private void loadProcessNodeBuilderRegistry(String factoryLocation) {
    String content =
        ConfFileUtils.URLContentsToString(
            ConfFileUtils.getURL(factoryLocation, null, RuleBaseConfiguration.class));

    Map<Class<? extends Node>, ProcessNodeBuilder> map =
        (Map<Class<? extends Node>, ProcessNodeBuilder>) MVEL.eval(content, new HashMap());

    if (map != null) {
      for (Entry<Class<? extends Node>, ProcessNodeBuilder> entry : map.entrySet()) {
        this.nodeBuilderRegistry.register(entry.getKey(), entry.getValue());
      }
    }
  }