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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.IO;
31using System.Reflection;
32using System.Xml;
33using libsecondlife;
34
35namespace OpenSim.Region.Capabilities
36{
37 public class LLSDHelpers
38 {
39 public static string SerialiseLLSDReply(object obj)
40 {
41 StringWriter sw = new StringWriter();
42 XmlTextWriter writer = new XmlTextWriter(sw);
43 writer.Formatting = Formatting.None;
44 writer.WriteStartElement(String.Empty, "llsd", String.Empty);
45 SerializeLLSDType(writer, obj);
46 writer.WriteEndElement();
47 writer.Close();
48 return sw.ToString();
49 }
50
51 public static void SerializeLLSDType(XmlTextWriter writer, object obj)
52 {
53 Type myType = obj.GetType();
54 LLSDType[] llsdattributes = (LLSDType[])myType.GetCustomAttributes(typeof(LLSDType), false);
55 if (llsdattributes.Length > 0)
56 {
57 switch (llsdattributes[0].ObjectType)
58 {
59 case "MAP":
60 writer.WriteStartElement(String.Empty, "map", String.Empty);
61 FieldInfo[] fields = myType.GetFields();
62 for (int i = 0; i < fields.Length; i++)
63 {
64 object fieldValue = fields[i].GetValue(obj);
65 LLSDType[] fieldAttributes = (LLSDType[])fieldValue.GetType().GetCustomAttributes(typeof(LLSDType), false);
66 if (fieldAttributes.Length > 0)
67 {
68 writer.WriteStartElement(String.Empty, "key", String.Empty);
69 writer.WriteString(fields[i].Name);
70 writer.WriteEndElement();
71 SerializeLLSDType(writer, fieldValue);
72 }
73 else
74 {
75 writer.WriteStartElement(String.Empty, "key", String.Empty);
76 writer.WriteString(fields[i].Name);
77 writer.WriteEndElement();
78 LLSD.LLSDWriteOne(writer, fieldValue);
79 }
80 }
81 writer.WriteEndElement();
82 break;
83 case "ARRAY":
84 // LLSDArray arrayObject = obj as LLSDArray;
85 // ArrayList a = arrayObject.Array;
86 ArrayList a = (ArrayList)obj.GetType().GetField("Array").GetValue(obj);
87 if (a != null)
88 {
89 writer.WriteStartElement(String.Empty, "array", String.Empty);
90 foreach (object item in a)
91 {
92 SerializeLLSDType(writer, item);
93 }
94 writer.WriteEndElement();
95 }
96 break;
97 }
98 }
99 else
100 {
101 LLSD.LLSDWriteOne(writer, obj);
102 }
103 }
104
105 public static object DeserialiseLLSDMap(Hashtable llsd, object obj)
106 {
107 Type myType = obj.GetType();
108 LLSDType[] llsdattributes = (LLSDType[])myType.GetCustomAttributes(typeof(LLSDType), false);
109 if (llsdattributes.Length > 0)
110 {
111 switch (llsdattributes[0].ObjectType)
112 {
113 case "MAP":
114 IDictionaryEnumerator enumerator = llsd.GetEnumerator();
115 while (enumerator.MoveNext())
116 {
117 FieldInfo field = myType.GetField((string)enumerator.Key);
118 if (field != null)
119 {
120 if (enumerator.Value is Hashtable)
121 {
122 object fieldValue = field.GetValue(obj);
123 DeserialiseLLSDMap((Hashtable) enumerator.Value, fieldValue);
124 }
125 else if (enumerator.Value is ArrayList)
126 {
127 object fieldValue = field.GetValue(obj);
128 fieldValue.GetType().GetField("Array").SetValue(fieldValue, enumerator.Value);
129 //TODO
130 // the LLSD map/array types in the array need to be deserialised
131 // but first we need to know the right class to deserialise them into.
132 }
133 else
134 {
135 field.SetValue(obj, enumerator.Value);
136 }
137 }
138 }
139 break;
140 }
141 }
142 return obj;
143 }
144 }
145
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164}
generated by cgit v1.1 at 2024-07-03 08:17:33 +0000