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package org.apache.catalina.core;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import java.util.Enumeration;

/**
 * Facade for the StandardWrapper object.
 *
 * @author Remy Maucharat
 * @version $Revision: 1.3 $ $Date: 2006/11/13 19:26:30 $
 */
public final class StandardWrapperFacade
    implements ServletConfig {


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

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

        super();
        this.config = config;
    }


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


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


    /**
     * The context facade object for this wrapper.
     */
    private ServletContext context = null;


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


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


    public ServletContext getServletContext() {

        if (context == null) {
            context = config.getServletContext();
            if ((context != null) && (context instanceof ApplicationContext)) {
                context = ((ApplicationContext) context).getFacade();
            }
        }

        return context;
    }


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


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

}