Does anyone know how to specify the date format so that leading zeros do not appear in the log? I know it sounds very picky, but another process is reading my logs and seems not to like leading zeros.
I am using:
<appender name="UdpAppender" type="log4net.Appender.UdpAppender">
<filter type="log4net.Filter.LoggerMatchFilter">
<loggerToMatch value="NamespaceName.ClassName" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<param name="RemoteAddress" value="192.168.1.123" />
<param name="RemotePort" value="514" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date{MM/dd/yyyy hh:mm:ss tt} %message %newline" />
</layout>
</appender>
And I get this:
07/10/2012 09:20:39 AM ...
If possible, I'd like to get:
7/10/2012 9:20:39 AM
I tried simply using: %date{M/dd/yyyy h:mm:ss tt}
But it didn't work (and also seems odd for when two chars are needed)
Edit on 07/15/12:
I am not yet back at the office so I haven't checked on the UDP bug yet, but in case anyone else out there wants to extend an appender simply to add a property to pass into your app:
public class SyslogAppender : UdpAppender
{
public string UpdateIp { get; set; }
// ReSharper disable RedundantOverridenMember
override protected void Append(LoggingEvent loggingEvent)
{
base.Append(loggingEvent);
}
// ReSharper restore RedundantOverridenMember
}
<appender name="UdpAppender" type="Namespace.Log4Net.SyslogAppender">
<filter type="log4net.Filter.LoggerMatchFilter">
<loggerToMatch value="Namespace.LogGenFileReparser" />
</filter>
<filter type="log4net.Filter.LoggerMatchFilter">
<loggerToMatch value="Namespace.Log4Net.SyslogAppender" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<param name="RemoteAddress" value="192.168.73.133" />
<param name="RemotePort" value="514" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date{M/dd/yyyy h:mm:ss tt} %message %newline" />
</layout>
<param name="UpdateIp" value="false" />
</appender>
I check the new param before calling configure:
var log4FileConfigFile = XDocument.Parse(File.ReadAllText("log4net.config"));
var firstOrDefault = log4FileConfigFile.Descendants("log4net").Descendants("appender").
Select(appender => appender.Attributes().
FirstOrDefault(attrib => attrib.Name == "name" && attrib.Value == "UdpAppender")).
FirstOrDefault(check => null != check);
if (firstOrDefault != null)
if (firstOrDefault.Document != null)
{
var xAttribute2 = firstOrDefault.Document.Descendants("param").
Attributes().FirstOrDefault(attrib => attrib.Value == "UpdateIp");
if (xAttribute2 != null && xAttribute2.Value.ToLower().Equals("true"))
{
var xAttribute = firstOrDefault.Document.Descendants("param").
Attributes().FirstOrDefault(attrib => attrib.Value == "RemoteAddress");
if (xAttribute != null)
xAttribute.NextAttribute.SetValue(
IPAddresses.GetLocalIp().ToString());
}
}
XmlConfigurator.Configure(...
Edit 7/17/12
I had no other log4net error (with UDP appender). The problem was in the receiver.
Works for me but I'm logging to a file.
Are you sure whatever you are using the view the log isn't re-formatting the output?
Related
I have an SmtpAppender like this:
<appender name="SmtpAppender" type="log4net.Appender.SmtpAppender">
<to value="MyEmail#example.org" />
<from value="SenderEmail#example.org" />
<subject type="log4net.Util.PatternString" value="This is a subject" />
<smtpHost value="smtp.host.value" />
<authentication value="Basic" />
<port value="587" />
<username value="Username" />
<password value="Password" />
<bufferSize value="1" />
<EnableSsl value="true"/>
<lossy value="false" />
<threshold value="ERROR" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%3thread] %-5level [%class].[%method] - %message%newline" />
</layout>
</appender>
I would like to change the subject of the log mail in my code to a string I would specify so it suits my needs better than a standard subject.
Right now I achieve it like this. First, I find the SmtpAppender by name:
public static IAppender FindAppenderByName(string name)
{
ILoggerRepository rootRep = LogManager.GetRepository();
foreach (IAppender iApp in rootRep.GetAppenders()) {
if (string.Compare(name, iApp.Name, true) == 0) {
return iApp;
}
}
return null;
}
and then I can change the subject like this:
IAppender appender = FindAppenderByName("SmtpAppender");
SmtpAppender smtpAppender = (SmtpAppender)appender;
smtpAppender.Subject = "An error occured trying to convert the values";
log.Error("Error message");
But this seems to be a bit too complicated since every time I send an error mail I first have to find the appender by name and I don't want to use a global IAppender object as well as that seems like bad practice to me.
Is there a way to use the user-specified error message as a subject or is there an extension method I could use?
My proposal is as follows :
Create a new class extending SmtpAppender
Override SendBuffer
Based on your LoggingEvent, dynamically change the base.Subject
public class CustomSmtpAppender : SmtpAppender
{
protected override void SendBuffer(LoggingEvent[] events)
{
PrepareSubject(events);
base.SendBuffer(events);
}
protected virtual void PrepareSubject(IEnumerable<LoggingEvent> events)
{
//here you can eval events and set base.Subject
}
}
I need to log with log4net into multiple targets (loggly, console, file). For loggly I need to log in JSON for some metadata to find logs. I am altering the messageobject for this by adding the metadata to the dynamic messageobject like this (example subject).
public void Info(string message)
{
log.Info(GetLogObject(message));
}
private object GetLogObject(string message, Exception ex = null)
{
dynamic obj = new ExpandoObject();
obj.message = message;
obj.exception = ex;
obj.subject = _configuration.SubjectId;
return obj;
}
app.config
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="ConsoleAppender" />
<appender-ref ref="RollingFileAppender" />
<appender-ref ref="LogglyAppender" />
</root>
<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date - %message%newline" />
</layout>
</appender>
<appender name="LogglyAppender" type="log4net.loggly.LogglyAppender, log4net-loggly">
<rootUrl value="https://logs-01.loggly.com/" />
<inputKey value="*" />
<tag value="AppTag" />
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="ERROR" />
<levelMax value="FATAL" />
</filter>
</appender>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="Logs/rolling.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="5" />
<maximumFileSize value="10MB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level - %message%newline" />
</layout>
</appender>
Now the Console and FileAppenders are logging JSON as this:
2017-06-12 15:28:10,236 INFO - {[message, Will collect every 1 Hours, 0 Minutes and 0 Seconds], [exception, ], [subject, 11111111-1111-1111-1111-111111111111]}
2017-06-12 15:28:10,271 INFO - {[message, Collection Round started at 12.06.2017 13:28:10], [exception, ], [subject, 11111111-1111-1111-1111-111111111111]}
I want these appenders just to log the message itself (obj.message) to look like this:
2017-06-12 15:28:10,236 INFO - Will collect every 1 Hours, 0 Minutes and 0 Seconds
2017-06-12 15:28:10,271 INFO - Collection Round started at 12.06.2017 11:17:29
How can I do this?
Thank you very much :)
What would happen if you created your own type for the message object (instead of using a dynamic object), and override the ToString() method? I suspect, LogglyAppender would render the graph while the regular PatternLayout would resort to ToString(). I haven't tried this, just a hint. You could perhaps subclass the ExpandoObject not to loose that dynamicity.
Ok, here's the appender:
<appender name="DebugFileAppender" type="log4net.Appender.FileAppender">
<file value="debug.log" />
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<filter type="log4net.Filter.PropertyFilter">
<Key value="ApplicationName" />
<StringToMatch value="Test Application" />
</filter>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
<levelMax value="DEBUG" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="Date:%date Thread:[%thread] Level:%-5level Logger:%logger - ApplicationName:%property{ApplicationName}; Message:%message%newline" />
</layout>
</appender>
Now, it seems this would check the ThreadContext.Properties["ApplicationName"] string and if it finds 'Test Application' it would log.
Well, it's logging everything, even if ApplicationName="DoNotLog".
Now, I will freely admit this may be due to the way I'm (attempting) to use Log4Net - I need to expose it to COM, so I've wrapped up a singleton Log4Net instance, and call this from COM:
public void LogDebug(LogCodeSource codeSource, LogExecutionSource execSource, object message, Exception exception = null)
{
// Add the thread context properties for appender filtering purposes
log4net.ThreadContext.Properties["ApplicationName"] = codeSource.ApplicationName;
log4net.ThreadContext.Properties["ComponentName"] = codeSource.ComponentName;
log4net.ThreadContext.Properties["MethodName"] = codeSource.MethodName;
log4net.ThreadContext.Properties["ClientMachineName"] = execSource.ClientMachineName;
log4net.ThreadContext.Properties["ServerMachineName"] = execSource.ServerMachineName;
log4net.ThreadContext.Properties["UserName"] = execSource.UserName;
if (exception == null)
{
LoggerContext.GetInstance.MainLogger.Debug(message);
}
else
{
LoggerContext.GetInstance.MainLogger.Debug(message, exception);
}
}
In my tests, if I call:
var logger = new MyLogger();
logger.LogDebug(new LogCodeSource { ApplicationName = "Test Application", ComponentName = "Test component", MethodName = "Test method" }, new LogExecutionSource { ClientMachineName = "Test client", ServerMachineName = "Test server", UserName = "Test user" }, "Test message");
logger.LogDebug(new LogCodeSource { ApplicationName = "DoNotLog", ComponentName = "Test component", MethodName = "Test method" }, new LogExecutionSource { ClientMachineName = "Test client", ServerMachineName = "Test server", UserName = "Test user" }, "Test message");
In root, I've tried:
<root>
<appender-ref ref="DebugFileAppender" />
</root>
As well as:
<logger name="MyLogger">
<level value="DEBUG" />
<appender-ref ref="DebugFileAppender" />
</logger>
Both logs are showing up in my debug.log file.
Any idea why the property filter isn't preventing DoNotLog from going to debug.log?
Here's what I'm seeing in the log:
Date:2015-12-31 11:11:00,928 Thread:[14] Level:DEBUG Logger:MyLogger - ApplicationName:Test Application; Message:Test message
Date:2015-12-31 11:11:00,942 Thread:[14] Level:DEBUG Logger:MyLogger - ApplicationName:DoNotLog; Message:Test message
What you are after is an AND filter since you want to log all message where ApplicationName matches a particular name AND the level is DEBUG. Unfortunately log4net doesn't ship AND filters out of the box however this SO answer details how to implement one.
Property filter are also available when using Microsoft.Extensions.Logging.Abstraction instead if log4Net directly.
Example:
using (_logger.BeginScope(new[] { new KeyValuePair<string, object>("YourPropertyKey", "YourPropertyValue") }))
{
_logger.LogDebug("My special log with context property set");
}
Then in the config an appender has to be setup for the property and key.
Note there is rexexToMatch in oder to stringToMacth if you want to allow multiple values to a key.
<log4net>
<root>
<level value="ALL" />
<appender-ref ref="property_logger" />
</root>
<appender name="property_logger" type="log4net.Appender.RollingFileAppender">
<file value="logs/my_service.log" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="-yyyyMMdd" />
<maxSizeRollBackups value="5" />
<maximumFileSize value="5MB" />
<preserveLogFileNameExtension value="true" />
<staticLogFileName value="false" />
<filter type="log4net.Filter.PropertyFilter">
<Key value="YourPropertyKey" />
<StringToMatch value="YourPropertyValue" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%2thread] %-5level %.50logger - %message%newline" />
</layout>
</appender>
</log4net>
I want to ask something on log4j. I have this config file for log4j on activemq. My problem is that I want to log all INFO level messages from every class I have, but I want to log all DEBUG level messages from "TransportConnection" class to a different file and, at the same time, log all only messages that are greater or equal to WARN level, to the rootLogger.
The problem with this configuration is that I log INFO level messages from "TransportConnection" class in the rootLogger. I want to pass only the WARN and above level to the rootLogger.
I dont want to set a Threshold to the "out" appender, because I want INFO level messages from other classes.
log4j.rootLogger=INFO,out
# Log these warnings
log4j.logger.org.apache.activemq.broker.BrokerRegistry=INFO
log4j.logger.org.apache.activemq.broker.TransportConnection=DEBUG,tc
# Standard logging
log4j.appender.out=org.apache.log4j.RollingFileAppender
log4j.appender.out.file=/var/lib/activemq/log/activemq.log
log4j.appender.out.maxFileSize=10240KB
log4j.appender.out.maxBackupIndex=100
log4j.appender.out.append=true
log4j.appender.out.layout=org.apache.log4j.PatternLayout
log4j.appender.out.layout.ConversionPattern=%d [%-15.15t] %-5p %-30.30c{1} - %m%n
# Transport Connections logging
log4j.appender.tc=org.apache.log4j.RollingFileAppender
log4j.appender.tc.file=/var/lib/activemq/log/tc.log
log4j.appender.tc.maxFileSize=10240KB
log4j.appender.tc.maxBackupIndex=100
log4j.appender.tc.append=true
log4j.appender.tc.layout=org.apache.log4j.PatternLayout
log4j.appender.tc.layout.ConversionPattern=%d [%t] %-5p %-30.30c{1} - %m%n
You could write your own custom filter. I suggest that implementation could be something like that:
public class MinLevelForParticularClassFilter extends Filter {
private boolean acceptOnMatch = false;
private Level level;
private String className;
#Override
public int decide(LoggingEvent event) {
if (this.className != null && this.level != null) {
if (event.getLocationInformation().getClassName().startsWith(className)) {
// this is event for specified class
if (!event.getLevel().isGreaterOrEqual(this.level)) {
// level of event is less than specified level
return Filter.DENY;
}
}
}
if (acceptOnMatch) {
return Filter.ACCEPT;
} else {
return Filter.NEUTRAL;
}
}
public boolean isAcceptOnMatch() { return acceptOnMatch; }
public void setAcceptOnMatch(boolean acceptOnMatch) { this.acceptOnMatch = acceptOnMatch; }
public Level getLevel() { return level; }
public void setLevel(Level level) { this.level = level; }
public String getClassName() { return className; }
public void setClassName(String className) { this.className = className; }
}
Note that if you change "className" variable to "packageName" variable, the implementation will be the same for filter by particular package.
The log4j configuration in XML (since filters are unsupported by configuration in property files):
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="out" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="activemq.log" />
<param name="MaxFileSize" value="10240KB" />
<param name="MaxBackupIndex" value="100" />
<param name="Append" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%-15.15t] %-5p %-30.30c{1} - %m%n"/>
</layout>
<!-- Apply filter to appender that's destined for root logger -->
<filter class="com.foo.log4j.filters.MinLevelForParticularClassFilter">
<param name="Level" value="WARN" />
<param name="ClassName" value="org.apache.activemq.broker.TransportConnection" />
<param name="AcceptOnMatch" value="true" />
</filter>
</appender>
<appender name="tc" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="tc.log" />
<param name="MaxFileSize" value="10240KB" />
<param name="MaxBackupIndex" value="100" />
<param name="Append" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %-30.30c{1} - %m%n"/>
</layout>
</appender>
<logger name="org.apache.activemq.broker.BrokerRegistry">
<level value="INFO" />
</logger>
<logger name="org.apache.activemq.broker.TransportConnection">
<level value="DEBUG" />
<appender-ref ref="tc" />
</logger>
<root>
<priority value ="INFO" />
<appender-ref ref="out" />
</root>
</log4j:configuration>
I have the following log4net config:
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="Logs/%date{yyyy-MM-dd} Service.log" />
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<rollingStyle value="Date"/>
<datePattern value="yyyy-MM-dd"/>
<maxSizeRollBackups value="100"/>
<maximumFileSize value="15MB"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %-5level %logger: %message%newline" />
</layout>
</appender>
Data will be logged constantly to the log file and rolls OK but I end up having rolled files like this:
2009-12-21 Service.log2009-12-22 (this is what it will write tonight)
2009-12-21 Service.log <-- this being the latest file
2009-12-21 Service.log2009-12-21 <-- last updated 23:59
I want the files to be like:
2009-12-21 Service.log
2009-12-22 Service.log
2009-12-23 Service.log
Get rid of the file name and the type in the file element:
<file value="Logs\" />
Then change your datePattern to (note: make sure you escape the letters in 'Service' appropriately, like the g in 'log' is a special format, so you need to escape it with the '\'):
<datePattern value="yyyy-MM-dd Service.lo\g"/>
I think the following should be what you need.
Add in the following element within your <appender />.
<staticLogFileName value="true" />
You can use the function below.
In this function first get file location that you set in webconfig and after that you can add any path that you want! (like Date, our Customer, or...)
WebConfig:
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="C:\\t4\\"/>
<appendToFile value="true"/>
<rollingStyle value="Composite"/>
<datePattern value="_yyyy-MM-dd.lo'g'"/>
<maxSizeRollBackups value="10"/>
<maximumFileSize value="1MB"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date User:%identity IP:%X{addr} Browser: %X{browser} Url: %X{url} [%thread] %-5level %c:%m%n"/>
</layout>
</appender>
Function:
public static void ChangeFileLocation(string _CustomerName,string _Project)
{
XmlConfigurator.Configure();
log4net.Repository.Hierarchy.Hierarchy h = (log4net.Repository.Hierarchy.Hierarchy)LogManager.GetRepository();
foreach (IAppender a in h.Root.Appenders)
{
if (a is FileAppender)
{
FileAppender fa = (FileAppender)a;
string sNowDate= DateTime.Now.ToLongDateString();
// Programmatically set this to the desired location here
string FileLocationinWebConfig = fa.File;
string logFileLocation = FileLocationinWebConfig + _Project + "\\" + _CustomerName + "\\" + sNowDate + ".log";
fa.File = logFileLocation;
fa.ActivateOptions();
break;
}
}
}
and result like this: C:\Logs\TestProject\Customer1\Saturday, August 31, 2013.log