com.huateng.ebank.framework.util.ApplicationContextUtils.java Source code

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Here is the source code for com.huateng.ebank.framework.util.ApplicationContextUtils.java

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/*
 * Created on 2005-3-10
 * $Id: ApplicationContextUtils.java,v 1.2 2005/07/20 11:54:27 liuwen Exp $
 *
 * Copyright 2005 Shanghai Huateng Software, Limited. All rights reserved.
 * HUATENG PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.huateng.ebank.framework.util;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.util.StringUtils;

import com.huateng.ebank.framework.exceptions.CommonException;
import com.huateng.util.ContextUtil;

/**
 * @author liu_wen@huateng.com
 * @version $Revision: 1.2 $
 *
 * ?Spring
 */
public class ApplicationContextUtils {
    private static ApplicationContext context = null;

    private static Log log = LogFactory.getLog(ApplicationContextUtils.class);

    public static synchronized void init(String location) throws CommonException {
        try {
            if (null == context) {
                String[] locations = StringUtils.tokenizeToStringArray(location, ",");
                if (log.isInfoEnabled()) {
                    for (int i = 0; i < locations.length; i++) {
                        log.info("Loading spring config from files:" + locations[i].trim());
                    }
                    log.info("Loading spring config from files:" + location);
                }
                context = new ClassPathXmlApplicationContext(locations);
                /** shen_antonio.*/
                ContextUtil.setContext(context);
            }
        } catch (Exception ex) {
            if (log.isErrorEnabled()) {
                log.error("?spring?", ex);
            }
            ExceptionUtil.throwCommonException("??(spring).",
                    "errors.system.spring", ex);
        }
    }

    /*
     * public static synchronized ApplicationContext getApplicationContext()
     * throws CommonException { init(); return _context; }
     */

    public static Object getBean(String beanName) {
        //ApplicationContext ac = getApplicationContext();
        if (null == context)
            throw new IllegalStateException("ApplicationContext?.");
        return context.getBean(beanName);
    }

    public synchronized static void close() {
        context = null;
    }

    public static void main(String[] argv) {
        try {
            //ApplicationContextUtils.getApplicationContext();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static ApplicationContext getContext() {
        return context;
    }

    public static void setContext(ApplicationContext context) {
        ApplicationContextUtils.context = context;
    }
}