Awesome, thanks. I needed a little bit more because of my java noobness, but I
was able to figure that out. Looks like I needed the -d on the javac command
so that it created the appropriate directory structure for my .class file based
on the package name. Then things started working!!
Now I can filter on just a single level with my LevelRangeFilter.
Thanks for all the help. Next I have to get the latest log4j installed on
fedora 21 so that I can verify custom levels work.
Nick
> Date: Fri, 28 Aug 2015 07:51:32 +0900
> Subject: Re: plugins
> From: remko.po...@gmail.com
> To: log4j-user@logging.apache.org
>
> I think you made a mistake there: your config says
>
> <Configuration status="trace" verbose="true" packages="LevelRangeFilter">
>
>
> But your code does not have a package declaration at the top. This means it
> is in the default (nameless) package.
> Change your code to start with:
>
> package com.mycomp.pluginpackage;
> import ...
>
> And change your config to
> <Configuration status="trace" packages="com.mycomp.pluginpackage">
>
> Using the plugin class name in the packages attribute won't work.
>
> On Friday, August 28, 2015, Nicholas Duane <nic...@msn.com> wrote:
>
> > I tried that. I created a jar, I think correctly, from my
> > LevelRangeFilter.class file. I added that to the packages attribute, as
> > you can see in the config I previously sent. It still doesn't work.
> >
> > Thanks,
> > Nick
> >
> > > Subject: Re: plugins
> > > From: remko.po...@gmail.com <javascript:;>
> > > Date: Fri, 28 Aug 2015 07:25:35 +0900
> > > To: log4j-user@logging.apache.org <javascript:;>
> > >
> > > Perhaps the simplest thing to do is to add the packages attribute to
> > your log4j2.xml configuration file. Set the value to the package of your
> > custom plugin.
> > >
> > > <Configuration status="trace" packages="com.mycomp.pluginpackage">
> > > ...
> > >
> > > Remko
> > >
> > > Sent from my iPhone
> > >
> > > > On 2015/08/28, at 6:42, Nicholas Duane <nic...@msn.com <javascript:;>>
> > wrote:
> > > >
> > > >
> > > >
> > > >
> > > > I don't think the implementation is the issue, though if/when I get my
> > plugin loading and it doesn't work I will certainly try to compare against
> > what Gary wrote. Right now I'm just trying to figure out how to get my
> > plugin loaded. I've got my class file, LevelRangeFilter.java which I
> > compiled to a .class file. It resides in the same directory as my
> > HelloWorld.class file which contains my "main". I was hoping my plugin
> > would get loaded but it doesn't seem to be. What's the easiest way for me
> > to get it loaded? Right now when I run my program I'm seeing the following
> > error from log4net:
> > > >
> > > > 2015-08-27 15:23:09,682 ERROR File contains an invalid element or
> > attribute "LevelRangeFilter"
> > > >
> > > > Here is my config:
> > > >
> > > > <?xml version="1.0" encoding="UTF-8"?>
> > > > <Configuration status="trace" verbose="true"
> > packages="LevelRangeFilter">
> > > > <CustomLevels>
> > > > <CustomLevel name="INFOM1" intLevel="399"/>
> > > > <CustomLevel name="INFOP1" intLevel="401"/>
> > > > </CustomLevels>
> > > > <Appenders>
> > > > <File name="info" fileName="info.log">
> > > > <PatternLayout>
> > > > <Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
> > > > </PatternLayout>
> > > > <LevelRangeFilter minLevel="INFO" maxLevel="INFO"
> > onMatch="ACCEPT"/>
> > > > </File>
> > > > </Appenders>
> > > > <Loggers>
> > > > <Logger name="HelloWorld" level="ALL">
> > > > <AppenderRef ref="info"/>
> > > > </Logger>
> > > > <Root>
> > > > </Root>
> > > > </Loggers>
> > > > </Configuration>
> > > >
> > > > Thanks,
> > > > Nick
> > > >
> > > >> Subject: Re: plugins
> > > >> From: ralph.go...@dslextreme.com <javascript:;>
> > > >> Date: Thu, 27 Aug 2015 14:20:28 -0700
> > > >> To: log4j-user@logging.apache.org <javascript:;>
> > > >>
> > > >> Can’t you just compare what you wrote to what Gary wrote? If you
> > build your project then it should get packaged in a jar and automatically
> > have the file Log4j uses to quickly load the plugin.
> > > >>
> > > >> Ralph
> > > >>
> > > >>> On Aug 27, 2015, at 12:50 PM, Nicholas Duane <nic...@msn.com
> > <javascript:;>> wrote:
> > > >>>
> > > >>> Based on your previous comments I assume one would show up
> > out-of-the-box at some point. Of course I need mine now so unfortunately I
> > have to write one.
> > > >>>
> > > >>> Any input on my questions below?
> > > >>>
> > > >>> Thanks,
> > > >>> Nick
> > > >>>
> > > >>>> Date: Thu, 27 Aug 2015 12:20:07 -0700
> > > >>>> Subject: Re: plugins
> > > >>>> From: garydgreg...@gmail.com <javascript:;>
> > > >>>> To: log4j-user@logging.apache.org <javascript:;>
> > > >>>>
> > > >>>> Note that I wrote such a filter, which is under review ATM here:
> > > >>>>
> > > >>>> - https://issues.apache.org/jira/browse/LOG4J2-1106
> > > >>>> - https://issues.apache.org/jira/browse/LOG4J2-1105
> > > >>>>
> > > >>>> Gary
> > > >>>>
> > > >>>>> On Thu, Aug 27, 2015 at 11:51 AM, Nicholas Duane <nic...@msn.com
> > <javascript:;>> wrote:
> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>> I've got a couple questions regarding plugins I'm hoping someone
> > might be
> > > >>>>> able to help me with. I checked the docs and it's still not quite
> > clear.
> > > >>>>>
> > > >>>>> 1. I'm unsure what to set printObject to in my Plugin annotation.
> > From
> > > >>>>> http://logging.apache.org/log4j/2.x/manual/extending.html it says:
> > > >>>>>
> > > >>>>> "Specifying the printObject attribute with a value of "true"
> > indicates
> > > >>>>> that a call to toString will format the arguments to the filter as
> > the
> > > >>>>> configuration is being processed."
> > > >>>>>
> > > >>>>> which unfortunately doesn't clear things up any. I looked at the
> > docs for
> > > >>>>> printObject and that doesn't say anything other than it's a
> > Boolean and its
> > > >>>>> default is false.
> > > >>>>>
> > > >>>>> 2. I created a LevelRangeFiler and I'm trying to figure out how to
> > get it
> > > >>>>> loaded by log4j. I read over the instructions on plugins located
> > at
> > > >>>>> http://logging.apache.org/log4j/2.x/manual/plugins.html but since
> > I'm a
> > > >>>>> java noob I'm still a bit lost. I'm wondering, if I just have a
> > .java
> > > >>>>> class which I compile to a .class file, can that be used? If so,
> > how?
> > > >>>>>
> > > >>>>> Below is the filter I wrote based on looking at the threshold
> > filter
> > > >>>>> example at
> > http://logging.apache.org/log4j/2.x/manual/extending.html.
> > > >>>>>
> > > >>>>> import org.apache.logging.log4j.core.filter.AbstractFilter;
> > > >>>>> import org.apache.logging.log4j.core.Filter;
> > > >>>>> import org.apache.logging.log4j.core.config.plugins.Plugin;
> > > >>>>> import
> > org.apache.logging.log4j.core.config.plugins.PluginAttribute;
> > > >>>>> import org.apache.logging.log4j.core.config.plugins.PluginFactory;
> > > >>>>> import org.apache.logging.log4j.Level;
> > > >>>>> import org.apache.logging.log4j.core.LogEvent;
> > > >>>>> import org.apache.logging.log4j.core.Logger;
> > > >>>>> import org.apache.logging.log4j.Marker;
> > > >>>>> import org.apache.logging.log4j.message.Message;
> > > >>>>>
> > > >>>>> @Plugin(name="LevelRangeFilter", category="Core",
> > elementType="filter",
> > > >>>>> printObject=true)
> > > >>>>> public class LevelRangeFilter extends AbstractFilter
> > > >>>>> {
> > > >>>>> private final Level minLevel;
> > > >>>>> private final Level maxLevel;
> > > >>>>>
> > > >>>>> public LevelRangeFilter(Level minLevel, Level maxLevel,
> > > >>>>> Filter.Result onMatch, Filter.Result onMismatch)
> > > >>>>> {
> > > >>>>> super(onMatch, onMismatch);
> > > >>>>> this.minLevel = minLevel;
> > > >>>>> this.maxLevel = maxLevel;
> > > >>>>> }
> > > >>>>>
> > > >>>>> private Result filter(Level level)
> > > >>>>> {
> > > >>>>> if (level.isMoreSpecificThan(this.minLevel) &&
> > > >>>>> level.isLessSpecificThan(this.maxLevel))
> > > >>>>> {
> > > >>>>> return this.onMatch;
> > > >>>>> }
> > > >>>>> return this.onMismatch;
> > > >>>>> }
> > > >>>>>
> > > >>>>> public Filter.Result filter(Logger logger, Level level,
> > > >>>>> Marker marker, String msg, Object[] params)
> > > >>>>> {
> > > >>>>> return filter(level);
> > > >>>>> }
> > > >>>>>
> > > >>>>> public Filter.Result filter(Logger logger, Level level,
> > > >>>>> Marker marker, Object msg, Throwable t)
> > > >>>>> {
> > > >>>>> return filter(level);
> > > >>>>> }
> > > >>>>>
> > > >>>>> public Filter.Result filter(Logger logger, Level level,
> > > >>>>> Marker marker, Message msg, Throwable t)
> > > >>>>> {
> > > >>>>> return filter(level);
> > > >>>>> }
> > > >>>>>
> > > >>>>> public Filter.Result filter(LogEvent event)
> > > >>>>> {
> > > >>>>> return filter(event.getLevel());
> > > >>>>> }
> > > >>>>>
> > > >>>>> @PluginFactory
> > > >>>>> public static LevelRangeFilter createFilter(
> > > >>>>> @PluginAttribute(value="minLevel",
> > > >>>>> defaultString="DEBUG") Level minLevel,
> > > >>>>> @PluginAttribute(value="maxLevel",
> > > >>>>> defaultString="FATAL") Level maxLevel,
> > > >>>>> @PluginAttribute(value="onMatch",
> > > >>>>> defaultString="NEUTRAL") Result onMatch,
> > > >>>>> @PluginAttribute(value="onMismatch",
> > > >>>>> defaultString="DENY") Result onMismatch)
> > > >>>>> {
> > > >>>>> return new LevelRangeFilter(minLevel, maxLevel, onMatch,
> > onMismatch);
> > > >>>>> }
> > > >>>>> }
> > > >>>>>
> > > >>>>> Thanks,
> > > >>>>> Nick
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>> --
> > > >>>> E-Mail: garydgreg...@gmail.com <javascript:;> | ggreg...@apache.org
> > <javascript:;>
> > > >>>> Java Persistence with Hibernate, Second Edition
> > > >>>> <http://www.manning.com/bauer3/>
> > > >>>> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> > > >>>> Spring Batch in Action <http://www.manning.com/templier/>
> > > >>>> Blog: http://garygregory.wordpress.com
> > > >>>> Home: http://garygregory.com/
> > > >>>> Tweet! http://twitter.com/GaryGregory
> > > >>
> > > >>
> > > >>
> > > >> ---------------------------------------------------------------------
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> > <javascript:;>
> > > >> For additional commands, e-mail: log4j-user-h...@logging.apache.org
> > <javascript:;>
> > > >
> > > >
> > >
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> > <javascript:;>
> > > For additional commands, e-mail: log4j-user-h...@logging.apache.org
> > <javascript:;>
> > >
> >
