/*

  * $Source$

  * $Revision$

  *

  * Copyright (C) 2000 Tim Joyce

  *

  * Part of Melati (http://melati.org), a framework for the rapid

  * development of clean, maintainable web applications.

  *

  * Melati is free software; Permission is granted to copy, distribute

  * and/or modify this software under the terms either:

  *

  * a) the GNU General Public License as published by the Free Software

  *    Foundation; either version 2 of the License, or (at your option)

  *    any later version,

  *

  *    or

  *

  * b) any version of the Melati Software License, as published

  *    at http://melati.org

  *

  * You should have received a copy of the GNU General Public License and

  * the Melati Software License along with this program;

  * if not, write to the Free Software Foundation, Inc.,

  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the

  * GNU General Public License and visit http://melati.org to obtain the

  * Melati Software License.

  *

  * Feel free to contact the Developers of Melati (http://melati.org),

  * if you would like to work out a different arrangement than the options

  * outlined here.  It is our intention to allow Melati to be used by as

  * wide an audience as possible.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * Contact details for copyright holder:

  *

  * Tim Joyce <timj At paneris.org>

  *

  */

 package org.melati.template.webmacro;

 import javax.servlet.http.HttpSession;

 import org.melati.template.ServletTemplateContext;

 import org.melati.util.MelatiBugMelatiException;

 import org.melati.servlet.MultipartFormField;

 import org.webmacro.Context;

 import org.webmacro.servlet.WebContext;

 /**

  * Implements a template context for Melati using Webmacro.

  * 

  * @author Tim Joyce

  */

 public class WebmacroServletTemplateContext 

     extends WebmacroTemplateContext

     implements ServletTemplateContext {

   /** The webcontext. */

   public WebContext webContext;

   /**

    * Constructor.

    * @param wc WebMacro context

    */

   public WebmacroServletTemplateContext(Context wc) {

     super(wc);

     webContext = (WebContext)wc;

   }

   /**

    * Returns null if not present, empty string if empty.

    * {@inheritDoc}

    * @see org.melati.template.ServletTemplateContext#getFormField(java.lang.String)

    */

   public String getFormField(String k) {

     return webContext.getForm(k);

   }

   /**

    * Throws an exception as this is not a multi part form.

    * Should perhaps throw an exception.

    * @see org.melati.template.ServletTemplateContext#getMultipartFormField(String)

    */

   public MultipartFormField getMultipartFormField(String s) {

     throw new MelatiBugMelatiException("Cannot return a multi-part field from a non-multi-part form");

   }

   /**

    * {@inheritDoc}

    * @see org.melati.template.ServletTemplateContext#getSession()

    */

   public HttpSession getSession() {

     return webContext.getSession();

   }

 }