// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).+
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// All rights reserved.+
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// This component and the accompanying materials are made available+
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// under the terms of "Eclipse Public License v1.0"+
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// which accompanies this distribution, and is available+
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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//+
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// Initial Contributors:+
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// Nokia Corporation - initial contribution.+
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//+
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// Contributors:+
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//+
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// Description:+
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//+
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+
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#ifndef __THTTPHEADERVALUEVARIANT_H__+
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#define __THTTPHEADERVALUEVARIANT_H__+
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+
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#include <http.h>+
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class RStringPool;+
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+
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/**+
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 * THttpHeaderValueVariant represents a value found in the header element. The value of the header element +
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 * can be of the various datatype like integer, string and datetime hence THttpHeaderValueVariant is a container+
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 * for them.  +
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 * +
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 * @publishedAll+
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 * @prototype+
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 */+
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+
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class THttpHeaderValueVariant+
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	{+
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friend class THttpHeaderParamIterator;+
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friend class THttpHeaderElementIterator;+
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friend class THttpHeaderIterator;+
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friend class CHttpClient;+
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friend class CHttpClientTransaction;+
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public:+
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    /**+
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     * Enumeration type.+
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     * +
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     */+
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	typedef enum+
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			{+
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			ENoType 			= 0x00,  // No concrete datatype+
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			EIntType			= 0x01,  // Integer datatype+
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			EStrType 			=	0x02, // String datatype+
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			EDateTimeType	= 0x03 // Datetime datatype+
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			}THttpVariantType;+
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public:+
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	/**+
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	 * Default constructor+
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	 */+
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	inline THttpHeaderValueVariant();+
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	/**+
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	 * Constructor +
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	 */+
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	inline THttpHeaderValueVariant(TInt aIntVariant);+
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	inline THttpHeaderValueVariant(const TDesC8& aStrVariant);+
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	inline THttpHeaderValueVariant(TDateTime aDateVariant);+
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	/**+
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	 * Set the integer value+
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	 * @param aIntVariant Integer value+
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	 */+
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	inline void SetInt(TInt aIntVariant);+
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	/**+
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	 * Set the string value+
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	 * @param aStrVariant String value+
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	 */+
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	inline void SetStr(const TDesC8& aStrVariant);+
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	/**+
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	 * Set the datettime value+
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	 * @param aDateVariant Datettime value+
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	 */+
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	inline void SetDateTime(TDateTime aDateVariant);+
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	+
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	/**+
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	 * Return the type that is represented by "this" object+
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	 * +
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	 */+
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	inline THttpVariantType Type() const;+
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	+
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	/**+
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	 * Returns the contained integer. Will panic if the contained+
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	 * datatype is not an ineger+
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	 */+
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	inline TInt Int() const;+
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    +
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	/**+
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     * Returns the contained string. Will panic if the contained+
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     * datatype is not an string+
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     */	+
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	inline TPtrC8 Str() const;+
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	+
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    /**+
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     * Returns the contained datetime value. Will panic if the contained+
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     * datatype is not a datettime value+
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     */ +
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	inline TDateTime DateTime() const;+
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+
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private:	+
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	THttpVariantType	               iVariantType;+
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	TInt                               iVariantVal;+
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	TInt							   iMoreSpace;+
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	};+
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+
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+
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inline THttpHeaderValueVariant::THttpHeaderValueVariant()+
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: iVariantVal(0),+
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iVariantType(ENoType),+
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iMoreSpace(0)+
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	{+
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	}+
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+
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inline THttpHeaderValueVariant::THttpHeaderValueVariant(TInt aInt)+
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: iVariantVal(aInt),+
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iVariantType(EIntType),+
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iMoreSpace(0)+
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	{+
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	}+
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+
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inline THttpHeaderValueVariant::THttpHeaderValueVariant(const TDesC8& aStr)+
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: iVariantVal(reinterpret_cast<TInt>(const_cast<TUint8*>(aStr.Ptr()))),+
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iVariantType(EStrType),+
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iMoreSpace(aStr.Length())+
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	{+
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	}+
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+
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inline THttpHeaderValueVariant::THttpHeaderValueVariant(TDateTime aDateTime)+
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: iVariantType(EDateTimeType),+
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	iMoreSpace(0)+
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	{+
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	*reinterpret_cast<TTime*>(&iVariantVal) = aDateTime;+
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	}+
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	+
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inline void THttpHeaderValueVariant::SetInt(TInt aInt)+
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	{+
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	iVariantVal = aInt;+
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	iMoreSpace = 0;+
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	iVariantType = EIntType;+
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	}+
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		+
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inline void THttpHeaderValueVariant::SetStr(const TDesC8& aStr)+
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	{	+
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	iVariantVal = reinterpret_cast<TInt>(const_cast<TUint8*>(aStr.Ptr()));	+
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	iMoreSpace = aStr.Length();	+
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	iVariantType = EStrType;	+
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	}+
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	+
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inline void THttpHeaderValueVariant::SetDateTime(TDateTime aDateTime)+
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	{+
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	*reinterpret_cast<TTime*>(&iVariantVal) = aDateTime;+
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	iVariantType = EDateTimeType;+
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	iMoreSpace = 0;+
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	}+
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	+
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inline THttpHeaderValueVariant::THttpVariantType THttpHeaderValueVariant::Type() const+
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	{+
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	return iVariantType;+
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	}+
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+
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inline TInt THttpHeaderValueVariant::Int() const+
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	{+
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	__ASSERT_DEBUG(iVariantType == EIntType, User::Invariant());+
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	return iVariantVal;+
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	}+
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+
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inline TPtrC8 THttpHeaderValueVariant::Str() const+
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	{+
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	__ASSERT_DEBUG(iVariantType == EStrType, User::Invariant());+
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	+
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	TUint8* actualAddr = reinterpret_cast<TUint8*>(iVariantVal);+
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	TPtrC8 ptr;+
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	ptr.Set(actualAddr, iMoreSpace);	+
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	return ptr;+
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	}+
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	+
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inline TDateTime THttpHeaderValueVariant::DateTime () const+
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	{+
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	__ASSERT_DEBUG(iVariantType == EDateTimeType, User::Invariant());+
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	return reinterpret_cast<const TTime*>(&iVariantVal)->DateTime();	+
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	}+
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#endif+
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