From dde32f1130f83f9471fea474b1ebc9e0520be561 Mon Sep 17 00:00:00 2001
From: Justin Clarke Casey
Date: Tue, 2 Dec 2008 15:22:58 +0000
Subject: * Reapply http://opensimulator.org/mantis/view.php?id=2710 * This
 patch gets NHibernate working *** PLEASE NOTE: This patch now requires the
 libmono-oracle2.0-cil library to be installed on Ubuntu (to stop the
 System.Data.Oracle missing failure) *** * Not sure what the dependency is on
 other distros.  Adding this info to
 http://opensimulator.org/wiki/Build_Instructions would be most welcome * Adds
 Castle.* libraries that were missing last time (note, dlls have been added
 from http://downloads.sourceforge.net/nhibernate/NHibernate-2.0.1.GA-bin.zip)

---
 OpenSim/Data/NHibernate/NHibernateManager.cs | 142 +++++++++++++++++++++++----
 1 file changed, 124 insertions(+), 18 deletions(-)

(limited to 'OpenSim/Data/NHibernate/NHibernateManager.cs')

diff --git a/OpenSim/Data/NHibernate/NHibernateManager.cs b/OpenSim/Data/NHibernate/NHibernateManager.cs
index 161ec1d..36d84e2 100644
--- a/OpenSim/Data/NHibernate/NHibernateManager.cs
+++ b/OpenSim/Data/NHibernate/NHibernateManager.cs
@@ -25,35 +25,141 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+using System;
 using System.Reflection;
+using System.IO;
 using log4net;
 using NHibernate;
+using NHibernate.Cfg;
+using NHibernate.Mapping.Attributes;
+using NHibernate.Tool.hbm2ddl;
+using OpenMetaverse;
+using Environment = NHibernate.Cfg.Environment;
 
 namespace OpenSim.Data.NHibernate
 {
-    internal class NHibernateManager
+    public class NHibernateManager
     {
-        // private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
-        // private ISessionFactory factory;
-        // private ISession session;
-        // private ITransaction transaction;
+        private string dialect;
+        private Configuration cfg;
+        private ISessionFactory factory;
+        private ISession session;
 
-        public NHibernateManager()
+        public NHibernateManager(string connect, string store)
         {
-            // This is stubbing for now, it will become dynamic later and support different db backends
-//             NHibernate.Cfg.Configuration cfg = new NHibernate.Cfg.Configuration();
-//             cfg.Properties[NHibernate.Cfg.Environment.ConnectionProvider] =
-//                 "NHibernate.Connection.DriverConnectionProvider";
-//             cfg.Properties[NHibernate.Cfg.Environment.Dialect] =
-//                 "NHibernate.Dialect.SQLite";
-//             cfg.Properties[NHibernate.Cfg.Environment.ConnectionDriver] =
-//                 "NHibernate.Driver.SqliteClientDriver";
-//             cfg.Properties[NHibernate.Cfg.Environment.ConnectionString] =
-//                 "URI=file:opensim-nh.db,version=3";
-
-//             factory = cfg.BuildSessionFactory();
+
+            // Split out the dialect, driver, and connect string
+            char[] split = { ';' };
+            string[] parts = connect.Split(split, 3);
+            if (parts.Length != 3)
+            {
+                // TODO: make this a real exception type
+                throw new Exception("Malformed Inventory connection string '" + connect + "'");
+            }
+
+            dialect = parts[0];
+
+            // NHibernate setup
+            cfg = new Configuration();
+            cfg.SetProperty(Environment.ConnectionProvider,
+                            "NHibernate.Connection.DriverConnectionProvider");
+            cfg.SetProperty(Environment.Dialect,
+                            "NHibernate.Dialect." + dialect);
+            cfg.SetProperty(Environment.ConnectionDriver,
+                            "NHibernate.Driver." + parts[1]);
+            cfg.SetProperty(Environment.ConnectionString, parts[2]);
+            cfg.AddAssembly("OpenSim.Data.NHibernate");
+
+            //To create sql file uncomment code below and write the name of the file            
+            //SchemaExport exp = new SchemaExport(cfg);
+            //exp.SetOutputFile("nameofthefile.sql");
+            //exp.Create(false, true);
+
+            HbmSerializer.Default.Validate = true;
+            using (MemoryStream stream =
+                   HbmSerializer.Default.Serialize(Assembly.GetExecutingAssembly()))
+                cfg.AddInputStream(stream);
+
+            factory = cfg.BuildSessionFactory();
+            session = factory.OpenSession();
+
+            Assembly assem = GetType().Assembly;
+            Migration m = new Migration((System.Data.Common.DbConnection)factory.ConnectionProvider.GetConnection(), assem, dialect, store);
+            m.Update();
         }
 
+        public object Load(Type type, UUID uuid)
+        {
+            object obj = null;
+            try
+            {
+                obj = session.Load(type, uuid);
+            }
+            catch (Exception)
+            {
+                m_log.ErrorFormat("[NHIBERNATE] {0} not found with ID {1} ", type.Name, uuid);
+            }
+            return obj;
+            
+        }
+
+        public bool Save(object obj)
+        {
+            try
+            {
+                session.BeginTransaction();
+                session.Save(obj);
+                session.Transaction.Commit();
+                session.Flush();
+                return true;
+            }
+            catch (Exception e)
+            {
+               m_log.Error("[NHIBERNATE] issue saving object ", e);
+            }
+            return false;
+        }
+
+        public bool Update(object obj)
+        {
+            try
+            {
+                session.BeginTransaction();
+                session.Update(obj);
+                session.Transaction.Commit();
+                session.Flush();
+                return true;
+            }
+            catch (Exception e)
+            {
+                m_log.Error("[NHIBERNATE] issue updating object ", e);
+            }
+            return false;
+        }
+
+        public bool Delete(object obj)
+        {
+            try
+            {
+                session.BeginTransaction();
+                session.Delete(obj);
+                session.Transaction.Commit();
+                session.Flush();
+                return true;
+            }
+            catch (Exception e)
+            {
+                
+                m_log.Error("[NHIBERNATE] issue deleting object ", e);
+            }
+            return false;
+        }
+
+        public ISession GetSession()
+        {
+            return session;
+        }
     }
 }
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