installationservices/swi/source/sisxrecognizer/recsisx.cpp
changeset 0 ba25891c3a9e
child 1 c42dffbd5b4f
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     1 /*
       
     2 * Copyright (c) 2004-2009 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 the License "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 #include "recsisx.h"
       
    20 #include "dessisdataprovider.h"
       
    21 #include "swicommon.h"
       
    22 #include <apadef.h>
       
    23 #include "patchdata.h"
       
    24 #include <ecom/ecom.h>
       
    25 #include <ecom/implementationproxy.h>
       
    26 #include <u32hal.h> 
       
    27 
       
    28 using namespace Swi;
       
    29 
       
    30 CApaSisxRecognizer::CApaSisxRecognizer() : CApaDataRecognizerType (KApaSisx, 
       
    31 																   CApaDataRecognizerType::ENormal)
       
    32 	{
       
    33 	iCountDataTypes = KSupportedDataTypesTotal;
       
    34 	}
       
    35 
       
    36 TUint CApaSisxRecognizer::PreferredBufSize ()
       
    37 	{
       
    38 	return sizeof(TCheckedUid);
       
    39 	}
       
    40 
       
    41 TDataType CApaSisxRecognizer::SupportedDataTypeL (TInt /*aIndex*/) const
       
    42 	{
       
    43 	return TDataType(KDataTypeSisx);
       
    44 	}
       
    45 
       
    46 void CApaSisxRecognizer::DoRecognizeL (const TDesC& aName, const TDesC8& aBuffer)
       
    47 	{
       
    48     iDataType = TDataType(KDataTypeSisx);
       
    49     iConfidence = ENotRecognized;
       
    50 	if (aBuffer.Size() < sizeof(TCheckedUid))
       
    51 		{
       
    52 		return;
       
    53 		}	
       
    54 	TCheckedUid checkedUID(aBuffer.Mid(0, sizeof(TCheckedUid)) );
       
    55 	if (checkedUID.UidType()[0] != KUidSisxFile) 
       
    56 		return;
       
    57 
       
    58 	const TInt positionOfExtDelimiter=aName.LocateReverse(TChar(KExtDelimiter));
       
    59 	TUint8 patchableConst = KSisxRecognizerConst;
       
    60 	
       
    61 #ifdef __WINS__
       
    62 // For the emulator allow the constant to be patched via epoc.ini
       
    63 UserSvr::HalFunction(EHalGroupEmulator, EEmulatorHalIntProperty,
       
    64 	(TAny*)"KSisxRecognizerConst", &patchableConst); // read emulator property (if present)
       
    65 #endif
       
    66 
       
    67 	if (patchableConst)
       
    68 		{
       
    69 		if (positionOfExtDelimiter >= 0)
       
    70 	    	{
       
    71 	    	if ((aName.Mid(positionOfExtDelimiter).CompareF(KFileExtensionSisx) == 0) ||
       
    72 	    		(aName.Mid(positionOfExtDelimiter).CompareF(KFileExtensionLegacySis) == 0))
       
    73 	        	{
       
    74 	        	iConfidence = ECertain;
       
    75 	        	}
       
    76 			// All other extentions will be set to ENotRecognized
       
    77 	    	}
       
    78 		}
       
    79     else
       
    80 	    {
       
    81    		// When KSisxRecognizerConst is zero, use the following method to recognise file extentions
       
    82 	    if ((positionOfExtDelimiter >= 0) &&
       
    83         	(aName.Mid(positionOfExtDelimiter).CompareF(KFileExtensionSisx) == 0))
       
    84 	        {
       
    85 	        iConfidence = ECertain;
       
    86 	        }
       
    87 	    else
       
    88 	    	{
       
    89 	    	iConfidence = EPossible;
       
    90 	    	}
       
    91 	    }
       
    92 	}
       
    93 
       
    94 CApaDataRecognizerType* CApaSisxRecognizer::CreateRecognizerL()
       
    95 	{
       
    96 	return new (ELeave) CApaSisxRecognizer();
       
    97 	}
       
    98 
       
    99 const TImplementationProxy ImplementationTable[] = 
       
   100 	{
       
   101 		IMPLEMENTATION_PROXY_ENTRY(0x10204FC7, CApaSisxRecognizer::CreateRecognizerL)
       
   102 	};
       
   103 
       
   104 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
       
   105 	{
       
   106 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
       
   107 	return ImplementationTable;
       
   108 	}	
       
   109