CODEWITHSUNDEEP
javaspring-bootroutesapache-camel
Dmytro Chasovskyi
Dmytro Chasovskyi

Reputation: 3641

How to update add/remove routes into Apache Camel under Spring Boot app in runtime?

I need to add/remove Apache Camel routes at a runtime in Spring Boot application. It means that routes should be updated while application is running. It also means that I don't have all routes during the first run of the application and I cannot restart it in order to get them.

I found old answers but still cannot understand how to do it using xml-defined routes. Can you explain how to do it?

Upvotes: 3

Views: 2120

Answers (2)

Dmytro Chasovskyi
Dmytro Chasovskyi

Reputation: 3641

It's possible to add camel.springboot.xml-routes-reload-directory=<monitoring-directory> into application.properties and monitor routes into xml format.

It will reload all routes, so in order to add delete them, it possible to only add delete files with route definitions.

Upvotes: 1

carlito
carlito

Reputation: 33

Put your xml under src/main/resources and invoke the following component :



    @Component 
    public class CamelRoutesLoader {

        @Autowired
        private CamelContext camelContext;

        @Value("${camel-routes-filename:#{null}}")
        private String routesFilename;

        @PostConstruct
        private void loadRoutes() {
            if(routesFilename == null) {
                //error no file name
            }
            try {
                InputStream is = this.getClass().getClassLoader().getResource(routesFilename).openStream();
                RoutesDefinition routes = ModelHelper.loadRoutesDefinition(camelContext, is);
                camelContext.addRouteDefinitions(routes.getRoutes());
            } catch(Exception e) {
                //Impossible to load routes
            }
        }
    }

I call my component after it is initialized by Spring, but you can remove @PostConstruct, make it public and pass it the filename

Upvotes: 2

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