1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.calendar.action;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.ContentTypes;
28  import com.liferay.portal.kernel.util.ParamUtil;
29  import com.liferay.portal.struts.ActionConstants;
30  import com.liferay.portal.struts.PortletAction;
31  import com.liferay.portal.theme.ThemeDisplay;
32  import com.liferay.portal.util.PortalUtil;
33  import com.liferay.portal.util.WebKeys;
34  import com.liferay.portlet.calendar.service.CalEventServiceUtil;
35  import com.liferay.util.servlet.ServletResponseUtil;
36  
37  import java.io.BufferedInputStream;
38  import java.io.File;
39  import java.io.FileInputStream;
40  import java.io.InputStream;
41  
42  import javax.portlet.ActionRequest;
43  import javax.portlet.ActionResponse;
44  import javax.portlet.PortletConfig;
45  
46  import javax.servlet.http.HttpServletResponse;
47  
48  import org.apache.struts.action.ActionForm;
49  import org.apache.struts.action.ActionMapping;
50  
51  /**
52   * <a href="ExportEventsAction.java.html"><b><i>View Source</i></b></a>
53   *
54   * @author Michael Young
55   * @author Bruno Farache
56   *
57   */
58  public class ExportEventsAction extends PortletAction {
59  
60      public void processAction(
61              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
62              ActionRequest actionRequest, ActionResponse actionResponse)
63          throws Exception {
64  
65          InputStream is = null;
66  
67          try {
68              ThemeDisplay themeDisplay =
69                  (ThemeDisplay)actionRequest.getAttribute(WebKeys.THEME_DISPLAY);
70  
71              long eventId = ParamUtil.getLong(actionRequest, "eventId");
72  
73              String exportFileName = ParamUtil.getString(
74                  actionRequest, "exportFileName");
75  
76              File file = null;
77  
78              if (eventId > 0) {
79                  file = CalEventServiceUtil.exportEvent(eventId);
80              }
81              else {
82                  file = CalEventServiceUtil.exportGroupEvents(
83                      themeDisplay.getScopeGroupId(), exportFileName);
84              }
85  
86              is = new BufferedInputStream(new FileInputStream(file));
87  
88              HttpServletResponse response = PortalUtil.getHttpServletResponse(
89                  actionResponse);
90  
91              ServletResponseUtil.sendFile(
92                  response, file.getName(), is, ContentTypes.TEXT_CALENDAR);
93  
94              setForward(actionRequest, ActionConstants.COMMON_NULL);
95          }
96          catch (Exception e) {
97              _log.error(e, e);
98          }
99          finally {
100             ServletResponseUtil.cleanUp(is);
101         }
102     }
103 
104     private static Log _log = LogFactoryUtil.getLog(ExportEventsAction.class);
105 
106 }