protected String inferHostname()

in software/webapp/src/main/java/org/apache/brooklyn/entity/dns/AbstractGeoDnsServiceImpl.java [341:368]

25 lines of code
11 McCabe index (conditional complexity)


    protected String inferHostname(Entity entity) {
        String hostname = entity.getAttribute(Attributes.HOSTNAME);
        URI url = entity.getAttribute(Attributes.MAIN_URI);
        if (url!=null) {
            try {
                URL u = url.toURL();

                String hostname2 = u.getHost(); 
                if (hostname==null) {
                    if (!entitiesWithoutGeoInfo.contains(entity))  //don't log repeatedly
                        log.warn("GeoDns "+this+" using URL {} to redirect to {} (HOSTNAME attribute is preferred, but not available)", url, entity);
                    hostname = hostname2;
                } else if (!hostname.equals(hostname2)) {
                    if (!entitiesWithoutGeoInfo.contains(entity))  //don't log repeatedly
                        log.warn("GeoDns "+this+" URL {} of "+entity+" does not match advertised HOSTNAME {}; using hostname, not URL", url, hostname);
                }

                if (u.getPort() > 0 && u.getPort() != 80 && u.getPort() != 443) {
                    if (!entitiesWithoutGeoInfo.contains(entity))  //don't log repeatedly
                        log.warn("GeoDns "+this+" detected non-standard port in URL {} for {}; forwarding may not work", url, entity);
                }

            } catch (MalformedURLException e) {
                log.warn("Invalid URL {} for entity {} in {}", new Object[] {url, entity, this});
            }
        }
        return hostname;
    }