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Java > Open Source Codes > org > dspace > app > webui > servlet > CommunityListServlet


1 /*
2  * CommunityListServlet.java
3  *
4  * Version: $Revision: 1.10 $
5  *
6  * Date: $Date: 2005/04/20 14:22:35 $
7  *
8  * Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
9  * Institute of Technology. All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions are
13  * met:
14  *
15  * - Redistributions of source code must retain the above copyright
16  * notice, this list of conditions and the following disclaimer.
17  *
18  * - Redistributions in binary form must reproduce the above copyright
19  * notice, this list of conditions and the following disclaimer in the
20  * documentation and/or other materials provided with the distribution.
21  *
22  * - Neither the name of the Hewlett-Packard Company nor the name of the
23  * Massachusetts Institute of Technology nor the names of their
24  * contributors may be used to endorse or promote products derived from
25  * this software without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
32  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
33  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
34  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
35  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
38  * DAMAGE.
39  */
40 package org.dspace.app.webui.servlet;
41
42 import java.io.IOException JavaDoc;
43 import java.sql.SQLException JavaDoc;
44 import java.util.HashMap JavaDoc;
45 import java.util.Map JavaDoc;
46
47 import javax.servlet.ServletException JavaDoc;
48 import javax.servlet.http.HttpServletRequest JavaDoc;
49 import javax.servlet.http.HttpServletResponse JavaDoc;
50
51 import org.apache.log4j.Logger;
52 import org.dspace.app.webui.util.JSPManager;
53 import org.dspace.authorize.AuthorizeException;
54 import org.dspace.authorize.AuthorizeManager;
55 import org.dspace.content.Collection;
56 import org.dspace.content.Community;
57 import org.dspace.core.Context;
58 import org.dspace.core.LogManager;
59
60 /**
61  * Servlet for listing communities (and collections within them)
62  *
63  * @author Robert Tansley
64  * @version $Revision: 1.10 $
65  */
66 public class CommunityListServlet extends DSpaceServlet
67 {
68     /** log4j category */
69     private static Logger log = Logger.getLogger(CommunityListServlet.class);
70
71     protected void doDSGet(Context context, HttpServletRequest JavaDoc request,
72             HttpServletResponse JavaDoc response) throws ServletException JavaDoc, IOException JavaDoc,
73             SQLException JavaDoc, AuthorizeException
74     {
75         log.info(LogManager.getHeader(context, "view_community_list", ""));
76
77         // This will map community IDs to arrays of collections
78 Map JavaDoc colMap = new HashMap JavaDoc();
79
80         // This will map communityIDs to arrays of sub-communities
81 Map JavaDoc commMap = new HashMap JavaDoc();
82
83         Community[] communities = Community.findAllTop(context);
84
85         for (int com = 0; com < communities.length; com++)
86         {
87             Integer JavaDoc comID = new Integer JavaDoc(communities[com].getID());
88
89             // Find collections in community
90 Collection[] colls = communities[com].getCollections();
91             colMap.put(comID, colls);
92
93             // Find subcommunties in community
94 Community[] comms = communities[com].getSubcommunities();
95             commMap.put(comID, comms);
96         }
97
98         // can they admin communities?
99 if (AuthorizeManager.isAdmin(context))
100         {
101             // set a variable to create an edit button
102 request.setAttribute("admin_button", new Boolean JavaDoc(true));
103         }
104
105         request.setAttribute("communities", communities);
106         request.setAttribute("collections.map", colMap);
107         request.setAttribute("subcommunities.map", commMap);
108         JSPManager.showJSP(request, response, "/community-list.jsp");
109     }
110 }
111
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