--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/applayerprotocols/httpexamples/nwsswsptrhnd/CNwssWspTrHndDataSupplier.h	Tue Feb 02 01:09:52 2010 +0200
@@ -0,0 +1,178 @@
+// Copyright (c) 2002-2009 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:
+//
+
+/**
+ @file CNwssWspTrHndDataSupplier.h
+ @warning : This file contains Rose Model ID comments - please do not delete
+*/
+
+#ifndef __CNWSSWSPTRHNDDATASUPPLIER_H__
+#define __CNWSSWSPTRHNDDATASUPPLIER_H__
+
+// System includes
+#include <e32base.h>
+#include <http/mhttpdatasupplier.h>
+
+// User includes
+#include "mnwssoomhandler.h"
+#include <http/framework/logging.h>
+
+// Constants
+const TInt KNwssResponseDataBufferSize = 2048;
+
+// Forward class declarations
+class RWSPCOTrans;
+
+/**
+	@since			7.0
+	This class acts as a data supplier for WSP response bodies.  It is created when the
+	T-MethodResult.ind PDU is received, and is passed to the client to allow them to extract
+	the result data from the WAP Stack.
+ */
+
+//##ModelId=3C4C46D00163
+class CNwssWspTrHndDataSupplier : public CBase, public MHTTPDataSupplier
+	{
+public: // methods
+
+/**Factory construction.  Creates a new data supplier, associated with the
+					supplied WAP stack transaction handle.
+	@since			7.0
+	@param			aStackTrans			(in) The WAP Stack transaction from which the response data is
+											 to be extracted.
+	@param			aOomHandler			(in) A handler used in OOM situations that occur when
+											 invocations on the WAP stack fail with KErrNoMemory.
+	@leave			System wide errors, e.g. KErrNoMemory.
+ */
+	//##ModelId=3C4C46D001C8
+	static CNwssWspTrHndDataSupplier* NewL(RWSPCOTrans& aStackTrans, MNwssOomHandler& aOomHandler);
+
+/**Destructor.
+	@since			7.0
+ */
+	//##ModelId=3C4C46D001C7
+	virtual ~CNwssWspTrHndDataSupplier();
+
+private: // methods inherited from MHTTPDataSupplier
+
+/**Obtain a data part from the supplier.  The data is guaranteed to survive until a call
+					is made to ReleaseData().
+	@since			7.0
+	@param			aDataPart	(in) the data part
+	@return			ETrue if this is the last part. EFalse otherwise
+ */
+	//##ModelId=3C4C46D001BE
+	virtual TBool GetNextDataPart(TPtrC8& aDataPart);
+
+/**Release the current data part being held at the data
+					supplier.  This call indicates to the supplier that the part
+					is no longer needed, and another one can be supplied, if
+					appropriate.
+	@since			7.0
+ */
+	//##ModelId=3C4C46D001BD
+	virtual void ReleaseData();
+
+/**Obtain the overall size of the data being supplied, if known
+					to the supplier.  Where a body of data is supplied in several
+					parts this size will be the sum of all the part sizes. If
+					the size is not known, KErrNotFound is returned; in this case
+					the client must use the return code of GetNextDataPart to find
+					out when the data is complete.
+	@since			7.0
+	@return			A size in bytes, or KErrNotFound if the size is not known.
+ */
+	//##ModelId=3C4C46D001B4
+	virtual TInt OverallDataSize();
+
+/**Reset the data supplier.  This indicates to the data supplier that it should
+					return to the first part of the data.  This could be used in a situation where
+					the data consumer has encountered an error and needs the data to be supplied
+					afresh.  Even if the last part has been supplied (i.e. GetNextDataPart has
+					returned ETrue), the data supplier should reset to the first part.
+				
+					If the supplier cannot reset it should return an error code; otherwise it should
+					return KErrNone, where the reset will be assumed to have succeeded
+ 	@since			7.0
+	@return			KErrNone, if reset is supported and was sucessfull; or KErrNotSupported otherwise.
+ */
+	//##ModelId=3C4C46D001B3
+	virtual TInt Reset();
+
+private: // methods
+
+/**Normal constructor.
+	@since			7.0
+	@param			aStackTrans			(in) The WAP Stack transaction from which the response data is
+											 to be extracted.
+	@param			aOomHandler			(in) A handler used in OOM situations that occur when
+											 invocations on the WAP stack fail with KErrNoMemory.
+ */
+	//##ModelId=3C4C46D001AA
+	CNwssWspTrHndDataSupplier(RWSPCOTrans& aStackTrans, MNwssOomHandler& aOomHandler);
+
+/**Second phase construction, allocates the buffer to be used by the data supplier.
+	@since			7.0
+ */
+	//##ModelId=3C4C46D001A9
+	void ConstructL();
+
+/**Extracts the response body data from the transaction.
+	@since			7.0
+	@return			An error code from the WAP stack.
+*/
+	//##ModelId=3C9B094D0100
+	TInt ExtractBodyData();
+
+private:
+
+	/** Logger handle
+	*/
+	__DECLARE_LOG
+
+	/** The WAP stack transaction from which response data is being extracted
+	*/
+	//##ModelId=3C4C46D00197
+	RWSPCOTrans& iStackTrans;
+
+	/** The handler provided for use in out-of-memory situations
+	*/
+	//##ModelId=3C9B094D00F6
+	MNwssOomHandler& iOomHandler;
+
+	/** The transaction ID for iStackTrans
+	*/
+	//##ModelId=3C9B094D00E2
+	RWSPCOTrans::TTransID iStackTransId;
+
+	/** A buffer used to hold the data received from the WAP proxy
+	*/
+	//##ModelId=3C4DA474022E
+	TBuf8<KNwssResponseDataBufferSize> iBuffer;
+
+	/** The overall size of the response.
+	*/
+	//##ModelId=3C4DA4630297
+	TInt iOverallDataSize;
+
+	/** The number of bytes remaining to be extracted from the body response in the
+		WAP stack
+	*/
+	//##ModelId=3C4DA44F0375
+	TInt iRemainingBytes;
+	};
+
+
+#endif // __CNWSSWSPTRHNDDATASUPPLIER_H__