/*

* Copyright (c) 2000 - 2001 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 "cxml_file_if.h"

#include "nw_string_char.h"

//

//CXML_Read_From_File()

//

EXPORT_C

NW_Status_t CXML_Read_From_File(

				   NW_Byte* input_file,NW_Uint8** buffer, NW_Int32* bufferLen)

{

  RFile file;

  RFs aSession;

  TInt fileErr;

  CXML_Uint32 fileNameByteCnt;

  TInt fileNameLen; 

  NW_Status_t retVal =  NW_STAT_SUCCESS;

  TUint16* fileName;

  TInt i;

  TInt err = KErrNone;

  HBufC8*  inBuf;

  CXML_Uint8* bufPtr;

  TPtr8 inBufDes(NULL,0);

  if( (input_file == NULL) || (buffer == NULL) || (bufferLen == NULL) )

  {

	retVal = NW_STAT_FAILURE;

	return retVal;

  }

  *bufferLen = -1; //Default value

  err = aSession.Connect();

  if(KErrNone != err)

  {

	retVal = NW_STAT_FAILURE;

	return retVal;  	

  }

  fileNameLen = NW_String_charBuffGetLength(input_file,HTTP_us_ascii,&fileNameByteCnt);

  //This is required for TPtrC

  fileName = new TUint16[fileNameLen];

  if(fileName == NULL)

  {

   retVal = NW_STAT_OUT_OF_MEMORY;

   return retVal;

  }

  for(i=0; i < fileNameLen; i++)

  {

	  fileName[i] = input_file[i];

  }

  TPtrC inFileN(fileName,fileNameLen);

  fileErr = file.Open(aSession,inFileN,EFileRead);

  if ( fileErr != KErrNone )	

  {

    retVal = NW_STAT_FILE_NOT_OPEN; 

	delete[] fileName;

	return retVal;

  }

    TInt fileSize;

  //Get File Size

  fileErr = file.Size( fileSize );

  if(fileErr != KErrNone )	

  {

    retVal = NW_STAT_UNEXPECTED_ERROR;

	delete[] fileName;

	file.Close();

	return retVal;

  }

  *bufferLen = fileSize;

  // Allocate buffer to read the cXML FILE contents

   inBuf = HBufC8::New(fileSize);

   //Get the pointer to heap object

   inBufDes.Set(inBuf->Des()) ;

  if(inBuf)

  {

	  //Now read the file

      fileErr = file.Read(inBufDes);

     if(fileErr != KErrNone )	

	 {

      delete inBuf;  //TODO: Change to more meaningful error

	  delete[] fileName;

	  file.Close();

	  *bufferLen = -1;

	  retVal = NW_STAT_FILE_READ_ERROR;

	  return retVal;	

	 }

  }

  else

  {

	delete[] fileName;

	file.Close();

	*bufferLen = -1;

	retVal = NW_STAT_FAILURE;

	return retVal;

  }

  //Allocate the buffer and copy the contents to this

  *buffer = new CXML_Byte[fileSize];

  if(*buffer == NULL)

  {

   retVal = NW_STAT_OUT_OF_MEMORY;

   return retVal;

  }

  bufPtr = (CXML_Byte*) inBuf->Ptr(); //Get pointer to the data

   for(i=0; i < fileSize; i++)

	{

	  (*buffer)[i] = bufPtr[i];

	}

  delete inBuf;

  delete[] fileName;

  file.Close();

  aSession.Close();

  return retVal;

}//end CXMLTestParser::CXML_Read_From_File()