public void connectSensors()

in software/webapp/src/main/java/org/apache/brooklyn/entity/webapp/tomcat/TomcatServerImpl.java [51:97]
40 lines of code
3 McCabe index (conditional complexity)

    public void connectSensors() {
        super.connectSensors();

        if (getDriver().isJmxEnabled()) {
            String requestProcessorMbeanName = "Catalina:type=GlobalRequestProcessor,name=\"http-*\"";

            Integer port = isHttpsEnabled() ? getAttribute(HTTPS_PORT) : getAttribute(HTTP_PORT);
            String connectorMbeanName = format("Catalina:type=Connector,port=%s", port);
            boolean retrieveUsageMetrics = getConfig(RETRIEVE_USAGE_METRICS);

            jmxWebFeed = JmxFeed.builder()
                    .entity(this)
                    .period(3000, TimeUnit.MILLISECONDS)
                    .pollAttribute(new JmxAttributePollConfig<Boolean>(SERVICE_PROCESS_IS_RUNNING)
                            // TODO Want to use something different from SERVICE_PROCESS_IS_RUNNING,
                            // to indicate this is jmx MBean's reported state (or failure to connect)
                            .objectName(connectorMbeanName)
                            .attributeName("stateName")
                            .onSuccess(Functions.forPredicate(Predicates.<Object>equalTo("STARTED")))
                            .setOnFailureOrException(false)
                            .suppressDuplicates(true))
                    .pollAttribute(new JmxAttributePollConfig<String>(CONNECTOR_STATUS)
                            .objectName(connectorMbeanName)
                            .attributeName("stateName")
                            .suppressDuplicates(true))
                    .pollAttribute(new JmxAttributePollConfig<Integer>(ERROR_COUNT)
                            .objectName(requestProcessorMbeanName)
                            .attributeName("errorCount")
                            .enabled(retrieveUsageMetrics))
                    .pollAttribute(new JmxAttributePollConfig<Integer>(REQUEST_COUNT)
                            .objectName(requestProcessorMbeanName)
                            .attributeName("requestCount")
                            .enabled(retrieveUsageMetrics)
                            .onFailureOrException(EntityFunctions.attribute(this, REQUEST_COUNT)))
                    .pollAttribute(new JmxAttributePollConfig<Integer>(TOTAL_PROCESSING_TIME)
                            .objectName(requestProcessorMbeanName)
                            .attributeName("processingTime")
                            .enabled(retrieveUsageMetrics))
                    .build();

            jmxAppFeed = JavaAppUtils.connectMXBeanSensors(this);
        } else {
            // if not using JMX
            LOG.warn("Tomcat running without JMX monitoring; limited visibility of service available");
            connectServiceUpIsRunning();
        }
    }