www.pudn.com > indy10.0.52_source.rar > IdLogStream.pas

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{ $Log:  11655: IdLogStream.pas 
{ 
{   Rev 1.5    2004.05.20 12:34:32 PM  czhower 
{ Removed more non .NET compatible stream read and writes 
} 
{ 
{   Rev 1.4    2004.01.20 10:03:30 PM  czhower 
{ InitComponent 
} 
{ 
{   Rev 1.3    2003.10.17 6:15:56 PM  czhower 
{ Upgrades 
} 
{ 
{   Rev 1.2    2003.10.17 4:28:54 PM  czhower 
{ Changed stream names to be consistent with IOHandlerStream 
} 
{ 
{   Rev 1.1    2003.10.14 1:27:12 PM  czhower 
{ Uupdates + Intercept support 
} 
{ 
{   Rev 1.0    11/13/2002 07:56:18 AM  JPMugaas 
} 
unit IdLogStream; 
 
interface 
 
uses 
  Classes, 
  IdLogBase, IdStreamVCL; 
 
type 
  TIdLogStream = class(TIdLogBase) 
  protected 
    FFreeStreams: Boolean; 
    FReceiveStream: TIdStreamVCL; 
    FSendStream: TIdStreamVCL; 
    // 
    procedure InitComponent; override; 
    procedure LogStatus(AText: string); override; 
    procedure LogReceivedData(AText: string; AData: string); override; 
    procedure LogSentData(AText: string; AData: string); override; 
  public 
    procedure Disconnect; override; 
    // 
    property FreeStreams: Boolean read FFreeStreams write FFreeStreams; 
    property ReceiveStream: TIdStreamVCL read FReceiveStream write FReceiveStream; 
    property SendStream: TIdStreamVCL read FSendStream write FSendStream; 
  end; 
 
implementation 
 
uses 
  SysUtils; 
 
// TODO: This was orginally for VCL. For .Net what do we do? Convert back to 
// 7 bit? Log all? Logging all seems to be a disaster. 
// Text seems to be best, users are expecting text in this class. But 
// this write stream will dump unicode out in .net..... 
// So just convert it again back to 7 bit? How is proper to write 
// 7 bit to file? Use AnsiString? 
 
{ TIdLogStream } 
 
procedure TIdLogStream.Disconnect; 
begin 
  inherited; 
  if FreeStreams then begin 
    FreeAndNil(FReceiveStream); 
    FreeAndNil(FSendStream); 
  end; 
end; 
 
procedure TIdLogStream.InitComponent; 
begin 
  inherited; 
  FFreeStreams := True; 
end; 
 
procedure TIdLogStream.LogReceivedData(AText, AData: string); 
begin 
  if FReceiveStream <> nil then begin 
    FReceiveStream.Write(AData); 
  end; 
end; 
 
procedure TIdLogStream.LogSentData(AText, AData: string); 
begin 
  if FSendStream <> nil then begin 
    FSendStream.Write(AData); 
  end; 
end; 
 
procedure TIdLogStream.LogStatus(AText: string); 
begin 
  // We just leave this empty because the AText is not part of the stream and we 
  // do not want to raise an abstract method exception. 
end; 
 
end.