com.liferay.portlet.wikidisplay.action.ViewAction.java Source code

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Here is the source code for com.liferay.portlet.wikidisplay.action.ViewAction.java

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/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.portlet.wikidisplay.action;

import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.security.auth.PrincipalException;
import com.liferay.portal.struts.PortletAction;
import com.liferay.portal.theme.ThemeDisplay;
import com.liferay.portal.util.WebKeys;
import com.liferay.portlet.wiki.NoSuchNodeException;
import com.liferay.portlet.wiki.NoSuchPageException;
import com.liferay.portlet.wiki.model.WikiNode;
import com.liferay.portlet.wiki.model.WikiPage;
import com.liferay.portlet.wiki.model.WikiPageConstants;
import com.liferay.portlet.wiki.service.WikiNodeServiceUtil;
import com.liferay.portlet.wiki.service.WikiPageServiceUtil;

import javax.portlet.PortletConfig;
import javax.portlet.PortletPreferences;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
 * @author Brian Wing Shun Chan
 */
public class ViewAction extends PortletAction {

    @Override
    public ActionForward render(ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
            RenderRequest renderRequest, RenderResponse renderResponse) throws Exception {

        try {
            PortletPreferences preferences = renderRequest.getPreferences();

            ThemeDisplay themeDisplay = (ThemeDisplay) renderRequest.getAttribute(WebKeys.THEME_DISPLAY);

            long nodeId = GetterUtil.getLong(preferences.getValue("nodeId", StringPool.BLANK));
            String title = ParamUtil.getString(renderRequest, "title",
                    preferences.getValue("title", WikiPageConstants.FRONT_PAGE));

            WikiNode node = WikiNodeServiceUtil.getNode(nodeId);

            if (node.getGroupId() != themeDisplay.getScopeGroupId()) {
                throw new NoSuchNodeException();
            }

            WikiPage wikiPage = null;

            try {
                wikiPage = WikiPageServiceUtil.getPage(nodeId, title);
            } catch (NoSuchPageException nspe) {
                wikiPage = WikiPageServiceUtil.getPage(nodeId, WikiPageConstants.FRONT_PAGE);
            }

            renderRequest.setAttribute(WebKeys.WIKI_NODE, node);
            renderRequest.setAttribute(WebKeys.WIKI_PAGE, wikiPage);

            return mapping.findForward("portlet.wiki_display.view");
        } catch (NoSuchNodeException nsne) {
            return mapping.findForward("/portal/portlet_not_setup");
        } catch (NoSuchPageException nsne) {
            return mapping.findForward("/portal/portlet_not_setup");
        } catch (PrincipalException pe) {
            SessionErrors.add(renderRequest, pe.getClass().getName());

            return mapping.findForward("portlet.wiki_display.error");
        }
    }

}