Examples of org.springframework.aop.framework.ProxyFactoryBean

Package org.springframework.aop.framework

Examples of org.springframework.aop.framework.ProxyFactoryBean

org.springframework.aop.framework.ProxyFactoryBean
{@link org.springframework.beans.factory.FactoryBean} implementation that builds anAOP proxy based on beans in Spring {@link org.springframework.beans.factory.BeanFactory}.
{@link org.aopalliance.intercept.MethodInterceptor MethodInterceptors} and{@link org.springframework.aop.Advisor Advisors} are identified by a list of beannames in the current bean factory, specified through the "interceptorNames" property. The last entry in the list can be the name of a target bean or a {@link org.springframework.aop.TargetSource}; however, it is normally preferable to use the "targetName"/"target"/"targetSource" properties instead.
Global interceptors and advisors can be added at the factory level. The specified ones are expanded in an interceptor list where an "xxx*" entry is included in the list, matching the given prefix with the bean names (e.g. "global*" would match both "globalBean1" and "globalBean2", "*" all defined interceptors). The matching interceptors get applied according to their returned order value, if they implement the {@link org.springframework.core.Ordered} interface.
Creates a JDK proxy when proxy interfaces are given, and a CGLIB proxy for the actual target class if not. Note that the latter will only work if the target class does not have final methods, as a dynamic subclass will be created at runtime.
It's possible to cast a proxy obtained from this factory to {@link Advised}, or to obtain the ProxyFactoryBean reference and programmatically manipulate it. This won't work for existing prototype references, which are independent. However, it will work for prototypes subsequently obtained from the factory. Changes to interception will work immediately on singletons (including existing references). However, to change interfaces or target it's necessary to obtain a new instance from the factory. This means that singleton instances obtained from the factory do not have the same object identity. However, they do have the same interceptors and target, and changing any reference will change all objects. @author Rod Johnson @author Juergen Hoeller @see #setInterceptorNames @see #setProxyInterfaces @see org.aopalliance.intercept.MethodInterceptor @see org.springframework.aop.Advisor @see Advised

            return null;
        }
        Assert.isTrue(beanNamesForType.length == 1 , "Expecting to only find a single bean for type " + interfaceName + ", but found " + Arrays.asList(beanNamesForType));
        lazyTargetSource.setTargetBeanName(beanNamesForType[0]);
        lazyTargetSource.setBeanFactory(applicationContext);
        ProxyFactoryBean proxyFactory = new ProxyFactoryBean();
        proxyFactory = objectPostProcessor.postProcess(proxyFactory);
        proxyFactory.setTargetSource(lazyTargetSource);
        return (T) proxyFactory.getObject();
    }

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    // Obtain JcrInterceptor bean
    final JpaInterceptor jpaInterceptor = JpaInterceptorLocator.getJpaInterceptor();


    // Proxy worker so that Jpa EntityManager will be properly handled
    final ProxyFactoryBean pfb = new ProxyFactoryBean();
    pfb.setTarget(targetWorker);
    pfb.setInterfaces(targetWorker.getClass().getInterfaces());
    pfb.addAdvice(jpaInterceptor);
   
    this.worker = (IWorker)pfb.getObject();


    this.workTracker = tp.submit(this.worker); // XXX is execute okay?
    this.rendering = true;
    this.startTime = System.currentTimeMillis ();
  }

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    private static IChannelPublisher wrapChannelPublisher(IChannelPublisher channelPublisher) {
        final JpaInterceptor jpaInterceptor = JpaInterceptorLocator.getJpaInterceptor();


        // Proxy IChannelPublisher so that Jpa EntityManager will be properly handled
        final ProxyFactoryBean pfb = new ProxyFactoryBean();
        pfb.setTarget(channelPublisher);
        pfb.setInterfaces(channelPublisher.getClass().getInterfaces());
        pfb.addAdvice(jpaInterceptor);
        
        return (IChannelPublisher)pfb.getObject();
    }

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  protected void crudAdded(String name, JsfCrudAdapter<?, ?> jsfCrudAdapter) {
  }


  public Object addJSFMessageHandling(
      Object target) {
    ProxyFactoryBean proxyCreatorSupport = new ProxyFactoryBean();
    proxyCreatorSupport.setTarget(target);
    proxyCreatorSupport.addAdvice(new JsfMessageInterceptor());
    proxyCreatorSupport.setOptimize(true);
    proxyCreatorSupport.setOpaque(false);
    return proxyCreatorSupport.getObject();
  }

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  @ExternalBean
  public abstract TransactionInterceptor transactionInterceptor();
  
  @SuppressWarnings("unchecked")
  public <T> T addTransactionSupport(T target) {
    ProxyFactoryBean proxyCreatorSupport = new ProxyFactoryBean();
    proxyCreatorSupport.setTarget(target);
    proxyCreatorSupport.addAdvice(transactionInterceptor());
    proxyCreatorSupport.setOptimize(true);
    proxyCreatorSupport.setOpaque(false);
    return (T)proxyCreatorSupport.getObject();
  }

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    }
  }


  @Test
  public void testLoggingTheCurrentlyExecutingMethodName() throws Throwable {
    ProxyFactoryBean proxyFactoryBean = new ProxyFactoryBean();
    proxyFactoryBean.setProxyTargetClass(true);
    proxyFactoryBean.addAdvice(new CurrentMethodExposingMethodInterceptor());
    proxyFactoryBean.setTarget(new TestClassWithAMethod());


    TestClassWithAMethod testClassWithAMethod = (TestClassWithAMethod) proxyFactoryBean.getObject();
    testClassWithAMethod.testMe();
  }

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        if (this.beanNames != null) {
            for (Iterator it = this.beanNames.iterator(); it.hasNext();) {
                String mappedName = (String) it.next();
                if (isMatch(beanName, mappedName)) {
                    if (ProxyFactoryBean.class.isAssignableFrom(bean.getClass())) {
                        ProxyFactoryBean proxyFactoryBean = (ProxyFactoryBean) bean;
                        String[] orignInterceptorNames = getInterceptorFromProxyFactoryBean(proxyFactoryBean);
                        String[] newInterceptorNames = new String[orignInterceptorNames.length
                                                                  + interceptorNames.length];
                        if (applyCommonInterceptorsFirst) {// 如果是true，则将Auto-proxy的拦截器定义到最前面
                            // 构造新的的拦截器列表
                            System.arraycopy(interceptorNames, 0, newInterceptorNames, 0, interceptorNames.length);
                            System.arraycopy(orignInterceptorNames, 0, newInterceptorNames, interceptorNames.length,
                                             orignInterceptorNames.length);
                        } else {
                            System.arraycopy(orignInterceptorNames, 0, newInterceptorNames, 0,
                                             orignInterceptorNames.length);
                            System.arraycopy(interceptorNames, 0, newInterceptorNames, orignInterceptorNames.length,
                                             interceptorNames.length);
                        }
                        // 重新设置新的inteceptorNames
                        proxyFactoryBean.setInterceptorNames(newInterceptorNames);
                        return proxyFactoryBean;
                    } else {
                        // 如果是单例，对应的代理bean对象为同一个
                        ProxyFactoryBean proxyFactoryBean = new ProxyFactoryBean();
                        proxyFactoryBean.setBeanFactory(beanFactory);
                        proxyFactoryBean.setBeanClassLoader(proxyClassLoader);
                        proxyFactoryBean.setInterceptorNames(interceptorNames);
                        proxyFactoryBean.copyFrom(this); // 拷贝对应的一些Proxy config
                        proxyFactoryBean.setTarget(bean);
                        return proxyFactoryBean.getObject();
                    }
                }
            }
        }

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        LazyInitTargetSource lazyTargetSource = new LazyInitTargetSource();
        String[] beanNamesForType = context.getBeanNamesForType(interfaceName);
        Assert.isTrue(beanNamesForType.length == 1 , "Expecting to only find a single bean for type " + interfaceName + ", but found " + Arrays.asList(beanNamesForType));
        lazyTargetSource.setTargetBeanName(beanNamesForType[0]);
        lazyTargetSource.setBeanFactory(context);
        ProxyFactoryBean proxyFactory = new ProxyFactoryBean();
        proxyFactory.setTargetSource(lazyTargetSource);
        proxyFactory.setInterfaces(new Class[] { interfaceName });
        return (T) proxyFactory.getObject();
    }

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        if(org.apache.commons.lang.StringUtils.isNotEmpty(pack)){
           Set<Class<?>> classSet = PackagesToScanUtil.getClasses(pack);
           for(Class<?> miniDaoClass : classSet){
             if(miniDaoClass.isAnnotationPresent(MiniDao.class)){
               //单独加载一个接口的代理类
               ProxyFactoryBean proxyFactoryBean = new ProxyFactoryBean();
               proxyFactoryBean.setBeanFactory(beanFactory);
               proxyFactoryBean.setInterfaces(new Class[]{miniDaoClass});
               proxyFactoryBean.setInterceptorNames(new String[]{"miniDaoHandler"});
               String beanName = MiniDaoUtil.getFirstSmall(miniDaoClass.getSimpleName());
               if(!beanFactory.containsBean(beanName)){
                 
                 //logger.info(".................MiniDaoBean.................init...................."+miniDaoClass.getName());
                 logger.info("MiniDao Interface [/"+miniDaoClass.getName()+"/] onto Spring Bean '"+beanName+"'");
                 beanFactory.registerSingleton(beanName,proxyFactoryBean.getObject());
               }
             }
           }
        }
      }

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