/**
*
*/
package com.common.platform.utils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
/**
*
* @author minwh
*/
public class ApplicationContextUtils implements ApplicationContextAware {
/** 日志对象 */
private static Log log = LogFactory.getLog(ApplicationContextUtils.class);
/** 应用程序上下文 */
private static ApplicationContext applicationContext;
/**
* 功能描述：设置应用程序上下文对象。
* @param context 待设置的应用程序上下文对象。
*/
public void setApplicationContext(final ApplicationContext context) throws BeansException {
if (applicationContext != null) {
throw new BeanCreationException("ApplicationContextHolder already holded 'applicationContext'.");
}
applicationContext = context;
log.info("holded applicationContext,displayName:" + applicationContext.getDisplayName());
}
/**
*
* 功能描述：获取应用程序上下文。
*
* @return 应用程序上下文。
*/
public static ApplicationContext getApplicationContext() {
if (applicationContext == null)
throw new IllegalStateException("'applicationContext' property is null,ApplicationContextUtils not yet init.");
return applicationContext;
}
/**
*
* 功能描述：获取系统注入的bean.
*
* @param beanName 业务bean名称。
* @return 业务bean对象。
*/
@SuppressWarnings("unchecked")
public static <T> T getBean(final String beanName) {
return (T) getApplicationContext().getBean(beanName);
}
}