sl@0: /*
sl@0: * Copyright (c) 2003-2009 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 the License "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: 
sl@0: #include <ecom/ecom.h>
sl@0: #include "agentinfo.h"
sl@0: #include <caf/agent.h>
sl@0: #include <caf/agentfactory.h>
sl@0: #include <caf/agentinterface.h>
sl@0: 
sl@0: using namespace ContentAccess;
sl@0: 
sl@0: // Default buffer size of zero
sl@0: const TInt KCafApparcBufferSize = 0;
sl@0: 
sl@0: CAgentInfo* CAgentInfo::NewLC(const CImplementationInformation& aImplInfo)
sl@0: 	{
sl@0: 	CAgentInfo* self = new (ELeave) CAgentInfo;
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aImplInfo);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CAgentInfo::CAgentInfo()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CAgentInfo::~CAgentInfo()
sl@0: 	{
sl@0: 	iSupplierMimeTypes.ResetAndDestroy();
sl@0: 	iSupplierMimeTypes.Close();
sl@0: 	iConsumerMimeTypes.ResetAndDestroy();
sl@0: 	iConsumerMimeTypes.Close();
sl@0: 	
sl@0: 	// Delete the agent manager and agent factory, this may unload the agent DLL
sl@0: 	delete iAgentManager;
sl@0: 	delete iAgentFactory;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void CAgentInfo::ConstructL(const CImplementationInformation& aImplInfo)
sl@0: 	{
sl@0: 	// Set up the agent member with the name and Uid of the agent
sl@0: 	iAgent.SetValue(aImplInfo.DisplayName(), aImplInfo.ImplementationUid());
sl@0: 
sl@0: 	// get the name of the agents private directory
sl@0: 	TInt length = aImplInfo.OpaqueData().Length();
sl@0: 	if(length > KMaxSIDLength)
sl@0: 		{
sl@0: 		User::Leave(KErrCorrupt);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		iPrivateDirectoryName.Copy(aImplInfo.OpaqueData().Left(KMaxSIDLength));
sl@0: 		}
sl@0: 			
sl@0: 	// Extract from the data field from the info.
sl@0: 	// The data field should be of the form:
sl@0: 	// "<bufferlength>|<supplier1>,<supplier2>,....,<suppliern>:<consumer1>,<consumer2>"
sl@0: 	// bufferlength is the desired length of the buffer passed from apparc to DoRecognize
sl@0: 	TPtrC8 data(aImplInfo.DataType());
sl@0: 	TPtrC8 supplier(KNullDesC8());
sl@0: 	TPtrC8 consumer(KNullDesC8());
sl@0: 
sl@0: 	// Search for the "|" field to delimit buffersize and supplier mime types
sl@0: 	TInt index = data.LocateF('|');
sl@0: 	if(index < 0)
sl@0: 		{
sl@0: 		// No default buffersize, ie. corrupt
sl@0: 		User::Leave(KErrCorrupt);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TPtrC8 buffersize(data.Left(index));
sl@0: 		TLex8 bufferLex(buffersize);
sl@0: 		bufferLex.Val(iPreferredBufferSize);
sl@0: 
sl@0: 		// Make sure a buffer size was actually specified before the | character
sl@0: 		if(iPreferredBufferSize == 0)
sl@0: 			{
sl@0: 			iPreferredBufferSize = KCafApparcBufferSize;
sl@0: 			}
sl@0: 
sl@0: 		// Make sure '|' is not the last character
sl@0: 		if (index + 1 < data.Length())
sl@0: 			{
sl@0: 			data.Set(aImplInfo.DataType().Mid(index + 1));
sl@0: 			}
sl@0: 		else 
sl@0: 			{
sl@0: 			User::Leave(KErrCorrupt);
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	
sl@0: 	// Search for the ":" field to delimit supplier and consumer
sl@0: 	index = data.LocateF(':');
sl@0: 	
sl@0: 	// If the colon was present, then set the pointers appropriately
sl@0: 	if (index >= 0)
sl@0: 		{
sl@0: 		// Set supplier pointer
sl@0: 		supplier.Set(data.Left(index));
sl@0: 
sl@0: 		// Check that ':' is not the last character before setting consumer pointer
sl@0: 		if (index + 1 < data.Length())
sl@0: 			{
sl@0: 			consumer.Set(data.Mid(index + 1));
sl@0: 			}
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		User::Leave(KErrCorrupt);
sl@0: 		}
sl@0: 
sl@0: 	// Now parse the supplier mime types
sl@0: 	ParseMimeTypesL(supplier, iSupplierMimeTypes);
sl@0: 	
sl@0: 	// Do the same for the consumer mime types
sl@0: 	ParseMimeTypesL(consumer, iConsumerMimeTypes);
sl@0: 	}
sl@0: 
sl@0: CAgentFactory& CAgentInfo::AgentFactoryL()
sl@0: 	{
sl@0: 	// Create the agent factory if it hasn't been done already
sl@0: 	if (!iAgentFactory)
sl@0: 		{
sl@0: 		iAgentFactory = CAgentFactory::NewL(iAgent.ImplementationUid());
sl@0: 		}
sl@0: 	return *iAgentFactory;
sl@0: 	}
sl@0: 
sl@0: CAgentManager& CAgentInfo::AgentManagerL()
sl@0: 	{
sl@0: 	// Create the agent manager
sl@0: 	if (!iAgentManager)
sl@0: 		{
sl@0: 		iAgentManager = AgentFactoryL().CreateManagerL();
sl@0: 		}
sl@0: 	return *iAgentManager;
sl@0: 	}	
sl@0: 
sl@0: TBool CAgentInfo::IsSupportedSupplier(const TDesC8& aSupplierMime) const
sl@0: 	{
sl@0: 	for (TInt i = 0; i < iSupplierMimeTypes.Count(); ++i)
sl@0: 		{
sl@0: 		if (aSupplierMime == *iSupplierMimeTypes[i])
sl@0: 			{
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		}
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: TBool CAgentInfo::IsSupportedConsumer(const TDesC8& aConsumerMime) const
sl@0: 	{
sl@0: 
sl@0: 	for (TInt i = 0; i < iConsumerMimeTypes.Count(); ++i)
sl@0: 		{
sl@0: 		if (aConsumerMime == *iConsumerMimeTypes[i])
sl@0: 			{
sl@0: 			return ETrue;
sl@0: 			}
sl@0: 		}
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 		
sl@0: const RPointerArray<HBufC8>& CAgentInfo::SupplierMimeTypes() const
sl@0: 	{
sl@0: 	return iSupplierMimeTypes;
sl@0: 	}
sl@0: 
sl@0: const RPointerArray<HBufC8>& CAgentInfo::ConsumerMimeTypes() const
sl@0: 	{
sl@0: 	return iConsumerMimeTypes;
sl@0: 	}
sl@0: 
sl@0: void CAgentInfo::AddToArrayL(const TDesC8& aElement, 
sl@0: 							 RPointerArray<HBufC8>& aArray)
sl@0: 	{
sl@0: 	// Don't bother adding empty elements
sl@0: 	if (aElement.Length())
sl@0: 		{
sl@0: 		HBufC8* newElem = aElement.AllocLC();
sl@0: 		TPtr8 lowerCasePtr = newElem->Des();
sl@0: 		lowerCasePtr.LowerCase();
sl@0: 		User::LeaveIfError(aArray.Append(newElem));
sl@0: 		CleanupStack::Pop(newElem);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void CAgentInfo::ParseMimeTypesL(const TDesC8& aBuf, 
sl@0: 								 RPointerArray<HBufC8>& aMimeTypes)
sl@0: 	{
sl@0: 	TPtrC8 ptr(aBuf);
sl@0: 	TInt pos = 0;
sl@0: 	while ((pos = ptr.LocateF(',')) >= 0)
sl@0: 		{
sl@0: 		// Take into account possibility of ,,
sl@0: 		if (pos > 0)
sl@0: 			{
sl@0: 			AddToArrayL(ptr.Left(pos), aMimeTypes);
sl@0: 			}
sl@0: 
sl@0: 		// Now, move the pointer to the position after the ','. BUT if the
sl@0: 		// ',' is the last position, then we are done, so return (a bit
sl@0: 		// dirty, but makes things easier
sl@0: 		if (pos + 1 < ptr.Length())
sl@0: 			{
sl@0: 			ptr.Set(ptr.Mid(pos + 1));
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			// The ',' is the last character, so quit
sl@0: 			return;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	// Now extract the last mime type.
sl@0: 	AddToArrayL(ptr, aMimeTypes);
sl@0: 	}
sl@0: 
sl@0: TInt CAgentInfo::PreferredBufferSize() const
sl@0: 	{
sl@0: 	return iPreferredBufferSize;
sl@0: 	}
sl@0: 
sl@0: const TDesC& CAgentInfo::PrivateDirectoryName() const
sl@0: 	{
sl@0: 	return iPrivateDirectoryName;
sl@0: 	}
sl@0: 	
sl@0: TAgent& CAgentInfo::Agent()
sl@0: 	{
sl@0: 	return iAgent;
sl@0: 	}