org.ext4spring.parameter.ParameterBeanFactory.java Source code

Introduction

Here is the source code for org.ext4spring.parameter.ParameterBeanFactory.java

Source

/*******************************************************************************
 * Copyright 2013 the original author
 * 
 * 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.ext4spring.parameter;

import javax.annotation.PostConstruct;

import org.ext4spring.parameter.aop.ParameterAdvice;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.annotation.Required;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
 * Creates an AOP proxied version of the parameter bean
 * 
 * @author Peter Borbas
 * 
 */
public class ParameterBeanFactory implements FactoryBean<Object>, ApplicationContextAware {

    private ApplicationContext applicationContext;
    private Object parameterBean;
    private ParameterAdvice parameterAdvice;

    @Override
    public Object getObject() throws Exception {
        ProxyFactory proxyFactory = new ProxyFactory(parameterBean);
        proxyFactory.addAdvice(parameterAdvice);
        proxyFactory.setProxyTargetClass(!parameterBean.getClass().isInterface());
        return proxyFactory.getProxy();
    }

    @Override
    public Class<?> getObjectType() {
        return parameterBean.getClass();
    }

    @Override
    public boolean isSingleton() {
        return true;
    }

    @Required
    public void setParameterBean(Object parameterBean) {
        this.parameterBean = parameterBean;
    }

    public void setParameterAdvice(ParameterAdvice parameterAdvice) {
        this.parameterAdvice = parameterAdvice;
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
    }

    @PostConstruct
    public void init() {
        if (this.parameterAdvice == null) {
            // try to use default
            this.parameterAdvice = (ParameterAdvice) this.applicationContext
                    .getBean(SpringComponents.defaultParameterAdvice);
        }
    }
}