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Java > Open Source Codes > org > infoglue > cms > controllers > usecases > structuretool > impl > simple > ViewSiteNodeUCCImpl


1 /* ===============================================================================
2  *
3  * Part of the InfoGlue Content Management Platform (www.infoglue.org)
4  *
5  * ===============================================================================
6  *
7  * Copyright (C)
8  *
9  * This program is free software; you can redistribute it and/or modify it under
10  * the terms of the GNU General Public License version 2, as published by the
11  * Free Software Foundation. See the file LICENSE.html for more information.
12  *
13  * This program is distributed in the hope that it will be useful, but WITHOUT
14  * ANY WARRANTY, including the implied warranty of MERCHANTABILITY or FITNESS
15  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along with
18  * this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
19  * Place, Suite 330 / Boston, MA 02111-1307 / USA.
20  *
21  * ===============================================================================
22  */

23
24 package org.infoglue.cms.controllers.usecases.structuretool.impl.simple;
25
26 import org.apache.log4j.Logger;
27 import org.exolab.castor.jdo.Database;
28 import org.infoglue.cms.controllers.kernel.impl.simple.BaseUCCController;
29 import org.infoglue.cms.controllers.kernel.impl.simple.CastorDatabaseService;
30 import org.infoglue.cms.controllers.kernel.impl.simple.SiteNodeController;
31 import org.infoglue.cms.controllers.usecases.structuretool.ViewSiteNodeUCC;
32 import org.infoglue.cms.entities.structure.SiteNode;
33 import org.infoglue.cms.entities.structure.SiteNodeVO;
34 import org.infoglue.cms.exception.ConstraintException;
35 import org.infoglue.cms.exception.SystemException;
36 import org.infoglue.cms.util.ConstraintExceptionBuffer;
37
38 public class ViewSiteNodeUCCImpl extends BaseUCCController implements ViewSiteNodeUCC
39 {
40     private final static Logger logger = Logger.getLogger(ViewSiteNodeUCCImpl.class.getName());
41
42     public SiteNodeVO viewSiteNode(Integer JavaDoc siteNodeId) throws ConstraintException, SystemException
43     {
44         Database db = CastorDatabaseService.getDatabase();
45         ConstraintExceptionBuffer ceb = new ConstraintExceptionBuffer();
46
47         SiteNode siteNode = null;
48
49         beginTransaction(db);
50
51         try
52         {
53             siteNode = SiteNodeController.getController().getSiteNodeWithId(siteNodeId, db);
54         
55             //If any of the validations or setMethods reported an error, we throw them up now before create.
56
ceb.throwIfNotEmpty();
57             
58             commitTransaction(db);
59         }
60         catch(ConstraintException ce)
61         {
62             logger.warn("An error occurred so we should not complete the transaction:" + ce, ce);
63             rollbackTransaction(db);
64             throw ce;
65         }
66         catch(Exception JavaDoc e)
67         {
68             logger.error("An error occurred so we should not complete the transaction:" + e, e);
69             rollbackTransaction(db);
70             throw new SystemException(e.getMessage());
71         }
72
73         return siteNode.getValueObject();
74     }
75 }
76         
77
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