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https://issues.apache.org/jira/browse/CAMEL-20290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18047665#comment-18047665
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Claus Ibsen commented on CAMEL-20290:
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I think SB auto-configure configures the default values, so 20 will be set even
that it was not declared in application.properties
> Camel Spring Boot Starters configuration in Java and ConfigurationProperties
> conflict
> -------------------------------------------------------------------------------------
>
> Key: CAMEL-20290
> URL: https://issues.apache.org/jira/browse/CAMEL-20290
> Project: Camel
> Issue Type: Improvement
> Components: camel-spring-boot
> Affects Versions: 4.x
> Reporter: John Poth
> Priority: Minor
>
> It would be cool if we could find a way to reconcile:
> 1) Starter configurations via _ConfigurationProperties_
> 2) Stater configurations in Java
> in a way that's clear for the user. For example the following configuration
> attempt in Java fails :
> {code:java}
> @Bean("http")
> public HttpComponent http(){
> return ComponentsBuilderFactory.http()
> .connectionsPerRoute(1).
> .build();
> }
> {code}
> As the _ConfigurationProperties_ kicks in afterwards and the
> _connectionsPerRoute_ will be set to the default 20 at runtime. The user can
> disable this by setting camel.component.http.customizer.enabled=false but
> that removes the ability to configure the component from
> application.properties files etc...
> A workaround could be something like:
> {code:java}
> @Bean("http")
> public HttpComponent myHttp(HttpComponentConfiguration config,
> CamelContext camelContext) {
> HttpComponent httpComponent = new HttpComponent();
> httpComponent.setCamelContext(camelContext);
> // copy external configuration
> CamelPropertiesHelper.copyProperties(camelContext, config,
> httpComponent);
> // Custom config
> httpComponent.setConnectionsPerRoute(1);
> return httpComponent;
> }
> {code}
> It would be also cool to have a clear priority order e.g if
> _connectionsPerRoute_ is set in Java and application.properties which takes
> precedence. Also, configuring multiple instances of the same component comes
> to mind.
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