public void handle()

in obr/src/main/java/org/apache/karaf/cellar/obr/ObrUrlEventHandler.java [54:98]
36 lines of code
12 McCabe index (conditional complexity)

    public void handle(ClusterObrUrlEvent event) {

        // check if the handler is ON
        if (this.getSwitch().getStatus().equals(SwitchStatus.OFF)) {
            LOGGER.debug("CELLAR OBR: {} switch is OFF", SWITCH_ID);
            return;
        }

        if (groupManager == null) {
        	//in rare cases for example right after installation this happens!
        	LOGGER.error("CELLAR OBR: retrieved event {} while groupManager is not available yet!", event);
        	return;
        }

        // check if the group is local
        if (!groupManager.isLocalGroup(event.getSourceGroup().getName())) {
            LOGGER.debug("CELLAR OBR: node is not part of the event cluster group {}", event.getSourceGroup().getName());
            return;
        }

        // check if it's not a "local" event
        if (event.getLocal() != null && event.getLocal().getId().equalsIgnoreCase(clusterManager.getNode().getId())) {
            LOGGER.trace("CELLAR OBR: cluster event is local (coming from local synchronizer or listener)");
            return;
        }

        String url = event.getUrl();
        try {
            if (isAllowed(event.getSourceGroup(), Constants.URLS_CONFIG_CATEGORY, url, EventType.INBOUND) || event.getForce()) {
                if (event.getType() == Constants.URL_ADD_EVENT_TYPE) {
                    LOGGER.debug("CELLAR OBR: adding repository URL {}", url);
                    obrService.addRepository(url);
                }
                if (event.getType() == Constants.URL_REMOVE_EVENT_TYPE) {
                    LOGGER.debug("CELLAR OBR: removing repository URL {}", url);
                    boolean removed = obrService.removeRepository(url);
                    if (!removed) {
                        LOGGER.warn("CELLAR OBR: repository URL {} has not been added to the OBR service", url);
                    }
                }
            }
        } catch (Exception e) {
            LOGGER.error("CELLAR OBR: failed to register repository URL {}", url, e);
        }
    }