/*

* 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 implements 

*

*/

// INCLUDE FILES

#include	"MetaDataParserRA.h"

#ifdef _DEBUG

#include	<e32svr.h>

#endif

#include <s32mem.h>

#include <hxmetadatautil.h>

#include "MetaDataSourceFile.h"

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

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

// CMetaDataParserRA::CMetaDataParserRA

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

// might leave.

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

//

CMetaDataParserRA::CMetaDataParserRA(

	CMetaDataSource& aSource )

	:	iSource(aSource)

	{

    }

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

// CMetaDataParserRA::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CMetaDataParserRA::ConstructL()

    {

	if ( ValidateL() )

		{

		iHxMetaDataUtility = CHXMetaDataUtility::NewL();

		}

	else

	    {

	    User::Leave(KErrNotSupported);    

	    }

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataParserRA::ConstructL - Done"));

#endif

    }

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

// CMetaDataParserRA::NewL

// Two-phased constructor.

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

//

CMetaDataParserRA* CMetaDataParserRA::NewL(

	CMetaDataSource& aSource )

    {

#ifdef _DEBUG

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

#endif

	CMetaDataParserRA* self = new( ELeave ) CMetaDataParserRA(aSource);

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CMetaDataParserRA::~CMetaDataParserRA()

	{

	delete iCharacterSet;

	if (iHxMetaDataUtility)

	    {

	    TRAPD(err, iHxMetaDataUtility->ResetL());

	    if (err != KErrNone)

	        {

	        #ifdef _DEBUG

	            RDebug::Print(_L("CMetaDataParserRA::~CMetaDataParserRA(), err=%d"), err);

	        #endif

	        }

	    delete iHxMetaDataUtility;

	    }

	}

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

// CMetaDataParserRA::ParseL

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

//

void CMetaDataParserRA::ParseL(

	const RArray<TMetaDataFieldId>& aWantedFields,

	CMetaDataFieldContainer& aContainer )

    {

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataParserRA::ParseL"));

#endif

	iContainer = &aContainer;

	TUint count = 0;

	HXMetaDataKeys::EHXMetaDataId id;

	TFileName fileName;

	// Determine if user entered a TDesC filename or a RFile:

	if (((CMetaDataSourceFile&)iSource).IsFileHandler())

	{

		RFile rFile;

		rFile.Duplicate( ((CMetaDataSourceFile&)iSource).FileHandler() );

		TRAPD(err, iHxMetaDataUtility->OpenFileL((RFile &)rFile));	// casting necessary--compile error	

		rFile.Close();

		User::LeaveIfError(err);

	}

	else // filename

	{

        if (((CMetaDataSourceFile&)iSource).FileName().Length() > fileName.MaxLength())

        {

            #ifdef _DEBUG

                RDebug::Print(_L("CMetaDataParserRA::ParseL: Invalid File name"));

            #endif

            return;                           

        }

		fileName.Copy(((CMetaDataSourceFile&)iSource).FileName());

		iHxMetaDataUtility->OpenFileL(fileName);			

	}

	TInt status = iHxMetaDataUtility->GetMetaDataCount(count);

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataParserRA::ParseL: Meta Data Count = %d"), count);

#endif	

	if ( aWantedFields.Count() == 0 ) // Get all attributes from HxMetaDataUtil

	{		

		for (TUint i=0; i<count;i++)

		{

			HBufC *pDes = NULL;

			status = iHxMetaDataUtility->GetMetaDataAt(i, id, pDes);

			if (status == KErrNone)

			{

				switch (id)

				{

					case HXMetaDataKeys::EHXTitle:

					{

						iContainer->AppendL( EMetaDataSongTitle, *pDes );

						break;				

					}

					case HXMetaDataKeys::EHXAuthor:

					{

						iContainer->AppendL( EMetaDataArtist, *pDes );

						break;				

					}

					case HXMetaDataKeys::EHXGenre:

					{

						iContainer->AppendL( EMetaDataGenre, *pDes );

						break;				

					}

					case HXMetaDataKeys::EHXPerformer:

					{

						iContainer->AppendL( EMetaDataComposer, *pDes );

						break;				

					}

					case HXMetaDataKeys::EHXCopyright:

					{

						iContainer->AppendL( EMetaDataCopyright, *pDes );

						break;				

					}												

					default:

						break;

				} // End switch

			} // end if

			else

			{

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataParserRA::ParseL: Error %d returned for count = %d"), status, count);

#endif	

			}

		} // end  For

	} // end if

	else   	// Only get attributes in the wanted field array

		{

			TInt count( aWantedFields.Count() );

			TInt err = KErrNone;

			for ( TInt i = 0; i < count; i++ )

			{

				switch ( aWantedFields[ i ] )

				{

					case EMetaDataSongTitle:

						err = GetTitleL(count);

						break;

					case EMetaDataArtist:

						err = GetArtistL(count);

						break;

					case EMetaDataGenre:

						err = GetGenreL(count);

						break;

					case EMetaDataComposer:					

						err = GetComposerL(count);

						break;									

					case EMetaDataCopyright:

						err = GetCopyrightL(count);

						break;

					default:

					break;

				} // end switch

				if (err != KErrNone)

					{

					// Handle error

					}

			} // end for

		} // end else

    }

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

// CMetaDataParserRA::ValidateL

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

//

TBool CMetaDataParserRA::ValidateL()

	{

	TInt size;

	User::LeaveIfError( iSource.Size( size ) );

	if ( size <= 0 )

		{

		return EFalse;

		}

		// Anything else? Call GetMetaDataCount?

	return ETrue;

	}

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

// CMetaDataParserRA::OpenFileL

// 

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

//

void CMetaDataParserRA::OpenFileL(RFile& aFile)

    {

#ifdef _DEBUG

	RDebug::Print(_L("CMetaDataParserRA::OpenFileL"));

#endif

	if (iHxMetaDataUtility)

		{

		iHxMetaDataUtility->OpenFileL((TDesC &)aFile);	

		}

    }

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

//

void CMetaDataParserRA::OpenDesL(const TDesC8& aDes)

    {

#ifdef _DEBUG

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

#endif

	if (iHxMetaDataUtility)

		{

		iHxMetaDataUtility->OpenDesL(aDes);	

		}

    }

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

// CMetaDataParserRA::GetTitleL

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

//

TInt CMetaDataParserRA::GetTitleL(TInt aCount)

	{

	TInt status = KErrNotFound;

	HXMetaDataKeys::EHXMetaDataId id;

	iData = NULL;

	status = iHxMetaDataUtility->GetMetaDataAt(aCount, id, iData);

	if (id == HXMetaDataKeys::EHXTitle)

	{

		iContainer->AppendL( EMetaDataSongTitle, *iData );

		return KErrNone;			

	}		

	return status;

	}

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

// CMetaDataParserRA::GetArtistL

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

//

TInt CMetaDataParserRA::GetArtistL(TInt aCount)

	{

	TInt status = KErrNotFound;

	HXMetaDataKeys::EHXMetaDataId id;

	iData = NULL;

	status = iHxMetaDataUtility->GetMetaDataAt(aCount, id, iData);

	if (id == HXMetaDataKeys::EHXAuthor)

	{

		iContainer->AppendL( EMetaDataArtist, *iData );

		return KErrNone;			

	}		

	return status;

	}

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

// CMetaDataParserRA::GetGenreL

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

//

TInt CMetaDataParserRA::GetGenreL(TInt aCount)

	{

	TInt status = KErrNotFound;

	HXMetaDataKeys::EHXMetaDataId id;

	iData = NULL;

	status = iHxMetaDataUtility->GetMetaDataAt(aCount, id, iData);

	if (id == HXMetaDataKeys::EHXGenre)

	{

		iContainer->AppendL( EMetaDataGenre, *iData );

		return KErrNone;			

	}		

	return status;

	}	

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

// CMetaDataParserRA::GeComposerL

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

//

TInt CMetaDataParserRA::GetComposerL(TInt aCount)

	{

	TInt status = KErrNotFound;

	HXMetaDataKeys::EHXMetaDataId id;

	iData = NULL;

	status = iHxMetaDataUtility->GetMetaDataAt(aCount, id, iData);

	if (id == HXMetaDataKeys::EHXPerformer)

	{

		iContainer->AppendL( EMetaDataComposer, *iData );

		return KErrNone;			

	}		

	return status;

	}	

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

// CMetaDataParserRA::GetCopyrightL

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

//

TInt CMetaDataParserRA::GetCopyrightL(TInt aCount)

	{

	TInt status = KErrNotFound;

	HXMetaDataKeys::EHXMetaDataId id;

	iData = NULL;

	status = iHxMetaDataUtility->GetMetaDataAt(aCount, id, iData);

	if (id == HXMetaDataKeys::EHXCopyright)

	{

		iContainer->AppendL( EMetaDataCopyright, *iData );

		return KErrNone;			

	}		

	return status;

	}	

//  End of File