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

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Here is the source code for com.liferay.portlet.wiki.action.EditNodeAction.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.Constants;
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.service.ServiceContext;
import com.liferay.portal.service.ServiceContextFactory;
import com.liferay.portal.struts.PortletAction;
import com.liferay.portlet.wiki.DuplicateNodeNameException;
import com.liferay.portlet.wiki.NoSuchNodeException;
import com.liferay.portlet.wiki.NodeNameException;
import com.liferay.portlet.wiki.model.WikiNode;
import com.liferay.portlet.wiki.service.WikiNodeServiceUtil;
import com.liferay.portlet.wiki.util.WikiCacheThreadLocal;
import com.liferay.portlet.wiki.util.WikiCacheUtil;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
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 EditNodeAction extends PortletAction {

    @Override
    public void processAction(ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
            ActionRequest actionRequest, ActionResponse actionResponse) throws Exception {

        String cmd = ParamUtil.getString(actionRequest, Constants.CMD);

        try {
            if (cmd.equals(Constants.ADD) || cmd.equals(Constants.UPDATE)) {
                updateNode(actionRequest);
            } else if (cmd.equals(Constants.DELETE)) {
                deleteNode(actionRequest);
            } else if (cmd.equals(Constants.SUBSCRIBE)) {
                subscribeNode(actionRequest);
            } else if (cmd.equals(Constants.UNSUBSCRIBE)) {
                unsubscribeNode(actionRequest);
            }

            sendRedirect(actionRequest, actionResponse);
        } catch (Exception e) {
            if (e instanceof NoSuchNodeException || e instanceof PrincipalException) {

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

                setForward(actionRequest, "portlet.wiki.error");
            } else if (e instanceof DuplicateNodeNameException || e instanceof NodeNameException) {

                SessionErrors.add(actionRequest, e.getClass().getName());
            } else {
                throw e;
            }
        }
    }

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

        try {
            long nodeId = ParamUtil.getLong(renderRequest, "nodeId");

            if (nodeId > 0) {
                ActionUtil.getNode(renderRequest);
            }
        } catch (Exception e) {
            if (e instanceof NoSuchNodeException || 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.edit_node"));
    }

    protected void deleteNode(ActionRequest actionRequest) throws Exception {
        long nodeId = ParamUtil.getLong(actionRequest, "nodeId");

        String oldName = getNodeName(nodeId);

        WikiCacheThreadLocal.setClearCache(false);

        WikiNodeServiceUtil.deleteNode(nodeId);

        WikiCacheUtil.clearCache(nodeId);

        WikiCacheThreadLocal.setClearCache(true);

        updatePreferences(actionRequest, oldName, StringPool.BLANK);
    }

    protected String getNodeName(long nodeId) throws Exception {
        WikiNode node = WikiNodeServiceUtil.getNode(nodeId);

        return node.getName();
    }

    protected void subscribeNode(ActionRequest actionRequest) throws Exception {

        long nodeId = ParamUtil.getLong(actionRequest, "nodeId");

        WikiNodeServiceUtil.subscribeNode(nodeId);
    }

    protected void unsubscribeNode(ActionRequest actionRequest) throws Exception {

        long nodeId = ParamUtil.getLong(actionRequest, "nodeId");

        WikiNodeServiceUtil.unsubscribeNode(nodeId);
    }

    protected void updateNode(ActionRequest actionRequest) throws Exception {
        long nodeId = ParamUtil.getLong(actionRequest, "nodeId");

        String name = ParamUtil.getString(actionRequest, "name");
        String description = ParamUtil.getString(actionRequest, "description");

        ServiceContext serviceContext = ServiceContextFactory.getInstance(WikiNode.class.getName(), actionRequest);

        if (nodeId <= 0) {

            // Add node

            WikiNodeServiceUtil.addNode(name, description, serviceContext);
        } else {

            // Update node

            String oldName = getNodeName(nodeId);

            WikiNodeServiceUtil.updateNode(nodeId, name, description, serviceContext);

            updatePreferences(actionRequest, oldName, name);
        }
    }

    protected void updatePreferences(ActionRequest actionRequest, String oldName, String newName) throws Exception {

        PortletPreferences preferences = actionRequest.getPreferences();

        String hiddenNodes = preferences.getValue("hiddenNodes", StringPool.BLANK);
        String visibleNodes = preferences.getValue("visibleNodes", StringPool.BLANK);

        String regex = oldName + ",?";

        preferences.setValue("hiddenNodes", hiddenNodes.replaceFirst(regex, newName));
        preferences.setValue("visibleNodes", visibleNodes.replaceFirst(regex, newName));

        preferences.store();
    }

}