AW: Exporting an instance of a 3rd party library as service

[Karsten Blume]

Hello Geoffrey, Arthur
Thank you for your support regarding this topic. I would like to sum up my 
experience here.

Objective
Is to let client bundles (C) use a preconfigured service of another bundle (S), 
which is implemented by a third bundle or library (I).

In my case this was blueprint bundles
I: the jasypt library as OSGI library, S: my base bundle, C: several camel 
bundles
Service was the org.jasypt.encryption.StringEncryptor interface

Check Manifest files for
S: 
Import-Package: "org.jasypt.encryption" and all implementation packages needed 
to 
Export-Service:  org.jasypt.encryption.StringEncryptor
C: 
Import-Package "org.jasypt.encryption" and 
Import-Service "org.jasypt.encryption.StringEncryptor"
I: 
export all the used packages from above, should be done by implementor or look 
for a servicemix bundle project variant

implementation
all bundles:
maven
use maven-bundle-plugin with *

blueprint
S: 

and instantiate the beans behind the interface (PBE config,...)
C:

and those namespace configuraions you find in the karaf docs

Testing
My default blueprint test context initiates by default a bean, which is 
implementing the StringEncryptor interface. So all references are satisfied.

AND
What happened to me:
Karaf and Camel come with different versions of the jasypt library, ensure that 
you use only one of them for your C bundles. Or in general ensure your I bundle 
is used by S and C at the same time.
Check with the karaf commands 
You have only one version of bundle I (bundle:list or la)
The command "capabilities" shows that your C bundles are connected to the 
correct S bundle.
I achieved that by using the overrides.properties file: 
mvn:org.apache.servicemix.bundles/org.apache.servicemix.bundles.jasypt/1.9.2_1;range="[1,2)"
Perhaps you can control this also by the ; parameter in the 
import-package.

Thanks all and I hope the above helps somebody else
Karsten


-Ursprüngliche Nachricht-
Von: Geoffrey Seanor  
Gesendet: Montag, 4. April 2022 18:18
An: user@karaf.apache.org
Betreff: RE: Exporting an instance of a 3rd party library as service

Hi Karsten,

My encryptor service provider 'bundle' is just a blueprint file installed in 
the deploy folder whose singular purpose is to export the service/interface as 
per the various examples online.

The consumer bundle manifest does Import-Package "org.jasypt.encryption" and 
Import-Service "org.jasypt.encryption.StringEncryptor".
It's also ok to use multiple blueprint files in a single bundle.

The error message you provided shows that you don't have a service providing 
the org.jasypt.encryption.StringEncryptor interface.  Can your 'base' bundle 
provide this?

Regards,

Geoff

-Original Message-
From: Karsten Blume  
Sent: 04 April 2022 14:48
To: user@karaf.apache.org
Subject: AW: Exporting an instance of a 3rd party library as service

Hello Geoffrey,
Yes, I mean there are some examples in the WWW on how to use the encryption.

In my "consumer" bundle I have the service reference and the property 
placeholder in different blueprint files, but this should work, at least it 
works for everything else.

Does your base bundle export the jasypt packages or just the service in the 
Meta-Inf file?
And does your consumer bundle import service and package?
BR
Karsten

-Ursprüngliche Nachricht-
Von: Geoffrey Seanor  
Gesendet: Montag, 4. April 2022 13:59
An: user@karaf.apache.org
Betreff: RE: Exporting an instance of a 3rd party library as service

Hi Karsten,

You base bundle looks ok.

My importing blueprint bundle does the following:

1) References this namespace

xmlns:enc="https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fkaraf.apache.org%2Fxmlns%2Fjasypt%2Fv1.0.0data=04%7C01%7Ckarsten.blume%40ottoint.com%7C2c73b1673c6f448baba508da1656b19b%7Cf73d6f0048944b4eba0071d6df45717d%7C0%7C0%7C637846858899141384%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=bh0oeSilmrdJuyAQLRAlbBBnKKzbPE1MeOkRzxWXqeo%3Dreserved=0;

2) Configures the string encryptor service reference



3) To decrypt values like this


The above works with Karaf 4.2.4 and 4.3.6 running on Linux or Win 7, other 
combinations I'm not sure.
(Note that the service id is local to the blueprint container)

Geoff

-Original Message-
From: Karsten Blume  
Sent: 04 April 2022 11:00
To: user@karaf.apache.org
Subject: AW: Exporting an instance of a 3rd party library as service

Hello Jean-Baptiste, Geoffrey
Here are some more details:

runtime err msg
Unable to start blueprint container for bundle order/22.14.0.98-SNAPSHOT due to 
unresolved dependencies [(objectClass=org.jasypt.encryption.StringEncryptor)]
java.util.concurrent.TimeoutException: null ...
this standard exception stacktrace, when a service was not found

I use the maven bundle plugin without import instruction, so it uses * as 
default.
The Meta-Inf shows the service/interface listed in 

AW: Exporting an instance of a 3rd party library as service

[Karsten Blume]

Hello Arthur,
I have added the servicemix version of jasypt

org.apache.servicemix.bundles
org.apache.servicemix.bundles.jasypt
1.9.2_1
provided

and excluded the original jasypt from camel-jasypt dep, so any bundle is using 
the above OSGI version.
I defined this in the parent pom with "provided" scope for all modules.
So I assume that all bundles have the servicemix jasypt in their classpath.

I should expect the package "org.jasypt.encryption " in the import section of 
the Meta-Inf and in service-import section 
"org.jasypt.encryption.StringEncryptor"?

BR
Karsten

Von: Arthur Naseef 
Gesendet: Montag, 4. April 2022 18:58
An: user@karaf.apache.org
Betreff: Re: Exporting an instance of a 3rd party library as service

The following error message says the importing bundle (order) does not have 
access to the class "org.jasypt.encryption.StringEncryptor".

Unable to start blueprint container for bundle order/22.14.0.98-SNAPSHOT due to 
unresolved dependencies [(objectClass=org.jasypt.encryption.StringEncryptor)]

In order to use a "reference" with an interface class, the bundle needs to have 
that interface class on its own classpath.  Is the module with that class in 
the list of dependencies for the bundle (the one using "reference)?

Art

On Mon, Apr 4, 2022 at 3:00 AM Karsten Blume 
mailto:karsten.bl...@ottoint.com>> wrote:
Hello Jean-Baptiste, Geoffrey
Here are some more details:

runtime err msg
Unable to start blueprint container for bundle order/22.14.0.98-SNAPSHOT due to 
unresolved dependencies [(objectClass=org.jasypt.encryption.StringEncryptor)]
java.util.concurrent.TimeoutException: null
...
this standard exception stacktrace, when a service was not found

I use the maven bundle plugin without import instruction, so it uses * as 
default.
The Meta-Inf shows the service/interface listed in the export- and 
import-service sections properly. In karaf cmd line with bundle:requirements 
and bundle:capabilites both could be seen.

@Geoffry
exactly this I want to achieve, yes.
Base bundle:
...





Importing Bundle:
   


One thing I need to add: Running on Windows 10 the pax-jdbc v0.9 is able to 
find the service, on WSL2 Ubuntu, Docker jre8-alpine or Mac the service is not 
found.

Question: In general, a base bundle should be able to instantiate a class of 
another library and offer this as a service?
Does this base bundle should export the packages of this other library? Ie. for 
Jasypt lib org.jasypt.encryption and sub-packages?

Regards
Karsten

Ursprüngliche Nachricht-
Von: Geoffrey Seanor 
mailto:geoffrey.sea...@mufgsecurities.com>>
Gesendet: Montag, 4. April 2022 10:23
An: user@karaf.apache.org
Betreff: RE: Exporting an instance of a 3rd party library as service

Hi Karsten,

Have you tried exporting interface org.jasypt.encryption.StringEncryptor?

I export this interface using a dedicated blueprint bundle and pass it the 
decryption password from the environment.  This service is then used by 
pax-jdbc, and also referenced by other blueprint bundles which need to import 
the jasypt namespace and use a property-placeholder to resolve the encrypted 
entries.

Kind regards,

Geoff

-Original Message-
From: Jean-Baptiste Onofré mailto:j...@nanthrax.net>>
Sent: 04 April 2022 08:49
To: user@karaf.apache.org
Subject: Re: Exporting an instance of a 3rd party library as service

*** External email: Please be cautious when opening attachments or clicking 
links. ***


Hi,

What do you mean by "not finding the service" ?
You mean at runtime (looking for service reference) or at deployment time (the 
maven-bundle-plugin is generated req/cap for service, so it might be your 
issue) ?

If you can share the message you have, it would be helpful.

Regards
JB

On Mon, Apr 4, 2022 at 9:06 AM Karsten Blume 
mailto:karsten.bl...@ottoint.com>> wrote:
>
> Hello everybody,
>
> i come up with a issue, which might be easily answered in the OSGI world, 
> though I have not yet found a solution in the WWW.
>
>
>
> Running
>
> Karaf 3.0.7, Java8, Blueprint
>
>
>
> Objective
>
> Any bundle (own or e.g. pax-jdbc-config) should be able to use the same 
> configured StringEncryptor.
>
>
>
> How
>
> I configure and create an instance of 
> org.jasypt.encryption.pbe.StandardPBEStringEncryptor  and export this 
> instance as a service of interface org.jasypt.encryption.StringEncryption. in 
> one of my base bundles.
>
> All other bundles reference the interface to get the service.
>
>
>
> Problem
>
> If I export the original interface as service the others are not  finding 
> this service (having modified the Maven bundle plugin properly).
>
> Do I need to wrap the StringEncryptor in a delegate pattern, so I export my 
> own interface?
>
>
>
> Any help is appreciated,
>
> Thx Karsten
>
>

This email including any attachments is confidential and may 

AW: Exporting an instance of a 3rd party library as service

[Karsten Blume]

Hello Geoffrey,
Yes, I mean there are some examples in the WWW on how to use the encryption.

In my "consumer" bundle I have the service reference and the property 
placeholder in different blueprint files, but this should work, at least it 
works for everything else.

Does your base bundle export the jasypt packages or just the service in the 
Meta-Inf file?
And does your consumer bundle import service and package?
BR
Karsten

-Ursprüngliche Nachricht-
Von: Geoffrey Seanor  
Gesendet: Montag, 4. April 2022 13:59
An: user@karaf.apache.org
Betreff: RE: Exporting an instance of a 3rd party library as service

Hi Karsten,

You base bundle looks ok.

My importing blueprint bundle does the following:

1) References this namespace

xmlns:enc="https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fkaraf.apache.org%2Fxmlns%2Fjasypt%2Fv1.0.0data=04%7C01%7Ckarsten.blume%40ottoint.com%7C70ffc6aaf4184a5ee7cf08da1632aad6%7Cf73d6f0048944b4eba0071d6df45717d%7C0%7C0%7C637846704160479432%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=b9kcWUMdlSqYxD9OgG5Sr%2BwD8u0Q2Am2GMzt08UJ2g8%3Dreserved=0;

2) Configures the string encryptor service reference



3) To decrypt values like this


The above works with Karaf 4.2.4 and 4.3.6 running on Linux or Win 7, other 
combinations I'm not sure.
(Note that the service id is local to the blueprint container)

Geoff

-Original Message-
From: Karsten Blume  
Sent: 04 April 2022 11:00
To: user@karaf.apache.org
Subject: AW: Exporting an instance of a 3rd party library as service

Hello Jean-Baptiste, Geoffrey
Here are some more details:

runtime err msg
Unable to start blueprint container for bundle order/22.14.0.98-SNAPSHOT due to 
unresolved dependencies [(objectClass=org.jasypt.encryption.StringEncryptor)]
java.util.concurrent.TimeoutException: null ...
this standard exception stacktrace, when a service was not found

I use the maven bundle plugin without import instruction, so it uses * as 
default.
The Meta-Inf shows the service/interface listed in the export- and 
import-service sections properly. In karaf cmd line with bundle:requirements 
and bundle:capabilites both could be seen.

@Geoffry
exactly this I want to achieve, yes.
Base bundle:
...

  

Importing Bundle:
   


One thing I need to add: Running on Windows 10 the pax-jdbc v0.9 is able to 
find the service, on WSL2 Ubuntu, Docker jre8-alpine or Mac the service is not 
found.

Question: In general, a base bundle should be able to instantiate a class of 
another library and offer this as a service? 
Does this base bundle should export the packages of this other library? Ie. for 
Jasypt lib org.jasypt.encryption and sub-packages?

Regards
Karsten

Ursprüngliche Nachricht-
Von: Geoffrey Seanor 
Gesendet: Montag, 4. April 2022 10:23
An: user@karaf.apache.org
Betreff: RE: Exporting an instance of a 3rd party library as service

Hi Karsten,

Have you tried exporting interface org.jasypt.encryption.StringEncryptor?

I export this interface using a dedicated blueprint bundle and pass it the 
decryption password from the environment.  This service is then used by 
pax-jdbc, and also referenced by other blueprint bundles which need to import 
the jasypt namespace and use a property-placeholder to resolve the encrypted 
entries.

Kind regards,

Geoff

-Original Message-
From: Jean-Baptiste Onofré 
Sent: 04 April 2022 08:49
To: user@karaf.apache.org
Subject: Re: Exporting an instance of a 3rd party library as service

*** External email: Please be cautious when opening attachments or clicking 
links. ***


Hi,

What do you mean by "not finding the service" ?
You mean at runtime (looking for service reference) or at deployment time (the 
maven-bundle-plugin is generated req/cap for service, so it might be your 
issue) ?

If you can share the message you have, it would be helpful.

Regards
JB

On Mon, Apr 4, 2022 at 9:06 AM Karsten Blume  wrote:
>
> Hello everybody,
>
> i come up with a issue, which might be easily answered in the OSGI world, 
> though I have not yet found a solution in the WWW.
>
>
>
> Running
>
> Karaf 3.0.7, Java8, Blueprint
>
>
>
> Objective
>
> Any bundle (own or e.g. pax-jdbc-config) should be able to use the same 
> configured StringEncryptor.
>
>
>
> How
>
> I configure and create an instance of 
> org.jasypt.encryption.pbe.StandardPBEStringEncryptor  and export this 
> instance as a service of interface org.jasypt.encryption.StringEncryption. in 
> one of my base bundles.
>
> All other bundles reference the interface to get the service.
>
>
>
> Problem
>
> If I export the original interface as service the others are not  finding 
> this service (having modified the Maven bundle plugin properly).
>
> Do I need to wrap the StringEncryptor in a delegate pattern, so I export my 
> own interface?
>
>
>
> Any help is appreciated,
>
> Thx Karsten
>
>

This email including any 

AW: Exporting an instance of a 3rd party library as service

[Karsten Blume]

Hello Jean-Baptiste, Geoffrey
Here are some more details:

runtime err msg 
Unable to start blueprint container for bundle order/22.14.0.98-SNAPSHOT due to 
unresolved dependencies [(objectClass=org.jasypt.encryption.StringEncryptor)]
java.util.concurrent.TimeoutException: null
...
this standard exception stacktrace, when a service was not found

I use the maven bundle plugin without import instruction, so it uses * as 
default.
The Meta-Inf shows the service/interface listed in the export- and 
import-service sections properly. In karaf cmd line with bundle:requirements 
and bundle:capabilites both could be seen.

@Geoffry
exactly this I want to achieve, yes.
Base bundle:
...





Importing Bundle:
   


One thing I need to add: Running on Windows 10 the pax-jdbc v0.9 is able to 
find the service, on WSL2 Ubuntu, Docker jre8-alpine or Mac the service is not 
found.

Question: In general, a base bundle should be able to instantiate a class of 
another library and offer this as a service? 
Does this base bundle should export the packages of this other library? Ie. for 
Jasypt lib org.jasypt.encryption and sub-packages?

Regards
Karsten

Ursprüngliche Nachricht-
Von: Geoffrey Seanor  
Gesendet: Montag, 4. April 2022 10:23
An: user@karaf.apache.org
Betreff: RE: Exporting an instance of a 3rd party library as service

Hi Karsten,

Have you tried exporting interface org.jasypt.encryption.StringEncryptor?

I export this interface using a dedicated blueprint bundle and pass it the 
decryption password from the environment.  This service is then used by 
pax-jdbc, and also referenced by other blueprint bundles which need to import 
the jasypt namespace and use a property-placeholder to resolve the encrypted 
entries.

Kind regards,

Geoff

-Original Message-
From: Jean-Baptiste Onofré  
Sent: 04 April 2022 08:49
To: user@karaf.apache.org
Subject: Re: Exporting an instance of a 3rd party library as service

*** External email: Please be cautious when opening attachments or clicking 
links. ***


Hi,

What do you mean by "not finding the service" ?
You mean at runtime (looking for service reference) or at deployment time (the 
maven-bundle-plugin is generated req/cap for service, so it might be your 
issue) ?

If you can share the message you have, it would be helpful.

Regards
JB

On Mon, Apr 4, 2022 at 9:06 AM Karsten Blume  wrote:
>
> Hello everybody,
>
> i come up with a issue, which might be easily answered in the OSGI world, 
> though I have not yet found a solution in the WWW.
>
>
>
> Running
>
> Karaf 3.0.7, Java8, Blueprint
>
>
>
> Objective
>
> Any bundle (own or e.g. pax-jdbc-config) should be able to use the same 
> configured StringEncryptor.
>
>
>
> How
>
> I configure and create an instance of 
> org.jasypt.encryption.pbe.StandardPBEStringEncryptor  and export this 
> instance as a service of interface org.jasypt.encryption.StringEncryption. in 
> one of my base bundles.
>
> All other bundles reference the interface to get the service.
>
>
>
> Problem
>
> If I export the original interface as service the others are not  finding 
> this service (having modified the Maven bundle plugin properly).
>
> Do I need to wrap the StringEncryptor in a delegate pattern, so I export my 
> own interface?
>
>
>
> Any help is appreciated,
>
> Thx Karsten
>
>

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