[CAMEL-18683] Priorize RouteTemplate initialization

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.20.0
• Component/s: camel-main
• Estimated Complexity: Unknown
• Assignee: Unassigned
• Reporter: Michael Rambichler
• Created: 03/Nov/22 14:14
• Updated: 18/Dec/22 09:42
• Resolved: 18/Dec/22 09:42

Description

We often struggle the issue of the correct Route naming order dependency:
 
Improvement: Priorize RouteBuilder with RouteTemplates

Testcase:
Name your RouteTemplate: ZTemplate
and another Routebuilder which will use the defined Template in ZTemplate.

The Routebuilder will fail because the ZTemplate Route was not yet added to the routescollections.

Suggestion: Use a dedicated class e.g. RouteTemplateBuilder to prioritize Routebuilder with templates

See: RoutesConfigure.java

private void addDiscoveredRoutes(CamelContext camelContext, List<RoutesBuilder> routes) throws Exception {
   // sort routes according to ordered
   routes.sort(OrderedComparator.get());

   // first add the routes configurations as they are globally for all routes
   for (RoutesBuilder builder : routes) {
      if (builder instanceof RouteConfigurationsBuilder) {
         RouteConfigurationsBuilder rcb = (RouteConfigurationsBuilder) builder;
         LOG.debug("Adding routes configurations into CamelContext from RouteConfigurationsBuilder: {}", rcb);
        camelContext.addRoutesConfigurations(rcb);
      }
   }

// first add the all route templates as they are globally for all routes
for (RoutesBuilder builder : routes) {
   if (builder instanceof RouteTemplateBuilder) {
      LOG.debug("Adding route tempaltes into CamelContext from RoutesBuilder: {}", builder);
      camelContext.addRoutes(builder);
      }
}

   // then add the routes
   for (RoutesBuilder builder : routes) {
      LOG.debug("Adding routes into CamelContext from RoutesBuilder: {}", builder);
      camelContext.addRoutes(builder);
   }
}
}

Issue Links

• relates to: CAMEL-18764 camel-core - templatedRoute builder from Java cannot use templates from other DSLs