1 /**

     2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 

    19 

    20 /**

    21  @file XmlParsing.h

    22 */

    23 

    24 #ifndef _XMLPARSING_H_

    25 #define _XMLPARSING_H_

    26 

    27 #include <xml/contenthandler.h>

    28 #include <xml/documentparameters.h>

    29 #include <xml/taginfo.h>

    30 #include <xml/attribute.h>

    31 

    32 #include <elements/sd_mintercept.h>

    33 

    34 

    35 

    36 static const TUint KXmlParsingBufferMaxLength = 128;

    37 typedef TBuf8<KXmlParsingBufferMaxLength> TXmlTempBuf8;

    38 _LIT8(KXmlMimeType, "text/xml");

    39 

    40 class TLookupTableEntry8

    41 	{

    42 public:

    43 	TPtrC8 iIdentifier;

    44 	TUint iValue;

    45 	};

    46 

    47 class CExpressionXmlHandler : public Xml::MContentHandler

    48 	{

    49 	// MContentHandler

    50 protected:

    51 	void OnStartDocumentL(const Xml::RDocumentParameters& /*aDocParam*/, TInt /*aErrorCode*/) {}

    52 	void OnEndDocumentL(TInt /*aErrorCode*/) {}

    53 	void OnStartElementL(const Xml::RTagInfo& /*aElement*/, const Xml::RAttributeArray& /*aAttributes*/, TInt /*aErrorCode*/) {}

    54 	void OnEndElementL(const Xml::RTagInfo& /*aElement*/, TInt /*aErrorCode*/) {}

    55 	void OnContentL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/){}

    56 	void OnStartPrefixMappingL(const RString& /*aPrefix*/, const RString& /*aUri*/, TInt /*aErrorCode*/){}

    57 	void OnEndPrefixMappingL(const RString& /*aPrefix*/, TInt /*aErrorCode*/){}

    58 	void OnIgnorableWhiteSpaceL(const TDesC8& /*aBytes*/, TInt /*aErrorCode*/){}

    59 	void OnSkippedEntityL(const RString& /*aName*/, TInt /*aErrorCode*/) {}

    60 	void OnProcessingInstructionL(const TDesC8& /*aTarget*/, const TDesC8& /*aData*/, TInt /*aErrorCode*/){}

    61 	void OnExtensionL(const RString& /*aData*/, TInt /*aToken*/, TInt /*aErrorCode*/){}

    62 	void OnError(TInt /*aErrorCode*/){}

    63 	TAny* GetExtendedInterface(const TInt32 /*aUid*/){return NULL;}

    64 	void FetchAttributeValueByNameL(

    65 		const Xml::RAttributeArray& aAttributes,

    66 		const TDesC8& aAttributeTag,

    67 		TDes8& aAttributeValue);

    68 

    69 	enum TLookupTableType {EUidTable, EMessageIdTable, ETierIdTable, EAccessPointIdTable, EErrorCodeTable, EActionTypeTable, ERealmIdTable};

    70 

    71 	void ParseIdentifierValueL(const TDesC8& aBuffer, TDes8& aIdentifier);

    72 	void ParseHexValueL(const TDesC8& aBuffer, TUint& aHexValue);

    73 	void LookupValueByNameL(TLookupTableType aLookupType, const TDesC8& aName, TUint& aValue);

    74 	void FetchValueOrNamedValueL(TLookupTableType aType, const TDesC8& aBuffer, TUint& aValue);

    75 	};

    76 

    77 class CActionXmlHandler : public CExpressionXmlHandler

    78 	{

    79 	public:

    80 		CActionXmlHandler();

    81 		CActionXmlHandler(Den::TAction& aParsedAction) : iAction(aParsedAction) {}

    82 		virtual ~CActionXmlHandler() {}

    83 

    84 	private:

    85 		// From MContentHandler

    86 		void OnStartElementL(const Xml::RTagInfo& aElement, const Xml::RAttributeArray& aAttributes, TInt aErrorCode);

    87 

    88 		void ParseActionTypeAttributeL(const Xml::RAttributeArray& aAttributes, Den::TAction::TActionType& aActionType);

    89 		void ParseActionErrorCodeAttributeL(const Xml::RAttributeArray& aAttributes, TInt& aError);

    90 

    91 		Den::TAction& iAction;

    92 	};

    93 

    94 class CEventExpressionXmlHandler : public CExpressionXmlHandler

    95 	{

    96 

    97 	public:

    98 		CEventExpressionXmlHandler();

    99 		CEventExpressionXmlHandler(Den::TEventExpression& aEventExpression) :

   100 			iEventExpression(aEventExpression),

   101 			iParseState(EEventElement) {}

   102 		virtual ~CEventExpressionXmlHandler() {}

   103 

   104 	private:

   105 		// From MContentHandler

   106 		void OnStartElementL(const Xml::RTagInfo& aElement, const Xml::RAttributeArray& aAttributes, TInt aErrorCode);

   107 		void OnEndElementL(const Xml::RTagInfo& /*aElement*/, TInt /*aErrorCode*/);

   108 

   109 		void ParseProviderInfoAttributeL(const Xml::RAttributeArray& aAttributes, TUid& aTierId, TUint& aAPId);

   110 		void ParseUidAttributeL(const Xml::RAttributeArray& aAttributes, TUid& aUid);

   111 		void ParseNodeTagAttributeL(const Xml::RAttributeArray& aAttributes, TDes8& aTagToApply);

   112 		void ParseNodeTagToApplyAttributeL(const Xml::RAttributeArray& aAttributes, TDes8& aTagToApply);

   113 

   114 		void ParseNodeExpressionElementL(

   115 			const Xml::RTagInfo& aElementName,

   116 			const Xml::RAttributeArray& aAttributes,

   117 			Den::TNodeExpression& aNodeExpression);

   118 

   119 		void ParseMessageElementL(

   120 			const Xml::RTagInfo& aElementName,

   121 			const Xml::RAttributeArray& aAttributes,

   122 			Den::TMsgExpression& aMessage);

   123 

   124 		void ParseNamedNumericAttributeL(

   125 			const TDesC8& aAttribName,

   126 			const Xml::RAttributeArray& aAttributes,

   127 			TLookupTableType aTableId,

   128 			TUint& aParsedValue);

   129 

   130 		Den::TNodeExpression iSender;

   131 		Den::TMsgExpression iMessage;

   132 		Den::TNodeExpression iReceiver;

   133 		Den::TEventExpression& iEventExpression;

   134 

   135 		enum TParseState {EEventElement, ESenderNodeElement, EMsgElement, EReceiverNodeElement, EDone};

   136 		TParseState iParseState;

   137 	};

   138 

   139 #endif // _XMLPARSING_H_

   140