On Fri, Jan 6, 2023 at 9:17 AM Martin Pelikán <pelda...@gmail.com> wrote:

> Hi Claus,
>
> I tested your approach but wasn't successful. Reference is stored in
> Properties as text. I confirmed bean is registered in Spring context
> with the proper BeanID.
>
> @Bean(name = "tokenCredential")
> public TokenCredential tokenCredential() {...create an instance}
>
> in debugger (simplified) ->
> camelContext.registry.lookupByName("tokenCredential") -> returns valid
> object
> .....
> .additionalProperties("schema.registry.credential", "#tokenCredential")
>
> results into
> "schema.registry.credential" = "#tokenCredential"
>
> I guess the hash reference notation works only for Camel-specific fields,
> like
> .headerDeserializer("#customKafkaHeaderDeserializer") or
> .headerFilterStrategy("#customHeaderFilterStrategy")   // verified, works
>
> Any ideas?
>

Okay so we should make this possible for additional properties as well. You
are welcome to create a JIRA.



>
> čt 5. 1. 2023 v 18:22 odesílatel Claus Ibsen <claus.ib...@gmail.com>
> napsal:
> >
> > You cannot use complex object types, only string literal, numbers,
> booleans
> > etc.
> >
> > So what you need to do is to create those objects with some bean id
> (spring
> > boot @Bean stuff) and then refer to them via their bean id.
> >
> > Something ala
> >
> >
> > .additionallProperties("xxx", "#myBeanId")
> >
> >
> >
> >
> > On Thu, Jan 5, 2023 at 6:10 PM Martin Pelikán <pelda...@gmail.com>
> wrote:
> >
> > > My case is related to connecting to Azure EventHubs Avro Schema
> Registry.
> > >
> > > TokenCredential cred = new
> > >
> > >
> ClientSecretCredentialBuilder().tenantId("xxx").clientId("xxx").clientSecret("xx").build();
> > > props.put("schema.registry.credential", cred);
> > >
> > > Another case that comes to my mind is with OAUTHBEARER authentication.
> > > Users could supply instantiated AuthenticateCallbackHandler class to
> > > the  sasl.login.callback.handler.class property.
> > >
> > > TokenCredential as part of Properties works with
> > > org.apache.kafka.clients.consumer.KafkaConsumer.
> > >
> > > čt 5. 1. 2023 v 17:59 odesílatel Claus Ibsen <claus.ib...@gmail.com>
> > > napsal:
> > > >
> > > > Whats the real world use-case for additional properties as Object or
> Map.
> > > > What would kafka understand and use these for?
> > > >
> > > > On Thu, Jan 5, 2023 at 5:12 PM Martin Pelikán <pelda...@gmail.com>
> > > wrote:
> > > >
> > > > > Hi Camel experts,
> > > > >
> > > > > I am struggling with a Kafka component and passing in parameters
> via
> > > > > additionalProperties. I am not able to propagate an Object. I
> tested
> > > > > only Endpoint DSL. According to the Camel docs and APIs, I am
> allowed
> > > > > to pass in an instance of Map<String, Object>
> > > > >
> > > > >  Camel version: 3.18.4
> > > > >
> > > > > ----Pseudocode-----
> > > > >
> > > > > @Configuration
> > > > > Class SpringConfig
> > > > >
> > > > > @Bean(name = "autowiredMap")
> > > > > public Map<String, Object> autowiredMap() {
> > > > >     var map = new HashMap<String, Object>();
> > > > >     map.put("testStringKey3", "testStringValue3");
> > > > >     map.put("testObjectKey3", new Object());
> > > > > }
> > > > >
> > > > > -------
> > > > >
> > > > > Class MainRoute extends RouteBuilder()
> > > > >
> > > > > @Autowired
> > > > > @Qualifier("autowiredMap")
> > > > > Map<String, Object> autowiredMap;
> > > > >
> > > > > var map = new HashMap<String, Object>();
> > > > > map.put("testStringKey1", "testStringValue1");
> > > > > map.put("testObjectKey1", new Object());
> > > > >
> > > > > from(kafka(…basic configuration works)
> > > > >     .schemaRegistryURL(http://original.com)
> > > > >     .additionalProperties(map)
> > > > >     .additionalProperties("testStringKey2", "testStringValue2")
> > > > >     .additionalProperties("testObjectKey1", new Object())
> > > > >     .additionalProperties("schema.registry.url",
> > > http://overwritten.com)
> > > > >     .additionalProperties(autowiredMap)...
> > > > >
> > > > > Expected:
> > > > >
> > > > > All properties from all additionalProperties methods are
> propagated to
> > > > > the Kafka Properties configuration object.
> > > > >
> > > > > In reality, Properties will contain the following:
> > > > > schema.registry.url=http://overwritten.com
> > > > > testStringKey1=testStringValue1
> > > > > testStringKey2=testStringValue2
> > > > >
> > > > > Non-string values are not propagated at all. Values from autowired
> Map
> > > > > are not propagated at all. Autowired map is treated as
> > > > > additionalProperties.autowiredMap=HashMap@123456
> > > > >
> > > > > I can see those String values being added to the Kafka Endpoint
> URI:
> > > > >
> > > > >
> > >
> kafka://additionalProperties.testStringKey1=xxx&additionalProperties.testStringKey2=xxx&additionalProperties.schema.registr.url=xxx..
> > > > >
> > > > > Is it a bug in Camel or did I understand the documentation wrong? I
> > > > > can prepare a test case later
> > > > >
> > > > > Best regards,
> > > > >
> > > > > Martin
> > > > >
> > > >
> > > >
> > > > --
> > > > Claus Ibsen
> > > > -----------------
> > > > @davsclaus
> > > > Camel in Action 2: https://www.manning.com/ibsen2
> > >
> >
> >
> > --
> > Claus Ibsen
> > -----------------
> > @davsclaus
> > Camel in Action 2: https://www.manning.com/ibsen2
>


-- 
Claus Ibsen
-----------------
@davsclaus
Camel in Action 2: https://www.manning.com/ibsen2

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