com.liferay.portlet.wiki.action.ViewPageAction.java Source code

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Here is the source code for com.liferay.portlet.wiki.action.ViewPageAction.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.wiki.action;

import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.security.auth.PrincipalException;
import com.liferay.portal.struts.PortletAction;
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 javax.portlet.PortletConfig;
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
 * @author Jorge Ferrer
 */
public class ViewPageAction extends PortletAction {

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

        long categoryId = ParamUtil.getLong(renderRequest, "categoryId");

        if (categoryId > 0) {
            return ViewNodeAction.viewNode(mapping, renderRequest, "portlet.wiki.view_categorized_pages");
        }

        String tag = ParamUtil.getString(renderRequest, "tag");

        if (Validator.isNotNull(tag)) {
            return ViewNodeAction.viewNode(mapping, renderRequest, "portlet.wiki.view_tagged_pages");
        }

        try {
            ActionUtil.getNode(renderRequest);
            ActionUtil.getPage(renderRequest);
        } catch (Exception e) {
            if (e instanceof NoSuchNodeException || e instanceof NoSuchPageException
                    || e instanceof PrincipalException) {

                SessionErrors.add(renderRequest, e.getClass().getName());

                return mapping.findForward("portlet.wiki.error");
            } else {
                throw e;
            }
        }

        return mapping.findForward(getForward(renderRequest, "portlet.wiki.view_page"));
    }

    protected void getNode(RenderRequest renderRequest) throws Exception {
        ActionUtil.getNode(renderRequest);

        WikiNode node = (WikiNode) renderRequest.getAttribute(WebKeys.WIKI_NODE);

        if (node != null) {
            return;
        }

        ActionUtil.getFirstVisibleNode(renderRequest);
    }

    @Override
    protected boolean isCheckMethodOnProcessAction() {
        return false;
    }

}