sl@0: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0: */
sl@0: 
sl@0: #include "CachedCustomResolver.h"
sl@0: #include <ecom/implementationproxy.h>
sl@0: #include <ecom/ecomerrorcodes.h>
sl@0: 
sl@0: /**
sl@0: This function is used for cleanup support of ListAllL call.
sl@0: */
sl@0: LOCAL_C void CleanupEComPtrArray(TAny* aArray)
sl@0: 	{
sl@0: 	RImplInfoArray* self = static_cast<RImplInfoArray*>(aArray);
sl@0: 	self->Reset();
sl@0: 	delete self;
sl@0: 	}
sl@0: 
sl@0: // static factory method to instantiate the resolver.
sl@0: CExampleResolver* CExampleResolver::NewL(MPublicRegistry& aRegistry)
sl@0: 	{
sl@0: 	CExampleResolver* self = new(ELeave) CExampleResolver(aRegistry);
sl@0: 	(void)self->GetSignature();
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CExampleResolver::~CExampleResolver()
sl@0: 	{
sl@0: 	// nothing
sl@0: 	}
sl@0: 
sl@0: CExampleResolver::CExampleResolver(MPublicRegistry& aRegistry)
sl@0: : CResolver(aRegistry)
sl@0: 	{
sl@0: 	// nothing to do
sl@0: 	}
sl@0: 
sl@0: // stub for the IdentifyImplementationL pure virtual
sl@0: TUid CExampleResolver::IdentifyImplementationL(TUid aInterfaceUid, 
sl@0: 											   const TEComResolverParams&) const
sl@0: 	{
sl@0: 	RImplInfoArray& implementationsInfo = iRegistry.ListImplementationsL(aInterfaceUid);
sl@0: 	if (implementationsInfo.Count())
sl@0: 		{
sl@0: 		return implementationsInfo[0]->ImplementationUid();
sl@0: 		}
sl@0: 	return KNullUid;
sl@0: 	}
sl@0: 
sl@0: // stub for the ListAllL pure virtual
sl@0: RImplInfoArray* CExampleResolver::ListAllL(TUid aInterfaceUid, 
sl@0: 										   const TEComResolverParams&) const
sl@0: 	{
sl@0: 	TBool checkMyVersion = (aInterfaceUid == KCustomResolverInterfaceUid);
sl@0: 	TBool foundMyself = EFalse;
sl@0: 
sl@0: 	// Ownership of the returned pointer is passed back to the caller.
sl@0: 	// Hence need to new it.
sl@0: 	RImplInfoArray* retList = new(ELeave) RImplInfoArray;
sl@0: 	CleanupStack::PushL(TCleanupItem(CleanupEComPtrArray, retList));
sl@0: 
sl@0: 	RImplInfoArray& fullList = iRegistry.ListImplementationsL(aInterfaceUid);
sl@0: 	const TInt numImps = fullList.Count();
sl@0: 	for(TInt index = 0; index < numImps; ++index)
sl@0: 		{
sl@0: 		if (checkMyVersion)
sl@0: 			{
sl@0: 			VerifyVersionL(fullList[index], foundMyself);
sl@0: 			}
sl@0: 
sl@0: 		User::LeaveIfError(retList->Append(fullList[index]));
sl@0: 		}
sl@0: 
sl@0: 	if (checkMyVersion && !foundMyself)
sl@0: 		{
sl@0: 		RDebug::Print(_L("ECOM: error cachedcustomresolver not in list\n"));
sl@0: 		User::Leave(KEComErrMismatchedTags);
sl@0: 		}
sl@0: 
sl@0: 	// Reset the member variable because we are passing ownership back
sl@0: 	CleanupStack::Pop(retList);
sl@0: 	return retList;
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // Used by test code in list request where the i/f UID is KCustomResolverInterfaceUid.
sl@0: // This gives the custom resolver object a chance to check that the version listed
sl@0: // in ECOM registry matches the current running object.
sl@0: //
sl@0: // param aImplInfo - the implementation object to check
sl@0: // param aMe - output parameter to tell the call if 'this' is found
sl@0: void CExampleResolver::VerifyVersionL(const CImplementationInformation* aImplInfo, TBool& aMe) const
sl@0: 	{
sl@0: 	const TUid KMyImplUid = {0x10009E12};
sl@0: 	if (aImplInfo->ImplementationUid() == KMyImplUid)
sl@0: 		{
sl@0: 		if (GetSignature() != aImplInfo->Version())
sl@0: 			{
sl@0: 			RDebug::Print(_L("ECOM: error registry has ver %d, binary has %d\n"), aImplInfo->Version(), GetSignature());
sl@0: 			// leave with un-used cwcode. But even if ECOM will use this in
sl@0: 			// the future, the code will not occur in a list request.
sl@0: 			User::Leave(KEComErrMismatchedTags);
sl@0: 			}
sl@0: 		aMe = ETrue; // found myself
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // __________________________________________________________________________
sl@0: // Exported proxy for instantiation method resolution
sl@0: // Define the interface UIDs
sl@0: const TImplementationProxy ImplementationTable[] = 
sl@0: 	{
sl@0: 	IMPLEMENTATION_PROXY_ENTRY(0x10009E12, CExampleResolver::NewL)
sl@0: 	};
sl@0: 
sl@0: EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
sl@0: 	{
sl@0: 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
sl@0: 	return ImplementationTable;
sl@0: 	}