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Posted to user@karaf.apache.org by matthiaw <mi...@web.de> on 2019/05/30 10:45:36 UTC
Log4j2 in osgi-bundle
I want to use log4j2 in my osgi-bundle for karaf. When i add log4j into the
pom, compile it and load it into karaf, then the exception
Unresolved requirements: [[... [56](R 56.0)] osgi.wiring.package;
(&(osgi.wiring.package=*org.apache.logging.log4j*)(version>=2.11.0)(!(version>=3.0.0)))]
is thrown. This must be, because i not added something to
maven-bundle-plugin. Bot when i add there
<Private-Package>..., org.apache.logging.log4j*</Private-Package> or
<Private-Package>..., *</Private-Package>
i get the exception
Unresolved requirements: [[... [57](R 57.0)] osgi.wiring.package;
(osgi.wiring.package=*com.conversantmedia.util.concurrent*)]
Looking for the package gets me to adding
<dependency>
<groupId>com.conversantmedia</groupId>
<artifactId>disruptor</artifactId>
<version>1.2.0</version>
</dependency>
to the pom. Now i get
Unresolved requirements: [[... [58](R 58.0)] osgi.wiring.package;
(osgi.wiring.package=*com.fasterxml.jackson.annotation*)]
Is it necessary that i add all depended libraries for log4j manually to the
pom to get a working bundle? Or is there a better way?
I am new to osgi and karaf. How can i add log4j accurate in a osgi-bundle,
so its log is shown in karaf log:display?
Regards,
Matthias
--
Sent from: http://karaf.922171.n3.nabble.com/Karaf-User-f930749.html
Re: Log4j2 in osgi-bundle
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Hi,
OK, I think you need some "background" about OSGi.
To avoid to pollute the mailing list, please ping me in private message,
I will explain deeply.
Regards
JB
On 30/05/2019 15:20, Matthias Wegner wrote:
> SLF4J
>
> =========
>
> Adding to the pom
>
> <dependency>
> <groupId>org.slf4j</groupId>
> <artifactId>slf4j-api</artifactId>
> <version>1.7.26</version>
> </dependency>
>
> and using in java logger with private static final Logger logger =
> LoggerFactory.getLogger(MethodHandles.lookup().lookupClass().getSimpleName());
>
>
> works like charm in the bundle, thanks.
>
>
> LOG4J
>
> =========
>
> Adding to the pom
>
> <dependency>
> <groupId>org.ops4j.pax.logging</groupId>
> <artifactId>pax-logging-log4j2</artifactId>
> <version>1.10.1</version>
> </dependency>
>
> <Import-Package>
> org.apache.logging.log4j*;version="[2,3)",
>
> *
>
> </Import-Package>
>
> is also working.
>
> But i dont understand what information i get when i run in karaf the
> command package:exports|grep -i log4j. Also, i dont understand what
> [2,3) means?
>
>
> But i have two working solutions with slf4j of log4j that work now.
> Perfect, thanks.
>
> Regards,
>
> M.
>
>
> Am 30.05.19 um 13:26 schrieb Jean-Baptiste Onofré:
>> Hi,
>>
>> you should not embed log4j as private: you should import the log4j
>> packages provided by pax-logging.
>>
>> However, the log4j2 packages versions is 2.8.2, not 2.11.0.
>>
>> So, I recommend to use Import-Package with [2,3).
>>
>> You can see the packages using package:exports|grep -i log4j command.
>>
>> Regards
>> JB
>>
>> On 30/05/2019 12:45, matthiaw wrote:
>>> I want to use log4j2 in my osgi-bundle for karaf. When i add log4j
>>> into the
>>> pom, compile it and load it into karaf, then the exception
>>>
>>> Unresolved requirements: [[... [56](R 56.0)] osgi.wiring.package;
>>> (&(osgi.wiring.package=*org.apache.logging.log4j*)(version>=2.11.0)(!(version>=3.0.0)))]
>>>
>>>
>>> is thrown. This must be, because i not added something to
>>> maven-bundle-plugin. Bot when i add there
>>>
>>> <Private-Package>..., org.apache.logging.log4j*</Private-Package> or
>>> <Private-Package>..., *</Private-Package>
>>>
>>> i get the exception
>>>
>>> Unresolved requirements: [[... [57](R 57.0)] osgi.wiring.package;
>>> (osgi.wiring.package=*com.conversantmedia.util.concurrent*)]
>>>
>>> Looking for the package gets me to adding
>>>
>>> <dependency>
>>> <groupId>com.conversantmedia</groupId>
>>> <artifactId>disruptor</artifactId>
>>> <version>1.2.0</version>
>>> </dependency>
>>>
>>> to the pom. Now i get
>>>
>>> Unresolved requirements: [[... [58](R 58.0)] osgi.wiring.package;
>>> (osgi.wiring.package=*com.fasterxml.jackson.annotation*)]
>>>
>>> Is it necessary that i add all depended libraries for log4j manually
>>> to the
>>> pom to get a working bundle? Or is there a better way?
>>>
>>> I am new to osgi and karaf. How can i add log4j accurate in a
>>> osgi-bundle,
>>> so its log is shown in karaf log:display?
>>>
>>> Regards,
>>> Matthias
>>>
>>>
>>>
>>>
>>> --
>>> Sent from: http://karaf.922171.n3.nabble.com/Karaf-User-f930749.html
>>>
> --
> Matthias Wegner
> Hauptstrasse 41a
> 79199 Kirchzarten
> Tel.: 07661 9091000
> Mobil: 0716 47893182
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Log4j2 in osgi-bundle
Posted by Matthias Wegner <mi...@web.de>.
SLF4J
=========
Adding to the pom
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.26</version>
</dependency>
and using in java logger with private static final Logger logger =
LoggerFactory.getLogger(MethodHandles.lookup().lookupClass().getSimpleName());
works like charm in the bundle, thanks.
LOG4J
=========
Adding to the pom
<dependency>
<groupId>org.ops4j.pax.logging</groupId>
<artifactId>pax-logging-log4j2</artifactId>
<version>1.10.1</version>
</dependency>
<Import-Package>
org.apache.logging.log4j*;version="[2,3)",
*
</Import-Package>
is also working.
But i dont understand what information i get when i run in karaf the
command package:exports|grep -i log4j. Also, i dont understand what
[2,3) means?
But i have two working solutions with slf4j of log4j that work now.
Perfect, thanks.
Regards,
M.
Am 30.05.19 um 13:26 schrieb Jean-Baptiste Onofré:
> Hi,
>
> you should not embed log4j as private: you should import the log4j
> packages provided by pax-logging.
>
> However, the log4j2 packages versions is 2.8.2, not 2.11.0.
>
> So, I recommend to use Import-Package with [2,3).
>
> You can see the packages using package:exports|grep -i log4j command.
>
> Regards
> JB
>
> On 30/05/2019 12:45, matthiaw wrote:
>> I want to use log4j2 in my osgi-bundle for karaf. When i add log4j into the
>> pom, compile it and load it into karaf, then the exception
>>
>> Unresolved requirements: [[... [56](R 56.0)] osgi.wiring.package;
>> (&(osgi.wiring.package=*org.apache.logging.log4j*)(version>=2.11.0)(!(version>=3.0.0)))]
>>
>> is thrown. This must be, because i not added something to
>> maven-bundle-plugin. Bot when i add there
>>
>> <Private-Package>..., org.apache.logging.log4j*</Private-Package> or
>> <Private-Package>..., *</Private-Package>
>>
>> i get the exception
>>
>> Unresolved requirements: [[... [57](R 57.0)] osgi.wiring.package;
>> (osgi.wiring.package=*com.conversantmedia.util.concurrent*)]
>>
>> Looking for the package gets me to adding
>>
>> <dependency>
>> <groupId>com.conversantmedia</groupId>
>> <artifactId>disruptor</artifactId>
>> <version>1.2.0</version>
>> </dependency>
>>
>> to the pom. Now i get
>>
>> Unresolved requirements: [[... [58](R 58.0)] osgi.wiring.package;
>> (osgi.wiring.package=*com.fasterxml.jackson.annotation*)]
>>
>> Is it necessary that i add all depended libraries for log4j manually to the
>> pom to get a working bundle? Or is there a better way?
>>
>> I am new to osgi and karaf. How can i add log4j accurate in a osgi-bundle,
>> so its log is shown in karaf log:display?
>>
>> Regards,
>> Matthias
>>
>>
>>
>>
>> --
>> Sent from: http://karaf.922171.n3.nabble.com/Karaf-User-f930749.html
>>
--
Matthias Wegner
Hauptstrasse 41a
79199 Kirchzarten
Tel.: 07661 9091000
Mobil: 0716 47893182
Re: Log4j2 in osgi-bundle
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Hi,
you should not embed log4j as private: you should import the log4j
packages provided by pax-logging.
However, the log4j2 packages versions is 2.8.2, not 2.11.0.
So, I recommend to use Import-Package with [2,3).
You can see the packages using package:exports|grep -i log4j command.
Regards
JB
On 30/05/2019 12:45, matthiaw wrote:
> I want to use log4j2 in my osgi-bundle for karaf. When i add log4j into the
> pom, compile it and load it into karaf, then the exception
>
> Unresolved requirements: [[... [56](R 56.0)] osgi.wiring.package;
> (&(osgi.wiring.package=*org.apache.logging.log4j*)(version>=2.11.0)(!(version>=3.0.0)))]
>
> is thrown. This must be, because i not added something to
> maven-bundle-plugin. Bot when i add there
>
> <Private-Package>..., org.apache.logging.log4j*</Private-Package> or
> <Private-Package>..., *</Private-Package>
>
> i get the exception
>
> Unresolved requirements: [[... [57](R 57.0)] osgi.wiring.package;
> (osgi.wiring.package=*com.conversantmedia.util.concurrent*)]
>
> Looking for the package gets me to adding
>
> <dependency>
> <groupId>com.conversantmedia</groupId>
> <artifactId>disruptor</artifactId>
> <version>1.2.0</version>
> </dependency>
>
> to the pom. Now i get
>
> Unresolved requirements: [[... [58](R 58.0)] osgi.wiring.package;
> (osgi.wiring.package=*com.fasterxml.jackson.annotation*)]
>
> Is it necessary that i add all depended libraries for log4j manually to the
> pom to get a working bundle? Or is there a better way?
>
> I am new to osgi and karaf. How can i add log4j accurate in a osgi-bundle,
> so its log is shown in karaf log:display?
>
> Regards,
> Matthias
>
>
>
>
> --
> Sent from: http://karaf.922171.n3.nabble.com/Karaf-User-f930749.html
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Log4j2 in osgi-bundle
Posted by "francois.papon" <fr...@openobject.fr>.
Hi,The easy way is to use slf4j.regards,FrancoisEnvoyé depuis mon smartphone Samsung Galaxy.
-------- Message d'origine --------De : matthiaw <mi...@web.de> Date : 30/05/2019 14:45 (GMT+04:00) À : user@karaf.apache.org Objet : Log4j2 in osgi-bundle I want to use log4j2 in my osgi-bundle for karaf. When i add log4j into thepom, compile it and load it into karaf, then the exceptionUnresolved requirements: [[... [56](R 56.0)] osgi.wiring.package;(&(osgi.wiring.package=*org.apache.logging.log4j*)(version>=2.11.0)(!(version>=3.0.0)))]is thrown. This must be, because i not added something tomaven-bundle-plugin. Bot when i add there<Private-Package>..., org.apache.logging.log4j*</Private-Package> or<Private-Package>..., *</Private-Package> i get the exceptionUnresolved requirements: [[... [57](R 57.0)] osgi.wiring.package;(osgi.wiring.package=*com.conversantmedia.util.concurrent*)]Looking for the package gets me to adding<dependency> <groupId>com.conversantmedia</groupId> <artifactId>disruptor</artifactId> <version>1.2.0</version></dependency>to the pom. Now i get Unresolved requirements: [[... [58](R 58.0)] osgi.wiring.package;(osgi.wiring.package=*com.fasterxml.jackson.annotation*)]Is it necessary that i add all depended libraries for log4j manually to thepom to get a working bundle? Or is there a better way?I am new to osgi and karaf. How can i add log4j accurate in a osgi-bundle,so its log is shown in karaf log:display?Regards,Matthias--Sent from: http://karaf.922171.n3.nabble.com/Karaf-User-f930749.html