72 lines
2.9 KiB
C#
72 lines
2.9 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using OpenMetaverse;
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namespace OpenSim.Data
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{
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public static class DBGuid
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{
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/// <summary>This function converts a value returned from the database in one of the
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/// supported formats into a UUID. This function is not actually DBMS-specific right
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/// now
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///
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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public static UUID FromDB(object id)
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{
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if ((id == null) || (id == DBNull.Value))
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return UUID.Zero;
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if (id.GetType() == typeof(Guid))
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return new UUID((Guid)id);
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if (id.GetType() == typeof(byte[]))
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{
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if (((byte[])id).Length == 0)
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return UUID.Zero;
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else if (((byte[])id).Length == 16)
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return new UUID((byte[])id, 0);
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}
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else if (id.GetType() == typeof(string))
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{
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if (((string)id).Length == 0)
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return UUID.Zero;
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else if (((string)id).Length == 36)
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return new UUID((string)id);
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}
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throw new Exception("Failed to convert db value to UUID: " + id.ToString());
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}
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}
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}
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