--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/appfw/apparchitecture/apserv/APSRECUTIL.CPP	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,268 @@
+// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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:
+// Classes for synchronous and asynchronous file recognitions (of a directory)
+// 
+// apsrecutil.cpp
+//
+
+
+#include "APSRECUTIL.H"
+#include "APSRECCACHE.h"
+
+//
+// CRecognitionResult
+//
+
+CRecognitionResult* CRecognitionResult::NewL(const TDesC& aFileName, const TDataRecognitionResult& aRecognitionResult)
+	{
+	ASSERT(aFileName.Find(_L("\\")) == KErrNotFound); // the filename should not contain any path
+
+	HBufC* fileName = aFileName.AllocLC();
+	HBufC8* dataType = aRecognitionResult.iDataType.Des8().AllocLC();	
+	CRecognitionResult* self = new(ELeave) CRecognitionResult(fileName, dataType, aRecognitionResult.iDataType.Uid(), aRecognitionResult.iConfidence);
+	CleanupStack::Pop(2, fileName);
+	return self;
+	}
+
+CRecognitionResult::CRecognitionResult(HBufC* aFileName, HBufC8* aDataType, TUid aUid, TInt aConfidence)
+	: iFileName(aFileName),
+	  iDataType(aDataType),
+ 	  iUid(aUid), 
+	  iConfidence(aConfidence)
+	{
+	}
+
+CRecognitionResult::~CRecognitionResult()
+	{
+	delete iFileName;
+	delete iDataType;
+	}
+
+void CRecognitionResult::Get(TDataRecognitionResult& aRecognitionResult)
+	{
+	if(iUid == KNullUid)
+		aRecognitionResult.iDataType = TDataType(*iDataType);
+	else
+		aRecognitionResult.iDataType = TDataType(iUid);
+	
+	aRecognitionResult.iConfidence = iConfidence;
+	}
+	
+
+
+TUint CRecognitionResult::GetRequiredBufferSize() const
+	{
+	return iFileName->Size() + iDataType->Size() + sizeof(TUid) + sizeof(TInt) + 2;
+	}
+
+void CRecognitionResult::WriteToStreamL(RWriteStream& aWriteStream)
+	{
+	aWriteStream.WriteUint8L(iFileName->Length());
+	aWriteStream.WriteL(*iFileName);
+	aWriteStream.WriteUint8L(iDataType->Length());
+	aWriteStream.WriteL(*iDataType);
+	aWriteStream.WriteInt32L(iUid.iUid);
+	aWriteStream.WriteInt32L(iConfidence);
+	}
+	
+//
+// CDirectoryRecognitionResult
+//
+
+CDirectoryRecognitionResult::CDirectoryRecognitionResult(HBufC* aPath, HBufC8* aDataTypeFilter)
+	: iPath(aPath), iDataTypeFilter(aDataTypeFilter)
+	{
+	iRequiredBufferSize = sizeof(TUint);
+	}
+
+CDirectoryRecognitionResult::~CDirectoryRecognitionResult()
+	{
+	delete iPath;
+	delete iDataTypeFilter;
+	
+	const TInt count = iEntries.Count();
+	for(TInt i = 0; i < count; i++)
+		iEntries[i]->Close();
+
+	iEntries.Reset();
+	}
+
+void CDirectoryRecognitionResult::AppendL(CRecognitionResult* aEntry)
+	{
+	if(iDataTypeFilter)
+		{
+		if(aEntry->DataType().Match(*iDataTypeFilter) == KErrNotFound)
+			{
+			aEntry->Close(); //if we don't take ownership we must decrease reference count
+			return;
+			}
+		}
+
+	iEntries.AppendL(aEntry);
+	iRequiredBufferSize += aEntry->GetRequiredBufferSize();
+	} //lint !e818: Pointer parameter could be declared as pointing to const
+
+void CDirectoryRecognitionResult::WriteToStreamL(RWriteStream& aWriteStream)
+	{
+	aWriteStream.WriteUint32L(iEntries.Count());
+	for (TInt i=0; i < iEntries.Count(); i++)
+		iEntries[i]->WriteToStreamL(aWriteStream);
+		
+	aWriteStream.CommitL();
+	}
+
+//
+// CFileRecognitionUtility
+//
+
+CFileRecognitionUtility::CFileRecognitionUtility(CApaAppArcServer& aServer, TInt aMaxBufSize, RFs& aFs)
+	: CActive(0), 
+	  iServer(aServer), 
+	  iMaxBufSize(aMaxBufSize), 
+	  iFs(aFs),
+	  iIndex(0),
+	  iStep(0)
+	{
+	CActiveScheduler::Add(this);
+	}
+
+CFileRecognitionUtility::~CFileRecognitionUtility()
+	{
+	Cancel();
+	delete iEntryList;
+	
+	iPath = NULL;
+	iResult = NULL;
+	}
+
+void CFileRecognitionUtility::RecognizeSynchronouslyL(CDirectoryRecognitionResult& aResult)
+	{
+	iPath = &(aResult.Path());
+	iResult = &aResult;
+
+	User::LeaveIfError(iFs.IsValidName(iPath->Des()));
+
+	ReadDirectoryL();
+
+	// recognize files and calculate size of buffer
+	for(iIndex=0;iIndex<iEntryList->Count();iIndex++)
+		RecognizeFileL();
+		
+	delete iEntryList;
+	iEntryList = NULL;
+	}
+
+void CFileRecognitionUtility::RecognizeAsynchronously(CDirectoryRecognitionResult& aResult, const RMessage2& aMessage)
+	{
+	iIndex = 0;
+	iStep = 0;
+	iPath = &(aResult.Path());
+	iResult = &aResult;
+	iMessage = aMessage;
+
+	NextStep();
+	}
+
+void CFileRecognitionUtility::ReadDirectoryL()
+	{
+	delete iEntryList;
+	iEntryList = NULL;
+
+	// read directory content
+	User::LeaveIfError(iFs.GetDir(iPath->Des(),KEntryAttNormal,EDirsAnyOrder,iEntryList));
+	}
+	
+TInt CFileRecognitionUtility::BufferSizeL() const
+	{
+	const TInt preferredBufferSize = iServer.DataRecognizerPreferredBufSizeL();
+	TInt bufSize = Min(preferredBufferSize,iMaxBufSize);
+	if (bufSize < 1)
+		bufSize = 8; // sensible minimum.
+
+	return bufSize;
+	}
+
+void CFileRecognitionUtility::RecognizeFileL()
+	{
+	TFileName fullFileName(*iPath);
+	fullFileName.Append((*iEntryList)[iIndex].iName);
+	RFile file;
+	User::LeaveIfError(file.Open(iFs, fullFileName, EFileRead | EFileShareReadersOnly));
+	CleanupClosePushL(file);
+	
+	CRecognitionResult* result = NULL;
+	TRAP_IGNORE(result = iServer.RecognizeDataAsCRecognitionResultL(file, BufferSizeL()));
+	if(result)
+		{
+		CleanupClosePushL(*result);
+		iResult->AppendL(result);
+		CleanupStack::Pop(result);
+		}
+	
+	CleanupStack::PopAndDestroy(&file);
+	}
+
+void CFileRecognitionUtility::CancelRecognitionRequest()
+	{
+	if(iStep <= 1)
+		{
+		Cancel();
+		iMessage.Complete(KErrCancel);	
+		}
+	}
+
+void CFileRecognitionUtility::NextStep()
+	{
+	TRequestStatus* pStatus = &iStatus;
+	User::RequestComplete(pStatus, KErrNone);
+	SetActive();
+	}
+
+void CFileRecognitionUtility::RunL()
+	{
+	switch(iStep)
+		{
+		case 0:		// first step: read the directory content
+			ReadDirectoryL();
+			iIndex=0;
+			iStep++;
+			NextStep();
+			break;
+		case 1:		// read current file and recognize it
+			if(iIndex < iEntryList->Count())
+				{
+				RecognizeFileL();
+				iIndex++;
+				NextStep();
+				}
+			else	// finished
+				{
+				iMessage.WriteL(1,TPckgBuf<TUint>(iResult->RequiredBufferSize()));
+				iMessage.Complete(KErrNone);
+				iStep++;	// to show that we have completed the request
+				delete iEntryList;
+				iEntryList = NULL;
+				}
+			break;
+		default:
+			break;
+		}
+	}
+
+void CFileRecognitionUtility::DoCancel()
+	{
+	iIndex = 0;
+	iStep = 0;
+	}
+