/*
* Copyright 2007-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package org.impalaframework.spring.service.bean;
import org.impalaframework.module.ModuleDefinition;
import org.impalaframework.module.definition.ModuleDefinitionAware;
import org.impalaframework.service.ServiceBeanReference;
import org.impalaframework.service.ServiceRegistryEntry;
import org.impalaframework.spring.service.SpringServiceBeanUtils;
import org.impalaframework.spring.service.proxy.DefaultProxyFactoryCreator;
import org.impalaframework.spring.service.proxy.StaticServiceReferenceProxyFactorySource;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.util.Assert;
/**
* {@link FactoryBean} which exposes existing named bean via a proxy. The proxy can be used in a static way, allowing the client to
* treat the source bean as if it is a singleton.
* @author Phil Zoio
*/
public class ProxiedNamedFactoryBean extends BaseExistingBeanExposingFactoryBean implements BeanClassLoaderAware, ModuleDefinitionAware {
private String beanName;
private Class<?>[] proxyTypes;
private ClassLoader beanClassLoader;
private ModuleDefinition moduleDefinition;
private ServiceBeanReference serviceBeanReference;
private ProxyFactory proxyFactory;
public void afterPropertiesSet() throws Exception {
Assert.notNull(beanName, "beanName cannot be null");
BeanFactory parentFactory = findBeanFactory();
this.serviceBeanReference = SpringServiceBeanUtils.newServiceBeanReference(parentFactory, getBeanNameToSearchFor());
final String moduleName;
if (moduleDefinition != null) {
moduleName = moduleDefinition.getName();
} else {
moduleName = "internal";
}
ServiceRegistryEntry entry = new LocalOnlyServiceRegistryEntry(serviceBeanReference, getBeanNameToSearchFor(), moduleName, this.beanClassLoader);
//no need to set context class loader as this is not being used to call across modules
DefaultProxyFactoryCreator proxyFactoryCreator = new DefaultProxyFactoryCreator();
proxyFactoryCreator.setSetContextClassLoader(false);
final StaticServiceReferenceProxyFactorySource proxyFactorySource = new StaticServiceReferenceProxyFactorySource(proxyTypes, entry);
proxyFactory = proxyFactoryCreator.createProxyFactory(proxyFactorySource, beanName, null);
}
@Override
protected String getBeanNameToSearchFor() {
return beanName;
}
@Override
protected boolean getIncludeCurrentBeanFactory() {
return true;
}
public Object getObject() throws Exception {
return proxyFactory.getProxy();
}
public boolean isSingleton() {
return serviceBeanReference.isStatic();
}
public void setBeanClassLoader(ClassLoader classLoader) {
this.beanClassLoader = classLoader;
}
public void setModuleDefinition(ModuleDefinition moduleDefinition) {
this.moduleDefinition = moduleDefinition;
}
public void setProxyTypes(Class<?>[] proxyTypes) {
this.proxyTypes = proxyTypes;
}
public void setBeanName(String beanName) {
this.beanName = beanName;
}
}