How do i actice Logging?

telly · **Joined:** Tue Mar 25, 2008 11:48 am **Posts:** 12

Ola!

I want to activate Logging. My Project ist a Windows Applikation and i use the newest NHibernate Version.

Can Somebody help me? I see that i must use log4net, but i don't understand how to config this tool with a app.config file.....

Many Tnx, teLLy

wolli · **Posted:** Wed Mar 26, 2008 12:10 pm

Have look on these posts http://forum.hibernate.org/viewtopic.php?t=984813&highlight=

telly · **Joined:** Tue Mar 25, 2008 11:48 am **Posts:** 12

i Tried it, but it will not work: I try to explain my Steps:

First create new file "app.config"

Code:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

  <configSections>
    <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
  </configSections>

  <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
    <session-factory>
      <property name="dialect">NHibernate.Dialect.MsSql2000Dialect</property>
      <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
      <!--<property name="connection.connection_string">Server=(local);Database=studio;Uid=studio;Pwd=;</property>-->
      <property name="show_sql">false</property>
      <mapping assembly="Studio.Database.NHibernate"/>

    </session-factory>


  </hibernate-configuration>

  <log4net debug="false">

    <appender name="TraceAppender" type="log4net.Appender.TraceAppender, log4net">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%-5level %M - %message%newline" />
      </layout>

    </appender>


    <root>
      <level value="OFF" />
      <appender-ref ref="TraceAppender"/>
    </root>

    <logger name="NHibernate">
      <level value="OFF"/>
    </logger>


    <logger name="Logger">
      <level value="OFF"/>
      <appender-ref ref="TraceAppender" />
    </logger>

    <logger name="NHibernate.Loader.Entity.AbstractEntityLoader">
      <level value="OFF"/>
      <appender-ref ref="TraceAppender"/>
    </logger>

  </log4net>

</configuration>

Than i set "Build Action" = Embedded Ressource

Than i edit my Programm.cs

Code:

[STAThread]
        static void Main()
        {
            
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);

            log4net.Config.XmlConfigurator.Configure();
            
            Application.Run(new Form1());
        }

Than i called the Configuration File:

Code:

private Configuration _Configuration = new Configuration().Configure();

But the Logging will not work! What shut i change? And where can i generally see the logging? i prefared it, if log4net will create a txt.file....

teLLy

FlukeFan · **Posted:** Wed Mar 26, 2008 5:18 pm

Hi teLLy,

Here's an example log4net configuration I posted previously that writes to a file:

Code:

<configuration> 

    <configSections> 
        <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/> 
        ... 
    </configSections> 

    <log4net> 
        <appender name="MyNhLog" type="log4net.Appender.RollingFileAppender"> 
            <param name="File" value="c:\MyNhLog.log"/> 
            <layout type="log4net.Layout.PatternLayout"> 
                <conversionPattern value="%d level %message%newline" /> 
            </layout> 
        </appender> 
        <logger name="NHibernate"> 
            <level value="INFO" /> 
            <appender-ref ref="MyNhLog"/> 
        </logger> 
    </log4net> 
    ... 
</configuration> 

Originally posted here:
http://forum.hibernate.org/viewtopic.php?p=2375439

This writes to a file at c:\MyNhLog.log. Is that what you were after?

Regards,
Richard

P.S., just double-checking; the app.config is not an embedded resource - just your .hbm.xml files.

wolli · **Posted:** Thu Mar 27, 2008 3:18 am

You have to change the level values to something different then OFF: INFO, WARNING, ERROR, DEBUG.

telly · **Joined:** Tue Mar 25, 2008 11:48 am **Posts:** 12

Also Tnx for the Help here !!

Hmm, i changed the app.config file to:

Code:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

  <configSections>
    <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
  </configSections>

  <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
    <session-factory>
      <property name="dialect">NHibernate.Dialect.MsSql2000Dialect</property>
      <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
      <!--<property name="connection.connection_string">Server=(local);Database=studio;Uid=studio;Pwd=;</property>-->
      <property name="show_sql">false</property>
      <mapping assembly="Studio.Database.NHibernate"/>

    </session-factory>


  </hibernate-configuration>

  <log4net debug="false">

    <appender name="TraceAppender" type="log4net.Appender.TraceAppender, log4net">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%-5level %M - %message%newline" />
      </layout>

    </appender>
    
    <appender name="RollingFile" type="log4net.Appender.RollingFileAppender">
      <file value="example.log" />
      <appendToFile value="true" />
      <maximumFileSize value="100KB" />
      <maxSizeRollBackups value="2" />

      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%level %thread %logger - %message%newline" />
      </layout>
    </appender>


    <root>
      <level value="DEBUG" />
      <appender-ref ref="TraceAppender"/>
    </root>

    <logger name="NHibernate">
      <level value="DEBUG"/>
    </logger>


    <logger name="Logger">
      <level value="DEBUG"/>
      <appender-ref ref="TraceAppender" />
    </logger>

    <logger name="NHibernate.Loader.Entity.AbstractEntityLoader">
      <level value="DEBUG"/>
      <appender-ref ref="TraceAppender"/>
    </logger>

  </log4net>

</configuration>

But no while will be created...what i have to change???

teLLy

FlukeFan · **Posted:** Thu Mar 27, 2008 7:16 am

Hi Telly,

If you want to use the appender with name 'RollingFile', then you need to add an appender-ref to it.

Code:

    <logger name="NHibernate"> 
      <level value="DEBUG"/> 
      <appender-ref ref="RollingFile"/>
    </logger> 

Regards,
Richard

telly · **Joined:** Tue Mar 25, 2008 11:48 am **Posts:** 12

I try this a few minits ago but it will not work. Log4net doesnt create a file.

Any suggestions?

EDIT:

How to activate Logging in my applikation? I only add

log4net.Config.XmlConfigurator.Configure();

to the Programm, but i assume this Method doesnt find the App.config. Should i add call another Method or set a special Property eg?

teLLy

FlukeFan · **Posted:** Thu Mar 27, 2008 7:42 am

Hi Telly,

The configuration of your log4net RollingFileAppender is different to the example I gave earlier.

Can you try replacing your entire log4net section with just:

Code:

<log4net>
    <appender name="MyNhLog" type="log4net.Appender.RollingFileAppender">
        <param name="File" value="MyNhLog.log"/>
        <layout type="log4net.Layout.PatternLayout">
            <conversionPattern value="%d level %message%newline" />
        </layout>
    </appender>

    <logger name="NHibernate">
        <level value="INFO" />
        <appender-ref ref="MyNhLog"/>
    </logger>
</log4net>

Regards,
Richard

P.S., the .config file should be named according to your .exe ... so your config file should be named App.exe.config if your application is App.exe

telly · **Joined:** Tue Mar 25, 2008 11:48 am **Posts:** 12

Ola!

I get it.

I had to set the App.config
Build Action = None
Copy to Output diretory = Do not copy

Tnx for all your Support!

teLLy