001    /**
002     * Copyright (c) 2000-2010 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.portlet.documentlibrary.action;
016    
017    import com.liferay.portal.kernel.servlet.SessionErrors;
018    import com.liferay.portal.security.auth.PrincipalException;
019    import com.liferay.portal.struts.PortletAction;
020    import com.liferay.portlet.documentlibrary.NoSuchFolderException;
021    
022    import javax.portlet.PortletConfig;
023    import javax.portlet.RenderRequest;
024    import javax.portlet.RenderResponse;
025    
026    import org.apache.struts.action.ActionForm;
027    import org.apache.struts.action.ActionForward;
028    import org.apache.struts.action.ActionMapping;
029    
030    /**
031     * @author Brian Wing Shun Chan
032     */
033    public class ViewAction extends PortletAction {
034    
035            public ActionForward render(
036                            ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
037                            RenderRequest renderRequest, RenderResponse renderResponse)
038                    throws Exception {
039    
040                    try {
041                            ActionUtil.getFolder(renderRequest);
042                    }
043                    catch (Exception e) {
044                            if (e instanceof NoSuchFolderException ||
045                                    e instanceof PrincipalException) {
046    
047                                    SessionErrors.add(renderRequest, e.getClass().getName());
048    
049                                    return mapping.findForward("portlet.document_library.error");
050                            }
051                            else {
052                                    throw e;
053                            }
054                    }
055    
056                    return mapping.findForward("portlet.document_library.view");
057            }
058    
059    }