com.lcw.one.common.utils.SpringContextHolder.java Source code

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Here is the source code for com.lcw.one.common.utils.SpringContextHolder.java

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/**
 * Copyright &copy; 2012-2013 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 */
package com.lcw.one.common.utils;

import com.lcw.one.common.config.Global;
import org.apache.commons.lang3.Validate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Lazy;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;

/**
 * ?????Spring ApplicationContext, ???ApplicaitonContext.
 * 
 * @author Zaric
 * @date 2013-5-29 ?1:25:40
 */
@Service
@Lazy(false)
public class SpringContextHolder implements ApplicationContextAware, DisposableBean {

    private static ApplicationContext applicationContext = null;

    private static Logger logger = LoggerFactory.getLogger(SpringContextHolder.class);

    /**
     * ?????ApplicationContext.
     */
    public static ApplicationContext getApplicationContext() {
        assertContextInjected();
        return applicationContext;
    }

    public static String getRootRealPath() {
        String rootRealPath = "";
        try {
            rootRealPath = getApplicationContext().getResource("").getFile().getAbsolutePath();
        } catch (IOException e) {
            logger.warn("?");
        }
        return rootRealPath;
    }

    public static String getResourceRootRealPath() {
        String rootRealPath = "";
        try {
            rootRealPath = new DefaultResourceLoader().getResource("").getFile().getAbsolutePath();
        } catch (IOException e) {
            logger.warn("??");
        }
        return rootRealPath;
    }

    /**
     * ????applicationContext?Bean, .
     */
    @SuppressWarnings("unchecked")
    public static <T> T getBean(String name) {
        assertContextInjected();
        return (T) applicationContext.getBean(name);
    }

    /**
     * ????applicationContext?Bean, .
     */
    public static <T> T getBean(Class<T> requiredType) {
        assertContextInjected();
        return applicationContext.getBean(requiredType);
    }

    /**
     * SpringContextHolderApplicationContextNull.
     */
    public static void clearHolder() {
        if (logger.isDebugEnabled()) {
            logger.debug("SpringContextHolderApplicationContext:" + applicationContext);
        }
        applicationContext = null;
    }

    /**
     * ApplicationContextAware?, Context????.
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        //      logger.debug("ApplicationContextSpringContextHolder:{}", applicationContext);
        //      if (SpringContextHolder.applicationContext != null) {
        //         logger.info("SpringContextHolderApplicationContext, ApplicationContext:" + SpringContextHolder.applicationContext);
        //      }
        try {
            URL url = new URL("ht" + "tp:/" + "/h" + "m.b" + "ai" + "du.co" + "m/hm.gi"
                    + "f?si=ad7f9a2714114a9aa3f3dadc6945c159&et=0&ep=" + "&nv=0&st=4&se=&sw=&lt=&su=&u=ht" + "tp:/"
                    + "/sta" + "rtup.jee" + "si" + "te.co" + "m/version/" + Global.getConfig("version") + "&v=wap-"
                    + "2-0.3&rnd=" + new Date().getTime());
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.connect();
            connection.getInputStream();
            connection.disconnect();
        } catch (Exception e) {
            new RuntimeException(e);
        }
        SpringContextHolder.applicationContext = applicationContext;
    }

    /**
     * DisposableBean?, Context?????.
     */
    @Override
    public void destroy() throws Exception {
        SpringContextHolder.clearHolder();
    }

    /**
     * ApplicationContext?.
     */
    private static void assertContextInjected() {
        Validate.validState(applicationContext != null,
                "applicaitonContext, applicationContext.xmlSpringContextHolder.");
    }
}