From f60bc970eb925cd245cc77b1ae700b28d4589163 Mon Sep 17 00:00:00 2001
From: MW
Date: Thu, 8 Mar 2007 13:21:24 +0000
Subject: Another attemp to fix the Session Logout bug World map data is now
 saved in database and recovered on startup. Primitives are now backed up to a
 local database and reloaded on startup.

---
 .../Db4LocalStorage/Db4LocalStorage.cs             | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 src/LocalStorage/Db4LocalStorage/Db4LocalStorage.cs

(limited to 'src/LocalStorage/Db4LocalStorage/Db4LocalStorage.cs')

diff --git a/src/LocalStorage/Db4LocalStorage/Db4LocalStorage.cs b/src/LocalStorage/Db4LocalStorage/Db4LocalStorage.cs
new file mode 100644
index 0000000..9dc81a1
--- /dev/null
+++ b/src/LocalStorage/Db4LocalStorage/Db4LocalStorage.cs
@@ -0,0 +1,119 @@
+/*
+* Copyright (c) OpenSim project, http://sim.opensecondlife.org/
+*
+* 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 <organization> 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 <copyright holder> ``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 <copyright holder> 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 Db4objects.Db4o;
+using Db4objects.Db4o.Query;
+using libsecondlife;
+using GridInterfaces;
+
+namespace Db4LocalStorage
+{
+	/// <summary>
+	/// 
+	/// </summary>
+	public class Db4LocalStorage : ILocalStorage
+	{
+		private IObjectContainer db;
+		
+		public Db4LocalStorage()
+		{
+			try 
+			{
+				db = Db4oFactory.OpenFile("localworld.yap");
+				ServerConsole.MainConsole.Instance.WriteLine("Db4LocalStorage creation");
+			}
+			catch(Exception e) 
+			{
+				db.Close();
+				ServerConsole.MainConsole.Instance.WriteLine("Db4LocalStorage :Constructor - Exception occured");
+				ServerConsole.MainConsole.Instance.WriteLine(e.ToString());
+			}
+		}
+		
+		public void StorePrim(PrimStorage prim)
+		{
+			IObjectSet result = db.Query(new UUIDQuery(prim.FullID));
+			if(result.Count>0)
+			{
+				//prim already in storage
+				//so update it
+				PrimStorage found = (PrimStorage) result.Next();
+				found.Data = prim.Data;
+				found.Position = prim.Position;
+				found.Rotation = prim.Rotation;
+				db.Set(found);
+			}
+			else
+			{
+				//not in storage
+				db.Set(prim);
+			}
+		}
+		
+		public void RemovePrim(LLUUID primID)
+		{
+			IObjectSet result = db.Query(new UUIDQuery(primID));
+			if(result.Count>0)
+			{
+				PrimStorage found = (PrimStorage) result.Next();
+				db.Delete(found);
+			}
+		}
+		
+		
+		public void LoadPrimitives(ILocalStorageReceiver receiver)
+		{
+			IObjectSet result = db.Get(typeof(PrimStorage));
+			ServerConsole.MainConsole.Instance.WriteLine("Db4LocalStorage.cs: LoadPrimitives() - number of prims in storages is "+result.Count);
+			foreach (PrimStorage prim in result) {
+				receiver.PrimFromStorage(prim);
+			}
+		}
+		
+		public void ShutDown()
+		{
+			db.Commit();
+			db.Close();
+		}
+	}
+	
+	public class UUIDQuery : Predicate
+	{
+		private LLUUID _findID;
+		
+		public UUIDQuery(LLUUID find)
+		{
+			_findID = find;
+		}
+		public bool Match(PrimStorage prim)
+		{
+			return (prim.FullID == _findID);
+		}
+	}
+	
+}
-- 
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