code: public static PrioritizationStrategy getPrioritizationStrategy(String attributeValue, Long processInstanceId) throws StrategyException {
          Package packageVO = processInstanceId == null ? null : getPackage(processInstanceId);
          TaskInstanceStrategyFactory factory = getInstance();
          String className = factory.getStrategyClassName(attributeValue, StrategyType.PrioritizationStrategy);
          PrioritizationStrategy strategy = (PrioritizationStrategy) factory.getStrategyInstance(PrioritizationStrategy.class, className, packageVO);
          return strategy;
      }
docs: Returns a Prioritization routing strategy instance based on an attribute value and bundle spec
  which can consist of either the routing strategy logical name, or an xml document.
  @param attributeValue
  @return the Prioritization strategy implementor instance