jkservlet.java

Tomcat 4.1与WebServer集成组件的源代码包.

/*
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * [Additional notices, if required by prior licensing conditions]
 *
 */
package org.apache.ajp.tomcat4;


import java.io.*;
import java.net.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.catalina.Container;
import org.apache.catalina.ContainerServlet;
import org.apache.catalina.Context;
import org.apache.catalina.Deployer;
import org.apache.catalina.Globals;
import org.apache.catalina.Session;
import org.apache.catalina.Wrapper;
import org.apache.catalina.util.StringManager;


/**
 * Module loader for JkServlet
 *
 * @author Costin Manolache
 */
public class JkServlet
    extends HttpServlet implements ContainerServlet
{
    // -------------------- ContainerServlet interface --------------------
    Wrapper wrapper;
    
    public Wrapper getWrapper() {
	if( dL > 0 ) d("getWrapper()");
	return wrapper;
    }

    public void setWrapper(Wrapper wrapper) {
	if( dL > 0 ) d("setWrapper() " + wrapper );
	this.wrapper=wrapper;
    }

    Context ctx;
    
    /**
     * Initialize this servlet.
     */
    public void init() throws ServletException {
	super.init();
        if(wrapper == null) {
	    log("No wrapper available, make sure the app is trusted");
	    System.out.println("No wrapper available, make sure the app is trusted");
	    return;
	}

	ctx=(Context) wrapper.getParent();

	if( dL > 0 ) {
	    d("Wrapper: " + wrapper.getClass().getName() + " " + wrapper );
	    d("Ctx: " + ctx.getClass().getName() + " " + ctx );
	    Object parent=ctx.getParent();
	    d("P: " + parent.getClass().getName() + " " + parent );
	    while( parent instanceof Container ) {
		parent=((Container)parent).getParent();
		d("P: " + parent.getClass().getName() + " " + parent );
	    }
	}
	
    }

    public void service(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {
	throw new ServletException("Shouldn't be called direclty");
    }
    
    private static final int dL=10;
    private static void d(String s ) {
        System.err.println( "JkServlet: " + s );
    }


}