harvester/common/src/harvesterpluginfactory.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 20:34:07 +0200
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/*
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* Copyright (c) 2006-2009 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:  Harvester plugin factory
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 *
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*/
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#include <e32base.h>
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#include <e32std.h>
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#include <apmrec.h>
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#include <harvesterplugin.h>
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#include <mdeobject.h>
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#include <harvesterdata.h>
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#include "harvesterpluginfactory.h"
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#include "harvesterplugininfo.h"
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#include "mdsutils.h"
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#include "harvesterlog.h"
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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//
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CHarvesterPluginFactory::CHarvesterPluginFactory() :
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    iBlacklist( NULL )
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	{
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	WRITELOG( "CHarvesterPluginFactory::CHarvesterPluginFactory()" );
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	}
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// ---------------------------------------------------------------------------
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// NewL
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CHarvesterPluginFactory* CHarvesterPluginFactory::NewL()
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	{
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	WRITELOG( "CHarvesterPluginFactory::NewL()" );
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	CHarvesterPluginFactory* self = new (ELeave) CHarvesterPluginFactory();
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	CleanupStack::PushL ( self);
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	self->ConstructL ();
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	CleanupStack::Pop ( self);
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	return self;
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	}
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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//
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CHarvesterPluginFactory::~CHarvesterPluginFactory()
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	{
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	WRITELOG( "CHarvesterPluginFactory::~CHarvesterPluginFactory()" );
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	iHarvesterPluginInfoArray.ResetAndDestroy();
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	iHarvesterPluginInfoArray.Close();
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	REComSession::FinalClose();
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	}
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// ---------------------------------------------------------------------------
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// ConstructL
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// ---------------------------------------------------------------------------
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//
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void CHarvesterPluginFactory::ConstructL()
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	{
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	WRITELOG( "CHarvesterPluginFactory::ConstructL()" );
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	SetupHarvesterPluginInfoL();
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	}
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// ---------------------------------------------------------------------------
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// GetObjectDef
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CHarvesterPluginFactory::GetObjectDefL( CHarvesterData& aHD, TDes& aObjectDef )
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	{
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	TPtrC extPtr;
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	if( MdsUtils::GetExt( aHD.Uri(), extPtr ) )
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		{
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		RPointerArray<CHarvesterPluginInfo> supportedPlugins;
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		CleanupClosePushL( supportedPlugins );
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		GetSupportedPluginsL( supportedPlugins, extPtr );
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		const TInt sCount = supportedPlugins.Count();
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		if( sCount == 1 )
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			{
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			CHarvesterPluginInfo* info = supportedPlugins[0];
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			if( info->iObjectTypes.Count() == 1 )
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				{
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				aObjectDef.Copy( *(info->iObjectTypes[0]) );
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				aHD.SetHarvesterPluginInfo( info );
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				CleanupStack::PopAndDestroy( &supportedPlugins );
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				return;
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				}
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			}
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		for( TInt i = 0; i < sCount; i++ )
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			{
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			CHarvesterPluginInfo* info = supportedPlugins[i];
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			if ( !(info->iPlugin) )
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				{
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				info->iPlugin = CHarvesterPlugin::NewL( info->iPluginUid );
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				info->iPlugin->SetQueue( info->iQueue );
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				}
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			info->iPlugin->GetObjectType( aHD.Uri(), aObjectDef );
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			if( aObjectDef.Length() > 0 )
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				{
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				aHD.SetHarvesterPluginInfo( info );
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				break;
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				}
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			}
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		CleanupStack::PopAndDestroy( &supportedPlugins );
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		}
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	else
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		{
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		aObjectDef.Zero();
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		}
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	}
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   125
	
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// ---------------------------------------------------------------------------
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// GetMimeType
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CHarvesterPluginFactory::GetMimeType(const TDesC& /*aUri*/, TDes& aMimeType)
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	{
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	_LIT( KJPGMimeType, "image/jpeg" );
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	aMimeType.Copy( KJPGMimeType );
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	}
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// ---------------------------------------------------------------------------
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// HarvestL
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TInt CHarvesterPluginFactory::HarvestL( CHarvesterData* aHD )
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	{
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#ifdef _DEBUG
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	WRITELOG1("CHarvesterPluginFactory::HarvestL - aHD->Uri: %S", &aHD->Uri() );
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#endif
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	CHarvesterPluginInfo* hpi = aHD->HarvesterPluginInfo();
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   146
		
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	if ( hpi )
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		{
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		if ( ! hpi->iPlugin )
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	   		{
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	   		hpi->iPlugin = CHarvesterPlugin::NewL( hpi->iPluginUid );
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	   		hpi->iPlugin->SetQueue( hpi->iQueue );
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	   		hpi->iPlugin->SetBlacklist( *iBlacklist );
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	   		}
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   155
			
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		if( aHD->ObjectType() == EFastHarvest || aHD->Origin() == MdeConstants::Object::ECamera )
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		   	{
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		   	hpi->iQueue.Insert( aHD, 0 );
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		    	}
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	    else
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			{
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			hpi->iQueue.AppendL( aHD );
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			}
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		hpi->iPlugin->StartHarvest();
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		return KErrNone;
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		}
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   169
		
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	return KErrNotFound;
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	}
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// ---------------------------------------------------------------------------
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// GetPluginInfos
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// ---------------------------------------------------------------------------
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//
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EXPORT_C RPointerArray<CHarvesterPluginInfo>& CHarvesterPluginFactory::GetPluginInfos()
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	{
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	return iHarvesterPluginInfoArray;
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	}
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// ---------------------------------------------------------------------------
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// SetBlacklist
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CHarvesterPluginFactory::SetBlacklist( CHarvesterBlacklist& aBlacklist )
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	{
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	WRITELOG( "CHarvesterPluginFactory::SetBlacklist()" );
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	iBlacklist = &aBlacklist;
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   190
	
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	TInt count = iHarvesterPluginInfoArray.Count();
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	for ( TInt i = 0; i < count; i++ )
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		{
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		iHarvesterPluginInfoArray[i]->iPlugin->SetBlacklist( *iBlacklist );
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		}
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   196
	
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	}
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   198
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// ---------------------------------------------------------------------------
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// SetupHarvesterPluginInfoL
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// ---------------------------------------------------------------------------
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//
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void CHarvesterPluginFactory::SetupHarvesterPluginInfoL()
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    {
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    WRITELOG( "CHarvesterPluginFactory::SetupHarvesterPluginInfo()" );
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    RImplInfoPtrArray infoArray;
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    TCleanupItem cleanupItem( MdsUtils::CleanupEComArray, &infoArray );
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    CleanupStack::PushL( cleanupItem );
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   210
 
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    CHarvesterPlugin::ListImplementationsL( infoArray );
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   212
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    for ( TInt i = infoArray.Count(); --i >= 0; )
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        {
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        // Parse the MIME types and resolve plug-in's uids from infoArray to iDataTypeArray
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        CImplementationInformation* info = infoArray[i];
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        const TBufC8<KMaxFileName>& type = info->DataType();
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        const TBufC8<KMaxFileName>& opaque = info->OpaqueData();
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        TUid implUID = info->ImplementationUid(); 
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        AddNewPluginL( type, opaque, implUID );   
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        }
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   223
    
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    CleanupStack::PopAndDestroy( &infoArray );
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    }
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// ---------------------------------------------------------------------------
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// AddNewPluginL
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// ---------------------------------------------------------------------------
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//
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void CHarvesterPluginFactory::AddNewPluginL( const TDesC8& aType,
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		const TDesC8& aOpaque, TUid aPluginUid )
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    {      
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    WRITELOG( "CHarvesterPluginFactory::AddNewPluginL" );
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   235
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    CHarvesterPluginInfo* pluginInfo = new (ELeave) CHarvesterPluginInfo;
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    CleanupStack::PushL( pluginInfo );
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   238
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    // get file extensions
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    TLex8 lex( aOpaque );
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    while ( !lex.Eos() )
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        {
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        /* Tokenizing file extensions using TLex8 */
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        lex.SkipSpaceAndMark();
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   245
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        TPtrC8 extToken = lex.NextToken();
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   247
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        HBufC* str = HBufC::NewLC( extToken.Length() );
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        str->Des().Copy( extToken );
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        pluginInfo->iExtensions.AppendL( str );
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        CleanupStack::Pop( str );
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        }
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   253
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    // get object types
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    TLex8 lexObjectTypes( aType );
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    while ( !lexObjectTypes.Eos() )
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        {
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        /* Tokenizing object types using TLex8 */
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        lexObjectTypes.SkipSpaceAndMark();
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        TPtrC8 objectTypeToken = lexObjectTypes.NextToken();
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   262
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        HBufC* str = HBufC::NewLC( objectTypeToken.Length() );
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        str->Des().Copy( objectTypeToken );
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        pluginInfo->iObjectTypes.AppendL( str );
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        CleanupStack::Pop( str );
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        }
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   268
    
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    pluginInfo->iPluginUid = aPluginUid;
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    // Load plugin
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    pluginInfo->iPlugin = CHarvesterPlugin::NewL( pluginInfo->iPluginUid );
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    pluginInfo->iPlugin->SetQueue( pluginInfo->iQueue );    
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    iHarvesterPluginInfoArray.AppendL( pluginInfo );
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    CleanupStack::Pop( pluginInfo );
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    }
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void CHarvesterPluginFactory::GetSupportedPluginsL(
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		RPointerArray<CHarvesterPluginInfo>& aSupportedPlugins, const TDesC& aExt )
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	{
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	TInt pluginInfoCount = iHarvesterPluginInfoArray.Count();
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	TInt extCount = 0;
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	for ( TInt i = pluginInfoCount; --i >= 0; )
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        {
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        CHarvesterPluginInfo* info = iHarvesterPluginInfoArray[i];
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        extCount = info->iExtensions.Count();
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        for ( TInt k = extCount; --k >= 0; )
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            {
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            TDesC* ext = info->iExtensions[k];
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            // checking against supported plugin file extensions
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            const TInt result = ext->CompareF( aExt );
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            if ( result == 0 )
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   296
                {
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                aSupportedPlugins.AppendL( info );
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                break;
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   299
                }
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            }
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        }	
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	}
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   303
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EXPORT_C TBool CHarvesterPluginFactory::IsSupportedFileExtension( const TDesC& aFileName )
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	{
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	TPtrC extPtr;
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   307
	if( MdsUtils::GetExt( aFileName, extPtr ) )
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		{
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		TInt pluginInfoCount = iHarvesterPluginInfoArray.Count();
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		TInt extCount = 0;
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		for ( TInt i = pluginInfoCount; --i >= 0; )
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			{
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			CHarvesterPluginInfo* info = iHarvesterPluginInfoArray[i];
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			extCount = info->iExtensions.Count();
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   315
			for ( TInt k = extCount; --k >= 0; )
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   316
				{
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				TDesC* ext = info->iExtensions[k];
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				// checking against supported plugin file extensions
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   319
				TInt result = MdsUtils::Compare( *ext, extPtr );
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				if ( result == 0 )
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   321
					{
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					return ETrue;
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   323
					}
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   324
				}
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   325
			}
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   326
		}
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	return EFalse;
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   328
	}
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   329
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   330
EXPORT_C TBool CHarvesterPluginFactory::IsContainerFileL( const TDesC& aURI )
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   331
	{
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   332
	TBool isContainerFile = EFalse;
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   333
	TPtrC extPtr;
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diff changeset
   334
	
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   335
	if( MdsUtils::GetExt( aURI, extPtr ) )
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   336
		{
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   337
		RPointerArray<CHarvesterPluginInfo> supportedPlugins;
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   338
		CleanupClosePushL( supportedPlugins );
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   339
		GetSupportedPluginsL( supportedPlugins, extPtr );
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   340
		const TInt sCount = supportedPlugins.Count();
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   341
		for( TInt i = 0; i < sCount; i++ )
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   342
			{
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   343
			CHarvesterPluginInfo* info = supportedPlugins[i];
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   344
			if( info->iObjectTypes.Count() >  1 )
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
				{
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
				isContainerFile = ETrue;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
				break;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
				}
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
			}
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
		CleanupStack::PopAndDestroy( &supportedPlugins );
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
		}
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
	return isContainerFile;
c53acadfccc6 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
	}