Hi Raymond,
thanks for the investigation, but i don't want to override the spring
framework and implement it myself.
I really wonder if there is no better possibility for route templates.
regards
Michael
Am Mi., 2. Nov. 2022 um 15:18 Uhr schrieb ski n <raymondmees...@gmail.com>:
> Hi Michael,
>
> Interesting case. As far as I know, you cannot change the order of the
> components to load while scanning.
>
> It's maybe possible to load the routetemplate definitions before Spring
> starts:
>
> 1. Move the routetemplate definitions (for example the RouteTemplate.java
> file) to a separate package.
> 2. Load that package manually:
>
> @SpringBootApplication
> public class MyCamelApplication {
>
> /**
> * A main method to start this application.
> */
> public static void main(String[] args) {
> setRouteTemplates("org.myorg.routetemplates");
> SpringApplication.run(MyCamelApplication.class, args);
> }
>
> //loads templates in the template package
> public void setRouteTemplates(String packageName) throws Exception {
>
> // create scanner and disable default filters (that is the 'false'
> argument)
> final ClassPathScanningCandidateComponentProvider provider = new
> ClassPathScanningCandidateComponentProvider(false);
> provider.addIncludeFilter(new
> RegexPatternTypeFilter(Pattern.compile(".*")));
>
> // get matching classes defined in the package
> final Set<org.springframework.beans.factory.config.BeanDefinition> classes
> = provider.findCandidateComponents(packageName);
>
> // this is how you can load the class type from BeanDefinition instance
> for (BeanDefinition bean: classes) {
> Class<?> clazz = Class.forName(bean.getBeanClassName());
> Object template = clazz.getDeclaredConstructor().newInstance();
> if(template instanceof RouteBuilder){
> context.addRoutes((RouteBuilder) template);
> }
>
> }
>
> }
>
> }
>
> I haven't tested it, but it is worth a try.
>
> Raymond
>
> On Wed, Nov 2, 2022 at 2:12 PM Michael Rambichler <mich...@rambichler.at>
> wrote:
>
> > Hi all,
> >
> > we are heavily using route templates with camel 3.18.x and Spring boot
> > 2.7.3
> >
> > I still wonder if there is no better possibility to avoid the spring boot
> > component scan order dependency.
> >
> > To reproduce the issue: check out the example from
> >
> >
> https://github.com/apache/camel-spring-boot-examples/tree/main/routetemplate
> > and rename the MyRouteTemplates.java to RouteTemplates.java
> >
> > There we are, your spring boot will initialize your RouteTemplate
> > (RouteTemplates.class) class* after* the RouteBuilder
> > (MyTemplateBuilder.class) and fails with: Cannot find RouteTemplate with
> id
> > myTemplate
> >
> > Are there any better approaches to avoid this Spring Component Scan
> > ordering?
> >
> > BR
> > Michael
> >
>
