/*
 * Copyright 2014 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.springframework.batch.core.jsr.configuration.xml;

import org.springframework.batch.core.repository.JobRepository;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
 * @author Michael Minella
 */
public class JsrNamespacePostProcessor implements BeanPostProcessor, ApplicationContextAware {

	private static final String DEFAULT_JOB_REPOSITORY_NAME = "jobRepository";

	private ApplicationContext applicationContext;

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

	@Override
	public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
		if(bean instanceof JobFactoryBean) {
			JobFactoryBean fb = (JobFactoryBean) bean;
			JobRepository jobRepository = fb.getJobRepository();
			if (jobRepository == null) {
				fb.setJobRepository((JobRepository) applicationContext.getBean(DEFAULT_JOB_REPOSITORY_NAME));
			}
		}

		return bean;
	}

	@Override
	public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
		return bean;
	}
}