The properties you are using to create the logfile name, are these being
generated by log4net? If they are, I dont think you are going to succeed, the
logfile needs to be created prior to logging commencing. The properties you
seem to be supplying wont exist at the point the you are trying to write the
file.
Also, is the .config file the best place to be doing this? Why not simply
create a file in the code if you really need to do this? I can understand why
you would want to dynamically name a log file, but the way you are going about
it probably isnt the best method.
Subject: How do I use dynamic boolean values on RollingFileAppender
Date: Fri, 5 Jun 2009 10:01:18 -0500
From: rfo...@we-are-it.com
To: log4net-user@logging.apache.org; log4net-...@logging.apache.org
I have ran into a "small" brick wall. Hoping that I can find a couple of
log4net guru's here. My situation.
In trying to make my logging as configurable as possible in my application, I
have been tinkering with trying to set the boolean values for appendToFile and
staticLogFileName as dynamic values. These have a default value (currently
stored in the My.Settings metadata). My problem is that when I go to configure
the values at runtime I get this error in my stack trace:
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [SyncLogFile]
of type [log4net.Appender.RollingFileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [SyncLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [ErrLogFile]
of type [log4net.Appender.FileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [ErrLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [SyncLogFile]
of type [log4net.Appender.RollingFileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [SyncLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [ErrLogFile]
of type [log4net.Appender.FileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [ErrLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [SyncLogFile]
of type [log4net.Appender.RollingFileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [SyncLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [ErrLogFile]
of type [log4net.Appender.FileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [ErrLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [SyncLogFile]
of type [log4net.Appender.RollingFileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [SyncLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [ErrLogFile]
of type [log4net.Appender.FileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [ErrLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [SyncLogFile]
of type [log4net.Appender.RollingFileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [SyncLogFile] not found.
log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [ErrLogFile]
of type [log4net.Appender.FileAppender]. Reported error follows.
System.FormatException: String was not recognized as a valid Boolean.
at System.Boolean.Parse(String value)
at log4net.Util.TypeConverters.BooleanConverter.ConvertFrom(Object source)
at log4net.Util.OptionConverter.ConvertStringTo(Type target, String txt)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ConvertStringTo(Type
type, String value)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElement
element, Object target)
at
log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement
appenderElement)
log4net:ERROR XmlHierarchyConfigurator: Appender named [ErrLogFile] not found.
The way that I am configuring the values is by trying to use the code displayed
here:
'In Main Private Shared Log As ILog Private Sub
frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles MyBase.Load '[...] primeLogging()
configLog4Net() Log =
LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType)
Log.Info("This is the start of the application.") End
Sub Private Sub primeLogging() If Not
My.Settings.LogPath = "" Then _LogPath =
My.Settings.LogPath Else _LogPath =
My.Application.Info.DirectoryPath & "\Logs\" End If
'[...] _MaxRollBacks = My.Settings.MaxRollBacks
_MaxFileSize = My.Settings.MaxFileSize _isAppendToFile =
My.Settings.isAppendToFile _isStaticLogFile =
My.Settings.isStaticLogFile End Sub Private Sub
configLog4Net() log4net.GlobalContext.Properties("LogPath") =
_LogPath log4net.GlobalContext.Properties("LogName") = _LogName
log4net.GlobalContext.Properties("RollStyle") = _tempRollStyle
log4net.GlobalContext.Properties("MaxRollBacks") = _MaxRollBacks
log4net.GlobalContext.Properties("MaxFileSize") = _MaxFileSize
log4net.GlobalContext.Properties("isAppendToFile") =
_isAppendToFile
log4net.GlobalContext.Properties("isStaticLogFile") = _isStaticLogFile
'My attempts to cast as a boolean (did not work)
'log4net.Util.OptionConverter.ToBoolean(log4net.GlobalContext.Properties("isAppendToFile"),
_isAppendToFile)
'log4net.Util.OptionConverter.ToBoolean(log4net.GlobalContext.Properties("isStaticLogFile"),
_isStaticLogFile) End Sub 'In Log4Net.config (using a seperate
configuration file for Log4Net)<?xml version="1.0" encoding="utf-8"
?><configuration> <configSections> <section
name="log4net" type="System.Configuration.IgnoreSectionHandler" />
</configSections> <appSettings> <!-- To enable internal
log4net logging specify the following appSettings key --> <add
key="log4net.Internal.Debug" value="true"/> </appSettings> <!--
This section contains the log4net configuration settings --> <log4net>
<!-- Define some output appenders --> <appender
name="SyncLogFile" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString"
value="%property{LogPath}\Syncronizations\%property{LogName}" />
<param name="DatePattern" value=".yyyy-MM-dd-tt.log"/>
<appendToFile value="%property{isAppendToFile}" />
<maxSizeRollBackups type="log4net.Util.PatternString"
value="%property{MaxRollBacks}" /> <maximumFileSize
type="log4net.Util.PatternString" value="%property{MaxFileSize}" />
<rollingStyle type="log4net.Util.PatternString"
value="%property{RollStyle}" /> <staticLogFileName
value="%property{isStaticLogFile}" /> <layout
type="log4net.Layout.PatternLayout"> <header
type="log4net.Util.PatternString"
value="**************************************** Logging Started - %date
****************************************** " />
<footer type="log4net.Util.PatternString"
value="**************************************** Logging Ended - %date
****************************************** " />
<conversionPattern value="%date [%thread] %-5level %logger [%ndc] -
%message%newline" /> </layout>
</appender> <appender name="ErrLogFile"
type="log4net.Appender.FileAppender"> <file
type="log4net.Util.PatternString" value="%property{LogPath}\Errors\errLog.txt"
/> <sppendToFile value="%property{isAppendToFile}" />
<layout type="log4net.Layout.PatternLayout">
<header type="log4net.Util.PatternString"
value="**************************************** Logging Started - %date
****************************************** " />
<footer type="log4net.Util.PatternString"
value="**************************************** Logging Ended - %date
****************************************** " />
<conversionPattern value="%date [%thread] %-5level %logger [%ndc]
<%property{auth}> - %message%newline" />
</layout> </appender> <appender
name="ConsoleLog" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%ndc]
<%property{auth}> - %message%newline" />
</layout> </appender> <appender name="EventLog"
type="log4net.Appender.EventLogAppender"> <layout
type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%ndc]
<%property{auth}> - %message%newline" />
</layout> </appender> <!-- Setup the root
category, add the appenders and set the default level -->
<root> <level value="ALL" />
<appender-ref ref="SyncLogFile" /> <appender-ref
ref="ErrLogFile" /> <appender-ref ref="ConsoleLog" />
<appender-ref ref="EventLog" /> </root>
</log4net></configuration>
All of my other appenders work (ConsoleLog, EventLog and ErrLogFile (when I
remove the appendToFile paramter).
Please any assistance would be most appreciated.
Thanks,
-saige-
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