/******************************************************************************
* Copyright (c) 2006, 2010 VMware Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html and the Apache License v2.0
* is available at http://www.opensource.org/licenses/apache2.0.php.
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
* VMware Inc.
*****************************************************************************/
package org.eclipse.gemini.blueprint.compendium.internal.cm;
import org.eclipse.gemini.blueprint.context.BundleContextAware;
import org.osgi.framework.BundleContext;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.beans.factory.config.DestructionAwareBeanPostProcessor;
/**
* Post processor tracking the creation and destruction of managed service instances. The instances tracked are subject
* to Configuration Admin based injection.
*
* @author Costin Leau
*
*/
public class ManagedServiceInstanceTrackerPostProcessor implements BeanFactoryAware, BundleContextAware,
InitializingBean, BeanPostProcessor, DestructionAwareBeanPostProcessor, DisposableBean {
private final String trackedBean;
private DefaultManagedServiceBeanManager managedServiceManager;
private String pid;
private String updateMethod;
private boolean autowireOnUpdate = false;
private BundleContext bundleContext;
private BeanFactory beanFactory;
public ManagedServiceInstanceTrackerPostProcessor(String beanNameToTrack) {
this.trackedBean = beanNameToTrack;
}
public void afterPropertiesSet() throws Exception {
ConfigurationAdminManager cam = new ConfigurationAdminManager(pid, bundleContext);
managedServiceManager = new DefaultManagedServiceBeanManager(autowireOnUpdate, updateMethod, cam, beanFactory);
}
public void destroy() throws Exception {
managedServiceManager.destroy();
}
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
// register the instance (if needed)
if (trackedBean.equals(beanName)) {
return managedServiceManager.register(bean);
}
return bean;
}
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
return bean;
}
public void postProcessBeforeDestruction(Object bean, String beanName) throws BeansException {
if (trackedBean.equals(beanName)) {
managedServiceManager.unregister(bean);
}
}
public void setBundleContext(BundleContext bundleContext) {
this.bundleContext = bundleContext;
}
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
this.beanFactory = beanFactory;
}
/**
* Sets the pid for the configuration manager.
*
* @param pid The pid to set.
*/
public void setPersistentId(String pid) {
this.pid = pid;
}
/**
* Sets whether autowire on update should be performed automatically or not.
*
* @param autowireOnUpdate
*/
public void setAutowireOnUpdate(boolean autowireOnUpdate) {
this.autowireOnUpdate = autowireOnUpdate;
}
/**
* Sets the method name, for bean-managed update strategy.
*
* @param updateMethod The updateMethod to set.
*/
public void setUpdateMethod(String methodName) {
this.updateMethod = methodName;
}
}