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using System;
using System.Collections.Generic;
using System.Text;
using OpenMetaverse;
namespace OpenSim.Data
{
public static class DBGuid
{
/// <summary>This function converts a value returned from the database in one of the
/// supported formats into a UUID. This function is not actually DBMS-specific right
/// now
///
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public static UUID FromDB(object id)
{
if( (id == null) || (id == DBNull.Value))
return UUID.Zero;
if (id.GetType() == typeof(Guid))
return new UUID((Guid)id);
if (id.GetType() == typeof(byte[]))
{
if (((byte[])id).Length == 0)
return UUID.Zero;
else if (((byte[])id).Length == 16)
return new UUID((byte[])id, 0);
}
else if (id.GetType() == typeof(string))
{
if (((string)id).Length == 0)
return UUID.Zero;
else if (((string)id).Length == 36)
return new UUID((string)id);
}
throw new Exception("Failed to convert db value to UUID: " + id.ToString());
}
}
}
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