[VB.NET] Logging méthode Trace
Bonjour,
Voila je dois créer une classe EntJournal avec une méthode Trace qui prend mon exception EntException (que j'ai créer avant )
Je dois réaliser un constructeur qui definira le type de journalisation qui seront dans l'app.config avec les clés suivantes:
Citation:
<add key = "EntJournal" value= "JournalType= windows;Name=MonAppli"/>
et
Citation:
<add key = "EntJournal" value= "JournalType=Log;Name=MonAppli";Folder=c:/test;SaveUpTo= 30/>
Dans ces journaux je dois mettre les exceptions de mon appli. pour le fichier log il est sous la forme yyyyMMdd_HHmmss_monappli.log et je dois en conserver que 30 .
Voila le code que j'ai écrit :
Code:
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Public Class EntJournal
Sub New()
Dim reponse As String = ""
reponse = ConfigurationManager.AppSettings.Get("EntJournal")
If reponse.Contains("JournalType=Windows") Then
Dim NomExe As String = ""
NomExe = Application.ExecutablePath
Dim nomAppli
nomAppli = reponse.Replace("JournalType=Windows;Name=", "")
EventLog.CreateEventSource(NomExe, nomAppli)
ElseIf reponse.Contains("JournalType=Log") Then
Dim nomApplitempo As String = reponse.Replace("JournalType=Log;Name=", "")
nomApplitempo.Split(";")
Dim nomAppli As String = nomApplitempo(0)
Dim folderTargetTempo As String = nomApplitempo(1)
Dim folder As String = folderTargetTempo.Replace("Folder=", "")
Dim saveupTemporaire As String = ""
saveupTemporaire = nomApplitempo(2)
Dim nbLog As Integer = CType(saveupTemporaire.Replace("SaveUpTo=", ""), Integer)
If System.IO.Directory.Exists(folder) = False Then
System.IO.Directory.CreateDirectory(folder)
End If
Dim dateLog As String = TextWriter.Instance.nomDufichier(nomAppli)
Dim objStream As FileStream = New FileStream(folder & dateLog & nomAppli & ".log", FileMode.OpenOrCreate)
objStream.Close()
listeFichierLog(folder, nbLog)
End If
End Sub
Public Sub TraceLine(ByVal ExceptionEnt As EntException)
' /////////////// Pour écrire dans le fichier log ////////////////'
Dim reponse As String = ""
reponse = ConfigurationManager.AppSettings.Get("EntJournal")
Dim nomApplitempo As String = reponse.Replace("JournalType=Log;Name=", "")
nomApplitempo.Split(";")
Dim nomAppli As String = nomApplitempo(0)
Dim folderTargetTempo As String = nomApplitempo(1)
Dim folder As String = folderTargetTempo.Replace("Folder=", "")
Dim saveupTemporaire As String = ""
saveupTemporaire = nomApplitempo(2)
Dim nbLog As Integer = CType(saveupTemporaire.Replace("SaveUpTo=", ""), Integer)
If System.IO.Directory.Exists(folder) = False Then
System.IO.Directory.CreateDirectory(folder)
End If
Dim DateLog As String = TextWriter.Instance.nomDufichier(nomAppli)
Dim objStream As FileStream = New FileStream(folder & DateLog & nomAppli & ".log", FileMode.OpenOrCreate)
Dim objTraceListener As TextWriterTraceListener = New TextWriterTraceListener(objStream)
Trace.Listeners.Add(objTraceListener)
Dim ligneAEcrire As String = ""
ligneAEcrire = DateLog & "Nouvelle exception de type" & (ExceptionEnt.TYPE.ToString) & ".Code numéro : " & ExceptionEnt.CODE & " . " & ExceptionEnt.InnerException.Message & ":" & ExceptionEnt.Message
Trace.WriteLine(ligneAEcrire)
Trace.AutoFlush = True
objStream.Close()
' /////////////// Pour écrire dans le journal windows ////////////////'
Dim objListener As EventLogTraceListener = New EventLogTraceListener
Dim objLog As EventLog = New EventLog(Date.Now & "Nouvelle exception de type" & (ExceptionEnt.TYPE.ToString) & ".Code numéro : " & ExceptionEnt.CODE & " . " & ExceptionEnt.InnerException.Message & ":" & ExceptionEnt.Message)
objListener.EventLog = objLog
End Sub
Private Sub listeFichierLog(ByVal folder As String, ByVal nbfichier As Integer)
Dim sortie() As String
sortie = System.IO.Directory.GetFiles(folder)
If sortie.Count >= nbfichier Then
Dim fichierASupprimer As String = sortie(30)
File.Delete(fichierASupprimer)
End If
End Sub
End Class
Imports System.Globalization
Public Class TextWriter
Inherits TextWriterTraceListener
Private Shared s_Instance As TextWriter
Private Shared s_InstanceLocker As Object = New Object
Public Shared ReadOnly Property Instance() As TextWriter
Get
SyncLock s_InstanceLocker
If (s_Instance Is Nothing) Then
s_Instance = New TextWriter
End If
End SyncLock
Return s_Instance
End Get
End Property
Public Function nomDufichier(ByVal nomAppli As String) As String
Dim dateLog As String = ""
dateLog = Date.Now.ToString("yyyyMMdd_HHmmss_")
Return dateLog
End Function
End Class |
Qu'en pensez vous ?
cordialement,
Kévin
