New subject: MDC and env-entry

23 Feb 2011

      Hi,
...
Hi, again with another question.
With aspectj, in injecting a var in MCD, something like this...
MDC.put("code",var);
in some places, depending something, and i'm using this to generate a
diferent file for this something like
<appender name="APPENDER"
class="ch.qos.logback.classic.sift.SiftingAppender">
       <filter class="ch.qos.logback.core.filter.EvaluatorFilter">
           <evaluator
class="ch.qos.logback.classic.boolex.JaninoEventEvaluator">
                 <expression>
                   (marker != null)
                   && (
                       (marker.contains("ASPECTJ")) ||
                       (marker.contains("SOAP")))
                 </expression>
           </evaluator>
           <onMatch>DENY</onMatch>
       </filter>
       <discriminator>
           <Key>code</Key>
            <DefaultValue>0000</DefaultValue>
         </discriminator>
         <sift>
           <appender name="FILE-${code}"
class="ch.qos.logback.core.rolling.RollingFileAppender">
               <prudent>${prudent}</prudent>
<!-- 5 l?neas de stacktrace para las excepciones -->
               <encoder
class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
                   <Pattern>%date - [%thread] - %.-20M - %L -
cn=%contextName - [%thread] - [%X{code}] - %message%n
%exception{5}</Pattern>
               </encoder>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<FileNamePattern>${USER_HOME}/${backupDir}${code}.%d${patronRolling}</FileNamePattern>
<MaxHistory>${maxHistory}</MaxHistory>
               </rollingPolicy>
            </appender>
     </sift>
  </appender>
ASPECTJ and SOAP are Markers of other traces, that i don't want to see
here.
This way i get
in my root log directory ${USER_HOME}/${backupDir} files like
0001.log
0002.log
But, now i have multile apps (wars and ejbs) where i use
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="
http://java.sun.com/xml/ns/javaee" xmlns:web="
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="
http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID"
version="2.5">
   ...
<env-entry>
       <description>JNDI logging context for this app</description>
       <env-entry-name>logback/context-name</env-entry-name>
       <env-entry-type>java.lang.String</env-entry-type>
       <env-entry-value>APP1</env-entry-value>
   </env-entry>
   <env-entry>
       <description>URL for configuring logback context</description>
       <env-entry-name>logback/configuration-resource</env-entry-name>
       <env-entry-type>java.lang.String</env-entry-type>
       <env-entry-value>logback.xml</env-entry-value>
   </env-entry>
...
</web-app>
ejb-jar.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise
JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
   <enterprise-beans>
       <session>
           ...
<env-entry>
               <description>JNDI logging context for this app</description>
               <env-entry-name>logback/context-name</env-entry-name>
               <env-entry-type>java.lang.String</env-entry-type>
               <env-entry-value>EJB1</env-entry-value>
           </env-entry>
           <env-entry>
               <description>URL for configuring logback
context</description>
<env-entry-name>logback/configuration-resource</env-entry-name>
               <env-entry-type>java.lang.String</env-entry-type>
               <env-entry-value>logback.xml</env-entry-value>
           </env-entry>
...
       </session>
   </enterprise-beans>
...
</ejb-jar>
a env-entry to identificate. I know that insede file, i use cn=%contextName
to see this context but...
How could i use this context like i use ${code} to separete this files
(0001.log, 0002.log) in diferents directories.
I'll make more simple... how to mix

<discriminator
class="ch.qos.logback.classic.sift.JNDIBasedContextDiscriminator">
            <defaultValue>unknown</defaultValue>
</discriminator>

and

<discriminator>
     <Key>code</Key>
     <DefaultValue>0000</DefaultValue>
</discriminator>

this is a MDC, form use %code (inside log line) like ${contextName} in name
file.

Can i have 2 discriminator inside 1 appender?

PD: logback version 0.9.21.

Thanks.

-- 
Jose Juan Montiel Martinez
Eurobits Technologies
Calle Musgo 3, 1ª Planta
28023 Madrid
T +34-917080300
F +34-913077480
josejuan.montiel@eurobits.es
http://www.eurobits.com

Re: [logback-user] MDC and env-entry

José Juan Montiel

Ceki Gulcu

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