public static void init()

in src/main/java/org/apache/sling/settings/impl/SlingPropertiesPrinter.java [46:82]
31 lines of code
5 McCabe index (conditional complexity)

    public static void init(BundleContext bundleContext) throws IOException {
        // if the properties are available, we register the sling properties plugin
        Properties props;
        final String propUrl = bundleContext.getProperty("sling.properties.url");
        if ( propUrl != null ) {
            // try to read properties
            try (final InputStream is = new URL(propUrl).openStream()) {
                final Properties tmp = new Properties();
                tmp.load(is);
                // update props
                for(final Object key : tmp.keySet()) {
                    final Object value = bundleContext.getProperty(key.toString());
                    if ( value != null ) {
                        tmp.put(key, value);
                    }
                }
                props = tmp;

            } catch (IOException ioe) {
                LOGGER.error("Unable to read sling properties from '{}'", propUrl, ioe);
                return;
            }
        } else {
           LOGGER.debug("No bundle context property 'sling.properties.url' provided, not starting 'slingprops' webconsole plugin!");
           return;
        }
        final SlingPropertiesPrinter propertiesPrinter = new SlingPropertiesPrinter(props);
        final Dictionary<String, String> serviceProps = new Hashtable<>();
        serviceProps.put("felix.webconsole.label", "slingprops");
        serviceProps.put("felix.webconsole.title", "Sling Properties");
        serviceProps.put("felix.webconsole.configprinter.modes", "always");

        // no need to keep serviceregistration return value as deregistration only happens automatically once bundle stops
        bundleContext.registerService(SlingPropertiesPrinter.class.getName(),
                propertiesPrinter,
                serviceProps);
    }