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 org.apache.struts.action.Action;
011    import org.apache.struts.action.ActionMapping;
012    import org.apache.struts.action.ActionServlet;
013    
014    import javax.servlet.http.HttpServletRequest;
015    
016    /**
017     * Uses Pico to produce Actions and inject dependencies into them. Only use this
018     * class if you are using Struts 1.0. If you are using Struts 1.1, use
019     * {@link PicoRequestProcessor} or {@link PicoTilesRequestProcessor} instead.
020     * 
021     * @author Stephen Molitor
022     * @see PicoActionFactory
023     * @see PicoRequestProcessor
024     * @see PicoTilesRequestProcessor
025     */
026    @SuppressWarnings("serial")
027    public class PicoActionServlet extends ActionServlet {
028    
029        private final PicoActionFactory actionFactory = new PicoActionFactory();
030    
031        /**
032         * Creates or retrieves the action instance. The action is retrieved from
033         * the actions Pico container, using the mapping path as the component key.
034         * If no such action exists, a new one will be instantiated and placed in
035         * the actions container, thus injecting its dependencies.
036         * 
037         * @param mapping the action mapping.
038         * @param request the HTTP request.
039         * @return the action instance.
040         */
041        protected Action processActionCreate(ActionMapping mapping, HttpServletRequest request) {
042            return actionFactory.getAction(request, mapping, this);
043        }
044    
045    }