messagingfw/wappushfw/SISLContentHandlers/inc/CMsgParser.h
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     1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 	
       
    16 #ifndef __CMSGPARSER_H
       
    17 #define __CMSGPARSER_H
       
    18 
       
    19 #include <e32base.h>
       
    20 #include <xml/contenthandler.h>
       
    21 #include <xml/parser.h>
       
    22 #include <push/pushmessage.h>
       
    23 
       
    24 class MWAPElementHandler
       
    25 	{
       
    26 	public:
       
    27 	virtual void HandleElementL ( const RString& aTag, const RString& aAttributeName, const RString& aAttributeValue ) = 0;
       
    28 	virtual void HandleContentL ( const TDesC8& aBytes ) = 0;
       
    29 	};
       
    30 
       
    31  /**
       
    32  TODO
       
    33  */
       
    34 //##ModelId=3B659EE90381
       
    35 class CMessageParser : public CBase, public Xml::MContentHandler
       
    36 /**
       
    37 @internalTechnology
       
    38 @released
       
    39 */
       
    40 	{
       
    41 public:
       
    42 	//##ModelId=3B659EEA0032
       
    43 	static CMessageParser* NewL ( CPushMessage& aPushMsg, 
       
    44 								MWAPElementHandler& aElementHandler,
       
    45 								const TStringTable* aTagsTable,
       
    46 								const TStringTable* aAttributeTable,
       
    47 								const TStringTable* aAttributeValueTable );	
       
    48 	/** parses and validates and returns error code */
       
    49 	//##ModelId=3B659EEA0028
       
    50 	TInt ParseMessageL ();	
       
    51 
       
    52 	//##ModelId=3B659EEA0027
       
    53 	~CMessageParser ();
       
    54 	
       
    55 	RStringPool& StringPool ();
       
    56 	
       
    57 	// Methods from Xml::MContentHandler
       
    58 	void OnStartDocumentL ( const Xml::RDocumentParameters &aDocParam, TInt aErrorCode );
       
    59 	void OnEndDocumentL ( TInt aErrorCode );	
       
    60 	void OnStartElementL ( const Xml::RTagInfo &aElement, const Xml::RAttributeArray &aAttributes, TInt aErrorCode );
       
    61 	void OnEndElementL ( const Xml::RTagInfo &aElement, TInt aErrorCode );
       
    62 	void OnContentL ( const TDesC8 &aBytes, TInt aErrorCode );
       
    63 	void OnStartPrefixMappingL ( const RString &aPrefix, const RString &aUri, TInt aErrorCode );
       
    64 	void OnEndPrefixMappingL ( const RString &aPrefix, TInt aErrorCode );
       
    65 	void OnIgnorableWhiteSpaceL ( const TDesC8 &aBytes, TInt aErrorCode );
       
    66 	void OnSkippedEntityL ( const RString &aName, TInt aErrorCode );
       
    67 	void OnProcessingInstructionL ( const TDesC8 &aTarget, const TDesC8 &aData, TInt aErrorCode );
       
    68 	void OnError ( TInt aErrorCode );
       
    69 	TAny* GetExtendedInterface ( const TInt32 aUid );
       
    70 	
       
    71 	TInt LastError ();	
       
    72 private:
       
    73 	//##ModelId=3B659EE903D3
       
    74 	CMessageParser( CPushMessage& aPushMsg, 
       
    75 					MWAPElementHandler& aElementHandler,
       
    76 					const TStringTable* aTagsTable,
       
    77 					const TStringTable* aAttributeTable,
       
    78 					const TStringTable* aAttributeValueTable );
       
    79 	//##ModelId=3B659EE903D2
       
    80 	void ConstructL ();
       
    81 	//##ModelId=3B659EE903D1	
       
    82 	void LoadPluginL ();
       
    83 	
       
    84 	void CheckTagInTableL ( const RString& aTag );
       
    85 	void CheckAttributeValuePairL ( const RString& aAttribute, const RString& aAttributeValue );
       
    86  	
       
    87 	TInt MapToWapXMLError ( TInt aXmlErrorCode );
       
    88 	
       
    89 private:
       
    90 	//##ModelId=3B659EE9038F
       
    91 
       
    92 	CPushMessage&				iPushMessage;	// reference
       
    93 	MWAPElementHandler&			iElementHandler;
       
    94 
       
    95 	Xml::CParser*				iParser;
       
    96 	
       
    97 	// Pointer to the static string pool table for tags, attribute and attribute value
       
    98 	// We don't own this
       
    99 	const TStringTable*			iTagsTable;
       
   100 	const TStringTable*			iAttributeTable;
       
   101 	const TStringTable*			iAttributeValueTable;
       
   102 	
       
   103 	// Tag position in the XML document and the mapping in the tags string table.
       
   104 	TInt 						iTagPosition; 
       
   105 	
       
   106 	TInt iLastError;
       
   107 	};
       
   108 
       
   109 
       
   110 #endif // __CMSGPARSER_H