/*

* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

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

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  This class provides implementation body for the API specified

*                by CMetaDataUtility.

*

*/

// INCLUDE FILES

#include	<MetaDataFieldContainer.h>

#include	<Oma2Agent.h>

#include	"MetaDataUtilityBody.h"

#include	"MetaDataParserFactory.h"

#include	"MetaDataParser.h"

#include	"MetaDataSourceFile.h"

#include	"MetaDataSourceDescriptor.h"

#include    "MetaDataBufferAgg.h"

#ifdef _DEBUG

#include	<e32svr.h>

#endif

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::CMetaDataUtilityBody

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CMetaDataUtilityBody::CMetaDataUtilityBody()

	:	iContainer(NULL),

		iParser(NULL),

		iSource(NULL),

		iID3Version(ENonID3),

		iChunkMode(EFalse),

        iBufferAgg(NULL)

    {

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::ConstructL

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void CMetaDataUtilityBody::ConstructL()

    {

	iContainer = CMetaDataFieldContainer::NewL();

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::ConstructL - Done!"));

#endif

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::NewL

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CMetaDataUtilityBody* CMetaDataUtilityBody::NewL()

    {

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::NewL"));

#endif

	CMetaDataUtilityBody* self = new( ELeave ) CMetaDataUtilityBody;

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CMetaDataUtilityBody::~CMetaDataUtilityBody()

	{

	delete iSource;	    

	delete iParser;

	delete iContainer;

	CloseChunkData();

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::OpenFileL

// -----------------------------------------------------------------------------

//

void CMetaDataUtilityBody::OpenFileL(

	const TDesC& aFileName,

	const RArray<TMetaDataFieldId>& aWantedFields )

	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::OpenFileL (TDesc)"));

#endif

	if ( iParser )

		{

		User::Leave(KErrAlreadyExists);

		}

	iParser = FindParserFileL(aFileName);

	if ( iParser )

		{

		iParser->CommonParseL((CMetaDataSourceFile*)iSource, aWantedFields, *iContainer);

		}

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::OpenFileL

// -----------------------------------------------------------------------------

//

void CMetaDataUtilityBody::OpenFileL(

	RFile& aFile,

	const RArray<TMetaDataFieldId>& aWantedFields )

	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::OpenFileL(RFile)"));

#endif

	if ( iParser )

		{

		User::Leave(KErrAlreadyExists);

		}

	iParser = FindParserFileL(aFile);

	if ( iParser )

		{

		iParser->CommonParseL((CMetaDataSourceFile*)iSource, aWantedFields, *iContainer);

		}

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::OpenDesL

// -----------------------------------------------------------------------------

//

void CMetaDataUtilityBody::OpenDesL(

	const TDesC8& aDes,

	const RArray<TMetaDataFieldId>& aWantedFields )

	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::OpenDesL"));

#endif

	if ( iParser )

		{

		User::Leave(KErrAlreadyExists);

		}

	iParser = FindParserDesL(aDes);

	if ( iParser )

		{

		iParser->CommonParseDesL(aWantedFields, *iContainer);

		}

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::MetaDataCount

// -----------------------------------------------------------------------------

//

TInt CMetaDataUtilityBody::MetaDataCount() const

   	{

	return iContainer->Count();

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::MetaDataFieldsL

// -----------------------------------------------------------------------------

//

const CMetaDataFieldContainer& CMetaDataUtilityBody::MetaDataFieldsL()

   	{

	return *iContainer;

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::DoParseChunkDataL

//

// This is a callback from the "Buffer Aggregator" to start parsing after all

// meta-data has been aggregated.

// -----------------------------------------------------------------------------

//

void CMetaDataUtilityBody::DoParseChunkDataL(TDesC8& aChunk, TDesC8& aMimeType)

    {

    RArray<TMetaDataFieldId> wantedFields;

    CleanupClosePushL( wantedFields );

    OpenDesL( aChunk, wantedFields, aMimeType );

    CleanupStack::PopAndDestroy();

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::InitChunkData

// -----------------------------------------------------------------------------

//	

TInt CMetaDataUtilityBody::InitChunkData(

        TDesC8& aMimeType, 

        MMDUChunkDataObserver& aObserver )

    {

    if ( &aObserver == NULL ) 

        {

        return KErrArgument;

        }

    if ( aMimeType.Compare(KMp3MimeType) )

        {

        if ( aMimeType.Compare(KMpegMimeType) )      

            {

            return KErrArgument;

            }   

        }

    TRAPD( err, iBufferAgg = CMetaDataBufferAgg::NewL( this, aMimeType, aObserver ) );

    if ( err )

        {

        return err;

        }

    iChunkMode = ETrue;    

    return KErrNone;  

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::ProcessChunkData

// -----------------------------------------------------------------------------

//  

TInt CMetaDataUtilityBody::ProcessChunkData( 

        TDesC8& aChunk,

        TBool aFinalChunk )

    {

    TInt error = iBufferAgg->RequestProcessChunkData( aChunk, aFinalChunk );    

    iBufferAgg->ReadyToGo();

    return error;

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::ParseChunkData

// -----------------------------------------------------------------------------

//  

TInt CMetaDataUtilityBody::ParseChunkData()

    {

    TInt error = iBufferAgg->RequestParseChunkData();    

    iBufferAgg->ReadyToGo();

    return error;

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::IsChunkDataMode

// -----------------------------------------------------------------------------

//	

TBool CMetaDataUtilityBody::IsChunkDataMode()

    {

    return iChunkMode;

    }

// -----------------------------------------------------------------------------

// CMetaDataUtility::CloseChunkData

// -----------------------------------------------------------------------------

//	

void CMetaDataUtilityBody::CloseChunkData()

    {

    iChunkMode = EFalse;

    if ( iBufferAgg )

        {

        delete iBufferAgg;

        iBufferAgg = NULL;

        }

    }

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::FindParserFileL

// -----------------------------------------------------------------------------

//

CMetaDataParser* CMetaDataUtilityBody::FindParserFileL(

	RFile& aFile )

	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::FindParserFileL"));

#endif

	iSource = CMetaDataSourceFile::NewL(aFile);	

	if (iSource) // MetaDataParserRA needs this information

	{

		((CMetaDataSourceFile*)iSource)->SetFileHandler(aFile);

		((CMetaDataSourceFile*)iSource)->SetIsFileHandler(ETrue); 

	}

	return DoFindParserFileL();

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::FindParserFileL

// -----------------------------------------------------------------------------

//

CMetaDataParser* CMetaDataUtilityBody::FindParserFileL(

	const TDesC& aFileName )

	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::FindParserFileL"));

#endif

	iSource = CMetaDataSourceFile::NewL(aFileName);

	return DoFindParserFileL();

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::DoFindParserFileL

// -----------------------------------------------------------------------------

//

CMetaDataParser* CMetaDataUtilityBody::DoFindParserFileL()

	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::DoFindParserFileL"));

#endif

	TBool fileProtected = ((CMetaDataSourceFile*)iSource)->FileProtected();

	TBool keyExist = ETrue;

	if(fileProtected)

		{

		keyExist = ((CMetaDataSourceFile*)iSource)->KeyExist();

		}

	TInt drmType = ((CMetaDataSourceFile*)iSource)->DrmType();

	CMetaDataParser* parser = NULL;

	// DRMv1 file with no rights, read from DCF header.

	if ( (drmType == ContentAccess::EOma1Dcf && !keyExist) || 

	        (drmType == ContentAccess::EOma1DcfBased) )

		{

			parser = CMetaDataParserFactory::CreateDcf1FileParserL(*iSource);

			if(parser)

				{

				return parser;

				}

			else 

				{

				return NULL;			

				}

		}

	if ( drmType == ContentAccess::EOma2Dcf )

		{

			parser = CMetaDataParserFactory::CreateDcf2FileParserL(*iSource);

			if(parser)

				{

				return parser;

				}

			else 

				{

				return NULL;			

				}

		}

	TInt start = 0;

	((CMetaDataSourceFile*)iSource)->Seek(ESeekStart, start);

	parser = CMetaDataParserFactory::CreateID3ParserL(*iSource);

	if(parser)

		{

		iID3Version = (TInt)(parser->ID3Version());

		}

	 if (parser == NULL)

	 	{

	 	TRAPD(err, parser = CMetaDataParserFactory::CreateMP4ParserFileL(*iSource));

	    if(!err && parser )

		   {

			return parser;

			}

	 	}

	if (parser == NULL)

		{

		TInt start = 0;

		((CMetaDataSourceFile*)iSource)->Seek(ESeekStart, start);

		TRAPD(err, parser = CMetaDataParserFactory::CreateWMAParserFileL(*iSource));

	    if(!err && parser )

		   	{

			return parser;

			}		

		}

#ifndef __METADATA_UTILITY_DISABLE_RA_SUPPORT    // NOT define		

	if (parser == NULL)

		{

		TInt start = 0;

		((CMetaDataSourceFile*)iSource)->Seek(ESeekStart, start);

		parser = CMetaDataParserFactory::CreateRAParserL(*iSource);	

		}

#endif		

	return parser;

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::FindParserDesL

// -----------------------------------------------------------------------------

//

CMetaDataParser* CMetaDataUtilityBody::FindParserDesL(

	const TDesC8& aDes )

	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::FindParserDesL"));

#endif

	CMetaDataParser* parser = NULL;

	TRAPD(err, parser = CMetaDataParserFactory::CreateMP4ParserDesL(aDes));

	if ( !err && parser )

		{

		return parser;

		}

	iSource = CMetaDataSourceDescriptor::NewL(aDes);

	parser = CMetaDataParserFactory::CreateID3ParserL(*iSource);

	if ( !err && parser )

		{

		return parser;

		}

#ifndef __METADATA_UTILITY_DISABLE_RA_SUPPORT    // NOT define						

	parser = CMetaDataParserFactory::CreateRAParserL(*iSource);			

#endif			

	return parser;

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::ResetL

// -----------------------------------------------------------------------------

//

void CMetaDataUtilityBody::ResetL()

   	{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::ResetL"));

#endif

	delete iSource;

	iSource = NULL;

	delete iParser;

	iParser = NULL;

	delete iContainer;

	iContainer = NULL;

	iContainer = CMetaDataFieldContainer::NewL();

	}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::ID3Version

// -----------------------------------------------------------------------------

//	

TID3Version CMetaDataUtilityBody::ID3Version()

{

	return (TID3Version)iID3Version;

}

// -----------------------------------------------------------------------------

// CMetaDataUtilityBody::OpenFileL with MIME Type info

// -----------------------------------------------------------------------------

//

void CMetaDataUtilityBody::OpenFileL(

	const TDesC& aFileName,

	const RArray<TMetaDataFieldId>& aWantedFields,

	const TDesC8& aMimeType )

	{

	#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataUtilityBody::OpenFileL with MimeType"));

	#endif

	if ( iParser )

		{

		User::Leave(KErrAlreadyExists);

		}

		if(KErrNone == IsSupportedMimeType(aMimeType))	

	{

		iParser = FindParserFileL(aFileName, aMimeType);

	}

	else

	{

		User::Leave(KErrNotSupported);	

	}

	if ( iParser )

	{

		iParser->CommonParseL((CMetaDataSourceFile*)iSource, aWantedFields, *iContainer);