001    /*******************************************************************************
002     * Copyright (C) PicoContainer Organization. All rights reserved. 
003     * ---------------------------------------------------------------------------
004     * The software in this package is published under the terms of the BSD style
005     * license a copy of which has been included with this distribution in the
006     * LICENSE.txt file.
007     ******************************************************************************/
008    package org.picocontainer.web.struts;
009    
010    import javax.servlet.http.HttpServletRequest;
011    import javax.servlet.http.HttpServletResponse;
012    
013    import org.apache.struts.action.Action;
014    import org.apache.struts.action.ActionMapping;
015    import org.apache.struts.tiles.TilesRequestProcessor;
016    
017    /**
018     * Uses Pico to produce Actions and inject dependencies into them. Use this
019     * class if you are using the Tiles library. If not, you can use the
020     * {@link org.picocontainer.web.struts.PicoRequestProcessor} instead.
021     * 
022     * @author Stephen Molitor
023     * @see PicoActionFactory
024     * @see org.picocontainer.web.struts.PicoRequestProcessor
025     */
026    public class PicoTilesRequestProcessor extends TilesRequestProcessor {
027    
028        private final PicoActionFactory actionFactory = new PicoActionFactory();
029    
030        /**
031         * Creates or retrieves the action instance. The action is retrieved from
032         * the actions Pico container, using the mapping path as the component key.
033         * If no such action exists, a new one will be instantiated and placed in
034         * the actions container, thus injecting its dependencies.
035         * 
036         * @param request the HTTP request object.
037         * @param response the HTTP response object.
038         * @param mapping the action mapping.
039         * @return the action instance.
040         */
041        protected Action processActionCreate(HttpServletRequest request, HttpServletResponse response, ActionMapping mapping) {
042            return actionFactory.getAction(request, mapping, servlet);
043        }
044    
045    }