Example usage for org.springframework.beans.factory FactoryBean FactoryBean

Introduction

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

Prototype

FactoryBean

Source Link

Usage

From source file:org.apache.james.container.spring.lifecycle.osgi.AbstractOSGIAnnotationBeanPostProcessor.java

@SuppressWarnings("rawtypes")
private FactoryBean getServiceImporter(final A s, final Method writeMethod, String beanName) throws Exception {
    // Invocations will block here, so although the ApplicationContext is
    // created nothing will
    // proceed until all the dependencies are satisfied.
    Class<?>[] params = writeMethod.getParameterTypes();
    if (params.length != 1) {
        throw new IllegalArgumentException("Setter for [" + beanName + "] must have only one argument");
    }//  w w  w  .ja  va2 s .c o m

    if (lookupBeanFactory) {
        if (logger.isDebugEnabled())
            logger.debug("Lookup the bean via the BeanFactory");

        final Class<?> clazz = writeMethod.getParameterTypes()[0];
        Object bean;
        try {
            bean = getBeanFromFactory(s, clazz);
        } catch (NoSuchBeanDefinitionException e) {
            // We was not able to find the bean in the factory so fallback to the osgi registry
            bean = null;
        }

        if (bean != null) {
            final Object fBean = bean;

            // Create a new FactoryBean which just return the found beab
            return new FactoryBean() {

                @Override
                public Object getObject() throws Exception {
                    return fBean;
                }

                @Override
                public Class getObjectType() {
                    return fBean.getClass();
                }

                @Override
                public boolean isSingleton() {
                    return true;
                }
            };
        }
    }
    // The bean was not found in the BeanFactory. Its time to lookup it via the OSGI-Registry
    return getResourceProperty(new OsgiServiceProxyFactoryBean(), getFilter(s), writeMethod, beanName);
}

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