Examples of org.springframework.aop.Advisor

org.springframework.aop.Advisor
Base interface holding AOP advice (action to take at a joinpoint) and a filter determining the applicability of the advice (such as a pointcut). This interface is not for use by Spring users, but to allow for commonality in support for different types of advice.
Spring AOP is based around around advice delivered via method interception, compliant with the AOP Alliance interception API. The Advisor interface allows support for different types of advice, such as before and after advice, which need not be implemented using interception. @author Rod Johnson

   * bean factory
   */
  private void addAdvisorOnChainCreation(Object next, String name) {
    // We need to convert to an Advisor if necessary so that our source reference
    // matches what we find from superclass interceptors.
    Advisor advisor = namedBeanToAdvisor(next);
    if (logger.isTraceEnabled()) {
      logger.trace("Adding advisor with name '" + name + "'");
    }      
    addAdvisor((Advisor) advisor);
  }

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    if (candidateAdvisors.isEmpty()) {
      return candidateAdvisors;
    }
    List eligibleAdvisors = new LinkedList();
    for (Iterator it = candidateAdvisors.iterator(); it.hasNext();) {
      Advisor candidate = (Advisor) it.next();
      if (candidate instanceof IntroductionAdvisor && canApply(candidate, clazz)) {
        eligibleAdvisors.add(candidate);
      }
    }
    boolean hasIntroductions = !eligibleAdvisors.isEmpty();
    for (Iterator it = candidateAdvisors.iterator(); it.hasNext();) {
      Advisor candidate = (Advisor) it.next();
      if (candidate instanceof IntroductionAdvisor) {
        // already processed
        continue;
      }
      if (canApply(candidate, clazz, hasIntroductions)) {

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   */
  protected List sortAdvisors(List advisors) {
    // build list for sorting
    List partiallyComparableAdvisors = new LinkedList();
    for (Iterator it = advisors.iterator(); it.hasNext();) {
      Advisor element = (Advisor) it.next();
      PartiallyComparableAdvisorHolder advisor =
          new PartiallyComparableAdvisorHolder(element, DEFAULT_PRECEDENCE_COMPARATOR);
      partiallyComparableAdvisors.add(advisor);
    }

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    final List<Advisor> advisors = new LinkedList<Advisor>();
    ReflectionUtils.doWithMethods(aspectClass, new ReflectionUtils.MethodCallback() {
      public void doWith(Method method) throws IllegalArgumentException {
        // Exclude pointcuts
        if (AnnotationUtils.getAnnotation(method, Pointcut.class) == null) {
          Advisor advisor = getAdvisor(method, lazySingletonAspectInstanceFactory, advisors.size(), aspectName);
          if (advisor != null) {
            advisors.add(advisor);
          }
        }
      }
    });


    // If it's a per target aspect, emit the dummy instantiating aspect.
    if (!advisors.isEmpty() && lazySingletonAspectInstanceFactory.getAspectMetadata().isLazilyInstantiated()) {
      Advisor instantiationAdvisor = new SyntheticInstantiationAdvisor(lazySingletonAspectInstanceFactory);
      advisors.add(0, instantiationAdvisor);
    }


    // Find introduction fields.
    for (Field field : aspectClass.getDeclaredFields()) {
      Advisor advisor = getDeclareParentsAdvisor(field);
      if (advisor != null) {
        advisors.add(advisor);
      }
    }

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      this.advisor = advisor;
      this.comparator = comparator;
    }


    public int compareTo(Object obj) {
      Advisor otherAdvisor = ((PartiallyComparableAdvisorHolder) obj).advisor;
      return this.comparator.compare(this.advisor, otherAdvisor);
    }

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          logger.debug("Refreshing bean named '" + pa.getBeanName() + "'");
        }
        // Replace the placeholder with a fresh prototype instance resulting
        // from a getBean() lookup
        Object bean = this.beanFactory.getBean(pa.getBeanName());
        Advisor refreshedAdvisor = namedBeanToAdvisor(bean);
        freshAdvisors.add(refreshedAdvisor);
      }
      else {
        // Add the shared instance.
        freshAdvisors.add(advisors[i]);

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   * bean factory
   */
  private void addAdvisorOnChainCreation(Object next, String name) {
    // We need to convert to an Advisor if necessary so that our source reference
    // matches what we find from superclass interceptors.
    Advisor advisor = namedBeanToAdvisor(next);
    if (logger.isTraceEnabled()) {
      logger.trace("Adding advisor with name '" + name + "'");
    }      
    addAdvisor((Advisor) advisor);
  }

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    if (index < 0 || index > this.advisors.size() - 1) {
      throw new AopConfigException("Advisor index " + index + " is out of bounds: " +
          "This configuration only has " + this.advisors.size() + " advisors.");
    }


    Advisor advisor = (Advisor) this.advisors.get(index);
    if (advisor instanceof IntroductionAdvisor) {
      IntroductionAdvisor ia = (IntroductionAdvisor) advisor;
      // We need to remove introduction interfaces.
      for (int j = 0; j < ia.getInterfaces().length; j++) {
        removeInterface(ia.getInterfaces()[j]);

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    if (isFrozen()) {
      throw new AopConfigException("Cannot add advisor: Configuration is frozen.");
    }
    if (!ObjectUtils.isEmpty(advisors)) {
      for (int i = 0; i < advisors.length; i++) {
        Advisor advisor = advisors[i];
        if (advisor instanceof IntroductionAdvisor) {
          validateIntroductionAdvisor((IntroductionAdvisor) advisor);
        }
        Assert.notNull(advisor, "Advisor must not be null");
        this.advisors.add(advisor);

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  }


  public int indexOf(Advice advice) {
    Assert.notNull(advice, "Advice must not be null");
    for (int i = 0; i < this.advisors.size(); i++) {
      Advisor advisor = (Advisor) this.advisors.get(i);
      if (advisor.getAdvice() == advice) {
        return i;
      }
    }
    return -1;
  }

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