/*

* 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:  CJavaFile

*

*/

#include "logger.h"

#include "mjavafile.h"

#include "javafile.h"

using namespace javaruntime;

//*****************************************************************************

CJavaFile::CJavaFile(): iJavaFileMode(EJavaFileClosed)

{

    JELOG2(EJVM);

}

//*****************************************************************************

CJavaFile::~CJavaFile()

{

    JELOG2(EJVM);

    Close();

}

//*****************************************************************************

void CJavaFile::OpenCafL(const TDesC& aFileName)

{

    JELOG2(EJVM);

    if (NULL == iCafContent)

    {

        iCafContent = ContentAccess::CContent::NewL(aFileName);

    }

    iCafData = iCafContent->OpenContentL(ContentAccess::EPeek);

    User::LeaveIfError(iCafData->ExecuteIntent(ContentAccess::EPeek));

}

//*****************************************************************************

TInt CJavaFile::Open(RFs& aFs,const TDesC& aFileName, TUint aFileMode)

{

    JELOG2(EJVM);

    if (iJavaFileMode != EJavaFileClosed)

    {

        // Not allowed if some file is already opened and not properly closed.

        return KErrInUse;

    }

    mFileName.assign((wchar_t*)aFileName.Ptr(), aFileName.Length());

    TInt status;

    if (isDrmFile(aFileName))

    {

        LOG1(EJVM, EInfo,"Opening file %S using CAF", mFileName.c_str());

        iJavaFileMode = EJavaFileOpenForCaf; //This is set before opening

        //in order to allow proper

        //cleanup if something fails.

        TRAP(status, OpenCafL(aFileName));

    }

    else

    {

        // Using RFile

        LOG1(EJVM, EInfo,"Opening file %S using RFile", mFileName.c_str());

        status = iNormalFile.Open(aFs, aFileName, aFileMode);

        if (status == KErrNone)

        {

            iJavaFileMode = EJavaFileOpenForNormalFile;

        }

    }

    return status;

}

//*****************************************************************************

void CJavaFile::Close()

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        LOG1(EJVM, EInfo,"Closing file %S using CAF", mFileName.c_str());

        delete iCafData;

        iCafData = NULL;

        delete iCafContent;

        iCafContent = NULL;

    }

    if (iJavaFileMode == EJavaFileOpenForNormalFile)

    {

        LOG1(EJVM, EInfo,"Closing file %S using RFile", mFileName.c_str());

        iNormalFile.Close();

    }

    iJavaFileMode = EJavaFileClosed;

}

//*****************************************************************************

TInt CJavaFile::Size(TInt& aSize) const

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Using CAF

        TInt status = KErrNone;

        TRAP(status, iCafData->DataSizeL(aSize));

        return status;

    }

    else

    {

        //Using RFile

        return iNormalFile.Size(aSize);

    }

}

//*****************************************************************************

TInt CJavaFile::SetSize(TInt aSize)

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.SetSize(aSize);

    }

}

//*****************************************************************************

TInt CJavaFile::Create(RFs& aFs,const TDesC& aName,TUint aFileMode)

{

    JELOG2(EJVM);

    if (iJavaFileMode != EJavaFileClosed)

    {

        //Not allowed if some file is already opened and not properly closed.

        return KErrInUse;

    }

    //Using RFile

    TInt status = iNormalFile.Create(aFs, aName, aFileMode);

    if (status == KErrNone)

    {

        iJavaFileMode = EJavaFileOpenForNormalFile;

    }

    return status;

}

//*****************************************************************************

TInt CJavaFile::Read(TDes8& aDes) const

{

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Using CAF

        return iCafData->Read(aDes);

    }

    else

    {

        //Using RFile

        return iNormalFile.Read(aDes);

    }

}

//*****************************************************************************

TInt CJavaFile::Read(TDes8& aDes, TInt aLength) const

{

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Using CAF

        return iCafData->Read(aDes, aLength);

    }

    else

    {

        //Using RFile

        return iNormalFile.Read(aDes, aLength);

    }

}

//*****************************************************************************

TInt CJavaFile::Replace(RFs& aFs,const TDesC& aName,TUint aFileMode)

{

    JELOG2(EJVM);

    //Using RFile

    TInt status = iNormalFile.Replace(aFs, aName, aFileMode);

    if (status == KErrNone)

    {

        iJavaFileMode = EJavaFileOpenForNormalFile;

    }

    else

    {

        //Clean the environment just in case.

        Close();

    }

    return status;

}

//*****************************************************************************

TInt CJavaFile::Write(const TDesC8& aDes)

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.Write(aDes);

    }

}

//*****************************************************************************

TInt CJavaFile::Write(const TDesC8& aDes,TInt aLength)

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.Write(aDes, aLength);

    }

}

//*****************************************************************************

TInt CJavaFile::Write(TInt aPos,const TDesC8& aDes)

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.Write(aPos, aDes);

    }

}

//*****************************************************************************

TInt CJavaFile::Write(TInt aPos,const TDesC8& aDes,TInt aLength)

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.Write(aPos, aDes, aLength);

    }

}

//*****************************************************************************

TInt CJavaFile::Lock(TInt aPos, TInt aLength) const

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.Lock(aPos, aLength);

    }

}

//*****************************************************************************

TInt CJavaFile::UnLock(TInt aPos, TInt aLength) const

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.UnLock(aPos, aLength);

    }

}

//*****************************************************************************

TInt CJavaFile::Seek(TSeek aMode,TInt& aPos) const

{

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Using CAF

        return iCafData->Seek(aMode, aPos);

    }

    else

    {

        //Using RFile

        return iNormalFile.Seek(aMode, aPos);

    }

}

//*****************************************************************************

TInt CJavaFile::Flush()

{

    JELOG2(EJVM);

    if (iJavaFileMode == EJavaFileOpenForCaf)

    {

        //Not supported for files accessed via CAF.

        return KErrNotSupported;

    }

    else

    {

        //Using RFile

        return iNormalFile.Flush();

    }

}

//*****************************************************************************

TBool CJavaFile::isDrmFile(const TDesC& aFileName)

{

    TParse filename;

    filename.Set(aFileName, NULL, NULL);

    TPtrC filenameExt = filename.Ext();

    {

        // Filename extension indicates this is a DRM protected file.

        return ETrue;

    }

    {

        // Filename extension indicates this is not a jar file,

        // assume it is not DRM protected.

        return EFalse;

    }

    RProcess thisProcess;

    TName thisProcessName = thisProcess.Name();

    {

        // We are not running in JavaInstaller process,

        // do not check if file is DRM protected from CAF

        // but assume that file is not DRM protected.

        return EFalse;

    }

    // Check from CAF if file is DRM protected.

    TBool drmFile = EFalse;

    {

        {

        }

    }

    return drmFile;

}