standardwrapperfacade.java

精通tomcat书籍原代码,希望大家共同学习

/*
 * Copyright 1999,2004 The Apache Software Foundation.
 * 
 * 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.
 */


package org.apache.catalina.core;


import java.util.Enumeration;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;


/**
 * Facade for the <b>StandardWrapper</b> object.
 *
 * @author Remy Maucharat
 * @version $Revision: 302726 $ $Date: 2004-02-27 09:59:07 -0500 (Fri, 27 Feb 2004) $
 */

public final class StandardWrapperFacade
    implements ServletConfig {


    // ----------------------------------------------------------- Constructors


    /**
     * Create a new facede around a StandardWrapper.
     */
    public StandardWrapperFacade(StandardWrapper config) {

        super();
        this.config = (ServletConfig) config;

    }


    // ----------------------------------------------------- Instance Variables


    /**
     * Wrapped config.
     */
    private ServletConfig config = null;


    // -------------------------------------------------- ServletConfig Methods


    public String getServletName() {
        return config.getServletName();
    }


    public ServletContext getServletContext() {
        ServletContext theContext = config.getServletContext();
        if ((theContext != null) &&
            (theContext instanceof ApplicationContext))
            theContext = ((ApplicationContext) theContext).getFacade();
        return (theContext);
    }


    public String getInitParameter(String name) {
        return config.getInitParameter(name);
    }


    public Enumeration getInitParameterNames() {
        return config.getInitParameterNames();
    }


}