/*+
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* Copyright (c) 2004 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:   Declaration of the class CReaderBase.+
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*+
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*/+
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#ifndef READER_BASE_H+
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#define READER_BASE_H+
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+
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// INCLUDE FILES+
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#include <e32base.h>+
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#include <f32file.h>+
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#include <flogger.h>+
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+
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#include "cdccommon.h"+
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#include "cdcerrors.h"+
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#include "cdctagcontainer.h"+
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+
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// CLASS DECLARATION+
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+
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/**+
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* CReaderBase.+
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* Base class for XML and CSV reader.+
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*/+
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class CReaderBase : public CBase+
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    {+
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    +
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    public:+
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        /**+
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        * Destructor.+
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        */+
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        virtual ~CReaderBase();+
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        +
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    protected:+
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+
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        /**+
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        * Default constructor.+
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        * @param TDbCreatorInputFile input file type (csv or xml)+
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        * @param TDbCreatorFeatures feature type - relevant in case +
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        * of csv input as feature is not detected by the reader.+
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        */+
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        CReaderBase( TDbCreatorInputFile aFileType, +
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                     TDbCreatorFeatures aFeature );+
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        +
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        /**+
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        * Second phase constructor. Leaves on failure.+
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        * @param aInFileName Name of the input file.+
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        */+
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        void ConstructL( const TDesC& aInFileName );+
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        +
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    public:+
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    +
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        /**+
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        * Locates the next feature in input file.+
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        */+
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        virtual void LocateFeatureL() = 0;+
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           +
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        /**+
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        * Gives back the next line from the given buffer.+
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        * @return EFalse if the end of buffer is accessed, ETrue otherwise.+
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        */+
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        virtual TBool LocateAPL() = 0;+
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        +
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        /**+
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        * Parses a line of the input file.+
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        */+
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        virtual void ParseAPL() = 0;+
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        +
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        /**+
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        * Resets the actual file position to the beginning of the file.+
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        * @return One of the system-wide error codes if reset failed.+
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        */+
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        virtual TInt Reset() = 0;+
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           +
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        /**+
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        * Writes log to the log file.+
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        */+
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        virtual void ToDoLog() = 0;+
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        +
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        /**+
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        * Returns reference to the TagContainer+
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        * @return CTagContainer+
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        */+
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        CTagContainer& TagContainer();+
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        +
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        /**+
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        * Returns reference to the input file+
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        * @return RFile+
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        */   +
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        RFile& InputFile();+
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        +
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        /**+
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        * Returns reference to the logger+
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        * @return RFileLogger+
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        */   +
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        RFileLogger& FileLogger();+
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        +
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        /**+
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        * Checks if filed ID is read from the input file (otherwise it is +
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        * calculated by reader according to the index of the tag)+
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        * @return TRUE if reader reads the field id+
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        */+
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        TBool FieldIDPresent();+
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        +
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        /**+
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        * Returns the feature currently being parsed+
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        * @return TDbCreatorFeatures+
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        *    - EFeatureNone    - No feature found+
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        *    - EFeatureAP      - Internet access point+
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        *    - EFeatureWLAN    - WLAN access point+
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        *    - EFeatureVPN     - VPN access point+
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        */+
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        TDbCreatorFeatures CurrentFeature();+
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+
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    protected:+
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        // @var marks the found feature that is being processed+
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        TDbCreatorFeatures    iCurrentFeature;+
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                                            +
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    private:+
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    +
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        // @var contains the values read from input file+
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        CTagContainer*        iTagContainer;      +
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        // @var for file handling.                                +
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        RFs                   iFs;+
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        // @var Input file.+
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        RFile                 iInputFile; +
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        // @var Log file.+
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        RFileLogger           iLogFile; +
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        // @var Input file type+
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        TDbCreatorInputFile   iFileType;  +
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    +
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    };+
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#endif // READER_BASE_H+
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+
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// End of File.+
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