--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysstatemgmt/systemstatemgr/ssm/inc/ssmswptransitionengine.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,118 @@
+// Copyright (c) 2008-2009 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:
+//
+
+#ifndef __SSMSWPTRANSITIONENGINE_H__
+#define __SSMSWPTRANSITIONENGINE_H__
+
+#include <e32base.h>
+#include <ssm/ssmswp.h>
+#include <ssm/ssmcmd.hrh>
+#include "ssmswppolicyproxy.h"
+
+class CSsmSwpPolicyFrame;
+class CSsmCommandList;
+class MCleSessionProxy;
+class CSsmSwpPolicyFrame;
+
+/** 
+The CSsmSwpTransitionEngine class is responsible for:-
+- retrieving the command list from the policy
+- executing the command list
+- informing the client of the result when the commands have finished executing
+
+@internalComponent
+@released
+
+*/
+class CSsmSwpTransitionEngine : public CActive
+	{
+public:
+	// construction
+	static CSsmSwpTransitionEngine* NewL(const TSsmSwp& SwpValue);
+	~CSsmSwpTransitionEngine();
+
+	// wiring
+	void SetClientMessage(const RMessage2* aMessage);
+	void SetCleSessionProxy(MCleSessionProxy* aCleSession);
+	void SetSsmSwpPolicySession(CSsmSwpPolicyCliSession* aSsmSwpPolicySession);
+	void SetSwpPolicyFrame(CSsmSwpPolicyFrame* aPolicyFrame);
+
+	// functions
+#ifdef TEST_SSM_SERVER
+	void Submit();
+#endif
+	void Submit(TRequestStatus& aClientStatus);
+	void CompleteClientMessage(TInt aError);
+	CSession2* OriginatingSesssion() const;
+	void PerformCommandListValidation(TBool aSetting);
+	TBool InTransition() const;
+	const TSsmSwp& TransitionValue() const;
+	MCleSessionProxy* CleSessionProxy();
+
+protected:
+	//from CActive
+	void DoCancel();
+	void RunL();
+	TInt RunError(TInt aError);
+
+private:
+	CSsmSwpTransitionEngine(const TSsmSwp& SwpValue);
+	void ConstructL();
+	void DoSubmit();
+	void Start();
+	void CancelCommandExecution();
+	void DoConnectCleSessionL();
+	void DoInitialize();
+	TBool DoTransitionAllowed();
+	void DoPrepareCommandList();
+	void DoExecuteCommandList();
+	void DoValidation();
+	void DoHandleCleReturnValue();
+	void DoRunError(TInt aError);
+
+private:
+	enum TInternalActions
+		{
+		EIdle,
+		EUnConnected,
+		ESetSwpPolicyDllHandleAndInitialize,
+		ETransitionAllowed,
+		EPrepareCommandList,
+		EExecuteCommandList,
+		EWaitForCommandListExecute,
+		EWaitForHandleCleReturnValue,
+		ETransitionComplete
+		};
+		
+	/** the policy frame used to access the policy DLL functions */
+	CSsmSwpPolicyFrame* iPolicyFrame; // owned by me
+	/** the interface used to communicate with the command executor */
+	MCleSessionProxy* iCleSession; // not owned by me
+	/** The client (caller) status */
+	TRequestStatus* iClientStatus; // not owned by me
+	/** The current change in progress */
+	TSsmSwp iCurrentSwpValue; // copied to me
+	/** to keep track of the internal state for extra checking */
+	TInternalActions iNextAction; // internal to me
+	/** to inform the client of the result of the engines run */
+	RMessage2 iClientMessage;
+	TBool iPerformCommandListValidation;
+	/** The severity of the current command*/
+	TCmdErrorSeverity iSeverity;
+	CSsmSwpPolicyCliSession* iSsmSwpPolicySession; // not owned by me
+	CSsmCommandList* iCommandList;
+	};
+
+#endif