[logback-user] Filter does not work on tomcat

Thu Jun 17 19:22:34 CEST 2010

I forgot the negation. The equivalent groovy expression would be

!(e.mdc?.get('source')?.isEmpty())

On 17/06/2010 7:04 PM, Ceki Gülcü wrote:
>
> I think your guess about the mdc variable being null is
> correct. You should change the expression to:
>
> (mdc != null) && (mdc.get("source") != null) &&
> !((String)mdc.get("source")).isEmpty()
>
>
> Note that you can also write evaluator expressions in Groovy [1]. The
> equivalent expressions would be written
> "e.mdc?.get('source')?.isEmpty()". Note the use of '?.', the safe
> navigation operator, resulting in a much shorter expression.
>
> HTH,
>
> [1] http://logback.qos.ch/manual/filters.html#GEventEvaluator
>
> On 17/06/2010 5:36 PM, Sager, Patrick wrote:
>> Hello HTH
>>
>> I don't think that isEmpty() is the problem, as this method does exist
>> since Java 1.6.
>> Furthermore, when using an unknown method, janino throws a
>> corresponding exception. E.g.,
>> 17:32:25,398 |-ERROR in
>> ch.qos.logback.classic.boolex.JaninoEventEvaluator at 1064a6d - Could not
>> start evaluator with expression [((String)mdc.get("source").foe() !=
>> null)] org.codehaus.commons.compiler.CompileException: Line 2, Column
>> 31: A method named "foe" is not declared in any enclosing class nor
>> any supertype, nor through a static import
>> at org.codehaus.commons.compiler.CompileException: Line 2, Column 31:
>> A method named "foe" is not declared in any enclosing class nor any
>> supertype, nor through a static import
>> at at
>> org.codehaus.janino.UnitCompiler.compileError(UnitCompiler.java:9013)
>> at at
>> org.codehaus.janino.UnitCompiler.findIMethod(UnitCompiler.java:6548)
>> at at
>> org.codehaus.janino.UnitCompiler.compileGet2(UnitCompiler.java:3428)
>> ...
>>
>> Furthermore, the filter works correctly when running within my JUnit
>> tests.
>> My guess is, that mdc is null.
>> Do I somehow need to initialize it?
>>
>> Best regards
>> -- Patrick
>>
>>
>> -----Original Message-----
>> From: logback-user-bounces at qos.ch [mailto:logback-user-bounces at qos.ch]
>> On Behalf Of Ceki Gülcü
>> Sent: Thursday, June 17, 2010 5:16 PM
>> To: logback users list
>> Subject: Re: [logback-user] Filter does not work on tomcat
>>
>> Hello Patrick,
>>
>> It looks like there is a problem in the evaluator expression, that is
>> in (mdc.get("source") != null)&& !((String)mdc.get("source")).isEmpty()
>>
>> For one, isEmtpty() is not a java.lang.String method.
>>
>> HTH,
>>
>> On 17/06/2010 4:48 PM, Sager, Patrick wrote:
>>> Hello
>>>
>>> Thanks for your fast reply.
>>>
>>> I checked that janino.jar is deployed.
>>> However, when I add the statuslistener to the configuration file,
>>> logback writes the following exception:
>>>
>>> 16:39:24,539 |-ERROR in
>>> ch.qos.logback.core.filter.EvaluatorFilter at 151aa16 - Evaluator null
>>> threw an exception ch.qos.logback.core.boolex.EvaluationException:
>>> Evaluator [null] caused an exception
>>> at ch.qos.logback.core.boolex.EvaluationException: Evaluator
>>> [null] caused an exception
>>> at at
>>> ch.qos.logback.core.boolex.JaninoEventEvaluatorBase.evaluate(JaninoEvent
>>> EvaluatorBase.java:80)
>>> at at
>>> ch.qos.logback.core.filter.EvaluatorFilter.decide(EvaluatorFilter.java:6
>>> 5)
>>> at at
>>> ch.qos.logback.core.spi.FilterAttachableImpl.getFilterChainDecision(Filt
>>> erAttachableImpl.java:52)
>>> at at
>>> ch.qos.logback.core.UnsynchronizedAppenderBase.getFilterChainDecision(Un
>>> synchronizedAppenderBase.java:141)
>>> at at
>>> ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAp
>>> penderBase.java:86)
>>> at at
>>> ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(App
>>> enderAttachableImpl.java:64)
>>> at at
>>> ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:283)
>>> at at
>>> ch.qos.logback.classic.Logger.callAppenders(Logger.java:270)
>>> at at
>>> ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:471
>>> )
>>> at at
>>> ch.qos.logback.classic.Logger.filterAndLog_1(Logger.java:443)
>>> at at ch.qos.logback.classic.Logger.debug(Logger.java:536)
>>> at at
>>> com.roche.dp.rss.gateway.configuration.tools.LogManager.setLogSeverity(L
>>> ogManager.java:141)
>>> at at
>>> com.roche.dp.rss.gateway.configuration.tools.LogManager.clearLog(LogMana
>>> ger.java:88)
>>> at at
>>> com.roche.dp.rss.gateway.userinterfaces.backing.Log.purgeLog(Log.java:34
>>> )
>>> at at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>>> Method)
>>> at at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
>>> a:57)
>>> at at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
>>> Impl.java:43)
>>> at at java.lang.reflect.Method.invoke(Method.java:616)
>>> at at
>>> org.apache.el.parser.AstValue.invoke(AstValue.java:191)
>>> at at
>>> org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
>>> at at
>>> com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:
>>> 68)
>>> at at
>>> javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(Method
>>> BindingMethodExpressionAdapter.java:88)
>>> at at
>>> com.sun.faces.application.ActionListenerImpl.processAction(ActionListene
>>> rImpl.java:102)
>>> at at
>>> javax.faces.component.UICommand.broadcast(UICommand.java:387)
>>> at at
>>> org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:324)
>>> at at
>>> org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:29
>>> 9)
>>> at at
>>> org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:256)
>>> at at
>>> org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java
>>> :469)
>>> at at
>>> com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplication
>>> Phase.java:82)
>>> at at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
>>> at at
>>> com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
>>> at at
>>> javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
>>> at at
>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
>>> tionFilterChain.java:290)
>>> at at
>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
>>> erChain.java:206)
>>> at at
>>> org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
>>> at at
>>> org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
>>> at at
>>> org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter
>>> .java:388)
>>> at at
>>> org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
>>> at at
>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
>>> tionFilterChain.java:235)
>>> at at
>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
>>> erChain.java:206)
>>> at at
>>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
>>> e.java:233)
>>> at at
>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
>>> e.java:191)
>>> at at
>>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
>>> :127)
>>> at at
>>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
>>> :102)
>>> at at
>>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
>>> java:109)
>>> at at
>>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
>>> 98)
>>> at at
>>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:85
>>> 2)
>>> at at
>>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
>>> Http11Protocol.java:588)
>>> at at
>>> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
>>> at at java.lang.Thread.run(Thread.java:636)
>>> Caused by: java.lang.reflect.InvocationTargetException
>>> at at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>>> Method)
>>> at at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
>>> a:57)
>>> at at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
>>> Impl.java:43)
>>> at at java.lang.reflect.Method.invoke(Method.java:616)
>>> at at
>>> org.codehaus.janino.ScriptEvaluator.evaluate(ScriptEvaluator.java:931)
>>> at at
>>> org.codehaus.janino.ScriptEvaluator.evaluate(ScriptEvaluator.java:349)
>>> at at
>>> ch.qos.logback.core.boolex.JaninoEventEvaluatorBase.evaluate(JaninoEvent
>>> EvaluatorBase.java:73)
>>> at ... 49 common frames omitted
>>> Caused by: java.lang.NullPointerException
>>> at at SC.eval0(SC.java:2)
>>> at ... 56 common frames omitted
>>>
>>> P.S.
>>> Sorry about the format of the mail. I'm currently not receiving the
>>> mails from this group in my inbox and therefore, I had to fetch it from
>>> the archive.
>>>
>>>
>>> rom ceki at qos.ch Wed Jun 16 17:13:47 2010
>>> From: ceki at qos.ch (=?ISO-8859-1?Q?Ceki_G=FClc=FC?=)
>>> Date: Wed, 16 Jun 2010 17:13:47 +0200
>>> Subject: [logback-user] Filter does not work on tomcat
>>> In-Reply-To:
>>> <912DB9C0846F3042A4BB7FDA0962FCA61037C64F at rkamsem1.emea.roche.com>
>>> References:
>>> <912DB9C0846F3042A4BB7FDA0962FCA61037C64F at rkamsem1.emea.roche.com>
>>> Message-ID:<4C18EA2B.20104 at qos.ch>
>>>
>>>
>
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>
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