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Posted to log4j-dev@logging.apache.org by "Zilong Song (JIRA)" <ji...@apache.org> on 2017/03/05 17:50:32 UTC
[jira] [Created] (LOG4J2-1838) Add support for appending common
suffix to each line of throwable stack trace
Zilong Song created LOG4J2-1838:
-----------------------------------
Summary: Add support for appending common suffix to each line of throwable stack trace
Key: LOG4J2-1838
URL: https://issues.apache.org/jira/browse/LOG4J2-1838
Project: Log4j 2
Issue Type: New Feature
Components: Pattern Converters
Affects Versions: 2.8.1
Reporter: Zilong Song
Fix For: 2.8.2
Add support for appending common suffix to each line of throwable stack trace. The suffix can be configured by patterns just like patterns used elsewhere.
For example, pattern {{%xEx{suffix(- %mdc{key})}}} will append a string generated by pattern {{- }} and pattern {{%mdc{key}}}.
But throwable patterns will be automatically ignored, because they will make the rendered result confusing. So pattern {{%xEx{suffix(- %rEx%mdc{key})}}} has the same effect with {{%xEx{suffix(- %mdc{key})}}}, as if the nested {{%rEx}} has never appeared.
With the common suffix, the stack trace is as following: (with pattern {{suffix(- %mdc{key})}}, and MDC value {{test mdc suffix}} to {{key}})
{{
java.lang.IllegalArgumentException: IllegalArgument - test mdc suffix
at org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverterTest.testSuffixFromNormalPattern(ExtendedThrowablePatternConverterTest.java:48) [test-classes/:?] - test mdc suffix
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91] - test mdc suffix
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_91] - test mdc suffix
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_91] - test mdc suffix
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_91] - test mdc suffix
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12] - test mdc suffix
at org.junit.runner.JUnitCore.run(JUnitCore.java:137) [junit-4.12.jar:4.12] - test mdc suffix
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) [junit-rt.jar:?] - test mdc suffix
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51) [junit-rt.jar:?] - test mdc suffix
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237) [junit-rt.jar:?] - test mdc suffix
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) [junit-rt.jar:?] - test mdc suffix
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91] - test mdc suffix
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_91] - test mdc suffix
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_91] - test mdc suffix
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_91] - test mdc suffix
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:?] - test mdc suffix
Caused by: java.lang.NullPointerException: null pointer - test mdc suffix
at org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverterTest.testSuffixFromNormalPattern(ExtendedThrowablePatternConverterTest.java:47) ~[test-classes/:?] - test mdc suffix
... 27 more - test mdc suffix
}}
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