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Posted to user@karaf.apache.org by ellirael <el...@mail.ru> on 2016/08/31 13:46:49 UTC

Inject system property value via blueprint

I saw an example how to inject property values which are defined in config
file.
It is some thing like this:

<cm:property-placeholder persistent-id="ConfigApp" update-strategy="reload"
>
<cm:default-properties>
<cm:property name="title" value="Default Title"/>
</cm:default-properties>
</cm:property-placeholder>
<bean id="myApp" init-method="refresh">
<property name="title" value="$\{title\}"></property>
</bean>

How to do the same with the system property printed by system:property
command output?
Or how to gain access to those system properties values?



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Re: Inject system property value via blueprint

Posted by ellirael <el...@mail.ru>.

TY, JB. It works fine.



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Re: Inject system property value via blueprint

Posted by Alex Soto <al...@envieta.com>.

I put them in the setenv file, something like:

-Dhome.dir=$HOME

Best regards,
Alex soto



> On Sep 2, 2016, at 11:00 AM, CLEMENT Jean-Philippe <je...@fr.thalesgroup.com> wrote:
> 
> Ok... is there a way to use env variables other than via system variables?
> 
> Regards,
> JP
> 
> -----Message d'origine-----
> De : Jean-Baptiste Onofré [mailto:jb@nanthrax.net] 
> Envoyé : vendredi 2 septembre 2016 16:19
> À : user@karaf.apache.org
> Objet : Re: Inject system property value via blueprint
> 
> Ha, ok understood.
> 
> So, it's about env variables more than system variables. System variables for me are passed using -D on the JVM.
> 
> Regards
> JB
> 
> On 09/02/2016 03:41 PM, CLEMENT Jean-Philippe wrote:
>> I'm not too sure it's the same need => at present time to get an environment variable in a cfg I have to modify the setenv (export KARAF_OPTS="-Dmy.variable=$MY_ENV_VARIABLE") then I may use it in a cfg (SOME_KEY=${my.variable}).
>> 
>> But I have to "declare" each variable in the setenv scripts... Could 
>> be nice to get environment variables directly, for instance 
>> SOME_KEY=$[MY_ENV_VARIABLE]
>> 
>> Regards,
>> JP
>> 
>> -----Message d'origine-----
>> De : Jean-Baptiste Onofré [mailto:jb@nanthrax.net] Envoyé : vendredi 2 
>> septembre 2016 15:29 À : user@karaf.apache.org Objet : Re: Inject 
>> system property value via blueprint
>> 
>> OK, it sounds like this one then:
>> 
>> https://issues.apache.org/jira/browse/KARAF-4609
>> 
>> Regards
>> JB
>> 
>> On 09/02/2016 03:22 PM, CLEMENT Jean-Philippe wrote:
>>> Ah, I mean more environment related such as "export MY_PROPERTY=something" the use it in Karaf via something like $[MY_PROPERTY].
>>> 
>>> I think we already had this discussion but I did not succeed in 
>>> finding a corresponding Jira (?)
>>> 
>>> Regards,
>>> JP
>>> 
>>> -----Message d'origine-----
>>> De : Jean-Baptiste Onofré [mailto:jb@nanthrax.net] Envoyé : vendredi 
>>> 2 septembre 2016 14:36 À : user@karaf.apache.org Objet : Re: Inject 
>>> system property value via blueprint
>>> 
>>> You mean to be able to use ${sys.user.home} in a cfg file where user.home is the system property ?
>>> 
>>> Maybe it's related to:
>>> https://issues.apache.org/jira/browse/KARAF-4609
>>> https://issues.apache.org/jira/browse/KARAF-3949
>>> 
>>> Regards
>>> JB
>>> 
>>> On 09/02/2016 02:30 PM, CLEMENT Jean-Philippe wrote:
>>>> Hi JB,
>>>> 
>>>> Does it also work for .cfg files?
>>>> 
>>>> Regards,
>>>> JP
>>>> 
>>>> -----Message d'origine-----
>>>> De : Jean-Baptiste Onofré [mailto:jb@nanthrax.net] Envoyé : mercredi
>>>> 31 août 2016 15:49 À : user@karaf.apache.org Objet : Re: Inject 
>>>> system property value via blueprint
>>>> 
>>>> Hi,
>>>> 
>>>> you have to use the ext xmlns for that.
>>>> 
>>>> Just add the following in your blueprint:
>>>> 
>>>> <!-- Allow the use of system properties --> 
>>>> <ext:property-placeholder placeholder-prefix="$[" 
>>>> placeholder-suffix="]" />
>>>> 
>>>> Then, you can use system properties with $[foo].
>>>> 
>>>> Regards
>>>> JB
>>>> 
>>>> On 08/31/2016 03:46 PM, ellirael wrote:
>>>>> I saw an example how to inject property values which are defined in 
>>>>> config file.
>>>>> It is some thing like this:
>>>>> 
>>>>> <cm:property-placeholder persistent-id="ConfigApp" update-strategy="reload"
>>>>>> 
>>>>> <cm:default-properties>
>>>>> <cm:property name="title" value="Default Title"/> 
>>>>> </cm:default-properties> </cm:property-placeholder> <bean id="myApp"
>>>>> init-method="refresh"> <property name="title"
>>>>> value="$\{title\}"></property> </bean>
>>>>> 
>>>>> How to do the same with the system property printed by 
>>>>> system:property command output?
>>>>> Or how to gain access to those system properties values?
>>>>> 
>>>>> 
>>>>> 
>>>>> --
>>>>> View this message in context:
>>>>> http://karaf.922171.n3.nabble.com/Inject-system-property-value-via-
>>>>> b l u eprint-tp4047779.html Sent from the Karaf - User mailing list 
>>>>> archive at Nabble.com.
>>>>> 
>>>> 
>>>> --
>>>> Jean-Baptiste Onofré
>>>> jbonofre@apache.org
>>>> http://blog.nanthrax.net
>>>> Talend - http://www.talend.com
>>>> 
>>> 
>>> --
>>> Jean-Baptiste Onofré
>>> jbonofre@apache.org
>>> http://blog.nanthrax.net
>>> Talend - http://www.talend.com
>>> 
>> 
>> --
>> Jean-Baptiste Onofré
>> jbonofre@apache.org
>> http://blog.nanthrax.net
>> Talend - http://www.talend.com
>> 
> 
> --
> Jean-Baptiste Onofré
> jbonofre@apache.org
> http://blog.nanthrax.net
> Talend - http://www.talend.com