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authorAlexRa2010-05-18 14:19:19 +0300
committerAlexRa2010-05-19 01:32:50 +0300
commita27d49b1887700d78498ee0a369c2b3d93d2642c (patch)
treee5780142c8a7e939914a5e0f1535c438f2023ce1 /OpenSim/Data/DBGuids.cs
parentLooks like the new files were never added to prebuild.xml (diff)
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Added DBGuids.cs (static func DBGuid.FromDB()
This DBMS-independent function to be used converting UUIDs from whatever format used in the DB (string/binary/Guid). This is mostly needed for MySQL, as in MSSQL they are always UNIQUEIDENTIFIERs and in SQLite always strings (but would look better if we use it there anyway).
Diffstat (limited to 'OpenSim/Data/DBGuids.cs')
-rw-r--r--OpenSim/Data/DBGuids.cs44
1 files changed, 44 insertions, 0 deletions
diff --git a/OpenSim/Data/DBGuids.cs b/OpenSim/Data/DBGuids.cs
new file mode 100644
index 0000000..1a13e06
--- /dev/null
+++ b/OpenSim/Data/DBGuids.cs
@@ -0,0 +1,44 @@
1using System;
2using System.Collections.Generic;
3using System.Text;
4using OpenMetaverse;
5
6namespace OpenSim.Data
7{
8
9 public static class DBGuid
10 {
11 /// <summary>This function converts a value returned from the database in one of the
12 /// supported formats into a UUID. This function is not actually DBMS-specific right
13 /// now
14 ///
15 /// </summary>
16 /// <param name="id"></param>
17 /// <returns></returns>
18 public static UUID FromDB(object id)
19 {
20 if( (id == null) || (id == DBNull.Value))
21 return UUID.Zero;
22
23 if (id.GetType() == typeof(Guid))
24 return new UUID((Guid)id);
25
26 if (id.GetType() == typeof(byte[]))
27 {
28 if (((byte[])id).Length == 0)
29 return UUID.Zero;
30 else if (((byte[])id).Length == 36)
31 return new UUID((byte[])id, 0);
32 }
33 else if (id.GetType() == typeof(string))
34 {
35 if (((string)id).Length == 0)
36 return UUID.Zero;
37 else if (((string)id).Length == 36)
38 return new UUID((string)id);
39 }
40
41 throw new Exception("Failed to convert db value to UUID: " + id.ToString());
42 }
43 }
44}