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From Echo <ahmed.osama....@gmail.com>
Subject Log into an additional file at Apache Karaf using DSL
Date Mon, 18 Jul 2011 17:11:48 GMT
I have a system that uses both Apache Camel and Karaf. 

I need some specific processor to log into a new log instead of the default
one ,karaf.log. 

I have reached that there is a file called "org.ops4j.pax.logging.cfg" that
is responsible for logging configuration . 

Here it's the file before I mess with it : 


################################################################################ 
# 
#    Licensed to the Apache Software Foundation (ASF) under one or more 
#    contributor license agreements.  See the NOTICE file distributed with 
#    this work for additional information regarding copyright ownership. 
#    The ASF licenses this file to You under the Apache License, Version 2.0 
#    (the "License"); you may not use this file except in compliance with 
#    the License.  You may obtain a copy of the License at 
# 
#       http://www.apache.org/licenses/LICENSE-2.0
# 
#    Unless required by applicable law or agreed to in writing, software 
#    distributed under the License is distributed on an "AS IS" BASIS, 
#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. 
#    See the License for the specific language governing permissions and 
#    limitations under the License. 
# 
################################################################################ 

# Root logger 
log4j.rootLogger=INFO, out, osgi:VmLogAppender 
log4j.throwableRenderer=org.apache.log4j.OsgiThrowableRenderer 

# CONSOLE appender not used by default 
log4j.appender.stdout=org.apache.log4j.ConsoleAppender 
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} | %-5.5p |
%-16.16t | %-32.32c{1} | %-32.32C %4L | %X{bundle.id} - %X{bundle.name} -
%X{bundle.version} | %m%n 

# File appender 
log4j.appender.out=org.apache.log4j.RollingFileAppender 
log4j.appender.out.layout=org.apache.log4j.PatternLayout 
log4j.appender.out.layout.ConversionPattern=%d{ABSOLUTE} | %-5.5p | %-16.16t
| %-32.32c{1} | %-32.32C %4L | %X{bundle.id} - %X{bundle.name} -
%X{bundle.version} | %m%n 
log4j.appender.out.file=${karaf.data}/log/karaf.log 
log4j.appender.out.append=true 
log4j.appender.out.maxFileSize=1MB 
log4j.appender.out.maxBackupIndex=10 

# Sift appender 
log4j.appender.sift=org.apache.log4j.sift.MDCSiftingAppender 
log4j.appender.sift.key=bundle.name 
log4j.appender.sift.default=karaf 
log4j.appender.sift.appender=org.apache.log4j.FileAppender 
log4j.appender.sift.appender.layout=org.apache.log4j.PatternLayout 
log4j.appender.sift.appender.layout.ConversionPattern=%d{ABSOLUTE} | %-5.5p
| %-16.16t | %-32.32c{1} | %-32.32C %4L | %m%n 
log4j.appender.sift.appender.file=${karaf.data}/log/$\\{bundle.name\\}.log 
log4j.appender.sift.appender.append=true 




Now I have added an extra File appender : 

# Additional File appender 
log4j.rootLogger=INFO,new, osgi:VmLogAppender     
log4j.appender.new=org.apache.log4j.RollingFileAppender 
log4j.appender.new.layout=org.apache.log4j.PatternLayout 
log4j.appender.new.layout.ConversionPattern=%d{ABSOLUTE} | %-5.5p | %-16.16t
| %-32.32c{1} | %-32.32C %4L | %X{bundle.id} - %X{bundle.name} -
%X{bundle.version} | %m%n 
log4j.appender.new.file=${karaf.data}/log/new.log 
log4j.appender.new.append=true 
log4j.appender.new.maxFileSize=1MB 
log4j.appender.new.maxBackupIndex=10 


And from Camel , I logged from DSL : 

process(exceptionProcessor). 
      process(doSmth).log(LoggingLevel.INFO,"new","That is a new file to log
into") 
The result now that it logs erverything on the "new.log" file . Regarding
the karaf.log , I got this : 

Jul 18, 2011 6:00:03 PM org.apache.karaf.main.SimpleFileLock lock 
INFO: locking 
The question is : how could I log into"new.log" just in case a specific
processor . Others will be logged into the karaf.log !!

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