1   /**
2    * Copyright (c) 2000-2008 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.util.ParamUtil;
26  import com.liferay.portal.struts.ActionConstants;
27  import com.liferay.portal.struts.PortletAction;
28  import com.liferay.portal.theme.ThemeDisplay;
29  import com.liferay.portal.util.PortalUtil;
30  import com.liferay.portal.util.WebKeys;
31  import com.liferay.portlet.calendar.service.CalEventServiceUtil;
32  import com.liferay.util.servlet.ServletResponseUtil;
33  
34  import java.io.BufferedInputStream;
35  import java.io.File;
36  import java.io.FileInputStream;
37  import java.io.InputStream;
38  
39  import javax.portlet.ActionRequest;
40  import javax.portlet.ActionResponse;
41  import javax.portlet.PortletConfig;
42  
43  import javax.servlet.http.HttpServletResponse;
44  
45  import org.apache.commons.logging.Log;
46  import org.apache.commons.logging.LogFactory;
47  import org.apache.struts.action.ActionForm;
48  import org.apache.struts.action.ActionMapping;
49  
50  /**
51   * <a href="ExportEventsAction.java.html"><b><i>View Source</i></b></a>
52   *
53   * @author Michael Young
54   * @author Bruno Farache
55   *
56   */
57  public class ExportEventsAction extends PortletAction {
58  
59      public void processAction(
60              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
61              ActionRequest actionRequest, ActionResponse actionResponse)
62          throws Exception {
63  
64          InputStream is = null;
65  
66          try {
67              ThemeDisplay themeDisplay =
68                  (ThemeDisplay)actionRequest.getAttribute(WebKeys.THEME_DISPLAY);
69  
70              long eventId = ParamUtil.getLong(actionRequest, "eventId");
71  
72              String exportFileName = ParamUtil.getString(
73                  actionRequest, "exportFileName");
74  
75              File file = null;
76  
77              if (eventId > 0) {
78                  file = CalEventServiceUtil.exportEvent(eventId);
79              }
80              else {
81                  file = CalEventServiceUtil.exportGroupEvents(
82                      themeDisplay.getPlid(), exportFileName);
83              }
84  
85              is = new BufferedInputStream(new FileInputStream(file));
86  
87              HttpServletResponse response = PortalUtil.getHttpServletResponse(
88                  actionResponse);
89  
90              ServletResponseUtil.sendFile(response, file.getName(), is);
91  
92              setForward(actionRequest, ActionConstants.COMMON_NULL);
93          }
94          catch (Exception e) {
95              _log.error(e, e);
96          }
97          finally {
98              ServletResponseUtil.cleanUp(is);
99          }
100     }
101 
102     private static Log _log = LogFactory.getLog(ExportEventsAction.class);
103 
104 }