Nécromancie.
En général, je crée simplement une classe, que je peux envelopper autour de main dans un IDisposable.
Ainsi, je peux enregistrer la sortie de la console dans un fichier sans modifier le reste du code.
De cette façon, j'ai la sortie à la fois dans la console et pour référence ultérieure dans un fichier texte.
public class Program
{
public static async System.Threading.Tasks.Task Main(string[] args)
{
using (ConsoleOutputMultiplexer co = new ConsoleOutputMultiplexer())
{
// Do something here
System.Console.WriteLine("Hello Logfile and Console 1 !");
System.Console.WriteLine("Hello Logfile and Console 2 !");
System.Console.WriteLine("Hello Logfile and Console 3 !");
} // End Using co
System.Console.WriteLine(" --- Press any key to continue --- ");
System.Console.ReadKey();
await System.Threading.Tasks.Task.CompletedTask;
} // End Task Main
}
avec
public class MultiTextWriter
: System.IO.TextWriter
{
protected System.Text.Encoding m_encoding;
protected System.Collections.Generic.IEnumerable<System.IO.TextWriter> m_writers;
public override System.Text.Encoding Encoding => this.m_encoding;
public override System.IFormatProvider FormatProvider
{
get
{
return base.FormatProvider;
}
}
public MultiTextWriter(System.Collections.Generic.IEnumerable<System.IO.TextWriter> textWriters, System.Text.Encoding encoding)
{
this.m_writers = textWriters;
this.m_encoding = encoding;
}
public MultiTextWriter(System.Collections.Generic.IEnumerable<System.IO.TextWriter> textWriters)
: this(textWriters, textWriters.GetEnumerator().Current.Encoding)
{ }
public MultiTextWriter(System.Text.Encoding enc, params System.IO.TextWriter[] textWriters)
: this((System.Collections.Generic.IEnumerable<System.IO.TextWriter>)textWriters, enc)
{ }
public MultiTextWriter(params System.IO.TextWriter[] textWriters)
: this((System.Collections.Generic.IEnumerable<System.IO.TextWriter>)textWriters)
{ }
public override void Flush()
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
thisWriter.Flush();
}
}
public async override System.Threading.Tasks.Task FlushAsync()
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
await thisWriter.FlushAsync();
}
await System.Threading.Tasks.Task.CompletedTask;
}
public override void Write(char[] buffer, int index, int count)
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
thisWriter.Write(buffer, index, count);
}
}
public override void Write(System.ReadOnlySpan<char> buffer)
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
thisWriter.Write(buffer);
}
}
public async override System.Threading.Tasks.Task WriteAsync(char[] buffer, int index, int count)
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
await thisWriter.WriteAsync(buffer, index, count);
}
await System.Threading.Tasks.Task.CompletedTask;
}
public async override System.Threading.Tasks.Task WriteAsync(System.ReadOnlyMemory<char> buffer, System.Threading.CancellationToken cancellationToken = default)
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
await thisWriter.WriteAsync(buffer, cancellationToken);
}
await System.Threading.Tasks.Task.CompletedTask;
}
protected override void Dispose(bool disposing)
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
thisWriter.Dispose();
}
}
public async override System.Threading.Tasks.ValueTask DisposeAsync()
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
await thisWriter.DisposeAsync();
}
await System.Threading.Tasks.Task.CompletedTask;
}
public override void Close()
{
foreach (System.IO.TextWriter thisWriter in this.m_writers)
{
thisWriter.Close();
}
} // End Sub Close
} // End Class MultiTextWriter
public class ConsoleOutputMultiplexer
: System.IDisposable
{
protected System.IO.TextWriter m_oldOut;
protected System.IO.FileStream m_logStream;
protected System.IO.StreamWriter m_logWriter;
protected MultiTextWriter m_multiPlexer;
public ConsoleOutputMultiplexer()
{
this.m_oldOut = System.Console.Out;
try
{
this.m_logStream = new System.IO.FileStream("./Redirect.txt", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
this.m_logWriter = new System.IO.StreamWriter(this.m_logStream);
this.m_multiPlexer = new MultiTextWriter(this.m_oldOut.Encoding, this.m_oldOut, this.m_logWriter);
System.Console.SetOut(this.m_multiPlexer);
}
catch (System.Exception e)
{
System.Console.WriteLine("Cannot open Redirect.txt for writing");
System.Console.WriteLine(e.Message);
return;
}
} // End Constructor
void System.IDisposable.Dispose()
{
System.Console.SetOut(this.m_oldOut);
if (this.m_multiPlexer != null)
{
this.m_multiPlexer.Flush();
if (this.m_logStream != null)
this.m_logStream.Flush();
this.m_multiPlexer.Close();
}
if(this.m_logStream != null)
this.m_logStream.Close();
} // End Sub Dispose
} // End Class ConsoleOutputMultiplexer
0 votes
Duplicata possible de Mise en miroir de la sortie de la console vers un fichier