Auto-Configuration for Camel-Master Service-Selector

[anchialas]

Bug description

We have multiple Camel-Master Service Providers active in our Quarkus camel app with

• Quarkus v3.8.6
• Camel-Quarkus v3.8.3
• Camel v4.4.3

Therefore we would like to replace the default SelectSingle selector [1] with the SelectByOrder implementation. For this we use the property camel.component.master.service-selector. Since an instance is expected as the value, we have also written a simple converter:

@Converter
public class ClusterSelectorConverter {
    @Converter
    public CamelClusterService.Selector convert(String selectorClass) {
        try {
            return (CamelClusterService.Selector)Class.forName(selectorClass).getConstructor().newInstance();
        } catch (Exception ex) {
            throw new IllegalStateException(ex);
        }
    }
}

This all works, but the auto-configuration mechanism [2] takes effect too late: the master component has already been initialized with the default selector [3].

How can the selector be configured “correctly”?

Thank you!

[1] org.apache.camel.support.cluster.ClusterServiceSelectors#DEFAULT_SELECTOR
[2] MainHelper.setPropertiesOnTarget:323
[3] MainHelper.setPropertiesOnTarget:303

[jamesnetherton]

How can the selector be configured “correctly”?

You could get a handle on the master component within a CDI observer and use setServiceSelector to pass in your custom selector. See example here:

https://camel.apache.org/camel-quarkus/next/user-guide/configuration.html#_cdi