--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/ClientResolver/Resolver/src/CSdpMediaAttributeStrategy.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,173 @@
+// Copyright (c) 2006-2009 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:
+// Name          : CSdpMediaAttributeStrategy.cpp
+// Part of       : SIP Client Resolver
+// Version       : 1.0
+//
+
+
+
+#include "CSdpMediaAttributeStrategy.h"
+#include "MSipClients.h"
+#include "MSipClient.h"
+#include "sdpdocument.h"
+#include "sdpmediafield.h"
+#include "sdpattributefield.h"
+#include "sdpcodecstringconstants.h"
+#include "sdpcodecstringpool.h"
+
+// ----------------------------------------------------------------------------
+// CSdpMediaAttributeStrategy::NewLC
+// ----------------------------------------------------------------------------
+//
+CSdpMediaAttributeStrategy* CSdpMediaAttributeStrategy::NewLC(
+    const MSipClients& aSipClients)
+	{
+	CSdpMediaAttributeStrategy* self = 
+		new(ELeave)CSdpMediaAttributeStrategy(aSipClients);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	return self;
+	}
+
+// ----------------------------------------------------------------------------
+// CSdpMediaAttributeStrategy::CSdpMediaAttributeStrategy
+// ----------------------------------------------------------------------------
+//
+CSdpMediaAttributeStrategy::CSdpMediaAttributeStrategy(
+    const MSipClients& aSipClients) 
+ : CSdpStrategyBase(aSipClients)
+	{
+	}
+
+// ----------------------------------------------------------------------------
+// CSdpMediaAttributeStrategy::ConstructL
+// ----------------------------------------------------------------------------
+//
+void CSdpMediaAttributeStrategy::ConstructL()
+	{
+	CSdpStrategyBase::ConstructL();
+	}
+
+// ----------------------------------------------------------------------------
+// CSdpMediaAttributeStrategy::~CSdpMediaAttributeStrategy
+// ----------------------------------------------------------------------------
+//
+CSdpMediaAttributeStrategy::~CSdpMediaAttributeStrategy ()
+	{
+	}
+
+// ----------------------------------------------------------------------------
+// CSdpMediaAttributeStrategy::ApplyL
+// ----------------------------------------------------------------------------
+//	
+CSIPResponse* CSdpMediaAttributeStrategy::ApplyL(
+    CSdpDocument& aDocument, 
+    RArray<TUid>& aUids)
+    {	
+	RArray<TUid> uids;
+	CleanupClosePushL(uids);
+	
+    for (TInt i=0; i<aUids.Count(); i++)
+        {
+        uids.AppendL(aUids[i]);
+        }
+	
+	for (TInt i=uids.Count()-1; i>=0; i--)
+		{
+		MSipClient* client = iSipClients.GetByUID(uids[i]);
+		if (client)
+			{
+        	if (!Match(aDocument,*client))
+        	    {
+			    uids.Remove(i);
+        	    }           
+			}		
+		}
+    
+	if (uids.Count() > 0)
+	    {
+	    aUids.Reset();
+        for (TInt i=0; i<uids.Count(); i++)
+            {
+            aUids.AppendL(uids[i]);
+            }	    
+	    }
+
+    CleanupStack::PopAndDestroy(&uids);
+    return NULL;   
+    }
+ 
+// ----------------------------------------------------------------------------
+// CSdpMediaAttributeStrategy::Match
+// ----------------------------------------------------------------------------
+//
+TBool CSdpMediaAttributeStrategy::Match(
+    CSdpDocument& aDocument,
+    MSipClient& aClient)
+    {    
+	RPointerArray<CSdpMediaField>& clientMedias = 
+	    aClient.SdpDocument().MediaFields();
+	
+	RPointerArray<CSdpMediaField>& receivedMedias = 
+	    aDocument.MediaFields();	
+	  
+	for (TInt i=0; i < receivedMedias.Count(); i++)
+	    {
+	    CSdpMediaField* receivedMedia = receivedMedias[i];
+	    for (TInt j=0; j < clientMedias.Count(); j++)
+            {
+            CSdpMediaField* clientMedia = clientMedias[j];
+            if (HasMatchingAttribute(*receivedMedia,*clientMedia))
+                {
+                return ETrue;
+                }
+	        }
+	    }
+
+	return EFalse;
+	}
+    
+// ----------------------------------------------------------------------------
+// CSdpMediaAttributeStrategy::HasMatchingAttribute
+// ----------------------------------------------------------------------------
+//    
+TBool CSdpMediaAttributeStrategy::HasMatchingAttribute(
+    CSdpMediaField& aReceivedMedia,
+    CSdpMediaField& aClientMedia)
+    {
+    if (aReceivedMedia.Media() != aClientMedia.Media())
+        {
+        return EFalse;
+        }
+    
+    const RPointerArray<CSdpAttributeField>& clientAttributes = 
+	    aClientMedia.AttributeFields();	
+	
+    const RPointerArray<CSdpAttributeField>& receivedAttributes = 
+	    aReceivedMedia.AttributeFields();	
+	  
+	for (TInt i=0; i < clientAttributes.Count(); i++)
+	    {
+    	for (TInt j=0; j < receivedAttributes.Count(); j++)
+    	    {
+    	    if (*clientAttributes[i] == *receivedAttributes[j])
+    	        {
+    	        return ETrue;
+    	        }
+    	    }
+	    }    
+    
+    return EFalse;
+    }