9:08 p.m.
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Hi,
Just a quick follow-up on 2.)
As it happens, I just received a pull request for the first part of this =
(allow to plug in a simple custom JAX-RS marshaller). Yay, open source! =
;)=20
You can track the progress here:
https://issues.jboss.org/browse/ERRAI-796
This will allow you to rename fields using Jackson annotations.=20
Cheers,
Christian
On Nov 19, 2014, at 12:01 PM, Christian Sadilek <csadilek(a)redhat.com> =
wrote:
resource interfaces and entities=20
exactly google or solve=20
interceptors)
specification "vm" which is the actual
others may arise along the way.
https://github.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/=
restapi/interface/definition/src/main/java/org/ovirt/engine/api/json/JSONP=
rovider.java
Hi Martin,
=20
Thanks for looking into this!
=20
1) Yes, Errai supports client-side request interceptors that can be =
used to
manipulate the request in any way you want (i.e. for caching or =
security purposes): =
http://docs.jboss.org/errai/3.0.3.Final/errai/reference/html_single/#sid-1=
9398997_ErraiJAX-RS-ClientsideInterceptors. However, the content-type =
header should really be controlled (and is automatically set) based on =
the @Consumes annotation. Of course you can override it, if required.
=20
2) By default, Errai comes with its own marshalling system and =
customized JSON
format. It supports heterogenous collections, immutable =
types, back references and much more which required adding additional =
framework-specific information to the payload (i.e. type information, =
object ids, etc.). In Errai JAX-RS you can also use standard Jackson =
based JSON which all JAX-RS implementations support. Errai does support =
customer marshallers too ( =
http://docs.jboss.org/errai/3.0.3.Final/errai/reference/html_single/#sid-5=
931328_Marshalling-CustomMarshallers) but this feature is not aligned =
with our Jackson support. We can talk about this more but it looks like =
I=92ll have to add a feature for you here if that=92s a blocking =
requirement?
=20
Cheers,
Christian
=20
On Nov 19, 2014, at 10:58 AM, Martin Betak <mbetak(a)redhat.com> wrote:
=20
> Hi all,
REST client in=20
=20
> I've been exploring the possibilities of utilizing
Errai JAX-RS for = > our current GWT-based frontend. This would be a complement to =
Vojtech's oVirt.js library
> which is very native to javascript and utilizes dynamic discovery
of =
resources and actions.
=20
> Errai JAX-RS would enable us
to reuse our restapi definitions of = > and generate proxies automatically thus eliminating the need for
=
extensive manual
> code generation.
https://docs.jboss.org/author/display/ERRAI/Errai+JAX-RS
=20
> [errai jax-rs] =
=20
> Unfortunately in my quest I
stumbled upon some issues I couldn't = > and I would like to ask Mark or Christian, whether the below is =
somehow possible with Errai:
=20
> 1) Adding custom header to
every request (some form of request = > You, see our api returns by default XML and we of course want to
=
consume JSON.
> Thus adding 'Content-Type: application/json' as well as
other custom =
authentication headers
> is necessary for our usage.
Jackson one.=20
=20
> 2) Using custom JSONProvider/ObjectMapper instead of
the default = > In our JSONProvider [1] we use custom ObjectMapper [2] mainly to
map =
JAX-B annotations
> to json. Without this for example errai generates marshaller for
the =
VMs resource
=20
> public class VMs {
> @XmlElement(name =3D "vm")
> protected List<VM> vMs;
> }
=20
> that expects json field called "vMs" instead
of the JAX-B = > format returned from the API. There may be other differencies
such as =
[3] so I think the best solution
> would be if we could tell errai to use specific JSONProvider for
=
generating the marshallers.
=20
> This are the issues that so
far seem to be the most blocking ones, = > [2] =
https://github.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/=
restapi/interface/definition/src/main/java/org/ovirt/engine/api/json/Custo=
mObjectMapper.java
> [3] =
https://github.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/=
restapi/interface/definition/src/main/java/org/ovirt/engine/api/json/Custo=
mBeanFactory.java
> [resource schema] =
https://github.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/=
restapi/interface/definition/src/main/resources/api.xsd
=20
--Apple-Mail=_12774FE9-5503-4BA2-8215-8D69C7B462D7
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<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word;
=
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;">Hi,<div><br></div><div>Just a quick
follow-up on =
2.)</div><div><br></div><div>As it happens, I just received
a pull =
request for the first part of this (allow to plug in a simple custom =
JAX-RS marshaller). Yay, open source! =
;) </div><div><br></div><div>You can track the
progress =
here:</div><div><a =
href=3D"https://issues.jboss.org/browse/ERRAI-796">https://i...
g/browse/ERRAI-796</a></div><div><br></div><div>This
will allow you to =
rename fields using Jackson =
annotations. </div><div><br></div><div>Cheers,</div><div>Christian</d=
iv><div><br><div><div>On Nov 19, 2014, at 12:01 PM, Christian
Sadilek =
<<a
href=3D"mailto:csadilek@redhat.com">csadilek@redhat.com</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote
=
type=3D"cite"><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dwindows-1252"><div style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi =
Martin,<div><br></div><div>Thanks for looking into =
this!<br><div><div><br></div><div>1) Yes, Errai
supports client-side =
request interceptors that can be used to manipulate the request in any =
way you want (i.e. for caching or security purposes): <a =
href=3D"http://docs.jboss.org/errai/3.0.3.Final/errai/reference/html...
e/#sid-19398997_ErraiJAX-RS-ClientsideInterceptors">http://docs.j...
errai/3.0.3.Final/errai/reference/html_single/#sid-19398997_ErraiJAX-RS-Cl=
ientsideInterceptors</a>. However, the content-type header should really =
be controlled (and is automatically set) based on the @Consumes =
annotation. Of course you can override it, if =
required.</div><div><br></div><div>2) By default, Errai
comes with its =
own marshalling system and customized JSON format. It supports =
heterogenous collections, immutable types, back references and much more =
which required adding additional framework-specific information to the =
payload (i.e. type information, object ids, etc.). In Errai JAX-RS you =
can also use standard Jackson based JSON which all JAX-RS =
implementations support. Errai does support customer marshallers too =
( <a =
href=3D"http://docs.jboss.org/errai/3.0.3.Final/errai/reference/html...
e/#sid-5931328_Marshalling-CustomMarshallers">http://docs.jboss.o...
3.0.3.Final/errai/reference/html_single/#sid-5931328_Marshalling-CustomMar=
shallers</a>) but this feature is not aligned with our Jackson support. =
We can talk about this more but it looks like I=92ll have to add a =
feature for you here if that=92s a blocking =
requirement?</div><div><br></div><div>Cheers,</div><div>Christian</div><di=
v><br></div><div><div><div>On Nov 19, 2014, at 10:58 AM,
Martin Betak =
<<a
href=3D"mailto:mbetak@redhat.com">mbetak@redhat.com</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote
=
type=3D"cite">Hi all,<br><br>I've been exploring the
possibilities of =
utilizing Errai JAX-RS for REST client in <br>our current GWT-based =
frontend. This would be a complement to Vojtech's oVirt.js =
library<br>which is very native to javascript and utilizes dynamic =
discovery of resources and actions.<br><br>Errai JAX-RS would enable us =
to reuse our restapi definitions of resource interfaces and entities =
<br>and generate proxies automatically thus eliminating the need for =
extensive manual<br>code generation.<br><br>[errai jax-rs] <a =
href=3D"https://docs.jboss.org/author/display/ERRAI/Errai+JAX-RS&quo...
docs.jboss.org/author/display/ERRAI/Errai+JAX-RS</a><br><b...
=
in my quest I stumbled upon some issues I couldn't exactly google or =
solve <br>and I would like to ask Mark or Christian, whether the below =
is somehow possible with Errai:<br><br>1) Adding custom header to every =
request (some form of request interceptors)<br>You, see our api returns =
by default XML and we of course want to consume JSON.<br>Thus adding =
'Content-Type: application/json' as well as other custom authentication =
headers<br>is necessary for our usage.<br><br>2) Using custom =
JSONProvider/ObjectMapper instead of the default Jackson one. <br>In our =
JSONProvider [1] we use custom ObjectMapper [2] mainly to map JAX-B =
annotations<br>to json. Without this for example errai generates =
marshaller for the VMs resource<br><br>public class VMs {<br> =
@XmlElement(name =3D "vm")<br> =
protected List<VM>
vMs;<br>}<br><br>that expects =
json field called "vMs" instead of the JAX-B specification "vm" which
is =
the actual<br>format returned from the API. There may be other =
differencies such as [3] so I think the best solution<br>would be if we =
could tell errai to use specific JSONProvider for generating the =
marshallers.<br><br>This are the issues that so far seem to be the most =
blocking ones, others may arise along the way.<br><br>Thank you for any =
help provided.<br><br>Best
regards,<br><br>Martin<br><br>[1] <a =
href=3D"https://github.com/oVirt/ovirt-engine/blob/master/backend/ma...
modules/restapi/interface/definition/src/main/java/org/ovirt/engine/api/js=
on/JSONProvider.java">https://github.com/oVirt/ovirt-engine/blob/...
ckend/manager/modules/restapi/interface/definition/src/main/java/org/ovirt=
/engine/api/json/JSONProvider.java</a><br>[2] <a =
href=3D"https://github.com/oVirt/ovirt-engine/blob/master/backend/ma...
modules/restapi/interface/definition/src/main/java/org/ovirt/engine/api/js=
on/CustomObjectMapper.java">https://github.com/oVirt/ovirt-engine...
ter/backend/manager/modules/restapi/interface/definition/src/main/java/org=
/ovirt/engine/api/json/CustomObjectMapper.java</a><br>[3] <a =
href=3D"https://github.com/oVirt/ovirt-engine/blob/master/backend/ma...
modules/restapi/interface/definition/src/main/java/org/ovirt/engine/api/js=
on/CustomBeanFactory.java">https://github.com/oVirt/ovirt-engine/...
er/backend/manager/modules/restapi/interface/definition/src/main/java/org/=
ovirt/engine/api/json/CustomBeanFactory.java</a><br>[resource schema] <a =
href=3D"https://github.com/oVirt/ovirt-engine/blob/master/backend/ma...
modules/restapi/interface/definition/src/main/resources/api.xsd">https://g=
ithub.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/restapi/i=
nterface/definition/src/main/resources/api.xsd</a><br></blockquote></div><=
br></div></div></div></div></blockquote></div><br></div></body></html>=
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