contentmgmt/contentaccessfwfordrm/source/caf/agentinfo.cpp
changeset 0 2c201484c85f
child 8 35751d3474b7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contentmgmt/contentaccessfwfordrm/source/caf/agentinfo.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,250 @@
+/*
+* Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+#include <ecom/ecom.h>
+#include "agentinfo.h"
+#include "agent.h"
+#include "agentfactory.h"
+#include "agentinterface.h"
+
+using namespace ContentAccess;
+
+// Default buffer size of zero
+const TInt KCafApparcBufferSize = 0;
+
+CAgentInfo* CAgentInfo::NewLC(const CImplementationInformation& aImplInfo)
+	{
+	CAgentInfo* self = new (ELeave) CAgentInfo;
+	CleanupStack::PushL(self);
+	self->ConstructL(aImplInfo);
+	return self;
+	}
+
+CAgentInfo::CAgentInfo()
+	{
+	}
+
+CAgentInfo::~CAgentInfo()
+	{
+	iSupplierMimeTypes.ResetAndDestroy();
+	iSupplierMimeTypes.Close();
+	iConsumerMimeTypes.ResetAndDestroy();
+	iConsumerMimeTypes.Close();
+	
+	// Delete the agent manager and agent factory, this may unload the agent DLL
+	delete iAgentManager;
+	delete iAgentFactory;
+	}
+
+
+void CAgentInfo::ConstructL(const CImplementationInformation& aImplInfo)
+	{
+	// Set up the agent member with the name and Uid of the agent
+	iAgent.SetValue(aImplInfo.DisplayName(), aImplInfo.ImplementationUid());
+
+	// get the name of the agents private directory
+	TInt length = aImplInfo.OpaqueData().Length();
+	if(length > KMaxSIDLength)
+		{
+		User::Leave(KErrCorrupt);
+		}
+	else
+		{
+		iPrivateDirectoryName.Copy(aImplInfo.OpaqueData().Left(KMaxSIDLength));
+		}
+			
+	// Extract from the data field from the info.
+	// The data field should be of the form:
+	// "<bufferlength>|<supplier1>,<supplier2>,....,<suppliern>:<consumer1>,<consumer2>"
+	// bufferlength is the desired length of the buffer passed from apparc to DoRecognize
+	TPtrC8 data(aImplInfo.DataType());
+	TPtrC8 supplier(KNullDesC8());
+	TPtrC8 consumer(KNullDesC8());
+
+	// Search for the "|" field to delimit buffersize and supplier mime types
+	TInt index = data.LocateF('|');
+	if(index < 0)
+		{
+		// No default buffersize, ie. corrupt
+		User::Leave(KErrCorrupt);
+		}
+	else
+		{
+		TPtrC8 buffersize(data.Left(index));
+		TLex8 bufferLex(buffersize);
+		bufferLex.Val(iPreferredBufferSize);
+
+		// Make sure a buffer size was actually specified before the | character
+		if(iPreferredBufferSize == 0)
+			{
+			iPreferredBufferSize = KCafApparcBufferSize;
+			}
+
+		// Make sure '|' is not the last character
+		if (index + 1 < data.Length())
+			{
+			data.Set(aImplInfo.DataType().Mid(index + 1));
+			}
+		else 
+			{
+			User::Leave(KErrCorrupt);
+			}
+		}
+
+	
+	// Search for the ":" field to delimit supplier and consumer
+	index = data.LocateF(':');
+	
+	// If the colon was present, then set the pointers appropriately
+	if (index >= 0)
+		{
+		// Set supplier pointer
+		supplier.Set(data.Left(index));
+
+		// Check that ':' is not the last character before setting consumer pointer
+		if (index + 1 < data.Length())
+			{
+			consumer.Set(data.Mid(index + 1));
+			}
+		}
+	else
+		{
+		User::Leave(KErrCorrupt);
+		}
+
+	// Now parse the supplier mime types
+	ParseMimeTypesL(supplier, iSupplierMimeTypes);
+	
+	// Do the same for the consumer mime types
+	ParseMimeTypesL(consumer, iConsumerMimeTypes);
+	}
+
+CAgentFactory& CAgentInfo::AgentFactoryL()
+	{
+	// Create the agent factory if it hasn't been done already
+	if (!iAgentFactory)
+		{
+		iAgentFactory = CAgentFactory::NewL(iAgent.ImplementationUid());
+		}
+	return *iAgentFactory;
+	}
+
+CAgentManager& CAgentInfo::AgentManagerL()
+	{
+	// Create the agent manager
+	if (!iAgentManager)
+		{
+		iAgentManager = AgentFactoryL().CreateManagerL();
+		}
+	return *iAgentManager;
+	}	
+
+TBool CAgentInfo::IsSupportedSupplier(const TDesC8& aSupplierMime) const
+	{
+	for (TInt i = 0; i < iSupplierMimeTypes.Count(); ++i)
+		{
+		if (aSupplierMime == *iSupplierMimeTypes[i])
+			{
+			return ETrue;
+			}
+		}
+	return EFalse;
+	}
+
+TBool CAgentInfo::IsSupportedConsumer(const TDesC8& aConsumerMime) const
+	{
+
+	for (TInt i = 0; i < iConsumerMimeTypes.Count(); ++i)
+		{
+		if (aConsumerMime == *iConsumerMimeTypes[i])
+			{
+			return ETrue;
+			}
+		}
+	return EFalse;
+	}
+		
+const RPointerArray<HBufC8>& CAgentInfo::SupplierMimeTypes() const
+	{
+	return iSupplierMimeTypes;
+	}
+
+const RPointerArray<HBufC8>& CAgentInfo::ConsumerMimeTypes() const
+	{
+	return iConsumerMimeTypes;
+	}
+
+void CAgentInfo::AddToArrayL(const TDesC8& aElement, 
+							 RPointerArray<HBufC8>& aArray)
+	{
+	// Don't bother adding empty elements
+	if (aElement.Length())
+		{
+		HBufC8* newElem = aElement.AllocLC();
+		TPtr8 lowerCasePtr = newElem->Des();
+		lowerCasePtr.LowerCase();
+		User::LeaveIfError(aArray.Append(newElem));
+		CleanupStack::Pop(newElem);
+		}
+	}
+
+void CAgentInfo::ParseMimeTypesL(const TDesC8& aBuf, 
+								 RPointerArray<HBufC8>& aMimeTypes)
+	{
+	TPtrC8 ptr(aBuf);
+	TInt pos = 0;
+	while ((pos = ptr.LocateF(',')) >= 0)
+		{
+		// Take into account possibility of ,,
+		if (pos > 0)
+			{
+			AddToArrayL(ptr.Left(pos), aMimeTypes);
+			}
+
+		// Now, move the pointer to the position after the ','. BUT if the
+		// ',' is the last position, then we are done, so return (a bit
+		// dirty, but makes things easier
+		if (pos + 1 < ptr.Length())
+			{
+			ptr.Set(ptr.Mid(pos + 1));
+			}
+		else
+			{
+			// The ',' is the last character, so quit
+			return;
+			}
+		}
+
+	// Now extract the last mime type.
+	AddToArrayL(ptr, aMimeTypes);
+	}
+
+TInt CAgentInfo::PreferredBufferSize() const
+	{
+	return iPreferredBufferSize;
+	}
+
+const TDesC& CAgentInfo::PrivateDirectoryName() const
+	{
+	return iPrivateDirectoryName;
+	}
+	
+TAgent& CAgentInfo::Agent()
+	{
+	return iAgent;
+	}