THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Tuscany/TuscanyJava/DAS
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Java
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Overview/Improved
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logging
Logging Overview
Overview
- Tuscany DAS uses log4J as its logging mechanism. For more information and complete documentation on log4j, please visit their website (http://logging.apache.org/log4j/docs/
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- )
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Using
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log
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while
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contributting
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for
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Tuscany
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DAS
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code
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- While
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- contributing
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- to
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- DAS
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- code,
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- please
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- follow
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- the
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- following
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- guidelines
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- to
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- add
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- logging
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- to
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- your
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- class
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Instantiate
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- a
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- logger
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-
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- There
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- is
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- a
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- logger
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- factory
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- available
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- in
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- org.apache.tuscany.das.rdb.util
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- -
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- To
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- use
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- it
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- private
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- final
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- Logger
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- logger
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- =
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- LoggerFactory.INSTANCE.getLogger(MappingWrapper.class);
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-
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To
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instrument
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your
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code
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with
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logging
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capabilities
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- if(this.logger.isDebugEnabled())
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- this.logger.debug("your
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- debug
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- message");
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Note:
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As
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a
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performance
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enhancement,
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please
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surround
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your
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debug
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code
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with
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a
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check
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to
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see
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if
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debug
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is
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enabled
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or
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not.
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Configuring
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DAS
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logging
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(log4j)
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- Configuring
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- with
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- Tomcat
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There
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- are
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- two
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- ways
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- to
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- configure
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- log4j
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- in
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- Tomcat
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- :
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- -
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- Having
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- a
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- global
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- log4j.properties
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- inside
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- %CATALINA_HOME%\common\classes
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-
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- Having
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- a
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- global
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- log4j.properties
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- inside
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- your
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- own
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- web
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- app
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- at
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- WEB-INF\classes
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Sample
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log4j.properties
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#
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Set
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root
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logger
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level
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to
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DEBUG
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and
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its
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only
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appender
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to
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A1.
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log4j.rootLogger=INFO,
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A1
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#
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A1
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is
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set
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to
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be
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a
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ConsoleAppender.
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log4j.appender.A1=org.apache.log4j.ConsoleAppender
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#
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A1
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uses
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PatternLayout.
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| Wiki Markup |
|---|
log4j.appender.A1.layout=org.apache.log4j.PatternLayout log4j.appender.A1.layout.ConversionPattern=\[DAS RDB\] - %c |
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\{1\} |
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.%M (%L) : %m %n |
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#
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only
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messages
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of
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level
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WARN
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or
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above
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in
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the
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package
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com.foo.
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log4j.logger.org.apache.tuscany=OFF
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*
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*
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For
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further
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information,
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please
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follow
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the
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link
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:
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