/* * Copyright (c) Contributors, http://opensimulator.org/ * See CONTRIBUTORS.TXT for a full list of copyright holders. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the OpenSimulator Project nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 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()); } } }