com.liferay.polls.web.internal.portlet.action.ViewActionMVCRenderCommand.java Source code

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Here is the source code for com.liferay.polls.web.internal.portlet.action.ViewActionMVCRenderCommand.java

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/**
 * Copyright (c) 2000-present 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.polls.web.internal.portlet.action;

import com.liferay.polls.constants.PollsPortletKeys;
import com.liferay.polls.constants.PollsWebKeys;
import com.liferay.polls.exception.NoSuchQuestionException;
import com.liferay.polls.model.PollsQuestion;
import com.liferay.polls.service.PollsQuestionService;
import com.liferay.portal.kernel.portlet.bridges.mvc.MVCRenderCommand;
import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.StringPool;

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

import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

/**
 * @author Brian Wing Shun Chan
 * @author Peter Fellwock
 */
@Component(property = { "javax.portlet.name=" + PollsPortletKeys.POLLS_DISPLAY,
        "mvc.command.name=/polls_display/view" }, service = MVCRenderCommand.class)
public class ViewActionMVCRenderCommand implements MVCRenderCommand {

    @Override
    public String render(RenderRequest renderRequest, RenderResponse renderResponse) throws PortletException {

        try {
            PortletPreferences portletPreferences = renderRequest.getPreferences();

            long questionId = GetterUtil.getLong(portletPreferences.getValue("questionId", StringPool.BLANK));

            if (questionId > 0) {
                PollsQuestion question = _pollsQuestionService.getQuestion(questionId);

                renderRequest.setAttribute(PollsWebKeys.POLLS_QUESTION, question);
            }
        } catch (Exception e) {
            if (!(e instanceof NoSuchQuestionException)) {
                SessionErrors.add(renderRequest, e.getClass());

                return "/polls_display/error.jsp";
            }
        }

        return "/polls_display/view.jsp";
    }

    @Reference(unbind = "-")
    protected void setPollsQuestionService(PollsQuestionService pollsQuestionService) {

        _pollsQuestionService = pollsQuestionService;
    }

    private PollsQuestionService _pollsQuestionService;

}