NLog 自定义 FileTarget
NLog custom FileTarget
我为 Sentinel 定制了 NLogViewerTarget (NLogViewerEx)，如下所示：
现在我也想为我的 FileTarget 设置格式化的消息，但是当我应用它时，它不再工作（记录）了。
<targets async="true">
<target
xsi:type="FileTargetEx"
name="file"
layout="${longdate} - ${level:uppercase=true}: ${message}${onexception:${newline}exception\: ${exception:format=tostring}}"
filename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}.log"
keepfileopen="false"
archivefilename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}_archive.{##}.zip"
archivenumbering="dateandsequence"
archiveevery="day"
maxarchivefiles="50"
archivedateformat="yyyy-mm-dd"
archiveoldfileonstartup="true"
createdirs="true"
enablearchivefilecompression="true"
encoding="utf-8"
header="############################################## ${appname} log ##############################################"
archiveabovesize="10485760"/>
<target xsi:type="NLogViewerEx"
name="sentinel"
address="udp://127.0.0.1:9999"/>
</targets>
我也尝试过自定义 FileTarget，但这也行不通。有人知道如何应用它吗？
[Target("FileTargetEx")]
internal class FileTargetEx : FileTarget
{
private readonly Log4JXmlEventLayoutEx _Layout = new Log4JXmlEventLayoutEx();
public override Layout Layout { get { return _Layout; } set { } }
}
我给了 File Target xsi:type FileTargetEx 和 xsi:type NLogViewerEx，但没有成功。如果我这样做，Sentinel 和 File 将不再记录！
调试
启用内部调试日志后，我得到以下日志：
2017-12-13 09:32:52.6572 Info Loading assembly: HtCore
2017-12-13 09:32:52.6834 Debug ScanAssembly('NLog, Version=5.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c')
2017-12-13 09:32:52.7356 Debug Start auto loading, location: D:\Repositories\gitlab.company\dotNet\HtCore\HtCore\TestConsole\bin\Debug
2017-12-13 09:32:52.7356 Debug Auto loading done
2017-12-13 09:32:52.7496 Debug ScanAssembly('HtCore, Version=1.4.0.8, Culture=neutral, PublicKeyToken=null')
2017-12-13 09:32:52.7797 Debug Setting 'UppercaseLayoutRendererWrapper.uppercase' to 'true'
2017-12-13 09:32:52.7797 Debug Setting 'FileTargetEx.name' to 'file'
2017-12-13 09:32:52.7978 Debug Setting 'FileTargetEx.filename' to '${specialfolder:folder=commonapplicationdata}/company gmbh/Testconsole/logs/Testconsole.log'
2017-12-13 09:32:52.7978 Debug Setting 'SpecialFolderLayoutRenderer.folder' to 'commonapplicationdata'
2017-12-13 09:32:52.8108 Debug Setting 'FileTargetEx.keepfileopen' to 'false'
2017-12-13 09:32:52.8108 Debug Setting 'FileTargetEx.archivefilename' to '${specialfolder:folder=commonapplicationdata}/company gmbh/Testconsole/logs/Testconsole_archive.{##}.zip'
2017-12-13 09:32:52.8108 Debug Setting 'SpecialFolderLayoutRenderer.folder' to 'commonapplicationdata'
2017-12-13 09:32:52.8278 Debug Setting 'FileTargetEx.archivenumbering' to 'dateandsequence'
2017-12-13 09:32:52.8278 Debug Setting 'FileTargetEx.archiveevery' to 'day'
2017-12-13 09:32:52.8429 Debug Setting 'FileTargetEx.maxarchivefiles' to '50'
2017-12-13 09:32:52.8429 Debug Setting 'FileTargetEx.archivedateformat' to 'yyyy-mm-dd'
2017-12-13 09:32:52.8429 Debug Setting 'FileTargetEx.archiveoldfileonstartup' to 'true'
2017-12-13 09:32:52.8634 Debug Setting 'FileTargetEx.createdirs' to 'true'
2017-12-13 09:32:52.8634 Debug Setting 'FileTargetEx.enablearchivefilecompression' to 'true'
2017-12-13 09:32:52.8758 Debug Setting 'FileTargetEx.encoding' to 'utf-8'
2017-12-13 09:32:52.8758 Debug Setting 'FileTargetEx.header' to '############################################## Testconsole log ##############################################'
2017-12-13 09:32:52.8968 Warn Error when setting '############################################## ${appname} log ##############################################' on attibute 'header'
2017-12-13 09:32:52.9028 Error Parsing configuration from D:\Repositories\gitlab.company\dotNet\HtCore\HtCore\TestConsole\bin\Debug\NLog.config failed. Exception: NLog.NLogConfigurationException: Exception when parsing D:\Repositories\gitlab.company\dotNet\HtCore\HtCore\TestConsole\bin\Debug\NLog.config. ---> NLog.NLogConfigurationException: Error when setting property 'Header' on FileTargetEx Target[file] ---> System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
bei NLog.Targets.TargetWithLayoutHeaderAndFooter.set_Header(Layout value)
--- Ende der internen Ausnahmestapelüberwachung ---
bei NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory)
bei NLog.Config.XmlLoggingConfiguration.ConfigureObjectFromAttributes(Object targetObject, NLogXmlElement element, Boolean ignoreType)
bei NLog.Config.XmlLoggingConfiguration.ParseTargetElement(Target target, NLogXmlElement targetElement, Dictionary`2 typeNameToDefaultTargetParameters)
bei NLog.Config.XmlLoggingConfiguration.ParseTargetsElement(NLogXmlElement targetsElement)
bei NLog.Config.XmlLoggingConfiguration.ParseNLogElement(NLogXmlElement nlogElement, String filePath, Boolean autoReloadDefault)
bei NLog.Config.XmlLoggingConfiguration.ParseTopLevel(NLogXmlElement content, String filePath, Boolean autoReloadDefault)
bei NLog.Config.XmlLoggingConfiguration.Initialize(XmlReader reader, String fileName, Boolean ignoreErrors)
--- Ende der internen Ausnahmestapelüberwachung ---
2017-12-13 09:32:52.9028 Debug --- NLog configuration dump ---
Nlog.conf
<?xml version="1.0" encoding="utf-8" ?>
<nlog
xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd"
autoReload="true"
internalLogFile="c:\log.txt"
internalLogLevel="Debug">
<extensions>
<add assembly="HtCore"/>
</extensions>
<variable name="appname" value="Testconsole" />
<targets async="true">
<target
xsi:type="FileTargetEx"
name="file"
filename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}.log"
keepfileopen="false"
archivefilename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}_archive.{##}.zip"
archivenumbering="dateandsequence"
archiveevery="day"
maxarchivefiles="50"
archivedateformat="yyyy-mm-dd"
archiveoldfileonstartup="true"
createdirs="true"
enablearchivefilecompression="true"
encoding="utf-8"
header="############################################## ${appname} log ##############################################"
archiveabovesize="10485760"/>
<target xsi:type="NLogViewerEx"
name="sentinel"
address="udp://127.0.0.1:9999"/>
</targets>
<rules>
<logger name="*" writeTo="file" minlevel="Info"/>
<logger name="*" writeTo="sentinel" minlevel="Info"/>
</rules>
</nlog>
C#Class
[Target("FileTargetEx")]
internal class FileTargetEx : NLog.Targets.FileTarget
{
private readonly FileLayout _Layout = new FileLayout();
public override Layout Layout { get { return _Layout; } set { } }
}
internal class FileLayout : NLog.Layouts.SimpleLayout
{
}
我总是遇到同样的错误。如果我将 FileLayout 设置为 Layout 或我正在与 Sentinel.
一起使用的其他 Layout 并不重要
当取消注释 Layout override 时，它正在加载 NLog.conf..
工作解决方案
如果有更好的解决方案，请告诉我！
/// <summary>
/// is using the <see cref="FileLayoutEx"/> class.
/// </summary>
[Target("FileTargetEx")]
internal class FileTargetEx : FileTarget
{
public override Layout Layout
{
get => _Layout;
set
{
base.Layout = new FileLayoutEx((value as SimpleLayout).OriginalText);
_Layout = new FileLayoutEx((value as SimpleLayout).OriginalText);
}
}
private Layout _Layout;
public FileTargetEx()
{
Footer = new FileLayoutEx();
Header = new FileLayoutEx();
}
}
/// <summary>
/// Provides a formated message (Exception included!).
/// </summary>
[Layout("FileLayoutEx")]
internal class FileLayoutEx : SimpleLayout
{
public FileLayoutEx() { }
public FileLayoutEx(string originalText) : base(originalText) { }
protected override string GetFormattedMessage(LogEventInfo logEvent)
{
//Extension method is outsourced
LogEventInfo updatedInfo = logEvent.GetFormattedMessage();
return base.GetFormattedMessage(updatedInfo);
}
}
NLog.conf 目标
<target
xsi:type="FileTargetEx"
name="file"
filename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}.log"
keepfileopen="false"
archivefilename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}_archive.{##}.zip"
archivenumbering="dateandsequence"
archiveevery="day"
maxarchivefiles="50"
archivedateformat="yyyy-mm-dd"
archiveoldfileonstartup="true"
createdirs="true"
enablearchivefilecompression="true"
encoding="utf-8"
header="############################################## ${appname} log ##############################################"
layout="${longdate}|${level:uppercase=true}|${logger}|${message}"
archiveabovesize="10485760"/>
我为 Sentinel 定制了 NLogViewerTarget (NLogViewerEx)，如下所示：
现在我也想为我的 FileTarget 设置格式化的消息，但是当我应用它时，它不再工作（记录）了。
<targets async="true">
<target
xsi:type="FileTargetEx"
name="file"
layout="${longdate} - ${level:uppercase=true}: ${message}${onexception:${newline}exception\: ${exception:format=tostring}}"
filename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}.log"
keepfileopen="false"
archivefilename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}_archive.{##}.zip"
archivenumbering="dateandsequence"
archiveevery="day"
maxarchivefiles="50"
archivedateformat="yyyy-mm-dd"
archiveoldfileonstartup="true"
createdirs="true"
enablearchivefilecompression="true"
encoding="utf-8"
header="############################################## ${appname} log ##############################################"
archiveabovesize="10485760"/>
<target xsi:type="NLogViewerEx"
name="sentinel"
address="udp://127.0.0.1:9999"/>
</targets>
我也尝试过自定义 FileTarget，但这也行不通。有人知道如何应用它吗？
[Target("FileTargetEx")]
internal class FileTargetEx : FileTarget
{
private readonly Log4JXmlEventLayoutEx _Layout = new Log4JXmlEventLayoutEx();
public override Layout Layout { get { return _Layout; } set { } }
}
我给了 File Target xsi:type FileTargetEx 和 xsi:type NLogViewerEx，但没有成功。如果我这样做，Sentinel 和 File 将不再记录！
调试
启用内部调试日志后，我得到以下日志：
2017-12-13 09:32:52.6572 Info Loading assembly: HtCore
2017-12-13 09:32:52.6834 Debug ScanAssembly('NLog, Version=5.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c')
2017-12-13 09:32:52.7356 Debug Start auto loading, location: D:\Repositories\gitlab.company\dotNet\HtCore\HtCore\TestConsole\bin\Debug
2017-12-13 09:32:52.7356 Debug Auto loading done
2017-12-13 09:32:52.7496 Debug ScanAssembly('HtCore, Version=1.4.0.8, Culture=neutral, PublicKeyToken=null')
2017-12-13 09:32:52.7797 Debug Setting 'UppercaseLayoutRendererWrapper.uppercase' to 'true'
2017-12-13 09:32:52.7797 Debug Setting 'FileTargetEx.name' to 'file'
2017-12-13 09:32:52.7978 Debug Setting 'FileTargetEx.filename' to '${specialfolder:folder=commonapplicationdata}/company gmbh/Testconsole/logs/Testconsole.log'
2017-12-13 09:32:52.7978 Debug Setting 'SpecialFolderLayoutRenderer.folder' to 'commonapplicationdata'
2017-12-13 09:32:52.8108 Debug Setting 'FileTargetEx.keepfileopen' to 'false'
2017-12-13 09:32:52.8108 Debug Setting 'FileTargetEx.archivefilename' to '${specialfolder:folder=commonapplicationdata}/company gmbh/Testconsole/logs/Testconsole_archive.{##}.zip'
2017-12-13 09:32:52.8108 Debug Setting 'SpecialFolderLayoutRenderer.folder' to 'commonapplicationdata'
2017-12-13 09:32:52.8278 Debug Setting 'FileTargetEx.archivenumbering' to 'dateandsequence'
2017-12-13 09:32:52.8278 Debug Setting 'FileTargetEx.archiveevery' to 'day'
2017-12-13 09:32:52.8429 Debug Setting 'FileTargetEx.maxarchivefiles' to '50'
2017-12-13 09:32:52.8429 Debug Setting 'FileTargetEx.archivedateformat' to 'yyyy-mm-dd'
2017-12-13 09:32:52.8429 Debug Setting 'FileTargetEx.archiveoldfileonstartup' to 'true'
2017-12-13 09:32:52.8634 Debug Setting 'FileTargetEx.createdirs' to 'true'
2017-12-13 09:32:52.8634 Debug Setting 'FileTargetEx.enablearchivefilecompression' to 'true'
2017-12-13 09:32:52.8758 Debug Setting 'FileTargetEx.encoding' to 'utf-8'
2017-12-13 09:32:52.8758 Debug Setting 'FileTargetEx.header' to '############################################## Testconsole log ##############################################'
2017-12-13 09:32:52.8968 Warn Error when setting '############################################## ${appname} log ##############################################' on attibute 'header'
2017-12-13 09:32:52.9028 Error Parsing configuration from D:\Repositories\gitlab.company\dotNet\HtCore\HtCore\TestConsole\bin\Debug\NLog.config failed. Exception: NLog.NLogConfigurationException: Exception when parsing D:\Repositories\gitlab.company\dotNet\HtCore\HtCore\TestConsole\bin\Debug\NLog.config. ---> NLog.NLogConfigurationException: Error when setting property 'Header' on FileTargetEx Target[file] ---> System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
bei NLog.Targets.TargetWithLayoutHeaderAndFooter.set_Header(Layout value)
--- Ende der internen Ausnahmestapelüberwachung ---
bei NLog.Internal.PropertyHelper.SetPropertyFromString(Object obj, String propertyName, String value, ConfigurationItemFactory configurationItemFactory)
bei NLog.Config.XmlLoggingConfiguration.ConfigureObjectFromAttributes(Object targetObject, NLogXmlElement element, Boolean ignoreType)
bei NLog.Config.XmlLoggingConfiguration.ParseTargetElement(Target target, NLogXmlElement targetElement, Dictionary`2 typeNameToDefaultTargetParameters)
bei NLog.Config.XmlLoggingConfiguration.ParseTargetsElement(NLogXmlElement targetsElement)
bei NLog.Config.XmlLoggingConfiguration.ParseNLogElement(NLogXmlElement nlogElement, String filePath, Boolean autoReloadDefault)
bei NLog.Config.XmlLoggingConfiguration.ParseTopLevel(NLogXmlElement content, String filePath, Boolean autoReloadDefault)
bei NLog.Config.XmlLoggingConfiguration.Initialize(XmlReader reader, String fileName, Boolean ignoreErrors)
--- Ende der internen Ausnahmestapelüberwachung ---
2017-12-13 09:32:52.9028 Debug --- NLog configuration dump ---
Nlog.conf
<?xml version="1.0" encoding="utf-8" ?>
<nlog
xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd"
autoReload="true"
internalLogFile="c:\log.txt"
internalLogLevel="Debug">
<extensions>
<add assembly="HtCore"/>
</extensions>
<variable name="appname" value="Testconsole" />
<targets async="true">
<target
xsi:type="FileTargetEx"
name="file"
filename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}.log"
keepfileopen="false"
archivefilename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}_archive.{##}.zip"
archivenumbering="dateandsequence"
archiveevery="day"
maxarchivefiles="50"
archivedateformat="yyyy-mm-dd"
archiveoldfileonstartup="true"
createdirs="true"
enablearchivefilecompression="true"
encoding="utf-8"
header="############################################## ${appname} log ##############################################"
archiveabovesize="10485760"/>
<target xsi:type="NLogViewerEx"
name="sentinel"
address="udp://127.0.0.1:9999"/>
</targets>
<rules>
<logger name="*" writeTo="file" minlevel="Info"/>
<logger name="*" writeTo="sentinel" minlevel="Info"/>
</rules>
</nlog>
C#Class
[Target("FileTargetEx")]
internal class FileTargetEx : NLog.Targets.FileTarget
{
private readonly FileLayout _Layout = new FileLayout();
public override Layout Layout { get { return _Layout; } set { } }
}
internal class FileLayout : NLog.Layouts.SimpleLayout
{
}
我总是遇到同样的错误。如果我将 FileLayout 设置为 Layout 或我正在与 Sentinel.
Layout 并不重要
当取消注释 Layout override 时，它正在加载 NLog.conf..
工作解决方案
如果有更好的解决方案，请告诉我！
/// <summary>
/// is using the <see cref="FileLayoutEx"/> class.
/// </summary>
[Target("FileTargetEx")]
internal class FileTargetEx : FileTarget
{
public override Layout Layout
{
get => _Layout;
set
{
base.Layout = new FileLayoutEx((value as SimpleLayout).OriginalText);
_Layout = new FileLayoutEx((value as SimpleLayout).OriginalText);
}
}
private Layout _Layout;
public FileTargetEx()
{
Footer = new FileLayoutEx();
Header = new FileLayoutEx();
}
}
/// <summary>
/// Provides a formated message (Exception included!).
/// </summary>
[Layout("FileLayoutEx")]
internal class FileLayoutEx : SimpleLayout
{
public FileLayoutEx() { }
public FileLayoutEx(string originalText) : base(originalText) { }
protected override string GetFormattedMessage(LogEventInfo logEvent)
{
//Extension method is outsourced
LogEventInfo updatedInfo = logEvent.GetFormattedMessage();
return base.GetFormattedMessage(updatedInfo);
}
}
NLog.conf 目标
<target
xsi:type="FileTargetEx"
name="file"
filename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}.log"
keepfileopen="false"
archivefilename="${specialfolder:folder=commonapplicationdata}/company gmbh/${appname}/logs/${appname}_archive.{##}.zip"
archivenumbering="dateandsequence"
archiveevery="day"
maxarchivefiles="50"
archivedateformat="yyyy-mm-dd"
archiveoldfileonstartup="true"
createdirs="true"
enablearchivefilecompression="true"
encoding="utf-8"
header="############################################## ${appname} log ##############################################"
layout="${longdate}|${level:uppercase=true}|${logger}|${message}"
archiveabovesize="10485760"/>