Examples of TargetSource

mage.target.TargetSource
@author BetaSteward_at_googlemail.com
org.springframework.aop.TargetSource
A TargetSource is used to obtain the current "target" of an AOP invocation, which will be invoked via reflection if no around advice chooses to end the interceptor chain itself.
If a TargetSource is "static", it will always return the same target, allowing optimizations in the AOP framework. Dynamic target sources can support pooling, hot swapping, etc.
Application developers don't usually need to work with TargetSources directly: this is an AOP framework interface. @author Rod Johnson

Examples of org.springframework.aop.TargetSource

    }


    // Create proxy here if we have a custom TargetSource.
    // Suppresses unnecessary default instantiation of the target bean:
    // The TargetSource will handle target instances in a custom fashion.
    TargetSource targetSource = getCustomTargetSource(beanClass, beanName);
    if (targetSource != null) {
      this.targetSourcedBeans.add(beanName);
      Object[] specificInterceptors = getAdvicesAndAdvisorsForBean(beanClass, beanName, targetSource);
      return createProxy(beanClass, beanName, specificInterceptors, targetSource);
    }

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Examples of org.springframework.aop.TargetSource

    // We can't create fancy target sources for directly registered singletons.
    if (this.customTargetSourceCreators != null &&
        this.beanFactory != null && this.beanFactory.containsBean(beanName)) {
      for (int i = 0; i < this.customTargetSourceCreators.length; i++) {
        TargetSourceCreator tsc = this.customTargetSourceCreators[i];
        TargetSource ts = tsc.getTargetSource(beanClass, beanName);
        if (ts != null) {
          // Found a matching TargetSource.
          if (logger.isDebugEnabled()) {
            logger.debug("TargetSourceCreator [" + tsc +
                " found custom TargetSource for bean with name '" + beanName + "'");

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Examples of org.springframework.aop.TargetSource

      }
    }


    proxyFactory.copyFrom(this);


    TargetSource targetSource = createTargetSource(this.target);
    proxyFactory.setTargetSource(targetSource);


    if (this.proxyInterfaces != null) {
      proxyFactory.setInterfaces(this.proxyInterfaces);
    }
    else if (!isProxyTargetClass()) {
      // Rely on AOP infrastructure to tell us what interfaces to proxy.
      proxyFactory.setInterfaces(ClassUtils.getAllInterfacesForClass(targetSource.getTargetClass()));
    }


    this.proxy = getProxy(proxyFactory);
  }

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Examples of org.springframework.aop.TargetSource

  /**
   * Creates lazy proxies for the <code>JMXConnector</code> and <code>MBeanServerConnection</code>
   */
  private void createLazyConnection() {
    this.connectorTargetSource = new JMXConnectorLazyInitTargetSource();
    TargetSource connectionTargetSource = new MBeanServerConnectionLazyInitTargetSource();


    this.connector = (JMXConnector)
        new ProxyFactory(JMXConnector.class, this.connectorTargetSource).getProxy(this.beanClassLoader);
    this.connection = (MBeanServerConnection)
        new ProxyFactory(MBeanServerConnection.class, connectionTargetSource).getProxy(this.beanClassLoader);

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Examples of org.springframework.aop.TargetSource

 * @author Juergen Hoeller
 */
public class LazyCreationTargetSourceTests extends TestCase {


  public void testCreateLazy() {
    TargetSource targetSource = new AbstractLazyCreationTargetSource() {
      protected Object createObject() {
        return new InitCountingBean();
      }
      public Class getTargetClass() {
        return InitCountingBean.class;
      }
    };


    InitCountingBean proxy = (InitCountingBean) ProxyFactory.getProxy(targetSource);
    assertEquals("Init count should be 0", 0, InitCountingBean.initCount);
    assertEquals("Target class incorrect", InitCountingBean.class, targetSource.getTargetClass());
    assertEquals("Init count should still be 0 after getTargetClass()", 0, InitCountingBean.initCount);


    proxy.doSomething();
    assertEquals("Init count should now be 1", 1, InitCountingBean.initCount);

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Examples of org.springframework.aop.TargetSource

    DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
    bf.registerBeanDefinition("ts", tsBd);
    bf.registerBeanDefinition("person", bd);


    TestTargetSource cpts = (TestTargetSource) bf.getBean("ts");
    TargetSource serialized = (TargetSource) SerializationTestUtils.serializeAndDeserialize(cpts);
    assertTrue("Changed to SingletonTargetSource on deserialization",
        serialized instanceof SingletonTargetSource);
    SingletonTargetSource sts = (SingletonTargetSource) serialized;
    assertNotNull(sts.getTarget());
  }

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Examples of org.springframework.aop.TargetSource

    pf.addAdvice(new DebugInterceptor());
    pf.setExposeProxy(true);
    final ITestBean proxy = (ITestBean) createProxy(pf);
    Advised config = (Advised) proxy;
    // This class just checks proxy is bound before getTarget() call
    config.setTargetSource(new TargetSource() {
      public Class getTargetClass() {
        return TestBean.class;
      }


      public boolean isStatic() {

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Examples of org.springframework.aop.TargetSource

     * be returned from this method.
     */
    public static Object getRealBean(Object proxy) throws Exception
    {
        Advised advised = (Advised) proxy;
        TargetSource targetSource = advised.getTargetSource();
        Object real = targetSource.getTarget();
        
        // Possibly we could add a method on the ScopedBeanTargetSource class to test
        // whether the target bean exists. Then here we could cast TargetSource to
        // ScopedBeanTargetSource and return null if the target does not exist. This
        // might be useful, but let's leave that until someone actually has a use-case

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Examples of org.springframework.aop.TargetSource


    protected Class getRealClassInternal(Object o) {
        if (AopUtils.isAopProxy(o)) {
            Advised advised = (Advised)o;
            try {
                TargetSource targetSource = advised.getTargetSource();
                
                Object target = null;
                
                try {
                    target = targetSource.getTarget();
                } catch (BeanCreationException ex) {
                    // some scopes such as 'request' may not 
                    // be active on the current thread yet
                    return getRealClassFromClassInternal(targetSource.getTargetClass());
                }
                
                if (target == null) {
                    Class targetClass = AopUtils.getTargetClass(o);
                    if (targetClass != null) {

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Examples of org.springframework.aop.TargetSource

    }


    // Create proxy here if we have a custom TargetSource.
    // Suppresses unnecessary default instantiation of the target bean:
    // The TargetSource will handle target instances in a custom fashion.
    TargetSource targetSource = getCustomTargetSource(beanClass, beanName);
    if (targetSource != null) {
      this.targetSourcedBeans.add(beanName);
      Object[] specificInterceptors = getAdvicesAndAdvisorsForBean(beanClass, beanName, targetSource);
      Object proxy = createProxy(beanClass, beanName, specificInterceptors, targetSource);
      this.proxyTypes.put(cacheKey, proxy.getClass());

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