Ok, next version, which works with 1 gotcha:
@Component
public class RestRoute extends RouteBuilder {
@Override
public void configure()
throws Exception
{
restConfiguration()
.component("servlet")
.producerComponent("http4")
.bindingMode(RestBindingMode.json);
rest("/candidate")
.post("applyx")
.consumes(MediaType.APPLICATION_JSON_VALUE)
.type(Candidate.class)
.route()
.to("myProcessor")
.marshal().json(JsonLibrary.Jackson)
.setHeader(Exchange.CONTENT_TYPE, constant("application/json"))
.setHeader(Exchange.CONTENT_LENGTH, constant(null))
.to("rest:post:to/candidate/applyx?bridgeEndpoint=true&host={{service:CANDIDATE_SERVICE}}")
.log("FROM = ${body}")
;
}
}
So to the gotcha: I need to add the following prop to the Spring Boot
application.properties file:
spring.jackson.serialization.FAIL_ON_EMPTY_BEANS=false
or else I get the message:
com.fasterxml.jackson.databind.JsonMappingException: No serializer found for
class org.apache.camel.converter.stream.CachedOutputStream$WrappedInputStream
and no properties discovered to create BeanSerializer (to avoid exception,
disable SerializationFeature.FAIL_ON_EMPTY_BEANS)
at
com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:284)
at
com.fasterxml.jackson.databind.SerializerProvider.mappingException(SerializerProvider.java:1110)
at
com.fasterxml.jackson.databind.SerializerProvider.reportMappingProblem(SerializerProvider.java:1135)
at
com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.failForEmpty(UnknownSerializer.java:69)
at
com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.serialize(UnknownSerializer.java:32)
at
com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:292)
at
com.fasterxml.jackson.databind.ObjectWriter$Prefetch.serialize(ObjectWriter.java:1429)
at
com.fasterxml.jackson.databind.ObjectWriter._configAndWriteValue(ObjectWriter.java:1158)
at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:988)
at
org.apache.camel.component.jackson.JacksonDataFormat.marshal(JacksonDataFormat.java:166)
Should I be worried about this?
On Thursday, June 14, 2018 11:56 AM, Steve Hiller <[email protected]> wrote:
Thanks, Claus! Now the following works for posting an object to the test uri
http://localhost:8082/to/candidate/applyx.
But is this the correct way?
@Component
public class RestRoute extends RouteBuilder {
@Override
public void configure()
throws Exception
{
HttpComponent http = getContext().getComponent("http4",
HttpComponent.class);
http.setAllowJavaSerializedObject(true);
restConfiguration()
.component("servlet")
.producerComponent("http4")
.host("localhost")
.port(8082);
Candidate c = new Candidate();
c.setFirstName("Joe");
c.setLastName("Blow");
from("timer://foo?repeatCount=1&delay=5s")
.process(new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getIn().setBody(c);
}})
.marshal().json(JsonLibrary.Jackson)
.setHeader(Exchange.CONTENT_TYPE, constant("application/json"))
.to("rest:post:to/candidate/applyx")
.log("body = ${body}");
}
}
On Thursday, June 14, 2018 5:40 AM, Claus Ibsen <[email protected]> wrote:
Hi
For binding to POJO classes you need to add camel-jackson to the
classpath, and have either JAXB or Jackson annotations on the class as
well.
On Wed, Jun 13, 2018 at 7:34 PM, Roman Vottner <[email protected]> wrote:
> Can you try to define
>
> .bindingMode(RestBindingMode.json)
>
> to your restConfiguration or post() definition? According to the docs
> (http://camel.apache.org/rest-dsl.html) it should enable conversion to/from
> JSON to POJO which according your your posted logs seem to fail.
>
> HTH,
> roman
>
>
>> Am 13.06.2018 um 15:10 schrieb Steve Hiller <[email protected]>:
>>
>> No responses -- Am I doing this completely wrong?
>>
>> On Friday, June 8, 2018 6:07 PM, Steve Hiller <[email protected]> wrote:
>>
>>
>> Hi All,
>>
>> I recently watched Claus' talk called "Developing cloud-ready Camel
>> microservices". I am trying to do the following:
>>
>> rest("/candidate")
>> .post("applyx")
>> .consumes(MediaType.APPLICATION_JSON_VALUE)
>> .type(Candidate.class)
>> .to("direct:passwordlessApply")
>> ;
>>
>>
>> from("direct:passwordlessApply")
>> .setExchangePattern(ExchangePattern.InOnly)
>> .to("http4:{{service:candidate-service}}/api/candidate/applyx")
>> ;
>>
>>
>> where {{service:candidate-service}} also consumes the Candidate class.
>>
>> However, I am seeing the following exception:
>>
>> org.apache.camel.InvalidPayloadException: No body available of type:
>> java.io.InputStream but has value:
>> com.rusa.adapter.mobile.candidate.domain.Candidate@58af86ed...
>> Caused by: [org.apache.camel.NoTypeConversionAvailableException - No type
>> converter available to convert from type:
>> com.rusa.adapter.mobile.candidate.domain.Candidate to the required type:
>> java.io.InputStream with value
>> com.rusa.adapter.mobile.candidate.domain.Candidate@58af86ed...
>> Caused by: org.apache.camel.NoTypeConversionAvailableException: No type
>> converter available to convert from type:
>> com.rusa.adapter.mobile.candidate.domain.Candidate to the required type:
>> java.io.InputStream with value
>> com.rusa.adapter.mobile.candidate.domain.Candidate@58af86ed
>>
>> Any help is most appreciated.
>>
>> Thanks,
>>
>> Steve
>>
>>
>
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
