--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/multimediacommsengine/mmcesrv/mmcemediamanager/inc/mcepreconditions.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,315 @@
+/*
+* Copyright (c) 2005 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:    
+*
+*/
+
+
+
+
+#ifndef MCEPRECONDITIONS_H
+#define MCEPRECONDITIONS_H
+
+#include <e32std.h>
+#include "mcemediadefs.h"
+#include "mcesrv.h"
+#include "mcesip.h"
+
+class CMceComMediaStream;
+class CSdpMediaField;
+class CSdpAttributeField;
+class RStringF;
+class RStringPool;
+class TStringTable;
+
+/**
+ * 
+ *
+ * @lib 
+ */
+ 
+class TMcePreconditions
+    {
+
+
+public: // 
+
+    enum TState
+        {
+        ECreated,
+        ENegotiating,
+        EReserved
+        };
+        
+    enum TPreconditionType
+        {
+        EQosPreconds = 1,
+        ESecPreconds
+        };    
+        
+public: // Constructors & Destructor
+
+
+    /**
+     * C++ default constructor.
+     */
+    TMcePreconditions( CMceComMediaStream& aStream );
+    
+    virtual ~TMcePreconditions();
+    void ConstructL();
+    
+    
+public: // API
+
+    virtual void EncodeL( CSdpMediaField& aMedia ) = 0;
+    virtual TMceSipWarningCode DecodeL( CSdpMediaField& aMedia ) = 0;
+    virtual void Reserved() = 0;
+    virtual TBool ReservationNeeded() const = 0;
+    virtual TBool RemoteReservationNeeded() const = 0;
+    virtual TMcePreconditions* CloneL( CMceComMediaStream& aStream ) = 0;
+
+    TBool IsMet() const;
+    
+    TPreconditionType Type();
+    
+
+protected: //methods
+
+    virtual void DoConstructL() = 0;
+    void ConstrucL( const TMcePreconditions& aPreconditions );
+    
+protected: //data
+
+    CMceComMediaStream& iStream;
+    TState iState;
+    RStringPool iStringPool;
+    const TStringTable* iStringTable;
+    TPreconditionType iType;
+
+
+protected: //data
+
+    RStringF iKAttributeCurr;
+    RStringF iKAttributeDes;
+    RStringF iKAttributeConf;
+    RStringF iKAttributeNone;
+    RStringF iKAttributeSend;
+    RStringF iKAttributeRecv;
+    RStringF iKAttributeSendRecv;
+    RStringF iKAttributeRemote;
+    RStringF iKAttributeLocal;
+    RStringF iKAttributeMandatory;
+    RStringF iKAttributeOptional;
+    RStringF iKAttributeFailure;
+    RStringF iKAttributeUnknown;
+    RStringF iKAttributeEnd2End;
+
+private:
+	friend class TMcePreconditionsFactory;    
+        
+    };
+    
+    
+/**
+ * 
+ *
+ * @lib 
+ */
+class TMceSegmentedPreconditions : public TMcePreconditions
+    {
+
+
+public: // Constructors & Destructor
+
+
+    /**
+     * C++ default constructor.
+     */
+    TMceSegmentedPreconditions( CMceComMediaStream& aStream );
+                                
+    
+public: // from TMcePreconditions
+
+    void EncodeL( CSdpMediaField& aMedia );
+    TMceSipWarningCode DecodeL( CSdpMediaField& aMedia );
+    void Reserved();
+    TBool ReservationNeeded() const;
+    TBool RemoteReservationNeeded() const;
+    TMcePreconditions* CloneL( CMceComMediaStream& aStream );
+
+private: //from TMcePreconditions
+
+    void DoConstructL();
+
+private: //encode
+
+    void EncodeCurrentStatusL( CSdpMediaField& aMedia,
+                               RStringF aAccessNetwork ) const;
+    void EncodeDesiredStatusL( CSdpMediaField& aMedia,
+                               RStringF aAccessNetwork ) const;
+    void EncodeConfirmationL( CSdpMediaField& aMedia );
+
+    HBufC8* CurrentStausTextLC( const TDesC8& aAccessNetwork, 
+                                const TDesC8& aMediaDirection ) const;
+    HBufC8* DesiredStausTextLC( const TDesC8& aStrength, 
+                                const TDesC8& aAccessNetwork, 
+                                const TDesC8& aMediaDirection ) const;
+                                
+private: //decode
+    
+    TUint DecodeCurrentStatusL( CSdpAttributeField& aAttribute );
+    TUint DecodeDesiredStatusL( CSdpAttributeField& aAttribute );
+    TUint DecodeConfStatusL( CSdpAttributeField& aAttribute );
+    TInt ParseCurrentStatus( const TDesC8& aLine,
+                             TPtrC8& aAccessNetwork,
+                             TPtrC8& aMediaDirection );
+    TInt ParseDesiredStatus( const TDesC8& aLine,
+                             TPtrC8& aStrength,
+                             TPtrC8& aAccessNetwork,
+                             TPtrC8& aMediaDirection );
+    
+    RStringF DecodeMediaDirectionL( const TDesC8& aMediaDirection );
+    RStringF DecodeStrengthL( const TDesC8& aStrength );
+
+private:
+    
+    void SetState();
+    void SetRemoteStatus( RStringF aDirection );
+    RStringF DesiredDirection( RStringF aAccessNetwork );
+    void SetDesiredStatus( RStringF aAccessNetwork, 
+                           RStringF aDirection, 
+                           RStringF sStrength );
+    void ConstrucL( const TMceSegmentedPreconditions& aPreconditions );
+
+    
+private: //data
+
+        
+    RStringF iCurrentLocalStatus;
+    RStringF iCurrentRemoteStatus;
+    RStringF iDesiredLocalSend;
+    RStringF iDesiredLocalRecv;
+    RStringF iDesiredRemoteSend;
+    RStringF iDesiredRemoteRecv;
+    RStringF iConfirmation;
+
+    
+	//definitions for unit testing
+	MCEMM_UT_DEFINITIONS
+    
+    
+    };
+
+/**
+ * 
+ *
+ * @lib 
+ */
+class TMceSecurePreconditions : public TMcePreconditions
+    {
+
+
+public: // Constructors & Destructor
+
+
+    /**
+     * C++ default constructor.
+     */
+    TMceSecurePreconditions( CMceComMediaStream& aStream );
+                                
+    
+public: // from TMcePreconditions
+
+    void EncodeL( CSdpMediaField& aMedia );
+    TMceSipWarningCode DecodeL( CSdpMediaField& aMedia );
+    void Reserved();
+    TBool ReservationNeeded() const;
+    TBool RemoteReservationNeeded() const;
+    TMcePreconditions* CloneL( CMceComMediaStream& aStream );
+
+private: //from TMcePreconditions
+
+    void DoConstructL();
+
+private: //encode
+
+    void EncodeCurrentStatusL( CSdpMediaField& aMedia,
+                               TMceNegotiationRole aRole );
+    
+    void EncodeDesiredStatusL( CSdpMediaField& aMedia );
+    
+    void EncodeConfirmationL( CSdpMediaField& aMedia );
+
+    HBufC8* CurrentStatusTextLC( const TDesC8& aMediaDirection ) const;
+    
+    HBufC8* DesiredStatusTextLC( const TDesC8& aStrength, 
+                                 const TDesC8& aMediaDirection ) const;
+   
+                                
+protected: //decode
+    
+    TUint DecodeCurrentStatusL( CSdpAttributeField& aAttribute );
+    
+    TUint DecodeDesiredStatusL( CSdpAttributeField& aAttribute );
+    
+    TUint DecodeConfStatusL( CSdpAttributeField& aAttribute );
+    
+    TBool ParseCurrentStatus( const TDesC8& aLine,
+                              TPtrC8& aMediaDirection );
+                             
+    TBool ParseDesiredStatus( const TDesC8& aLine,
+                              TPtrC8& aStrength,
+                              TPtrC8& aMediaDirection );
+    
+    RStringF DecodeMediaDirectionL( const TDesC8& aMediaDirection );
+    
+    RStringF DecodeStrengthL( const TDesC8& aStrength );
+
+private:
+    
+    void SetState();
+    
+    void SetRemoteStatus( RStringF aDirection );
+    
+    void SetDesiredStatus( RStringF aEntity, RStringF sStrength );
+                           
+ 	TBool FindSecPreconds( CSdpMediaField& aMedia );
+ 	
+ 	TBool StrengthDowngraded( RStringF aStrength );
+    
+    void ConstrucL( const TMceSecurePreconditions& aPreconditions );
+    
+private: //data
+
+   	RStringF iCurrentLocalStatus;
+    RStringF iCurrentRemoteStatus;
+    RStringF iDesiredLocalSendRecv;
+    RStringF iDesiredRemoteSendRecv;
+    RStringF iConfirmation;
+  
+	//definitions for unit testing
+	MCEMM_UT_DEFINITIONS 
+    };
+
+
+class TMcePreconditionsFactory
+	{
+	public:
+	TMcePreconditions* CreateL( CMceComMediaStream& aMediaStream, CSdpMediaField& aMediaLine );
+	TMcePreconditions* CreateL( CMceComMediaStream& aMediaStream );
+	
+	TInt iDummy;
+	};
+
+#endif //MCEPRECONDITIONS_H