/*******************************************************************************
* This file is part of OpenNMS(R).
*
* Copyright (C) 2009-2011 The OpenNMS Group, Inc.
* OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
*
* OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
*
* OpenNMS(R) is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* OpenNMS(R) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenNMS(R). If not, see:
* http://www.gnu.org/licenses/
*
* For more information contact:
* OpenNMS(R) Licensing <license@opennms.org>
* http://www.opennms.org/
* http://www.opennms.com/
*******************************************************************************/
package org.opennms.core.soa.support;
import org.opennms.core.soa.ServiceRegistry;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.Assert;
/**
* ReferenceFactoryBean
*
* @author brozow
* @version $Id: $
*/
public class ReferenceFactoryBean<T> implements FactoryBean<T>, InitializingBean {
private ServiceRegistry m_serviceRegistry;
private Class<T> m_serviceInterface;
private String m_filter;
private T m_provider;
/**
* <p>setServiceRegistry</p>
*
* @param serviceRegistry a {@link org.opennms.core.soa.ServiceRegistry} object.
*/
public void setServiceRegistry(ServiceRegistry serviceRegistry) {
m_serviceRegistry = serviceRegistry;
}
/**
* <p>setServiceInterface</p>
*
* @param serviceInterface a {@link java.lang.Class} object.
*/
public void setServiceInterface(Class<T> serviceInterface) {
m_serviceInterface = serviceInterface;
}
/**
* <p>setServiceInterface</p>
*
* @param serviceInterface a {@link java.lang.Class} object.
*/
public void setFilter(String filter) {
m_filter = filter;
}
/**
* <p>getObject</p>
*
* @return a {@link java.lang.Object} object.
* @throws java.lang.Exception if any.
*/
public T getObject() throws Exception {
if (m_provider == null) {
m_provider = ProxyFactory.getProxy(m_serviceInterface, new ServiceRegistryTargetSource(m_serviceRegistry, m_filter, m_serviceInterface));
}
return m_provider;
}
/**
* <p>getObjectType</p>
*
* @return a {@link java.lang.Class} object.
*/
public Class<? extends T> getObjectType() {
return m_serviceInterface;
}
/**
* <p>isSingleton</p>
*
* @return a boolean.
*/
public boolean isSingleton() {
return true;
}
/**
* <p>afterPropertiesSet</p>
*
* @throws java.lang.Exception if any.
*/
@Override
public void afterPropertiesSet() throws Exception {
Assert.notNull(m_serviceRegistry, "The serviceRegistry must be set");
Assert.notNull(m_serviceInterface, "The serviceInterface must be set");
}
}