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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Metadata backend engine
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*
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*/
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#ifndef CMETADATA_UTILITY_ITF_H
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#define CMETADATA_UTILITY_ITF_H
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#ifdef __cplusplus
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#include <e32base.h>
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#include <e32std.h>
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#include <e32hashtab.h>
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#include <OpenMAXAL.h>
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#include <hxmetadatautil.h>
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#include <MetaDataUtility.h>
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#include <MetaDataFieldContainer.h>
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#include <MetaDataField.hrh>
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#define MAX_EXTENSION_SIZE 10
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#define uint32 unsigned int
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class CS60MetadataUtilityItf;
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class CHXMetadataUtilityItf;
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NONSHARABLE_CLASS(CMetadataUtilityItf)
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{
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public:
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enum TValueEncodingType
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{
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EUnknownEncoding, EAsciiEncoding, EUnicodeEncoding, EBinaryEncoding,
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};
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static CMetadataUtilityItf* New(char* uri);
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CMetadataUtilityItf();
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virtual ~CMetadataUtilityItf();
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TInt ParseSource(char* uri);
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TInt OpenSource(char* uri);
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TInt CalculateNumMetadataItems(TUint*);
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char* GetKey(TInt index);
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TInt GetValueSize(TInt index);
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TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
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TInt* encodingType);
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//helper function
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//extracts left part of input descriptor upto (maxLen-1) and copies content in outPtr
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//append a null terminator
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static TInt ExtractUCS2(TDesC& inDes, char* outPtr, TInt maxLen);
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private:
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CS60MetadataUtilityItf* m_pS60Util;
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CHXMetadataUtilityItf* m_pHXUtil;
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};
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NONSHARABLE_CLASS(CS60MetadataUtilityItf)
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{
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public:
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static CS60MetadataUtilityItf* New();
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~CS60MetadataUtilityItf();
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TInt CalculateNumMetadataItems(TUint*);
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char* GetKey(TInt index);
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TInt GetValueSize(TInt index);
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TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
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TInt* encodingType);
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TInt ParseSource(TDesC&);
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char* KeyMapping(TMetaDataFieldId);
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TInt ValueEncoding(TMetaDataFieldId);
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static bool IsSupportedExtension(char* extn);
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TInt Reset();
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private:
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CS60MetadataUtilityItf();
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void ConstructL();
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CMetaDataUtility* pMetaDataUtility; //S60MetadataUtility
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TUint uNumMetadataItems;
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};
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NONSHARABLE_CLASS(CHXMetadataUtilityItf)
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{
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public:
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static CHXMetadataUtilityItf* New();
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~CHXMetadataUtilityItf();
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TInt CalculateNumMetadataItems(TUint*);
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char* GetKey(TInt index);
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TInt ValueEncoding(HXMetaDataKeys::EHXMetaDataId fldID);
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TInt GetValueSize(TInt index);
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TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
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TInt* encodingType);
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TInt ParseSource(TDesC&);
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char* KeyMapping(HXMetaDataKeys::EHXMetaDataId);
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TInt Reset();
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private:
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CHXMetadataUtilityItf();
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void ConstructL();
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CHXMetaDataUtility *pHXMetaDataUtility;
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TUint uNumMetadataItems;
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};
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#else
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extern void* mmf_metadata_utility_init(char*);
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extern void mmf_metadata_utility_destroy(void* context);
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extern XAresult mmf_metadata_utility_parse_source(void* , char*);
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extern XAresult mmf_get_item_count(void* context, XAuint32* itemCount);
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extern XAresult mmf_get_key_size(void* context, XAuint32 keyIndex, XAuint32* keySize);
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extern XAresult mmf_get_key(void* context, XAuint32 index,XAuint32 keySize, XAMetadataInfo *pKey);
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extern XAresult mmf_get_value_size(void* context, XAuint32 index, XAuint32 *pValueSize);
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extern XAresult mmf_get_value(void* context, XAuint32 index, XAuint32 valueSize, XAMetadataInfo *pValue);
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#endif //__cplusplus
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#endif
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