mmfenh/progressivedownload/ProgressiveDownloadSource/src/fileaccess.cpp
changeset 0 71ca22bcf22a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmfenh/progressivedownload/ProgressiveDownloadSource/src/fileaccess.cpp	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,331 @@
+/*
+* Copyright (c) 2004 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:  Progressive Download Utility
+*
+*/
+
+#include <f32file.h>
+#include <e32std.h>
+#include <caf/attribute.h>
+#include <caf/bitset.h>
+#include <caf/content.h>
+#include <caf/data.h>
+using namespace ContentAccess;
+#include <f32file.h>
+
+#include "FileAccess.h"
+
+CF32File::~CF32File()
+	{
+	if (!iFileHandle)
+		iFile.Close();
+	delete iFilePath;
+	}
+
+CF32File* CF32File::NewL(RFs& aSession, TDesC& aFilePath, TUint aMode)
+	{
+	CF32File* self = new (ELeave) CF32File;
+	CleanupStack::PushL(self);
+	self->ConstructL(aSession, aFilePath, aMode);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+
+void CF32File::ConstructL(RFs& aSession, TDesC& aPath, TUint aFileMode)
+	{
+	iSession = &aSession;
+	iFilePath = aPath.AllocL();
+	TUint attributes = 0;
+	TInt err = iSession->Att(*iFilePath, attributes);
+	if (err == KErrNone)
+		{
+		if ( attributes & KEntryAttReadOnly )
+			User::LeaveIfError(iFile.Open(*iSession, *iFilePath, EFileShareAny )) ;
+		else //if ( !( attributes & KEntryAttReadOnly ) )
+			User::LeaveIfError(iFile.Open(*iSession, *iFilePath, EFileShareAny)) ;
+		}
+	else if ((err == KErrNotFound) && (aFileMode & EFileWrite))
+		{
+		User::LeaveIfError(iFile.Create(*iSession, *iFilePath, EFileShareAny )) ;
+		}
+	else
+		{
+		User::Leave(err);
+		}
+	}
+
+
+RFile& CF32File::FileL()
+	{
+	return iFile;
+	}
+
+TInt CF32File::Seek(TSeek aSeekMode, TInt aPos)
+	{
+	return iFile.Seek(aSeekMode, aPos);
+	}
+
+TInt CF32File::Read(TDes8& aDes,TInt aLength)
+	{
+	return iFile.Read(aDes, aLength);
+	}
+
+void CF32File::Read(TDes8& aDes, TInt aLength, TRequestStatus& aStatus)
+	{
+	iFile.Read(aDes, aLength, aStatus);
+	}
+
+TInt CF32File::Write(const TDesC8& aDes,TInt aLength)
+	{
+	return iFile.Write(aDes, aLength);
+	}
+
+void CF32File::Write(const TDesC8& aDes, TInt aLength, TRequestStatus& aStatus)
+	{
+	iFile.Write(aDes, aLength, aStatus);
+	}
+
+TInt CF32File::Size(TInt& aSize)
+	{
+    #if _DEBUG
+	  RDebug::Print(_L("[%x]CF32File::Size to %d\n"),this,aSize);
+    #endif
+
+	return iFile.Size(aSize);
+	}
+
+TInt CF32File::SetSize(TInt aSize)
+	{
+	#if _DEBUG
+	  RDebug::Print(_L("[%x]CF32File::SetSize to %d\n"),this,aSize);
+    #endif
+
+
+	TInt err =  iFile.SetSize(aSize);
+	if(err == KErrNone)
+		iFileSize = aSize;
+	else
+		iFileSize = -1;
+
+	return err;
+	}
+
+TInt CF32File::EvaluateIntent(TIntent /*aIntent*/) const
+	{
+	return KErrNone;
+	}
+
+
+TInt CF32File::ExecuteIntent(TIntent /*aIntent*/)
+	{
+	return KErrNone;
+	}
+
+TBool CF32File::IsProtected() const
+	{
+	return EFalse;
+	}
+
+
+TInt CF32File::SetAgentProperty(TAgentProperty /*aProperty*/, TInt /*aValue*/)
+	{
+	// not an error to set this if not supported, just wont do anything
+	return KErrNone;
+	}
+
+
+CContentFile::~CContentFile()
+	{
+	delete iData;
+	delete iContent;
+
+	if (iLegacyFileOpen)
+		iLegacyFile.Close();
+	delete iFilePath;
+	}
+
+
+
+CContentFile* CContentFile::NewL(RFs& aSession, const TDesC& aFilePath, const TDesC& aUniqueId, TUint aMode)
+	{
+	CContentFile* self = new (ELeave) CContentFile;
+	CleanupStack::PushL(self);
+	self->ConstructL(aSession, aFilePath, aUniqueId, aMode);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+void CContentFile::ConstructL(RFs& aSession, const TDesC& aPath, const TDesC& aUniqueId, TUint /*aMode*/)
+	{
+	iSession = &aSession;
+	iFilePath = aPath.AllocL();
+
+	iContent = CContent::NewL(*iFilePath,EContentShareReadWrite);
+	if (aUniqueId.Length()>0)
+		{
+		iData = iContent->OpenContentL(EPeek, aUniqueId);//rj need mode for this one.
+		}
+	else
+		{
+		iData = iContent->OpenContentL(EPeek,EContentShareReadWrite);
+		}
+	}
+
+CContentFile* CContentFile::NewL(RFs& aSession, const TDesC& aFilePath, TUint aMode)
+	{
+	CContentFile* self = new (ELeave) CContentFile;
+	CleanupStack::PushL(self);
+	self->ConstructL(aSession, aFilePath, aMode);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+void CContentFile::ConstructL(RFs& aSession, const TDesC& aPath, TUint /*aMode*/)
+	{
+	iSession = &aSession;
+	iFilePath = aPath.AllocL();
+
+	iContent = CContent::NewL(*iFilePath, EContentShareReadWrite) ;
+	iData = iContent->OpenContentL(EPeek,EContentShareReadWrite);
+	}
+
+
+
+
+
+TInt CContentFile::EvaluateIntent(TIntent aIntent) const
+	{
+	ASSERT(iData);
+	return iData->EvaluateIntent(aIntent);
+	}
+
+
+TInt CContentFile::ExecuteIntent(TIntent aIntent)
+	{
+	ASSERT(iData);
+	return iData->ExecuteIntent(aIntent);
+	}
+
+TBool CContentFile::IsProtected() const
+	{
+	ASSERT(iContent && iData);
+	TInt value = 0;
+	TInt err =iData->GetAttribute(EIsProtected, value);
+	return (err == KErrNone && value);
+	}
+
+
+TInt CContentFile::SetAgentProperty(ContentAccess::TAgentProperty aProperty, TInt aValue)
+	{
+	ASSERT(iContent);
+	return iContent->SetProperty(aProperty, aValue);
+	}
+
+
+TInt CContentFile::Seek(TSeek aSeekMode, TInt aPos)
+	{
+	ASSERT(iData);
+	return iData->Seek(aSeekMode, aPos);
+	}
+
+TInt CContentFile::Read(TDes8& aDes,TInt aLength)
+	{
+	ASSERT(iData);
+	return iData->Read(aDes,aLength);
+	}
+
+void CContentFile::Read(TDes8& aDes, TInt aLength, TRequestStatus& aStatus)
+	{
+	ASSERT(iData);
+	iData->Read(aDes, aLength, aStatus);
+	}
+
+TInt CContentFile::Write(const TDesC8& /*aDes*/,TInt /*aLength*/)
+	{
+	return KErrAccessDenied;
+	}
+void CContentFile::Write(const TDesC8& /*aDes*/, TInt /*aLength*/, TRequestStatus& aStatus)
+	{
+	TRequestStatus* status = &aStatus;
+	User::RequestComplete(status, KErrAccessDenied);
+	}
+
+TInt CContentFile::SetSize(TInt /*aSize*/)
+	{
+	// Only a source is implemented, hence this cannot be allowed
+	return KErrAccessDenied;
+	}
+
+
+// Get the size of file
+// this method opens a new, read-only, RFile the first time this method is called
+
+TInt CContentFile::Size(TInt& aSize)
+	{
+	ASSERT(iData);
+	TRAPD(err, iData->DataSizeL(aSize));
+	return err;
+	}
+
+/**
+ * return a RFile for the legacy RFile method
+ * this method opens a new, read-only, RFile the first time this method is called
+ * @internalTechnology
+ * @return Reference to RFile handle to current file
+ */
+RFile& CContentFile::FileL()
+	{
+	if (!iLegacyFileOpen)
+		{
+		User::LeaveIfError(iLegacyFile.Open(*iSession, *iFilePath, EFileRead | EFileStream | EFileShareAny));
+		iLegacyFileOpen = ETrue;
+		}
+	return iLegacyFile;
+	}
+
+
+CF32File* CF32File::NewL(RFile& aFile)
+	{
+	CF32File* self = new (ELeave) CF32File;
+	CleanupStack::PushL(self);
+	self->ConstructL(aFile);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+void CF32File::ConstructL(RFile& aFile)
+	{
+	iFile = aFile;
+	iFileHandle = ETrue;
+	}
+
+CContentFile* CContentFile::NewL(RFile& aFile, const TDesC& aUniqueId)
+	{
+	CContentFile* self = new (ELeave) CContentFile;
+	CleanupStack::PushL(self);
+	self->ConstructL(aFile, aUniqueId);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+void CContentFile::ConstructL(RFile& aFile, const TDesC& aUniqueId)
+	{
+	iContent = CContent::NewL(aFile) ;
+	if (aUniqueId.Length()>0)
+		iData = iContent->OpenContentL(EPeek, aUniqueId); //need mode
+	else
+		iData = iContent->OpenContentL(EPeek, aUniqueId);
+	}
+