SiftingAppender does not substitute variable value inside sift
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Key: LBCLASSIC-312
URL: http://jira.qos.ch/browse/LBCLASSIC-312
Project: logback-classic
Issue Type: Bug
Components: appender
Affects Versions: 1.0.0
Environment: Ubuntu 11.04, Eclipse 3.7
Reporter: Dmitrius Listo
Assignee: Logback dev list
Faced a probable bug (at least, did not find any mention about such issue at
manual/google/other bugs in category).
Brief logging configuration description:
I have a property defined in my logback configuration.
There is a property with log file location defined:
<property name="LOG_HOME" value="/tmp/aicore" />
Also, I have ConsoleAppender and two RollingFileAppender appenders, attached to
root logger. RollingFileAppender configuration contains LOG_HOME variable in
path and substitution is done without any issues, log file is created and
updated.
But when I add SiftingAppender (log files are created on per-threadId basis),
that contains FileAppender in it's sift section, variable value is not
substituted.
Here is the logback log fragment, generated using OnConsoleStatusListener:
22:11:27,396 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About
to instantiate appender of type [ch.qos.logback.core.FileAppender]
22:11:27,396 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming
appender as [FILE-server]
22:11:27,398 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA
- Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder]
for [encoder] property
22:11:27,400 |-INFO in ch.qos.logback.core.FileAppender[FILE-server] - File
property is set to [LOG_HOME_IS_UNDEFINED/thread-server.log]
Note the "LOG_HOME_IS_UNDEFINED/thread-server.log" value. As a result, no any
sift log file is created in expected location. When I substitute ${LOG_HOME}
value manually, everything works well.
Below is my SiftingAppender config:
<appender name="SIFT"
class="ch.qos.logback.classic.sift.SiftingAppender">
<discriminator
class="ch.qos.logback.classic.sift.MDCBasedDiscriminator">
<key>threadId</key>
<defaultValue>unclassified</defaultValue>
</discriminator>
<sift>
<appender name="FILE-${threadId}"
class="ch.qos.logback.core.FileAppender">
<file>${LOG_HOME}/thread-${threadId}.log</file>
<append>false</append>
<encoder>
<pattern>%d [%thread] %level %mdc %logger{35} -
%msg%n</pattern>
</encoder>
</appender>
</sift>
</appender>
Sorry if bug report is not formed perfectly, I have not much expertise yet :)
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