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1/*
2* Copyright (c) Contributors, http://www.openmetaverse.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 OpenSim 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*/
28using System;
29using System.Collections;
30using System.Collections.Generic;
31using System.Text;
32using System.IO;
33using System.Xml;
34using libsecondlife;
35
36namespace OpenSim.Region.Capabilities
37{
38 public class LLSDHelpers
39 {
40 public static string SerialiseLLSDReply(object obj)
41 {
42 StringWriter sw = new StringWriter();
43 XmlTextWriter writer = new XmlTextWriter(sw);
44 writer.Formatting = Formatting.None;
45 writer.WriteStartElement(String.Empty, "llsd", String.Empty);
46 LLSDHelpers.SerializeLLSDType(writer, obj);
47 writer.WriteEndElement();
48 writer.Close();
49 return sw.ToString();
50 }
51
52 public static void SerializeLLSDType(XmlTextWriter writer, object obj)
53 {
54 Type myType = obj.GetType();
55 LLSDType[] llsdattributes = (LLSDType[])myType.GetCustomAttributes(typeof(LLSDType), false);
56 if (llsdattributes.Length > 0)
57 {
58 switch (llsdattributes[0].ObjectType)
59 {
60 case "MAP":
61 writer.WriteStartElement(String.Empty, "map", String.Empty);
62 System.Reflection.FieldInfo[] fields = myType.GetFields();
63 for (int i = 0; i < fields.Length; i++)
64 {
65 object fieldValue = fields[i].GetValue(obj);
66 LLSDType[] fieldAttributes = (LLSDType[])fieldValue.GetType().GetCustomAttributes(typeof(LLSDType), false);
67 if (fieldAttributes.Length > 0)
68 {
69 writer.WriteStartElement(String.Empty, "key", String.Empty);
70 writer.WriteString(fields[i].Name);
71 writer.WriteEndElement();
72 SerializeLLSDType(writer, fieldValue);
73 }
74 else
75 {
76 writer.WriteStartElement(String.Empty, "key", String.Empty);
77 writer.WriteString(fields[i].Name);
78 writer.WriteEndElement();
79 LLSD.LLSDWriteOne(writer, fieldValue);
80 }
81 }
82 writer.WriteEndElement();
83 break;
84 case "ARRAY":
85 // LLSDArray arrayObject = obj as LLSDArray;
86 // ArrayList a = arrayObject.Array;
87 ArrayList a = (ArrayList)obj.GetType().GetField("Array").GetValue(obj);
88 if (a != null)
89 {
90 writer.WriteStartElement(String.Empty, "array", String.Empty);
91 foreach (object item in a)
92 {
93 SerializeLLSDType(writer, item);
94 }
95 writer.WriteEndElement();
96 }
97 break;
98 }
99 }
100 else
101 {
102 LLSD.LLSDWriteOne(writer, obj);
103 }
104 }
105
106 public static object DeserialiseLLSDMap(Hashtable llsd, object obj)
107 {
108 Type myType = obj.GetType();
109 LLSDType[] llsdattributes = (LLSDType[])myType.GetCustomAttributes(typeof(LLSDType), false);
110 if (llsdattributes.Length > 0)
111 {
112 switch (llsdattributes[0].ObjectType)
113 {
114 case "MAP":
115 IDictionaryEnumerator enumerator = llsd.GetEnumerator();
116 while (enumerator.MoveNext())
117 {
118 System.Reflection.FieldInfo field = myType.GetField((string)enumerator.Key);
119 if (field != null)
120 {
121 if (enumerator.Value is Hashtable)
122 {
123 object fieldValue = field.GetValue(obj);
124 DeserialiseLLSDMap((Hashtable) enumerator.Value, fieldValue);
125 }
126 else if (enumerator.Value is ArrayList)
127 {
128 object fieldValue = field.GetValue(obj);
129 fieldValue.GetType().GetField("Array").SetValue(fieldValue, enumerator.Value);
130 //TODO
131 // the LLSD map/array types in the array need to be deserialised
132 // but first we need to know the right class to deserialise them into.
133 }
134 else
135 {
136 field.SetValue(obj, enumerator.Value);
137 }
138 }
139 }
140 break;
141 }
142 }
143 return obj;
144 }
145 }
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165}
generated by cgit v1.1 at 2024-11-10 14:52:46 +0000