Java Code Examples for org.springframework.cglib.proxy.Factory#setCallbacks()

The following examples show how to use org.springframework.cglib.proxy.Factory#setCallbacks() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
/**
 * Create a new instance of a dynamically generated subclass implementing the
 * required lookups.
 * @param ctor constructor to use. If this is {@code null}, use the
 * no-arg constructor (no parameterization, or Setter Injection)
 * @param args arguments to use for the constructor.
 * Ignored if the {@code ctor} parameter is {@code null}.
 * @return new instance of the dynamically generated subclass
 */
public Object instantiate(@Nullable Constructor<?> ctor, Object... args) {
	Class<?> subclass = createEnhancedSubclass(this.beanDefinition);
	Object instance;
	if (ctor == null) {
		instance = BeanUtils.instantiateClass(subclass);
	}
	else {
		try {
			Constructor<?> enhancedSubclassConstructor = subclass.getConstructor(ctor.getParameterTypes());
			instance = enhancedSubclassConstructor.newInstance(args);
		}
		catch (Exception ex) {
			throw new BeanInstantiationException(this.beanDefinition.getBeanClass(),
					"Failed to invoke constructor for CGLIB enhanced subclass [" + subclass.getName() + "]", ex);
		}
	}
	// SPR-10785: set callbacks directly on the instance instead of in the
	// enhanced class (via the Enhancer) in order to avoid memory leaks.
	Factory factory = (Factory) instance;
	factory.setCallbacks(new Callback[] {NoOp.INSTANCE,
			new LookupOverrideMethodInterceptor(this.beanDefinition, this.owner),
			new ReplaceOverrideMethodInterceptor(this.beanDefinition, this.owner)});
	return instance;
}
 
Example 2
/**
 * Create a new instance of a dynamically generated subclass implementing the
 * required lookups.
 * @param ctor constructor to use. If this is {@code null}, use the
 * no-arg constructor (no parameterization, or Setter Injection)
 * @param args arguments to use for the constructor.
 * Ignored if the {@code ctor} parameter is {@code null}.
 * @return new instance of the dynamically generated subclass
 */
public Object instantiate(@Nullable Constructor<?> ctor, Object... args) {
	Class<?> subclass = createEnhancedSubclass(this.beanDefinition);
	Object instance;
	if (ctor == null) {
		instance = BeanUtils.instantiateClass(subclass);
	}
	else {
		try {
			Constructor<?> enhancedSubclassConstructor = subclass.getConstructor(ctor.getParameterTypes());
			instance = enhancedSubclassConstructor.newInstance(args);
		}
		catch (Exception ex) {
			throw new BeanInstantiationException(this.beanDefinition.getBeanClass(),
					"Failed to invoke constructor for CGLIB enhanced subclass [" + subclass.getName() + "]", ex);
		}
	}
	// SPR-10785: set callbacks directly on the instance instead of in the
	// enhanced class (via the Enhancer) in order to avoid memory leaks.
	Factory factory = (Factory) instance;
	factory.setCallbacks(new Callback[] {NoOp.INSTANCE,
			new LookupOverrideMethodInterceptor(this.beanDefinition, this.owner),
			new ReplaceOverrideMethodInterceptor(this.beanDefinition, this.owner)});
	return instance;
}
 
Example 3
Source Project: spring-data   File: AbstractResolver.java    License: Apache License 2.0 6 votes vote down vote up
@SuppressWarnings({ "rawtypes", "unchecked" })
protected Object proxy(
	final String id,
	final TypeInformation<?> type,
	final A annotation,
	final ResolverCallback<A> callback) {
	final ProxyInterceptor interceptor = new ProxyInterceptor(id, type, annotation, callback, conversionService);
	if (type.getType().isInterface()) {
		final ProxyFactory proxyFactory = new ProxyFactory(new Class<?>[] { type.getType() });
		for (final Class<?> interf : type.getType().getInterfaces()) {
			proxyFactory.addInterface(interf);
		}
		proxyFactory.addInterface(LazyLoadingProxy.class);
		proxyFactory.addAdvice(interceptor);
		return proxyFactory.getProxy();
	} else {
		final Factory factory = (Factory) objenesis.newInstance(enhancedTypeFor(type.getType()));
		factory.setCallbacks(new Callback[] { interceptor });
		return factory;
	}
}
 
Example 4
/**
 * Create a new instance of a dynamically generated subclass implementing the
 * required lookups.
 * @param ctor constructor to use. If this is {@code null}, use the
 * no-arg constructor (no parameterization, or Setter Injection)
 * @param args arguments to use for the constructor.
 * Ignored if the {@code ctor} parameter is {@code null}.
 * @return new instance of the dynamically generated subclass
 */
public Object instantiate(Constructor<?> ctor, Object... args) {
	Class<?> subclass = createEnhancedSubclass(this.beanDefinition);
	Object instance;
	if (ctor == null) {
		instance = BeanUtils.instantiateClass(subclass);
	}
	else {
		try {
			Constructor<?> enhancedSubclassConstructor = subclass.getConstructor(ctor.getParameterTypes());
			instance = enhancedSubclassConstructor.newInstance(args);
		}
		catch (Exception ex) {
			throw new BeanInstantiationException(this.beanDefinition.getBeanClass(),
					"Failed to invoke constructor for CGLIB enhanced subclass [" + subclass.getName() + "]", ex);
		}
	}
	// SPR-10785: set callbacks directly on the instance instead of in the
	// enhanced class (via the Enhancer) in order to avoid memory leaks.
	Factory factory = (Factory) instance;
	factory.setCallbacks(new Callback[] {NoOp.INSTANCE,
			new LookupOverrideMethodInterceptor(this.beanDefinition, this.owner),
			new ReplaceOverrideMethodInterceptor(this.beanDefinition, this.owner)});
	return instance;
}
 
Example 5
/**
 * Create a new instance of a dynamically generated subclass implementing the
 * required lookups.
 * @param ctor constructor to use. If this is {@code null}, use the
 * no-arg constructor (no parameterization, or Setter Injection)
 * @param args arguments to use for the constructor.
 * Ignored if the {@code ctor} parameter is {@code null}.
 * @return new instance of the dynamically generated subclass
 */
public Object instantiate(Constructor<?> ctor, Object... args) {
	Class<?> subclass = createEnhancedSubclass(this.beanDefinition);
	Object instance;
	if (ctor == null) {
		instance = BeanUtils.instantiate(subclass);
	}
	else {
		try {
			Constructor<?> enhancedSubclassConstructor = subclass.getConstructor(ctor.getParameterTypes());
			instance = enhancedSubclassConstructor.newInstance(args);
		}
		catch (Exception ex) {
			throw new BeanInstantiationException(this.beanDefinition.getBeanClass(),
					"Failed to invoke constructor for CGLIB enhanced subclass [" + subclass.getName() + "]", ex);
		}
	}
	// SPR-10785: set callbacks directly on the instance instead of in the
	// enhanced class (via the Enhancer) in order to avoid memory leaks.
	Factory factory = (Factory) instance;
	factory.setCallbacks(new Callback[] {NoOp.INSTANCE,
			new LookupOverrideMethodInterceptor(this.beanDefinition, this.owner),
			new ReplaceOverrideMethodInterceptor(this.beanDefinition, this.owner)});
	return instance;
}
 
Example 6
/**
 * Create a new instance of a dynamically generated subclass implementing the
 * required lookups.
 * @param ctor constructor to use. If this is {@code null}, use the
 * no-arg constructor (no parameterization, or Setter Injection)
 * @param args arguments to use for the constructor.
 * Ignored if the {@code ctor} parameter is {@code null}.
 * @return new instance of the dynamically generated subclass
 */
Object instantiate(Constructor<?> ctor, Object[] args) {
	Class<?> subclass = createEnhancedSubclass(this.beanDefinition);

	Object instance;
	if (ctor == null) {
		instance = BeanUtils.instantiate(subclass);
	}
	else {
		try {
			Constructor<?> enhancedSubclassConstructor = subclass.getConstructor(ctor.getParameterTypes());
			instance = enhancedSubclassConstructor.newInstance(args);
		}
		catch (Exception e) {
			throw new BeanInstantiationException(this.beanDefinition.getBeanClass(), String.format(
				"Failed to invoke construcor for CGLIB enhanced subclass [%s]", subclass.getName()), e);
		}
	}

	// SPR-10785: set callbacks directly on the instance instead of in the
	// enhanced class (via the Enhancer) in order to avoid memory leaks.
	Factory factory = (Factory) instance;
	factory.setCallbacks(new Callback[] { NoOp.INSTANCE,//
		new LookupOverrideMethodInterceptor(beanDefinition, owner),//
		new ReplaceOverrideMethodInterceptor(beanDefinition, owner) });

	return instance;
}
 
Example 7
public static Object createMockFor(Class clazz, MethodInterceptor interceptor){
    Class proxyCls = createMockClass(clazz);
    Factory proxy = (Factory)newInstance(proxyCls);
    proxy.setCallbacks(new Callback[] {interceptor});
    return proxy;
}
 
Example 8
Source Project: spring-cloud-gcp   File: LazyUtil.java    License: Apache License 2.0 3 votes vote down vote up
/**
 * Returns a proxy that lazily loads the value provided by a supplier. The proxy also
 * stores the key(s) that can be used in case the value was not loaded. If the type of the
 * value is interface, {@link java.lang.reflect.Proxy} is used, otherwise cglib proxy is
 * used (creates a sub-class of the original type; the original class can't be final and
 * can't have final methods).
 * @param supplierFunc a function that provides the value
 * @param type the type of the value
 * @param keys Datastore key(s) that can be used when the parent entity is saved
 * @return true if the object is a proxy that was not evaluated
 */
static <T> T wrapSimpleLazyProxy(Supplier<T> supplierFunc, Class<T> type, Value keys) {
	if (type.isInterface()) {
		return (T) Proxy.newProxyInstance(type.getClassLoader(), new Class[] {type},
			new SimpleLazyDynamicInvocationHandler<T>(supplierFunc, keys));
	}
	Factory factory = (Factory) objenesis.newInstance(getEnhancedTypeFor(type));
	factory.setCallbacks(new Callback[] { new SimpleLazyDynamicInvocationHandler<T>(supplierFunc, keys) });

	return (T) factory;
}