com.googlecode.psiprobe.ProbeServlet.java Source code

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Here is the source code for com.googlecode.psiprobe.ProbeServlet.java

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/*
 * Licensed under the GPL License.  You may not use this file except in
 * compliance with the License.  You may obtain a copy of the License at
 *
 *     http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */
package com.googlecode.psiprobe;

import com.googlecode.psiprobe.beans.ContainerWrapperBean;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.ContainerServlet;
import org.apache.catalina.Wrapper;
import org.springframework.web.servlet.DispatcherServlet;

/**
 * Main dispatcher servlet. Spring default dispatcher servlet had to be
 * superceeded to handle "privileged" application context features. The actual
 * requirement is to capture passed Wrapper instance into ContainerWrapperBean.
 * Wrapper instance is our gateway to Tomcat.
 * 
 * @author Vlad Ilyushchenko
 * @author Mark Lewis
 */
public class ProbeServlet extends DispatcherServlet implements ContainerServlet {

    private Wrapper wrapper;

    public Wrapper getWrapper() {
        return wrapper;
    }

    public void setWrapper(Wrapper wrapper) {
        this.wrapper = wrapper;
        logger.info("setWrapper() called");
    }

    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        if (wrapper != null) {
            getContainerWrapperBean().setWrapper(wrapper);
        } else {
            throw new ServletException("Wrapper is null");
        }
    }

    protected void doDispatch(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
            throws Exception {
        httpServletRequest.setCharacterEncoding("UTF-8");
        super.doDispatch(httpServletRequest, httpServletResponse);
    }

    public void destroy() {
        getContainerWrapperBean().setWrapper(null);
        super.destroy();
    }

    protected ContainerWrapperBean getContainerWrapperBean() {
        return (ContainerWrapperBean) getWebApplicationContext().getBean("containerWrapper");
    }

}