static boolean isPropertySet(Map<String, Map<String, String>> configProperties, String configType, String propertyName) {
    return configProperties.containsKey(configType) && configProperties.get(configType).containsKey(propertyName);
  }
General convenience method to determine if a given property has been set in the cluster configuration

@param configProperties the configuration for this cluster
@param configType the config type to check
@param propertyName the property name to check
@return true if the named property has been set
        false if the named property has not been set
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/BlueprintConfigurationProcessor.java