Pascal (Lazarus/Delphi)

Split File into Chunks

Demonstrates how to split a file into chunks. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.FileAccess;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  fac: TFileAccess;
  fileToSplit: string;
  partPrefix: string;
  partExtension: string;
  maxChunkSize: Integer;
  destDirPath: string;

begin
  success := False;

  fac := TFileAccess.Create;

  //  Any type of file may be split.  It doesn't matter if it's
  //  a binary file or a text file.
  fileToSplit := 'qa_data/hamlet.xml';

  partPrefix := 'hamlet';
  partExtension := 'part';
  maxChunkSize := 50000;
  destDirPath := 'qa_output';

  //  Splits hamlet.xml into hamlet1.part, hamlet2.part, ...
  //  Output files are written to the current working directory.
  //  Each chunk will be 50000 bytes except for the last which
  //  will be the remainder.
  success := fac.SplitFile(fileToSplit,partPrefix,partExtension,maxChunkSize,destDirPath);

  if (success = True) then
    begin
      WriteLn('Success.');
    end
  else
    begin
      WriteLn(fac.LastErrorText);
    end;


  fac.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.