com.liferay.portlet.messageboards.action.ViewMessageAction.java Source code

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Here is the source code for com.liferay.portlet.messageboards.action.ViewMessageAction.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.messageboards.action;

import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.util.ArrayUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.workflow.WorkflowConstants;
import com.liferay.portal.security.auth.PrincipalException;
import com.liferay.portal.struts.PortletAction;
import com.liferay.portal.util.PortletKeys;
import com.liferay.portal.util.PropsValues;
import com.liferay.portal.util.WebKeys;
import com.liferay.portlet.PortalPreferences;
import com.liferay.portlet.PortletPreferencesFactoryUtil;
import com.liferay.portlet.messageboards.NoSuchMessageException;
import com.liferay.portlet.messageboards.model.MBMessageDisplay;
import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;

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
 */
public class ViewMessageAction extends PortletAction {

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

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

            PortalPreferences preferences = PortletPreferencesFactoryUtil.getPortalPreferences(renderRequest);

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

            if (Validator.isNotNull(threadView)) {
                preferences.setValue(PortletKeys.MESSAGE_BOARDS, "thread-view", threadView);
            } else {
                threadView = preferences.getValue(PortletKeys.MESSAGE_BOARDS, "thread-view",
                        PropsValues.MESSAGE_BOARDS_THREAD_VIEWS_DEFAULT);
            }

            if (!ArrayUtil.contains(PropsValues.MESSAGE_BOARDS_THREAD_VIEWS, threadView)) {

                threadView = PropsValues.MESSAGE_BOARDS_THREAD_VIEWS_DEFAULT;

                preferences.setValue(PortletKeys.MESSAGE_BOARDS, "thread-view", threadView);
            }

            boolean includePrevAndNext = PropsValues.MESSAGE_BOARDS_THREAD_PREVIOUS_AND_NEXT_NAVIGATION_ENABLED;

            MBMessageDisplay messageDisplay = MBMessageServiceUtil.getMessageDisplay(messageId,
                    WorkflowConstants.STATUS_ANY, threadView, includePrevAndNext);

            renderRequest.setAttribute(WebKeys.MESSAGE_BOARDS_MESSAGE, messageDisplay);

            return mapping.findForward("portlet.message_boards.view_message");
        } catch (Exception e) {
            if (e instanceof NoSuchMessageException || e instanceof PrincipalException) {

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

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

}