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.FileUtil;
29  import com.liferay.portal.kernel.util.ParamUtil;
30  import com.liferay.portal.struts.ActionConstants;
31  import com.liferay.portal.struts.PortletAction;
32  import com.liferay.portal.theme.ThemeDisplay;
33  import com.liferay.portal.util.PortalUtil;
34  import com.liferay.portal.util.WebKeys;
35  import com.liferay.portlet.calendar.service.CalEventServiceUtil;
36  import com.liferay.util.servlet.ServletResponseUtil;
37  
38  import java.io.BufferedInputStream;
39  import java.io.File;
40  import java.io.FileInputStream;
41  import java.io.InputStream;
42  
43  import javax.portlet.ActionRequest;
44  import javax.portlet.ActionResponse;
45  import javax.portlet.PortletConfig;
46  
47  import javax.servlet.http.HttpServletResponse;
48  
49  import org.apache.struts.action.ActionForm;
50  import org.apache.struts.action.ActionMapping;
51  
52  /**
53   * <a href="ExportEventsAction.java.html"><b><i>View Source</i></b></a>
54   *
55   * @author Michael Young
56   * @author Bruno Farache
57   * @author Brian Wing Shun Chan
58   *
59   */
60  public class ExportEventsAction extends PortletAction {
61  
62      public void processAction(
63              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
64              ActionRequest actionRequest, ActionResponse actionResponse)
65          throws Exception {
66  
67          File file = null;
68          InputStream is = null;
69  
70          try {
71              ThemeDisplay themeDisplay =
72                  (ThemeDisplay)actionRequest.getAttribute(WebKeys.THEME_DISPLAY);
73  
74              long eventId = ParamUtil.getLong(actionRequest, "eventId");
75  
76              String exportFileName = ParamUtil.getString(
77                  actionRequest, "exportFileName");
78  
79              if (eventId > 0) {
80                  file = CalEventServiceUtil.exportEvent(eventId);
81              }
82              else {
83                  file = CalEventServiceUtil.exportGroupEvents(
84                      themeDisplay.getPlid(), exportFileName);
85              }
86  
87              is = new BufferedInputStream(new FileInputStream(file));
88  
89              HttpServletResponse response = PortalUtil.getHttpServletResponse(
90                  actionResponse);
91  
92              ServletResponseUtil.sendFile(
93                  response, file.getName(), is, ContentTypes.TEXT_CALENDAR);
94  
95              setForward(actionRequest, ActionConstants.COMMON_NULL);
96          }
97          catch (Exception e) {
98              _log.error(e, e);
99          }
100         finally {
101             ServletResponseUtil.cleanUp(is);
102 
103             FileUtil.delete(file);
104         }
105     }
106 
107     protected boolean isCheckMethodOnProcessAction() {
108         return _CHECK_METHOD_ON_PROCESS_ACTION;
109     }
110 
111     private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;
112 
113     private static Log _log = LogFactoryUtil.getLog(ExportEventsAction.class);
114 
115 }