MVCFramework Custom logg Linux

[borni69 1]

Hi ,

 

I am trying to make a custom logg work in Linux , but it make the ISAPI stop running 

 

It works great in windows.

 

I have this CustomLoggerConfigU.pas

unit CustomLoggerConfigU;

interface
uses
  LoggerPro; // loggerpro core
function GetLogger: ILogWriter;
implementation
uses
  System.IOUtils
    , LoggerPro.FileAppender // loggerpro file appender (logs to file)
  {$IFDEF MSWINDOWS} , LoggerPro.OutputdebugStringAppender {$ENDIF} // loggerpro outputdebugstring appender (logs to the debugger)
    ;
function GetLogger: ILogWriter;
begin
  Result := BuildLogWriter([
   {$IFDEF MSWINDOWS}  TLoggerProFileAppender.Create(10, 1000, 'C:\hseqsetting\logs')  {$ENDIF}
   {$IFDEF LINUX}  TLoggerProFileAppender.Create(10, 1000, '/etc/hseq/logs')  {$ENDIF}
    ], nil,TLogType.info);

end;
end.

 

and in my webmodule i have added  MVCFramework.Logger to uses

 

and use the following code to trigger SetDefaultLogger

 

........

procedure TMyWebModule.WebModuleDestroy(Sender: TObject);
begin
  FMVC.Free;
end;

initialization
 DataModuleDict:= TDataModuleDict.Create(nil);
 DataModuleDict.initDict;
 SetDefaultLogger(GetLogger);

finalization
 DataModuleDict.Free;

end.

 

System run ok if I remove SetDefaultLogger(GetLogger); , but if it is present i get this line in terminal, but after it hang

root@5e5f9a598ac5:/etc/hseq/logs# cat libmod_hseq2.00.dmvcframework.log 
2022-03-22 18:57:54:100  [TID 274930554752][INFO    ] Custom Logger initialized [dmvcframework]
root@5e5f9a598ac5:/etc/hseq/logs# 

 

So its initialized but then hole system hang...  not able to run before i comment out line below

//SetDefaultLogger(GetLogger);

 

Is this not the correct way to do this on Linux  ?

 

thanks in advance

 

 

 

 

 

[borni69 1]

The problem was access

 

in my docker file I added the file libmod_hseq2.00.dmvcframework.log   and 

chmod 0777 libmod_hseq2.00.dmvcframework.log

 

then it works

 

so now it seems to log fine to this file 

/var/log/hseq/libmod_hseq2.00.dmvcframework.log

 

 

But I got a new problem I would like to send this file to  "stdout"

 

Tried using this command

RUN ln -sf /dev/stdout /var/log/hseq/libmod_hseq2.00.dmvcframework.log

 

It gives me no error but no logging is showing  using  docker logs <dockername>

 

I did find something about it maybe not working because it's not in PID1?

 

Any idea

Edited March 25, 2022 by borni69

[borni69 1]

I will also have a look at Restappender, maybe it is a better solution for me...

Edited March 24, 2022 by borni69

[borni69 1]

Also if someone needs it later I added the logger in the create part of TMVCEngine

 

procedure TMyWebModule.WebModuleCreate(Sender: TObject);
begin
  FMVC := TMVCEngine.Create(Self,
    procedure(Config: TMVCConfig)
    begin
      // session timeout (0 means session cookie)
      Config[TMVCConfigKey.SessionTimeout] := '0';
      // default content-type
      Config[TMVCConfigKey.DefaultContentType] := TMVCConstants.DEFAULT_CONTENT_TYPE;
      // default content charset
      Config[TMVCConfigKey.DefaultContentCharset] := TMVCConstants.DEFAULT_CONTENT_CHARSET;
      // unhandled actions are permitted?
      Config[TMVCConfigKey.AllowUnhandledAction] := 'false';
      // default view file extension
      Config[TMVCConfigKey.DefaultViewFileExtension] := 'html';
      // view path
      Config[TMVCConfigKey.ViewPath] := 'templates';
      // Enable Server Signature in response
      Config[TMVCConfigKey.ExposeServerSignature] := 'true';
    end,GetLogger); //GetLogger      // Added the logger at this stage
  FMVC.AddController(TMyController);

 

[Daniele Teti 27]

On 3/25/2022 at 9:17 AM, borni69 said:

> Also if someone needs it later I added the logger in the create part of TMVCEngine

Can you fill an issue about this? Also did you tried the setcustomlogger? Are you sure the problem is the instant where the logger is created?

 

Edited March 28, 2022 by Daniele Teti

[borni69 1]

2 hours ago, Daniele Teti said:

Can you fill an issue about this? Also did you tried the setcustomlogger? Are you sure the problem is the instant where the logger is created?

 

In the create   

FMVC := TMVCEngine.Create

I send in a custom logger like below  GetLogger

 

 end,GetLogger); //GetLogger      // Added the logger at this stage

unit CustomLoggerConfigU;

interface
uses
  LoggerPro; // loggerpro core
function GetLogger: ILogWriter;
implementation
uses
  System.IOUtils
    , LoggerPro.FileAppender ;
function GetLogger: ILogWriter;
begin
  Result := BuildLogWriter([
   {$IFDEF MSWINDOWS}  TLoggerProFileAppender.Create ( 10, 1000 , 'C:\hseqsetting\logs' )  {$ENDIF}
   {$IFDEF LINUX}  TLoggerProFileAppender.Create     ( 10, 1000 , '/etc/hseq/logs'      )  {$ENDIF}
    ], nil,TLogType.Info);

end;
end.

 

 

is this above what you mean with setcustomlogger ?

 

This is an ISAPI app .so for Linux Apache.

 

It was not able to create the file in the location I set in    GetLogger

 

 

But if I added a file manually and  set chmod 0777 libmod_hseq2.00.dmvcframework.log   

to the file, it worked.

 

But after the file logging worked, I was not able to use  /dev/stdout

My plan was to send the log to AWS cloud watch together with the apache log.

 

So I have for now instead created a custom logger for MYSQL.

 

I can of course be my little knowledge of the framework, and this is not an issue,

but I was not able to find any examples for ISAPI Linux using log, and based on my reading I could not make it work.

 

Do you still think I  should make it an issue?  

 

Also the linux docker is Ubuntu 18.04

 

  

Edited March 28, 2022 by borni69