com.liferay.portlet.calendar.action.ExportEventsAction.java Source code

Introduction

Here is the source code for com.liferay.portlet.calendar.action.ExportEventsAction.java

Source

/**
 * 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.calendar.action;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.servlet.ServletResponseUtil;
import com.liferay.portal.kernel.util.ContentTypes;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.struts.ActionConstants;
import com.liferay.portal.struts.PortletAction;
import com.liferay.portal.theme.ThemeDisplay;
import com.liferay.portal.util.PortalUtil;
import com.liferay.portal.util.WebKeys;
import com.liferay.portlet.calendar.service.CalEventServiceUtil;

import java.io.File;
import java.io.FileInputStream;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletConfig;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

/**
 * @author Michael Young
 * @author Bruno Farache
 * @author Brian Wing Shun Chan
 */
public class ExportEventsAction extends PortletAction {

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

        File file = null;

        try {
            ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY);

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

            String exportFileName = ParamUtil.getString(actionRequest, "exportFileName");

            if (Validator.isNull(exportFileName)) {
                exportFileName = "liferay.ics";
            } else {
                exportFileName = FileUtil.getShortFileName(exportFileName);
            }

            if (eventId > 0) {
                file = CalEventServiceUtil.exportEvent(eventId);
            } else {
                file = CalEventServiceUtil.exportGroupEvents(themeDisplay.getScopeGroupId(), exportFileName);
            }

            HttpServletRequest request = PortalUtil.getHttpServletRequest(actionRequest);
            HttpServletResponse response = PortalUtil.getHttpServletResponse(actionResponse);

            ServletResponseUtil.sendFile(request, response, exportFileName, new FileInputStream(file),
                    ContentTypes.TEXT_CALENDAR);

            setForward(actionRequest, ActionConstants.COMMON_NULL);
        } catch (Exception e) {
            _log.error(e, e);
        } finally {
            FileUtil.delete(file);
        }
    }

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

    private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;

    private static Log _log = LogFactoryUtil.getLog(ExportEventsAction.class);

}