com.helpinput.spring.servlet.mvc.EnhanceDispachServlet.java Source code

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Here is the source code for com.helpinput.spring.servlet.mvc.EnhanceDispachServlet.java

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/*
 * Copyright 2013-2015 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.
 */

/**
 *@Author: niaoge(Zhengsheng Xia)
 *@Email 78493244@qq.com
 *@Date: 2015-6-20
 */
package com.helpinput.spring.servlet.mvc;

import org.slf4j.Logger;
import org.springframework.beans.BeanUtils;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextException;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

import com.helpinput.core.LoggerBase;
import com.helpinput.holder.ContextHolder;
import com.helpinput.spring.registinerceptor.mvc.UrlInterceptorBeanRegistInterceptor;

@SuppressWarnings("serial")
public class EnhanceDispachServlet extends DispatcherServlet {
    static Logger logger = LoggerBase.logger;

    @Override
    protected WebApplicationContext createWebApplicationContext(ApplicationContext parent) {
        ContextHolder.beanRegistIntercpterHolder.register(new UrlInterceptorBeanRegistInterceptor());

        Class<?> contextClass = getContextClass();
        if (logger.isDebugEnabled()) {
            logger.debug("Servlet with name '" + getServletName()
                    + "' will try to create custom WebApplicationContext context of class '"
                    + contextClass.getName() + "'" + ", using parent context [" + parent + "]");
        }
        if (!ConfigurableWebApplicationContext.class.isAssignableFrom(contextClass)) {
            throw new ApplicationContextException("Fatal initialization error in servlet with name '"
                    + getServletName() + "': custom WebApplicationContext class [" + contextClass.getName()
                    + "] is not of type ConfigurableWebApplicationContext");
        }
        ConfigurableWebApplicationContext wac;
        if (parent instanceof ConfigurableWebApplicationContext)
            wac = (ConfigurableWebApplicationContext) parent;
        else {
            wac = (ConfigurableWebApplicationContext) BeanUtils.instantiateClass(contextClass);
            wac.setEnvironment(getEnvironment());
            wac.setParent(parent);
            wac.setConfigLocation(getContextConfigLocation());
            configureAndRefreshWebApplicationContext(wac);
        }
        return wac;
    }

}