On 17/07/2013 16:39, Sergey Beryozkin wrote:
Hi Francesco,
How do you use WebClient, let me know and I'll will check
(restClientFactory is injected via Spring)
restClientFactory.setServiceClass(SchemaService.class);
final T serviceProxy = restClientFactory.create(SchemaService.class);
WebClient.client(serviceProxy).type(MediaType.APPLICATION_JSON).accept(MediaType.APPLICATION_JSON);
then
serviceProxy.read(AttributableType.USER, SchemaType.NORMAL, "firstname"));
this last statement throws the exception reported below.
These are the last lines of the CXF client logging when executing the
code above:
16:13:18.808 [main] DEBUG o.a.cxf.phase.PhaseInterceptorChain - Chain
org.apache.cxf.phase.PhaseInterceptorChain@555bc78f was created. Current
flow:
receive [LoggingInInterceptor]
pre-protocol-frontend [ClientResponseFilterInterceptor]
16:13:18.808 [main] DEBUG o.a.cxf.phase.PhaseInterceptorChain - Invoking
handleMessage on interceptor
org.apache.cxf.interceptor.LoggingInInterceptor@2b95b0f5
16:13:18.810 [main] INFO o.a.c.i.LoggingInInterceptor - Inbound Message
----------------------------
ID: 1
Response-Code: 200
Encoding: UTF-8
Content-Type: application/json;charset=UTF-8
Headers: {content-type=[application/json;charset=UTF-8], Date=[Wed, 17
Jul 2013 14:13:18 GMT], Server=[Apache-Coyote/1.1],
transfer-encoding=[chunked]}
Payload:
{"name":"firstname","type":"String","mandatoryCondition":"false","enumerationValues":null,"enumerationKeys":null,"multivalue":false,"uniqueConstraint":false,"readonly":false,"conversionPattern":null,"validatorClass":null}
--------------------------------------
16:13:18.810 [main] DEBUG o.a.cxf.phase.PhaseInterceptorChain - Invoking
handleMessage on interceptor
org.apache.cxf.jaxrs.client.spec.ClientResponseFilterInterceptor@7aaa977
java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to
org.apache.syncope.common.to.AbstractSchemaTO
Thanks for your support!
Regards.
On 17/07/13 15:20, Francesco Chicchiriccò wrote:
Hi all,
I have a quite silly question, probably due to my inexperience with CXF.
Basically, in Syncope we have a set of CXF services producing both XML
and JSON (via Jackson).
At high level, I have troubles when reading JSON payload, via WebClient;
the same input string (received as Payload), when given to a bare
Jackson's ObjectMapper instance, works like a charm.
More in detail, the CXF service configuration is the one at [1].
When issuing, with header "Accept: application/json", an HTTP GET
/syncope/cxf/schemas/user/NORMAL/fullname (e.g. read() as defined at
[2]), it returns
{
"name": "fullname",
"type": "String",
"mandatoryCondition": "true",
"enumerationValues": null,
"enumerationKeys": null,
"multivalue": false,
"uniqueConstraint": true,
"readonly": false,
"conversionPattern": null,
"validatorClass": null
}
which looks correct; in fact I am easily able to deserialize such
input via
ObjectMapper mapper = new ObjectMapper();
SchemaTO actual = mapper.readValue(writer.toString(),
SchemaTO.class);
but when I try to use WebClient for accessing the same read() method I
get stuck with
ClassCastException: java.util.LinkedHashMap cannot be cast to
org.apache.syncope.common.to.AbstractSchemaTO
which looks definitely like a Jackson exception.
For additional reference, here is my client's Spring configuration [3]
(see 'restClientFactory') and the AbstractSchemaTO [4] and SchemaTO
classes [5].
Nevertheless to say, switching to "Accept: application/xml" makes
everything work again.
I am using CXF 2.7.6-SNAPSHOT (this in order to be able to use Jackson
2.2.2).
Any hint?
Regards.
[1]
https://svn.apache.org/repos/asf/syncope/trunk/core/src/main/resources/restContext.xml
[2]
https://svn.apache.org/repos/asf/syncope/trunk/common/src/main/java/org/apache/syncope/common/services/SchemaService.java
[3]
https://github.com/ilgrosso/syncopeRestClient/blob/master/src/main/resources/applicationContext.xml
[4]
https://svn.apache.org/repos/asf/syncope/trunk/common/src/main/java/org/apache/syncope/common/to/AbstractSchemaTO.java
[5]
https://svn.apache.org/repos/asf/syncope/trunk/common/src/main/java/org/apache/syncope/common/to/SchemaTO.java
--
Francesco Chicchiriccò
ASF Member, Apache Syncope PMC chair, Apache Cocoon PMC Member
http://people.apache.org/~ilgrosso/
