Re: [osgi-dev] OSGi Http Client Missing Requirement
On Mon, Jan 21, 2019 at 9:47 PM Paul F Fraser via osgi-dev <
osgi-dev@mail.osgi.org> wrote:
> On 21/01/2019 7:57 pm, Tim Ward wrote:
>
> As a separate question - is there a reason that you are trying to use the
> Apache HttpClient? OSGi enRoute makes use of the JAX-RS Whiteboard which
> includes a simple way to access the JAX-RS specification client
> implementation. If it’s possible for you to use the existing JAX-RS Client
> instead then you could avoid adding the duplicate function.
>
> R7 spec sample code
>
> Client client = clientBuilder.build(); Promise p =
> client.target(REST_SERVICE_URL) .path("/foo") .path("/{name}")
> .resolveTemplate("name", buzz) .request() .rx(PromiseRxInvoker.class)
> .get(String.class);
>
> Using
>
> Client client = ClientBuilder.newClient(); // as the first line
>
_clientBuilder_ is a reference to the `javax.ws.rs.client.ClientBuilder`
*service* provided by JAXRS Whiteboard, which you can get to satisfy the
above code example with:
@Reference
private ClientBuilder clientBuilder;
I cannot find dependecies which satisfy the rx(Promise...) line.
>
https://osgi.org/specification/osgi.cmpn/7.0.0/service.jaxrs.html#org.osgi.service.jaxrs.client.PromiseRxInvoker
So:
org.osgi
org.osgi.service.jaxrs
1.0.0
import org.osgi.service.jaxrs.client.PromiseRxInvoker;
HTH
- Ray
I have tried most of the glassfish jersey bundles and quite a few others.
>
> Is there any working code examples available or can anyone suggest the
> required dependencies?
>
> Paul
> ___
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--
*Raymond Augé*
(@rotty3000)
Senior Software Architect *Liferay, Inc.*
(@Liferay)
Board Member & EEG Co-Chair, OSGi Alliance (@OSGiAlliance)
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Re: [osgi-dev] OSGi Http Client Missing Requirement
On 21/01/2019 7:57 pm, Tim Ward wrote:
As a separate question - is there a reason that you are trying to use the
Apache HttpClient? OSGi enRoute makes use of the JAX-RS Whiteboard which
includes a simple way to access the JAX-RS specification client implementation.
If it’s possible for you to use the existing JAX-RS Client instead then you
could avoid adding the duplicate function.
R7 spec sample code
Client client = clientBuilder.build(); Promise p = client.target(REST_SERVICE_URL)
.path("/foo") .path("/{name}") .resolveTemplate("name", buzz) .request() .rx(PromiseRxInvoker.class)
.get(String.class);
Using
Client client = ClientBuilder.newClient(); // as the first line
I cannot find dependecies which satisfy the rx(Promise...) line.
I have tried most of the glassfish jersey bundles and quite a few others.
Is there any working code examples available or can anyone suggest the required
dependencies?
Paul
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Re: [osgi-dev] OSGi Http Client Missing Requirement
Hi Paul, This is a different problem, in that where the previous requirement for the “osgi.service” namespace was an “active” time requirement (and therefore not enforced at runtime), this is a resolve time requirement that *will* prevent your bundles from resolving/starting in the framework. It is also the case that osgi.wiring.package namespace corresponds to the Import-Package part of your bundle manifest - your bundle uses types from the org.apache.http package and so you need to deploy a bundle which contains and exports that package. This is therefore not so much a small packaging bug, but either a significant dependency graph issue (the right bundle doesn’t end up in your index when it should) or a significant design issue (a core part of the API isn’t exported) in the HttpClient project. As a separate question - is there a reason that you are trying to use the Apache HttpClient? OSGi enRoute makes use of the JAX-RS Whiteboard which includes a simple way to access the JAX-RS specification client implementation. If it’s possible for you to use the existing JAX-RS Client instead then you could avoid adding the duplicate function. Best Regards, Tim > On 21 Jan 2019, at 05:56, Paul F Fraser via osgi-dev > wrote: > > Using the Apache httpclient-osgi bundle > https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient-osgi/4.5.6 > in a (new) enRoute project I get this error- > > [ERROR] Failed to execute goal > biz.aQute.bnd:bnd-export-maven-plugin:4.1.0:export (default) on project > qQNESiteAPP: > Unable to resolve <>: missing requirement > osgi.identity;filter:='(osgi.identity=net.qnenet.qnesite.qHttpClientImpl)' > [caused by: Unable to resolve net.qnenet.qnesite.qHttpClientImpl > version=0.0.1.201901210415: > missing requirement > osgi.wiring.package;filter:='(&(osgi.wiring.package=org.apache.http))'] -> > [Help 1] > > Is this a similar problem to that discussed where Tim Ward stated - > > "Now in fact the Felix Http Jetty implementation used in OSGi enRoute *does* > provide this service, however it is missing the metadata from the manifest > saying that it provides this service. This is a packaging bug in the Felix > Jetty bundle, and is why the resolve fails." > > Checking the exports from the bundle, "org.apache.http" appears many times > but I cannot see a distinct export for that package although I could have > missed it. > > Is there a problem with the apache httpclient for OSGi purposes? > > Paul Fraser > > ___ > OSGi Developer Mail List > osgi-dev@mail.osgi.org > https://mail.osgi.org/mailman/listinfo/osgi-dev ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev
