xml/xmldomandxpath/src/xmlengineserializer/xmlengdeserializerdom.cpp
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     1 // Copyright (c) 2006-2009 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 // XML DOM Deserializer implementation
       
    15 //
       
    16 
       
    17 #include <xml/dom/xmlengserializeerrors.h>
       
    18 #include <xml/dom/xmlengdeserializer.h>
       
    19 #include <xml/dom/xmlengdeserializerdom.h>
       
    20 #include "xmlengdomcontenthandler.h"
       
    21 
       
    22 #include <xml/parserfeature.h>
       
    23 #include <xml/dom/xmlengdom.h>
       
    24 #include <xml/dom/xmlengdocument.h>
       
    25 
       
    26 using namespace Xml;
       
    27 
       
    28 // --------------------------------------------------------------------------------------
       
    29 // Creates an instance of CXmlEngDeserializerDOM
       
    30 // --------------------------------------------------------------------------------------
       
    31 //
       
    32 EXPORT_C CXmlEngDeserializerDOM* CXmlEngDeserializerDOM::NewL() 
       
    33     {
       
    34 	CXmlEngDeserializerDOM* self = new (ELeave) CXmlEngDeserializerDOM; 
       
    35 	return self;
       
    36 	}
       
    37 
       
    38 // --------------------------------------------------------------------------------------
       
    39 // Set input type as file
       
    40 // --------------------------------------------------------------------------------------
       
    41 //
       
    42 EXPORT_C void CXmlEngDeserializerDOM::SetInputFileL(const TDesC& aFileName, TXmlEngDeserializerType aType)
       
    43 	{
       
    44 	if(iInputFileName)
       
    45 	    {
       
    46 	    delete iInputFileName;
       
    47 	    iInputFileName=NULL;
       
    48 	    }
       
    49 	iBuffer.Set(KNullDesC8());
       
    50 	iInputFileName = aFileName.AllocL();
       
    51 	iType = aType;
       
    52 	}
       
    53 
       
    54 // --------------------------------------------------------------------------------------
       
    55 // Set input type as buffer
       
    56 // --------------------------------------------------------------------------------------
       
    57 //
       
    58 EXPORT_C void CXmlEngDeserializerDOM::SetInputBuffer(const TDesC8& aBuffer, TXmlEngDeserializerType aType)
       
    59 	{
       
    60 	if(iInputFileName)
       
    61 	    {
       
    62 	    delete iInputFileName;
       
    63 	    iInputFileName=NULL;
       
    64 	    }
       
    65 	iBuffer.Set(aBuffer);
       
    66 	iType = aType;
       
    67 	}	
       
    68 	
       
    69 // --------------------------------------------------------------------------------------
       
    70 // Set external data array
       
    71 // --------------------------------------------------------------------------------------
       
    72 //
       
    73 EXPORT_C void CXmlEngDeserializerDOM::UseExternalDataL(RArray<TXmlEngDataContainer>& aList)
       
    74 	{
       
    75 	iDataList = &aList;
       
    76 	}
       
    77 
       
    78 
       
    79 // --------------------------------------------------------------------------------------
       
    80 // Fetches external data registered in this deserializer
       
    81 // --------------------------------------------------------------------------------------
       
    82 //
       
    83 EXPORT_C RArray<TXmlEngDataContainer>* CXmlEngDeserializerDOM::ExternalData()
       
    84 	{
       
    85 	return iDataList;
       
    86 	}
       
    87   
       
    88 // --------------------------------------------------------------------------------------
       
    89 // Serializes TXmlEngNode to file
       
    90 // --------------------------------------------------------------------------------------
       
    91 //
       
    92 EXPORT_C RXmlEngDocument CXmlEngDeserializerDOM::DeserializeL()
       
    93     {
       
    94     RXmlEngDocument doc;
       
    95 	if(iInputFileName)
       
    96 	    {
       
    97 	    RFs fs; 
       
    98 	    CleanupClosePushL(fs);
       
    99 	    User::LeaveIfError(fs.Connect());    				
       
   100 	    doc =DeserializeL(fs, *iInputFileName, iType);			
       
   101 	    CleanupStack::PopAndDestroy(&fs);
       
   102 	    return doc;
       
   103 	    }
       
   104 	else if(iBuffer.Length())
       
   105 	    {
       
   106 	    return DeserializeL(iBuffer, iType);			
       
   107 	    }
       
   108 	else
       
   109 	    {
       
   110 	    User::Leave(KXmlEngErrNoParameters);    
       
   111 	    }
       
   112 	return doc;
       
   113     }
       
   114 
       
   115 // --------------------------------------------------------------------------------------
       
   116 // Deserialize document
       
   117 // --------------------------------------------------------------------------------------
       
   118 //
       
   119 EXPORT_C RXmlEngDocument CXmlEngDeserializerDOM::DeserializeL(const TDesC& aFileName,
       
   120                                                                TXmlEngDeserializerType aType) 
       
   121     {
       
   122 	RFs fs; 
       
   123 	CleanupClosePushL(fs);
       
   124 	User::LeaveIfError(fs.Connect());
       
   125 	RXmlEngDocument doc = DeserializeL(fs,aFileName,aType);
       
   126 	CleanupStack::PopAndDestroy(&fs);			
       
   127 	return doc;
       
   128 	}
       
   129 
       
   130 // --------------------------------------------------------------------------------------
       
   131 // Deserialize document
       
   132 // --------------------------------------------------------------------------------------
       
   133 //
       
   134 EXPORT_C RXmlEngDocument CXmlEngDeserializerDOM::DeserializeL(RFs& aRFs,
       
   135                                                    const TDesC& aFileName,
       
   136                                                    TXmlEngDeserializerType aType) 
       
   137     {
       
   138     if(!iImpl)
       
   139         {
       
   140         User::Leave(KXmlEngErrWrongUseOfAPI);
       
   141         }
       
   142     
       
   143     RXmlEngDocument doc;
       
   144 	doc.OpenL(*iImpl);
       
   145 	CleanupClosePushL(doc);
       
   146 	
       
   147     CXmlEngDOMContentHandler* handler = CXmlEngDOMContentHandler::NewL(doc);
       
   148     CleanupStack::PushL(handler);
       
   149     
       
   150     CXmlEngDeserializer* des = CXmlEngDeserializer::NewL(*handler,aType);
       
   151     CleanupStack::PushL(des);
       
   152 	
       
   153 	des->UseExternalDataL(*iDataList);
       
   154 	des->EnableFeature(EReportNamespaceMapping);
       
   155 	des->DeserializeL(aRFs,aFileName);	
       
   156 		
       
   157 	CleanupStack::PopAndDestroy(des);
       
   158 	CleanupStack::PopAndDestroy(handler);	
       
   159 	CleanupStack::Pop(&doc);
       
   160     
       
   161     return doc;		
       
   162 	}
       
   163 
       
   164 // --------------------------------------------------------------------------------------
       
   165 // Deserialize document
       
   166 // --------------------------------------------------------------------------------------
       
   167 //
       
   168 EXPORT_C RXmlEngDocument CXmlEngDeserializerDOM::DeserializeL(const TDesC8& aBuffer,
       
   169                                                                TXmlEngDeserializerType aType) 
       
   170     {
       
   171     if(!iImpl)
       
   172         {
       
   173         User::Leave(KXmlEngErrWrongUseOfAPI);
       
   174         }
       
   175     
       
   176     RXmlEngDocument doc;
       
   177 	doc.OpenL(*iImpl);
       
   178 	CleanupClosePushL(doc);
       
   179 	
       
   180     CXmlEngDOMContentHandler* handler = CXmlEngDOMContentHandler::NewL(doc);
       
   181     CleanupStack::PushL(handler);
       
   182     
       
   183     CXmlEngDeserializer* des = CXmlEngDeserializer::NewL(*handler,aType);
       
   184     CleanupStack::PushL(des);
       
   185 	
       
   186 	des->UseExternalDataL(*iDataList);
       
   187 	des->EnableFeature(EReportNamespaceMapping);
       
   188 	des->DeserializeL(aBuffer);	
       
   189 		
       
   190 	CleanupStack::PopAndDestroy(des);
       
   191 	CleanupStack::PopAndDestroy(handler);	
       
   192 	CleanupStack::Pop(&doc);
       
   193     
       
   194     return doc;
       
   195     }  
       
   196 
       
   197 // --------------------------------------------------------------------------------------
       
   198 // Sets DOM implementation that should be used during document creating.
       
   199 // --------------------------------------------------------------------------------------
       
   200 //
       
   201 EXPORT_C void CXmlEngDeserializerDOM::UseDOMImplementationL(RXmlEngDOMImplementation& aImpl)
       
   202     {
       
   203     iImpl = &aImpl;
       
   204     }
       
   205 
       
   206       
       
   207 // --------------------------------------------------------------------------------------
       
   208 // Default Constructor
       
   209 // --------------------------------------------------------------------------------------
       
   210 //
       
   211 CXmlEngDeserializerDOM::CXmlEngDeserializerDOM( ) 
       
   212     {    
       
   213     }
       
   214     
       
   215 // --------------------------------------------------------------------------------------
       
   216 // Destructor
       
   217 // --------------------------------------------------------------------------------------
       
   218 //
       
   219 CXmlEngDeserializerDOM::~CXmlEngDeserializerDOM()
       
   220     {
       
   221    	delete iInputFileName;  
       
   222     }
       
   223