001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.struts;
016    
017    import com.liferay.portal.kernel.struts.StrutsAction;
018    import com.liferay.portal.kernel.util.Validator;
019    
020    import javax.servlet.http.HttpServletRequest;
021    import javax.servlet.http.HttpServletResponse;
022    
023    import org.apache.struts.action.Action;
024    import org.apache.struts.action.ActionForm;
025    import org.apache.struts.action.ActionForward;
026    import org.apache.struts.action.ActionMapping;
027    
028    /**
029     * @author Mika Koivisto
030     */
031    public class ActionAdapter extends Action {
032    
033            public ActionAdapter(StrutsAction strutsAction) {
034                    _strutsAction = strutsAction;
035            }
036    
037            @Override
038            public ActionForward execute(
039                            ActionMapping actionMapping, ActionForm actionForm,
040                            HttpServletRequest request, HttpServletResponse response)
041                    throws Exception {
042    
043                    StrutsAction originalStrutsAction = null;
044    
045                    if (_originalAction != null) {
046                            originalStrutsAction = new StrutsActionAdapter(
047                                    _originalAction, actionMapping, actionForm);
048                    }
049    
050                    String forward = _strutsAction.execute(
051                            originalStrutsAction, request, response);
052    
053                    if (Validator.isNull(forward)) {
054                            return null;
055                    }
056    
057                    ActionForward actionForward = actionMapping.findForward(forward);
058    
059                    if (actionForward == null) {
060                            actionForward = new ActionForward(forward);
061                    }
062    
063                    return actionForward;
064            }
065    
066            public void setOriginalAction(Action originalAction) {
067                    _originalAction = originalAction;
068            }
069    
070            private Action _originalAction;
071            private StrutsAction _strutsAction;
072    
073    }