CODEWITHSUNDEEP
javajava.util.logging
Viktor Carlson
Viktor Carlson

Reputation: 1008

Java logging.properties file only print specific logger

I am using a .jar file and read from a logging.properties file.

This is the command I use to start the application ( a proxy application )

java -Djava.util.logging.config.file=logging.properties -jar CMDHL7Proxy_v0.7.jar

I already configured the file logging.properties to log to a file.

This is the content of my logging.properties file:

handlers= java.util.logging.FileHandler

java.util.logging.FileHandler.pattern = /opt/log/Proxy_%u_%g.log
java.util.logging.FileHandler.limit = 50000
java.util.logging.FileHandler.count = 1
java.util.logging.FileHandler.formatter = java.util.logging.SimpleFormatter

# Facility specific properties. Provides extra control for each logger.
# For example, set the com.xyz.foo logger to only log SEVERE messages:
com.xyz.foo.level = SEVERE
ca.uhn.log.HapiLogImpl = OFF
au.id.czapski.hl7.SimpleForwardApplicaiton = ALL

If I look into the .log file then I see log messages from:

Jan 28, 2019 5:48:31 PM ca.uhn.log.HapiLogImpl info <.... logged content .... > <.... logged content .... >

and

Jan 28, 2019 5:29:34 PM au.id.czapski.hl7.SimpleForwardApplicaiton processMessage <.... logged content .... > <.... logged content .... >

My Goal is to only get messages from this logger "au.id.czapski.hl7.SimpleForwardApplicaiton"

My understanding tells me the the last two lines in my logging.properties file should tell java to not log anything from the first logger but everything from the second logger.

I also tried setting different values with .level and java.util.logging.FileHandler.level but to set java.util.logging.FileHandler.level=processMessage did result in a configuration error.

Can someone help me to achieve my desired behavior by only modifying the logging.properties file.

Upvotes: 1

Views: 5214

Answers (1)

jmehrens
jmehrens

Reputation: 11045

Looks like:

  1. You forgot to include '.level' when setting the level of a logger.
  2. You misspelled 'SimpleForwardApplicaiton'. Does that match the logger name?
  3. You didn't turn off all of the other loggers. This only works for loggers that have been created by code.

Try setting the root logger to OFF and only turning on logger you want to see

handlers= java.util.logging.FileHandler

java.util.logging.FileHandler.pattern = /opt/log/Proxy_%u_%g.log
java.util.logging.FileHandler.limit = 50000
java.util.logging.FileHandler.level = ALL
java.util.logging.FileHandler.count = 1
java.util.logging.FileHandler.formatter = java.util.logging.SimpleFormatter

.level=OFF
au.id.czapski.hl7.SimpleForwardApplicaiton.level = ALL
au.id.czapski.hl7.SimpleForwardApplication.level = ALL

Upvotes: 2

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