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https://issues.apache.org/jira/browse/CAMEL-12638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16541562#comment-16541562
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Lukasz commented on CAMEL-12638:
--------------------------------
I'm not really convinced by that [~njiang]. Even in the _Camel in Action
(Second Edition)_ **book, Claus and Jonathan use it a standard bean that can be
called to execute a service not a builder (see _Listing 7.12 JAX-RS_
_REST implementation_)_:_
_@ApplicationScoped
@Path("/api")
public class RulesController \{
@Inject
@Uri ( "direct:inventory" )
private FluentProducerTemplate producer;
@GET
@Produces ( MediaType.APPLICATION_JSON )
@Path ( "/rules/{cartIds}" )
public List<ItemDto> rules( @PathParam ( "cartIds" ) String cartIds ) \{
List<ItemDto> answer = new ArrayList<>();
ItemsDto inventory = producer.request( ItemsDto.class );
[...]
}
}_
Obviously they don't refer to a specific implementation but we can all imagine
which implementation is provided by default. Also if it was supposed to be
*just* a builder I find it misleading that the class actually implements a
_Service_ interface.
> DefaultFluentProducerTemplate is not thread safe
> ------------------------------------------------
>
> Key: CAMEL-12638
> URL: https://issues.apache.org/jira/browse/CAMEL-12638
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.20.2
> Reporter: Lukasz
> Priority: Major
>
> I think we have rediscovered the CAMEL-10820 bug. A body of one request gets
> replaced with a body of proceeding request, in our case we use *request()*
> method instead of *asyncSend()*.
> We use camel together with spring-boot. Consider following code:
>
> {code:java}
> @Service
> public class UseCamelService {
> private FluentProducerTemplate producer;
> @Autowired
> public UseCamelService(FluentProducerTemplate producer) {
> this.producer = producer;
> }
> public String getValueFromCamel(String body) {
> return producer.to("route").withBody(body).request(String.class);
> }
> }
> {code}
> If *UseCamelService.getValueFromCamel()* gets called from two different
> threads it is possible for the latter one to override the body of the first
> one.
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