code: private boolean checkEnabled() {
          /* Enable this analyzer ONLY if the Nexus URL has been set to something
           other than the default one (if it's the default one, we'll use the
           central one) and it's enabled by the user.
           */
          boolean retval = false;
          try {
              if (!DEFAULT_URL.equals(getSettings().getString(Settings.KEYS.ANALYZER_NEXUS_URL))
                      && getSettings().getBoolean(Settings.KEYS.ANALYZER_NEXUS_ENABLED)) {
                  LOGGER.info("Enabling Nexus analyzer");
                  retval = true;
              } else {
                  LOGGER.debug("Nexus analyzer disabled, using Central instead");
              }
          } catch (InvalidSettingException ise) {
              LOGGER.warn("Invalid setting. Disabling Nexus analyzer");
          }
  
          return retval;
      }
docs: Determines if this analyzer is enabled
  
  @return <code>true</code> if the analyzer is enabled; otherwise
  <code>false</code>