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Java > Open Source Codes > org > infoglue > cms > treeservice > NodeService


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.treeservice;
25
26
27 public class NodeService //extends JServiceBuilder
28 {
29 /*
30     public static final String DatabaseFile = "database.xml";
31     public static final String MappingFile = "mapping.xml";
32
33     private Mapping mapping;
34     private JDO jdo;
35
36     
37     public void init(ServletConfig config) throws ServletException
38     {
39         super.init(config);
40         
41         try
42         {
43             mapping = new Mapping( getClass().getClassLoader() );
44             mapping.loadMapping( getClass().getResource( MappingFile ) );
45
46             jdo = new JDO();
47             jdo.setConfiguration( getClass().getResource( DatabaseFile ).toString() );
48             jdo.setDatabaseName( "maingate" );
49         }
50         catch(Exception e)
51         {
52             logger.info("Error trying to initialize db");
53         }
54     }
55     
56
57     public CommunicationEnvelope execute(CommunicationEnvelope envelope)
58     {
59         CommunicationEnvelope responseEnvelope = new CommunicationEnvelope();
60         
61         try
62         {
63             String action = envelope.getAction();
64             logger.info("ACTION:" + action);
65             
66             if(action.equals("selectRootNode"))
67             {
68                 responseEnvelope = getRootNode(envelope);
69             }
70             else if(action.equals("selectNode"))
71             {
72             }
73             else if(action.equals("createNode"))
74             {
75                 responseEnvelope = createNode(envelope);
76             }
77             else if(action.equals("updateNode"))
78             {
79                 responseEnvelope = updateNode(envelope);
80             }
81             else if(action.equals("deleteNode"))
82             {
83                 responseEnvelope = deleteNode(envelope);
84             }
85             
86             logger.info("Executing in NodeService...");
87         }
88         catch (Exception e)
89         {
90             responseEnvelope.setStatus(1);
91             e.printStackTrace();
92         }
93         return responseEnvelope;
94     }
95
96     public CommunicationEnvelope getRootNode(CommunicationEnvelope envelope)
97     {
98         CommunicationEnvelope responseEnvelope = new CommunicationEnvelope();
99         
100         try
101         {
102             Database db = jdo.getDatabase();
103             
104             db.begin();
105             
106             Node node = null;
107             
108             String oqlString = "SELECT n FROM Node n WHERE is_undefined(parent)";
109             logger.info("oqlString:" + oqlString);
110             OQLQuery oql = db.getOQLQuery(oqlString);
111             logger.info("oql prepared");
112             QueryResults results = oql.execute();
113             logger.info("results fetched");
114             if(results.hasMore())
115                 node = (Node)results.next();
116
117             logger.info("Fetched a node:" + node);
118             responseEnvelope.setData(node);
119             
120             db.commit();
121         }
122         catch (Exception e)
123         {
124             responseEnvelope.setStatus(1);
125             e.printStackTrace();
126         }
127         return responseEnvelope;
128     }
129
130
131     public CommunicationEnvelope updateNode(CommunicationEnvelope envelope)
132     {
133         CommunicationEnvelope responseEnvelope = new CommunicationEnvelope();
134         
135         try
136         {
137             Database db = jdo.getDatabase();
138             
139             db.begin();
140             
141             Node updatedNode = (Node)envelope.getData();
142             logger.info("Node to update:" + updatedNode);
143             
144             //Kan man ändra så att den sparas direkt kanske?
145             Node node = (Node)db.load(Node.class, updatedNode.getId());
146             node.setChildren(updatedNode.getChildren());
147             node.setName(updatedNode.getName());
148             node.setParent(updatedNode.getParent());
149
150             logger.info("Executing in NodeService...");
151             responseEnvelope.setData(node);
152
153             db.commit();
154         }
155         catch (Exception e)
156         {
157             responseEnvelope.setStatus(1);
158             e.printStackTrace();
159         }
160         return responseEnvelope;
161     }
162
163
164     public CommunicationEnvelope createNode(CommunicationEnvelope envelope)
165     {
166         CommunicationEnvelope responseEnvelope = new CommunicationEnvelope();
167         
168         try
169         {
170             Database db = jdo.getDatabase();
171             
172             db.begin();
173             
174             Node newNode = (Node)envelope.getData();
175             logger.info("Node to create:" + newNode);
176             
177             //Kan man ändra så att den sparas direkt kanske?
178             Node node = new Node();
179             node.setName(newNode.getName());
180             
181             Node parentNode = (Node)db.load(Node.class, newNode.getParent().getId());
182             node.setParent(parentNode);
183             node.setChildren(newNode.getChildren());
184             db.create(node);
185
186             logger.info("Executing in NodeService...");
187             responseEnvelope.setData(node);
188
189             db.commit();
190         }
191         catch (Exception e)
192         {
193             responseEnvelope.setStatus(1);
194             e.printStackTrace();
195         }
196         return responseEnvelope;
197     }
198     
199     public CommunicationEnvelope deleteNode(CommunicationEnvelope envelope)
200     {
201         CommunicationEnvelope responseEnvelope = new CommunicationEnvelope();
202         
203         try
204         {
205             Database db = jdo.getDatabase();
206             
207             db.begin();
208             
209             Node deleteNode = (Node)envelope.getData();
210             Node parent = deleteNode.getParent();
211             logger.info("Node to delete:" + deleteNode);
212             
213             //Kan man ändra så att den sparas direkt kanske?
214             Node node = (Node)db.load(Node.class, deleteNode.getId());
215             db.remove(node);
216
217             logger.info("Executing in NodeService...");
218             responseEnvelope.setData(parent);
219
220             db.commit();
221         }
222         catch (Exception e)
223         {
224             responseEnvelope.setStatus(1);
225             e.printStackTrace();
226         }
227         return responseEnvelope;
228     }
229     
230 */
231 }
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