if (this.getSwitch().getStatus().equals(SwitchStatus.OFF)) {
            LOGGER.debug("CELLAR DOSGI: {} switch is OFF, cluster event is not handled", SWITCH_ID);
            return;
        }

        Object targetService = null;

        if (event != null) {
            ServiceReference[] serviceReferences = null;
            try {
                serviceReferences = bundleContext.getServiceReferences(event.getServiceClass(), null);
                if (serviceReferences != null && serviceReferences.length > 0) {
                    targetService = bundleContext.getService(serviceReferences[0]);
                    bundleContext.ungetService(serviceReferences[0]);
                }
            } catch (InvalidSyntaxException e) {
                LOGGER.error("CELLAR DOSGI: failed to lookup service", e);
            }

            if (targetService != null) {
                Class[] classes = new Class[0];
                if (event.getArguments() != null && event.getArguments().size() > 0) {
                    classes = new Class[event.getArguments().size()];
                    int i = 0;
                    for (Object obj : event.getArguments()) {
                        classes[i++] = obj.getClass();
                    }
                }

                RemoteServiceResult result = new RemoteServiceResult(event.getId());
                EventProducer producer = eventTransportFactory.getEventProducer(Constants.RESULT_PREFIX + Constants.SEPARATOR + event.getSourceNode().getId() + event.getEndpointId(), false);
                try {
                    Method method = getMethod(classes, targetService, event);
                    Object obj = method.invoke(targetService, event.getArguments().toArray());
                    result.setResult(obj);
                    producer.produce(result);

                } catch (NoSuchMethodException e) {
                    LOGGER.error("CELLAR DOSGI: unable to find remote method for service", e);
                    result.setResult(new RemoteServiceInvocationException(e));
                    producer.produce(result);
                } catch (InvocationTargetException e) {
                    LOGGER.error("CELLAR DOSGI: unable to invoke remote method for service", e);
                    result.setResult(new RemoteServiceInvocationException(e.getCause()));
                    producer.produce(result);
                } catch (IllegalAccessException e) {
                    LOGGER.error("CELLAR DOSGI: unable to access remote method for service", e);
                    result.setResult(new RemoteServiceInvocationException(e));
                    producer.produce(result);
                }
            }
        }
    }