diff -r 000000000000 -r 818e61de6cd1 crashanalysercmd/Libraries/Engine/CrashItemLib/PluginAPI/Source/CFFSourceAndConfidence.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/Libraries/Engine/CrashItemLib/PluginAPI/Source/CFFSourceAndConfidence.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,109 @@
+/*
+* 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.IO;
+using System.Collections;
+using System.Collections.Specialized;
+using System.Text;
+using SymbianUtils;
+using CrashItemLib;
+
+namespace CrashItemLib.PluginAPI
+{
+    public abstract class CFFSourceAndConfidence : CFFSource, IComparable<CFFSourceAndConfidence>
+	{
+        #region Constructors
+        protected CFFSourceAndConfidence( FileInfo aFile )
+            : base( aFile )
+		{
+            Level = int.MinValue;
+		}
+        #endregion
+        
+        #region API
+        public void SetCertain()
+        {
+            Level = int.MaxValue;
+        }
+        #endregion
+
+        #region Properties
+        public int Level
+        {
+            get { return iLevel; }
+            set { iLevel = value; }
+        }
+
+        public bool IsSupported
+        {
+            get { return !IsUnsupported && MasterFileName != string.Empty && Reader != null; }
+        }
+
+        public bool IsCertain
+        {
+            get { return Level == int.MaxValue; }
+        }
+
+        public bool IsUnsupported
+        {
+            get
+            {
+                bool ret = false;
+
+                // The source cannot be processed if:
+                //
+                // a) Type is not supported
+                // b) The confidence level is "no confidence whatsoever" or
+                // c) There is no reader
+                //
+                if ( Level == int.MinValue )
+                {
+                    ret = true; // (b)
+                }
+                else if ( Reader == null )
+                {
+                    ret = true; // (c)
+                }
+                else if ( OpType == TReaderOperationType.EReaderOpTypeNotSupported )
+                {
+                    ret = true; // (a)
+                }
+
+                return ret;
+            }
+        }
+        #endregion
+
+        #region From IComparable<CFFConfidenceLevel>
+        public int CompareTo( CFFSourceAndConfidence aOther )
+        {
+            int ret = 1;
+            //
+            if ( aOther != null )
+            {
+                ret = Level.CompareTo( aOther.Level );
+            }
+            //
+            return ret;
+        }
+        #endregion
+
+		#region Data members
+        private int iLevel = int.MinValue;
+		#endregion
+    }
+}