--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianDebugLib/PluginAPI/DbgPluginEngine.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,125 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+* 
+* Description:
+*
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using SymbianUtils;
+using SymbianUtils.Tracer;
+using SymbianDebugLib.Engine;
+using SymbianDebugLib.Entity;
+
+namespace SymbianDebugLib.PluginAPI
+{
+    public abstract class DbgPluginEngine : DisposableObject, ITracer
+    {
+        #region Constructors
+        protected DbgPluginEngine( DbgEngine aEngine )
+        {
+            iEngine = aEngine;
+        }
+        #endregion
+
+        #region API
+        public void Clear()
+        {
+            foreach ( DbgPluginView view in iViews )
+            {
+                view.Dispose();
+            }
+            System.Diagnostics.Debug.Assert( iViews.Count == 0 );
+            iViews.Clear();
+            //
+            DoClear();
+        }
+
+        public bool IsSupported( string aFileName )
+        {
+            string notNeeded;
+            return IsSupported( aFileName, out notNeeded );
+        }
+
+        public DbgPluginView CreateView( string aName )
+        {
+            DbgPluginView ret = this.DoCreateView( aName );
+            return ret;
+        }
+        #endregion
+
+        #region API - framework
+        public abstract bool IsReady
+        {
+            get;
+        }
+
+        public abstract string Name
+        {
+            get;
+        }
+
+        public abstract DbgPluginPrimer CreatePrimer();
+
+        public abstract bool IsSupported( string aFileName, out string aType );
+
+        public virtual object CustomOperation( string aName, object aParam1, object aParam2 )
+        {
+            throw new NotSupportedException();
+        }
+
+        public virtual void PrepareToPrime( DbgEntityList aEntities )
+        {
+        }
+
+        protected abstract DbgPluginView DoCreateView( string aName );
+
+        protected abstract void DoClear();
+        #endregion
+
+        #region API - views
+        internal void CloseView( DbgPluginView aView )
+        {
+            iViews.Remove( aView );
+        }
+        #endregion
+
+        #region Properties
+        public DbgEngine Engine
+        {
+            get { return iEngine; }
+        }
+        #endregion
+
+        #region Internal methods
+        #endregion
+
+        #region ITracer Members
+        public void Trace( string aMessage )
+        {
+            iEngine.Trace( aMessage );
+        }
+
+        public void Trace( string aFormat, params object[] aParams )
+        {
+            iEngine.Trace( aFormat, aParams );
+        }
+        #endregion
+
+        #region Data members
+        private readonly DbgEngine iEngine;
+        private List<DbgPluginView> iViews = new List<DbgPluginView>();
+        #endregion
+    }
+}