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- /*
- * 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 OpenSim 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.Reflection;
- using log4net;
- using OpenMetaverse;
- using OpenSim.Framework;
- using OpenSim.Region.Framework.Interfaces;
- using NHibernate;
- using NHibernate.Criterion;
- using System.Collections;
- using System;
- namespace OpenSim.Data.NHibernate
- {
- /// <summary>
- /// A User storage interface for the DB4o database system
- /// </summary>
- public class NHibernateEstateData : IEstateDataStore
- {
- #region Fields
- private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
- private NHibernateManager manager;
- public NHibernateManager Manager
- {
- get
- {
- return manager;
- }
- }
- public string Name
- {
- get { return "NHibernateEstateData"; }
- }
- public string Version
- {
- get { return "0.1"; }
- }
- #endregion
- #region Startup and shutdown.
- public void Initialise()
- {
- m_log.Info("[NHIBERNATE]: " + Name + " cannot be default-initialized!");
- throw new PluginNotInitialisedException(Name);
- }
- public void Initialise(string connect)
- {
- m_log.InfoFormat("[NHIBERNATE] Initializing " + Name + ".");
- manager = new NHibernateManager(connect, "EstateStore");
- }
- public void Dispose() { }
- #endregion
- #region IEstateDataStore Members
- public EstateSettings LoadEstateSettings(UUID regionID)
- {
- EstateRegionLink link = LoadEstateRegionLink(regionID);
- // Ensure that estate settings exist for the link
- if (link != null)
- {
- if (manager.GetWithStatefullSession(typeof(EstateSettings), link.EstateID) == null)
- {
- // Delete broken link
- manager.Delete(link);
- link = null;
- }
- }
- // If estate link does not exist create estate settings and link it to region.
- if (link == null)
- {
- EstateSettings estateSettings = new EstateSettings();
- //estateSettings.EstateOwner = UUID.Random();
- //estateSettings.BlockDwell = false;
- object identifier = manager.Insert(estateSettings);
- if (identifier == null)
- {
- // Saving failed. Error is logged in the manager.
- return null;
- }
- uint estateID = (uint)identifier;
- link = new EstateRegionLink();
- link.EstateRegionLinkID = UUID.Random();
- link.RegionID = regionID;
- link.EstateID = estateID;
- manager.InsertWithStatefullSession(link);
- }
- // Load estate settings according to the existing or created link.
- return (EstateSettings)manager.GetWithStatefullSession(typeof(EstateSettings), link.EstateID);
- }
- public void StoreEstateSettings(EstateSettings estateSettings)
- {
- // Estates are always updated when stored.
- // Insert is always done via. load method as with the current API
- // this is explicitly the only way to create region link.
- manager.UpdateWithStatefullSession(estateSettings);
- }
- #endregion
- #region Private Utility Methods
- private EstateRegionLink LoadEstateRegionLink(UUID regionID)
- {
- ICriteria criteria = manager.GetSession().CreateCriteria(typeof(EstateRegionLink));
- criteria.Add(Expression.Eq("RegionID", regionID));
- IList links = criteria.List();
- // Fail fast if more than one estate links exist
- if (links.Count > 1)
- {
- m_log.Error("[NHIBERNATE]: Region had more than one estate linked: " + regionID);
- throw new Exception("[NHIBERNATE]: Region had more than one estate linked: " + regionID);
- }
- if (links.Count == 1)
- {
- return (EstateRegionLink)links[0];
- }
- else
- {
- return null;
- }
- }
- #endregion
- }
- }
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