clockwerk-opensim-stable – Blame information for rev 1

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1 vero 1 /*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27  
28 using System;
29 using System.IO;
30 using System.Xml;
31  
32 namespace OpenSim.Framework.Configuration.XML
33 {
34 public class XmlConfiguration : IGenericConfig
35 {
36 private XmlDocument doc;
37 private XmlNode rootNode;
38 private XmlNode configNode;
39 private string fileName;
40 private bool createdFile = false;
41  
42 public void SetFileName(string file)
43 {
44 fileName = file;
45 }
46  
47 private void LoadDataToClass()
48 {
49 rootNode = doc.SelectSingleNode("Root");
50 if (null == rootNode)
51 throw new Exception("Error: Invalid .xml File. Missing <Root>");
52  
53 configNode = rootNode.SelectSingleNode("Config");
54 if (null == configNode)
55 throw new Exception("Error: Invalid .xml File. <Root> should contain a <Config>");
56 }
57  
58 public void LoadData()
59 {
60 lock (this)
61 {
62 doc = new XmlDocument();
63 if (File.Exists(fileName))
64 {
65 XmlTextReader reader = new XmlTextReader(fileName);
66 reader.WhitespaceHandling = WhitespaceHandling.None;
67 doc.Load(reader);
68 reader.Close();
69 }
70 else
71 {
72 createdFile = true;
73 rootNode = doc.CreateNode(XmlNodeType.Element, "Root", String.Empty);
74 doc.AppendChild(rootNode);
75 configNode = doc.CreateNode(XmlNodeType.Element, "Config", String.Empty);
76 rootNode.AppendChild(configNode);
77 }
78  
79 LoadDataToClass();
80  
81 if (createdFile)
82 {
83 Commit();
84 }
85 }
86 }
87  
88 public void LoadDataFromString(string data)
89 {
90 doc = new XmlDocument();
91 doc.LoadXml(data);
92  
93 LoadDataToClass();
94 }
95  
96 public string GetAttribute(string attributeName)
97 {
98 string result = null;
99 if (configNode.Attributes[attributeName] != null)
100 {
101 result = ((XmlAttribute) configNode.Attributes.GetNamedItem(attributeName)).Value;
102 }
103 return result;
104 }
105  
106 public bool SetAttribute(string attributeName, string attributeValue)
107 {
108 if (configNode.Attributes[attributeName] != null)
109 {
110 ((XmlAttribute) configNode.Attributes.GetNamedItem(attributeName)).Value = attributeValue;
111 }
112 else
113 {
114 XmlAttribute attri;
115 attri = doc.CreateAttribute(attributeName);
116 attri.Value = attributeValue;
117 configNode.Attributes.Append(attri);
118 }
119 return true;
120 }
121  
122 public void Commit()
123 {
124 if (fileName == null || fileName == String.Empty)
125 return;
126  
127 if (!Directory.Exists(Util.configDir()))
128 {
129 Directory.CreateDirectory(Util.configDir());
130 }
131 doc.Save(fileName);
132 }
133  
134 public void Close()
135 {
136 configNode = null;
137 rootNode = null;
138 doc = null;
139 }
140 }
141 }