public static String getDefaultRemoteAddress()

in qpid-jms-client/src/main/java/org/apache/qpid/jms/JmsConnectionFactory.java [1064:1123]
50 lines of code
17 McCabe index (conditional complexity)

    public static String getDefaultRemoteAddress() {

        if (DEFAULT_REMOTE_URI != null) {
            return DEFAULT_REMOTE_URI;
        }

        synchronized (JmsConnectionFactory.class) {

            if (DEFAULT_REMOTE_URI != null) {
                return DEFAULT_REMOTE_URI;
            }

            String host = null;
            String port = null;
            String remoteAddress = null;

            try {
                host = AccessController.doPrivileged(new PrivilegedAction<String>() {
                    @Override
                    public String run() {
                        String result = System.getProperty("org.apache.qpid.jms.REMOTE_HOST", DEFAULT_REMOTE_HOST);
                        result = (result == null || result.isEmpty()) ? DEFAULT_REMOTE_HOST : result;
                        return result;
                    }
                });
                port = AccessController.doPrivileged(new PrivilegedAction<String>() {
                    @Override
                    public String run() {
                        String result = System.getProperty("org.apache.qpid.jms.REMOTE_PORT", DEFAULT_REMOTE_PORT);
                        result = (result == null || result.isEmpty()) ? DEFAULT_REMOTE_PORT : result;
                        return result;
                    }
                });
            } catch (Throwable e) {
                LOG.debug("Failed to look up System properties for remote host and port", e);
            }

            host = (host == null || host.isEmpty()) ? DEFAULT_REMOTE_HOST : host;
            port = (port == null || port.isEmpty()) ? DEFAULT_REMOTE_PORT : port;

            final String defaultURL = "amqp://" + host + ":" + port;

            try {
                remoteAddress = AccessController.doPrivileged(new PrivilegedAction<String>() {
                    @Override
                    public String run() {
                        String result = System.getProperty("org.apache.qpid.jms.REMOTE_URI", defaultURL);
                        result = (result == null || result.isEmpty()) ? defaultURL : result;
                        return result;
                    }
                });
            } catch (Throwable e) {
                LOG.debug("Failed to look up System property for remote URI", e);
            }

            DEFAULT_REMOTE_URI = (remoteAddress == null || remoteAddress.isEmpty()) ? defaultURL : remoteAddress;
        }

        return DEFAULT_REMOTE_URI;
    }