Harvester Plug-in ECom interface definition. Harvester plug-in implementation needs to inherit this class and implement the pure virtual method (HarvestL) which exist in this interface.

Example:

class CMyHarvesterPlugin: public CHarvesterPlugin { public:

// This method should also be overwritten in the plug-in void GetObjectType( const TDesC& aUri, TDes& aObjectType );

void HarvestL( CHarvesterData* aHD ); }

void GetObjectType( const TDesC& aUri, TDes& aObjectType ) { // Idea in this method is that it MUST return one of the object types // supported by the MdE DB - for example "Image", "Video" or "Audio". // If plug-in supports only one type of objects then it can just return // always that like: // TPtrC ptrImage( KImage ); // aObjectType.Copy( KImage ); return; // // However if multiple MdE object types are supported then file content // needs to be checked for example from file MIME-type like here:

TRAPD( err, content = CContent::NewL( aUri ) ); if (err == KErrNone) { err = content->GetStringAttribute( EMimeType, mime ); delete content; }

TPtrC ptrImage( KImage );

// MdsUtils::Find tries to find word "image" from the MIME-type // so that we know the file is an image if( MdsUtils::Find( mime, ptrImage ) != KErrNotFound ) { WRITELOG1( "CHarvesterOMADRMPlugin::GetObjectType - mimetype %S. Object type changed to Image", &mime ); aObjectType.Copy( KImage ); return; }

TPtrC ptrVideo( KVideo ); if( MdsUtils::Find( mime, ptrVideo ) != KErrNotFound ) { WRITELOG1( "CHarvesterOMADRMPlugin::GetObjectType - mimetype %S. Object type changed to Video", &mime ); aObjectType.Copy( KVideo ); return; } }

void HarvestL( CHarvesterData* aHD ) { CMdEObject& mdeObject = aHD->MdeObject();

CMdeObjectWrapper* wrapper = CMdeObjectWrapper::NewL(); }