How to disable logger (print output) of a java library (jar) used in a java program ?
For example i use the jar joda-time-2.8.2.jar
What should I put in my logback.xml file to disable the console output of the jar
logback.xml:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<Target>System.out</Target>
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n</pattern>
</encoder>
</appender>
<logger name="com.paper.white" additivity="false" level="TRACE">
<appender-ref ref="stdout" />
</logger>
<root level="WARN">
<appender-ref ref="stdout" />
</root>
</configuration>
Just create a logger for org.joda.time and set the level to OFF.
<logger name="org.joda.time" level="OFF" >
<appender-ref ref="stdout"/>
</logger>
Related
In my application I use Java, Hibernate.
Logging : I use logback.xml
Can anyone suggest if there is a way to disable the logs from the below specific class from Hibernate jar.
LOGGER to be removed from the specific class : ERROR o.h.e.jdbc.spi.SqlExceptionHelper
logback.xml:
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n
</Pattern>
</layout>
</appender>
<logger name="org.springframework" level="error"
additivity="false">
<appender-ref ref="STDOUT" />
</logger>
<root level="error">
<appender-ref ref="STDOUT" />
</root>
</configuration>
Add the following to your logback.xml configuration file:
<logger name="org.hibernate.engine.jdbc.spi.SqlExceptionHelper" level="OFF"/>
The instruction: level="OFF" tells Logback to disable all log output for a given logger.
In your logback.xml configuration adding the following element should work
<logger name="org.hibernate.engine.jdbc.spi.SqlExceptionHelper" level="OFF"/>
I can't find a way to stop warnings from PDFBox I am using in a psring boot application. For example:
2019-10-01 16:53:51.021 WARN 24564 --- [nio-8443-exec-2] o.a.pdfbox.pdmodel.font.PDType0Font : No Unicode mapping for CID+4 (4) in font Calibri-Bold
2019-10-01 16:53:51.022 WARN 24564 --- [nio-8443-exec-2] o.a.pdfbox.pdmodel.font.PDCIDFontType2 : Failed to find a character mapping for 4 in Calibri-Bold
2019-10-01 16:53:51.022 WARN 24564 --- [nio-8443-exec-2] o.a.pdfbox.pdmodel.font.PDCIDFontType2 : Failed to find a character mapping for 4 in Calibri-Bold
I have tried:
In Application file:
static {
System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.NoOpLog");
java.util.logging.Logger.getLogger("org.apache.pdfbox").setLevel(java.util.logging.Level.OFF);
String[] loggers = {
"org.apache.pdfbox.util.PDFStreamEngine",
"org.apache.pdfbox.pdmodel.font.PDSimpleFont",
"org.apache.pdfbox.pdmodel.font.PDFont",
"org.apache.pdfbox.pdmodel.font.FontManager",
"org.apache.pdfbox.pdfparser.PDFObjectStreamParser",
"o.a.pdfbox.pdmodel.font.PDCIDFontType2",
"org.apache.pdfbox.pdmodel.font.PDCIDFontType2",
"o.a.pdfbox.pdmodel.font.PDType0Font",
"org.apache.pdfbox.pdmodel.font.PDType0Font",
"org.apache.pdfbox.pdmodel.font.PDType1Font"
};
for (String logger: loggers) {
org.apache.log4j.Logger logpdfengine = org.apache.log4j.Logger
.getLogger(logger);
logpdfengine.setLevel(org.apache.log4j.Level.OFF);
}
}
As parameter when running jar:
-Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.NoOpLog
-Dorg.slf4j.simpleLogger.defaultLogLevel=off
Within the PDFBox code, the log is set up using:
(import org.apache.commons.logging.LogFactory;)
private static final Log LOG = LogFactory.getLog(PDCIDFontType0.class);
LOG.warn("Found PFB but expected embedded CFF font " + fd.getFontName());
I've spent a long time trying a lot of things and trolled through the answers for similar questions in SO but not got anywhere.
This is the configuration file I ended up using. I didn't include any logging releated dependencies or add any exclusions to pdfbox dependency, just added this file to the folder containing the application.properties file.
Filename is logback-spring.xml
The flooding logger was copied from how to change log levels of 3rd party library in java
<property name="LOGS" value="./logs" />
<appender name="Console"
class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
</Pattern>
</layout>
</appender>
<appender name="RollingFile"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOGS}/spring-boot-logger.log</file>
<encoder
class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%d %p %C{1.} [%t] %m%n</Pattern>
</encoder>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily and when the file reaches 10 MegaBytes -->
<fileNamePattern>${LOGS}/archived/spring-boot-logger-%d{yyyy-MM-dd}.%i.log
</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<!-- LOG everything at INFO level -->
<root level="info">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</root>
<!-- LOG "com.baeldung*" at TRACE level -->
<logger name="org.apache" level="ERROR" additivity="false">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</logger>
<logger name="flooding logger" level="ERROR" additivity="false">
<appender-ref ref="Console"/>
Here's what I have been using in the "old" log4j log4j.properties file (you should migrate to log4j2):
log4j.logger.org.springframework=WARN
log4j.logger.org.apache.pdfbox.pdmodel.font.PDCIDFontType2=FATAL
In the "new" log4j2.xml I have this (the appenders are named STDOUT and A1):
<?xml version="1.0" encoding="UTF-8"?>
<!-- https://logging.apache.org/log4j/2.x/manual/configuration.html
https://logging.apache.org/log4j/2.x/manual/appenders.html
-->
<Configuration>
<Appenders>
....
....
</Appenders>
<Loggers>
<Logger name="org.springframework" level="warn" additivity="false">
<AppenderRef ref="STDOUT"/>
<AppenderRef ref="A1"/>
</Logger>
<Logger name="org.apache.pdfbox.pdmodel.font.PDCIDFontType2" level="fatal" additivity="false">
<AppenderRef ref="STDOUT"/>
<AppenderRef ref="A1"/>
</Logger>
<Root level="info">
<AppenderRef ref="STDOUT"/>
<AppenderRef ref="A1"/>
</Root>
</Loggers>
</Configuration>
I think this also should work for log4j2. I use this simple way of disabling logs from specific libraries in SpringBoot applications. You need just add it into the log4j2.xml file.
<Loggers>
<Root>
****** here is some AppenderRef *******
</Root>
<Logger name="o.a.pdfbox" level="off"/>
or
<Logger name="org.apache.pdfbox" level="off"/>
</Loggers>
I'm having a strange issue where log4j is correctly displaying all my log messages the console, but is only sending log messages to my graylog server that I am not writing (e.g. a library I'm using which writes to log.info will show up in graylog, but not any of the messages I write with log.info). What am I missing
Here's my logback-spring.xml
<configuration>
<contextName>test</contextName>
<jmxConfigurator/>
<springProfile name="dev, test">
<appender name="gelf" class="biz.paluch.logging.gelf.logback.GelfLogbackAppender">
<host>udp:localhost</host>
<port>5555</port>
<version>1.1</version>
<extractStackTrace>true</extractStackTrace>
<filterStackTrace>true</filterStackTrace>
<mdcProfiling>true</mdcProfiling>
<timestampPattern>yyyy-MM-dd HH:mm:ss,SSS</timestampPattern>
<maximumMessageSize>8192</maximumMessageSize>
<includeFullMdc>true</includeFullMdc>
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>INFO</level>
</filter>
</appender>
</springProfile>
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n
</Pattern>
</layout>
</appender>
<logger name="com.test" level="info" additivity="false">
<appender-ref ref="stdout" />
</logger>
<root level="INFO">
<appender-ref ref="gelf" />
<appender-ref ref="stdout" />
</root>
</configuration>
I'm instantiating my log by doing:
private static final Logger logger = LogManager.getLogger(MyClass.class);
And writing to my log:
logger.info("WHY CAN'T I SEE THIS IN MY GRAYLOG SERVER");
Edit:
Your are specifying that the loggers of the package com.test should only write to the stdout appender.
<logger name="com.test" level="info" additivity="false">
<appender-ref ref="stdout" />
</logger>
You should change it to:
<logger name="com.test" level="info" />
Make sure that you are running your app with the matching profile for your gelf appender.
In my application I use Java, Hibernate.
Logging : I use logback.xml
Can anyone suggest if there is a way to disable the logs from the below specific class from Hibernate jar.
LOGGER to be removed from the specific class : ERROR o.h.e.jdbc.spi.SqlExceptionHelper
logback.xml:
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n
</Pattern>
</layout>
</appender>
<logger name="org.springframework" level="error"
additivity="false">
<appender-ref ref="STDOUT" />
</logger>
<root level="error">
<appender-ref ref="STDOUT" />
</root>
</configuration>
Add the following to your logback.xml configuration file:
<logger name="org.hibernate.engine.jdbc.spi.SqlExceptionHelper" level="OFF"/>
The instruction: level="OFF" tells Logback to disable all log output for a given logger.
In your logback.xml configuration adding the following element should work
<logger name="org.hibernate.engine.jdbc.spi.SqlExceptionHelper" level="OFF"/>
I am having following xml config for log4j with 3 appenders. And want to configure logger the following way:
All messages more than INFO are written to STDOUT and global log FILE appenders
But for some class Oauth I want to have extra log file OAUTHFILE
Some classes are filtered and write messages to LOG only on error level this can be achieved by
<logger name="application" level="ERROR" />
some classes are filtered and write messages to its own log file. This is also solved with additivity equal false flag.
<logger name="MapActor" level="DEBUG" additivity="false">
<appender-ref ref="MAPACTORFILE" />
</logger>
But how can I solve the 2nd problem. The folowing configuration produces debug and error messages in STDOUT and! in OAUTHFILE
<configuration>
...
<appender name="STDOUT" ...></appender>
<appender name="FILE" ...>
</appender>
<appender name="OAUTHFILE" ...>
</appender>
...
<logger name="controllers.OAuth" level="DEBUG" additivity="false">
<appender-ref ref="OAUTHFILE" />
</logger>
<root level="INFO">
<appender-ref ref="STDOUT" />
<appender-ref ref="FILE" />
</root>
</configuration>
Actually I have found the solution for second task. I should make 2 STDOUT and FILE appenders - one for general logging and the second one with filtering
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} %coloredLevel %cyan(%logger{15}) %message%n%xException{5}</pattern>
</encoder>
</appender>
<appender name="STDOUTERR" class="ch.qos.logback.core.ConsoleAppender">
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>WARN</level>
</filter>
<encoder>
<pattern>%d{HH:mm:ss.SSS} %coloredLevel %cyan(%logger{15}) %message%n%xException{5}</pattern>
</encoder>
</appender>
And use the second as extra appender-ref for classes that should produce error log to general stdout like here:
<logger name="MapActor" level="DEBUG" additivity="false">
<appender-ref ref="MAPACTORFILEAPPENDER" />
<appender-ref ref="STDOUTERR" />
</logger>