Example usage for org.springframework.beans.factory.support InstantiationStrategy InstantiationStrategy

Introduction

In this page you can find the example usage for org.springframework.beans.factory.support InstantiationStrategy InstantiationStrategy.

Prototype

InstantiationStrategy

Source Link

Usage

From source file:co.paralleluniverse.common.spring.SpringContainerHelper.java

/**
 * adds hooks to capture autowired constructor args and add them as dependencies
 *
 * @return// w  ww  . j  av a  2s  .co m
 */
private static DefaultListableBeanFactory createBeanFactory() {
    return new DefaultListableBeanFactory() {
        {
            final InstantiationStrategy is = getInstantiationStrategy();
            setInstantiationStrategy(new InstantiationStrategy() {
                @Override
                public Object instantiate(RootBeanDefinition beanDefinition, String beanName, BeanFactory owner)
                        throws BeansException {
                    return is.instantiate(beanDefinition, beanName, owner);
                }

                @Override
                public Object instantiate(RootBeanDefinition beanDefinition, String beanName, BeanFactory owner,
                        Constructor<?> ctor, Object[] args) throws BeansException {
                    final Object bean = is.instantiate(beanDefinition, beanName, owner, ctor, args);
                    addDependencies(bean, args);
                    return bean;
                }

                @Override
                public Object instantiate(RootBeanDefinition beanDefinition, String beanName, BeanFactory owner,
                        Object factoryBean, Method factoryMethod, Object[] args) throws BeansException {
                    final Object bean = is.instantiate(beanDefinition, beanName, owner, factoryBean,
                            factoryMethod, args);
                    addDependencies(bean, args);
                    return bean;
                }
            });
        }

        private void addDependencies(Object bean, Object[] args) {
            if (bean instanceof Service) {
                for (Object arg : args) {
                    if (arg instanceof Service) {
                        ((Service) arg).addDependedBy((Service) bean);
                        ((Service) bean).addDependsOn((Service) arg);
                    }
                }
            }
        }
    };
}

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