author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 25 May 2010 12:42:41 +0300 | |
branch | RCL_3 |
changeset 17 | 26673e532f65 |
parent 0 | d11fb78c4374 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004-2007 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: Handler for XML file modify. Defines the class to store and modify XML data. |
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* |
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*/ |
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#ifndef CXMLHANDLER_H |
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#define CXMLHANDLER_H |
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#include <e32base.h> |
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#include <f32file.h> |
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#include <badesca.h> |
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/** general tags */ |
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_LIT8(KBtLessThan, "<"); |
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_LIT8(KBtGreaterThan, ">"); |
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_LIT8(KBtLessThanSlash,"</"); |
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_LIT8(KBtSlash, "/"); |
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_LIT8(KEof, "EOF"); |
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/** Maximum size of template file */ |
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const TInt KBtMaxFileSize = 2048; |
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/** |
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* @class CXmlHandler |
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* @brief Class to store and modify XML data. |
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* @n |
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* @b Usage: |
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* <OL> |
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* @li Create an instance of class |
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* @li Initialize class with a data buffer by InitFromBufferL or with a file name by InitFromFileL |
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* @li Get/replace/remove parts of initialized data |
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* </OL> |
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*/ |
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NONSHARABLE_CLASS( CXmlHandler ): public CBase |
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{ |
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public: |
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/** NewL |
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* @brief Creates a new instance of XML handler. |
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* @return Pointer to the instance. |
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*/ |
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static CXmlHandler* NewL(); |
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/** NewLC |
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* @brief Creates a new instance of XML handler and leaves it in the cleanup stack. |
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* @return Pointer to the instance. |
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*/ |
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static CXmlHandler* NewLC(); |
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static TPtrC8 ParseValue(const TDesC8 &aData, const TDesC8 &aStart, const TDesC8 &aEnd, TInt& aOffset); |
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static void ParseValueListL(const TDesC8 &aData, const TDesC8 &aStart, const TDesC8 &aEnd, CDesC8ArrayFlat& aList); |
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/** ~CXmlHandler |
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* @brief Destructor. |
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*/ |
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~CXmlHandler(); |
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/** Reset |
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* @brief Resets the member variables. |
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*/ |
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void Reset(); |
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/** InitFromFileL |
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* @brief Reads the named template file for handling it. |
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* @param aFile Name of the file to read for handle |
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* @param aId Identifier for the data stored in class |
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*/ |
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void InitFromFileL(const TDesC& aFile, const TInt aId = KErrNotFound); |
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/** InitFromBufferL |
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* @brief Initialises the data to handle with given buffer. |
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* @param aBuffer The buffer to handle |
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* @param aId Identifier for the data stored in class |
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*/ |
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void InitFromBufferL(const TDesC8& aBuffer, const TInt aId = KErrNotFound); |
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/** ComposeDataL |
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* @brief Replaces the template with string value in stored data |
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* @param aStr String to convert for |
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* @param aTag Template to replace |
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*/ |
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void ComposeDataL(const TDesC8& aData, const TDesC8& aTag); |
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/** @overload void ComposeDataL(const TDesC8& aData, const TDesC8& aTag) */ |
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void ComposeDataL(const TInt aValue, const TDesC8& aTag); |
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/** InsertDataL |
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* @brief Inserts data in the buffer |
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* @param aStr String to convert for |
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* @param aTag Template to replace |
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*/ |
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void InsertDataL(const TDesC8& aData, const TInt aOffset); |
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/** GetDataL |
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* @brief Returns the data between given start and end descriptors. |
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* NOTE: The start and end descriptors are @e not returned. |
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* @param aStart Start tag for data to find. |
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* @param aEnd End tag for data to find. |
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* @param aOffset Returns offset for the data start. KErrNotFound indicates the data not found. |
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*/ |
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TPtrC8 GetDataL(const TDesC8& aStart, const TDesC8& aEnd, TInt& aOffset); |
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/** FinalizeBufferL |
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* @brief Trims the member buffer tail. Replacing the template strings from |
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* the buffer makes the data length in the buffer vary and generates |
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* rubbish in the end of buffer. |
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* @param aTag End tag to delete all after it. |
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* @return Pointer to the stored data. |
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*/ |
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TPtrC8 FinalizeBufferL(const TDesC8& aTag); |
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/** DeleteBufferData |
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* @brief Deletes the data from the buffer. |
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* @param aOffset Data offset to start delete |
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* @param aLength Length of the data to delete |
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*/ |
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void DeleteBufferData(TInt aOffset, TInt aLength); |
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|
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/** BufferId |
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* @brief Returns the identifier of the stored data. |
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* @return Identifier of the stored data |
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*/ |
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TInt BufferId(); |
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|
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/** Buffer |
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* @brief Returns the pointer to the stored data. |
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* @return Pointer to the stored data |
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*/ |
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TPtrC8 Buffer(); |
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void GetDataListL(const TDesC8 &aStart, const TDesC8 &aEnd, CDesC8ArrayFlat& aList); |
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protected: |
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/** ConstructL |
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* @brief Symbian second phase constructor. |
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*/ |
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void ConstructL(); |
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private: |
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/** CXmlHandler |
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* @brief C++ constructor |
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*/ |
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CXmlHandler(); |
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/** ReadFileL |
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* @brief Reads the file in iDataBuf |
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*/ |
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void ReadFileL(const TDesC& aFile); |
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private: |
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/** @var HBufC8* iDataBuf |
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* Buffer to store the data initialized */ |
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HBufC8* iDataBuf; |
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/** @var TInt iBufferId |
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* Identifier for the stored data. Initialized as KErrNotFound. */ |
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TInt iBufferId; |
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/** @var RFs iFs |
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* File server session */ |
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RFs iFs; |
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}; |
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#endif // CXMLHANDLER_H |
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// End of File |