Hi.
If you use tika as usual library (no OSGi) you can configure any slf4j
backend to log into a file. Before doing this you have to choose some of
them. I recommend to use either Apache log4j 1.2 or logback-classic. This
part of configuration can be found at wiki[1].
Configuring backend to log into file is backend-dependent. In case of log4j
you can create log4j.properties with something like this:
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ISO8601} %5p %t %c{2}:%L
- %m%n
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=log/filecrawler.log
log4j.appender.file.MaxFileSize=100MB
log4j.appender.file.MaxBackupIndex=2
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ISO8601} %5p %t %c{2}:%L -
%m%n
log4j.rootLogger=WARN, file, stdout
# for pdfbox
log4j.logger.org.apache.pdfbox.pdmodel.font=FATAL
For logback you can create logback.xml something like this:
<?xml version="1.0"?>
<configuration>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %5p ${PID:- } --- [%15.15t{14}]
%-40.40logger{39} : %m%n</pattern>
</encoder>
</appender>
<appender name="FILE"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>log/filecrawler.log</file>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>log/filecrawler.log.%d{yyyy-MM-dd}</fileNamePattern>
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %5p ${PID:- } --- [%15.15t{14}]
%-40.40logger{39} : %m%n</pattern>
</encoder>
</appender>
<root level="WARN">
<appender-ref ref="CONSOLE" />
<appender-ref ref="FILE" />
</root>
<logger name="org.apache.pdfbox.pdmodel.font" level="FATAL"/>
</configuration>
Either log4j.properties or logback.xml should be at root of classpath when
application is executed (or path to them should be set via java system
properties). In case of building with maven drop them to src/main/resources.
[1]: https://wiki.apache.org/tika/Logging
пт, 10 июля 2015 г. в 18:36, Gabriele Lanaro <[email protected]>:
> Hi, I would like to know if it is possible to configure logging in tika,
> for example I'd like to log to a file instead of standard output.
> Redirection is not an option because I'm using tika as a library for
> another application, and I'd like to log other parts of the application.
>
> Is there an easy way to configure tika logging globally?
>
> Thanks,
> Gabriele
>
--
Best regards,
Konstantin Gribov
