org.apache.camel.NoSuchBeanException: No bean could be found in the registry for:

Question

I have the following route definition:

@Component
public class CamelRoutes extends RouteBuilder {
    @Override
    public void configure() throws Exception {
           from("seda:second")                   
                .bean("helloWorld?method=smth")    
                .process(exchange -> {
                    System.out.println("Message:" + exchange.getIn().getBody());
                })
                .log("body:${body}");

and following bean:

public static class HelloWorld {
       public void execute(String str){
           System.out.println("HelloWorld#execute: " + str);
       }
        public void smth(String str){
            System.out.println("HelloWorld#smth: " + str);
        }
    }

But application doesn't start.
trace:

org.apache.camel.RuntimeCamelException: org.apache.camel.FailedToCreateRouteException: Failed to create route route4 at: >>> Bean[ref:helloWorld?method=smth] <<< in route: Route(route4)[[From[seda:second]] -> [Bean[ref:helloWorld?me... because of No bean could be found in the registry for: helloWorld?method=smth
    at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1831) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:136) ~[camel-spring-2.20.0.jar:2.20.0]
    at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:174) ~[camel-spring-2.20.0.jar:2.20.0]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:337) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:882) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at SpringBootCamelIntegrationApplication.main(SpringBootCamelIntegrationApplication.java:9) [classes/:na]
Caused by: org.apache.camel.FailedToCreateRouteException: Failed to create route route4 at: >>> Bean[ref:helloWorld?method=smth] <<< in route: Route(route4)[[From[seda:second]] -> [Bean[ref:helloWorld?me... because of No bean could be found in the registry for: helloWorld?method=smth
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1298) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:204) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:1135) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:3714) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3428) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:208) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3236) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3232) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:3255) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:3232) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:3155) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:133) ~[camel-spring-2.20.0.jar:2.20.0]
    ... 15 common frames omitted
Caused by: org.apache.camel.NoSuchBeanException: No bean could be found in the registry for: helloWorld?method=smth
    at org.apache.camel.component.bean.RegistryBean.getBean(RegistryBean.java:94) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.component.bean.RegistryBean.createCacheHolder(RegistryBean.java:69) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.BeanDefinition.createProcessor(BeanDefinition.java:251) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.ProcessorDefinition.makeProcessorImpl(ProcessorDefinition.java:549) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.ProcessorDefinition.makeProcessor(ProcessorDefinition.java:510) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.ProcessorDefinition.addRoutes(ProcessorDefinition.java:226) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1295) ~[camel-core-2.20.0.jar:2.20.0]
    ... 27 common frames omitted

What wrong with my code base ?

update:

According Romat Vottnet advice I've wrote following:

@Component
public class CamelRoutes extends RouteBuilder {
    @Override
    public void configure() throws Exception {

        from("seda:second")                    
                .bean("helloWorld?method=smth()");

    }

    public static class HelloWorld {
        public void execute(String str) {
            System.out.println("HelloWorld#execute: " + str);
        }

        public void smth(String str) {
            System.out.println("HelloWorld#smth: " + str);
        }
    }

    @Bean(name = "helloWorld")
    public HelloWorld helloWorld() {
        return new HelloWorld();
    }
}

But I see:

org.apache.camel.RuntimeCamelException: org.apache.camel.FailedToCreateRouteException: Failed to create route route4 at: >>> Bean[ref:helloWorld?method=smth()] <<< in route: Route(route4)[[From[seda:second]] -> [Bean[ref:helloWorld?me... because of No bean could be found in the registry for: helloWorld?method=smth()
    at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1831) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:136) ~[camel-spring-2.20.0.jar:2.20.0]
    at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:174) ~[camel-spring-2.20.0.jar:2.20.0]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:337) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:882) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
    at SpringBootCamelIntegrationApplication.main(SpringBootCamelIntegrationApplication.java:9) [classes/:na]
Caused by: org.apache.camel.FailedToCreateRouteException: Failed to create route route4 at: >>> Bean[ref:helloWorld?method=smth()] <<< in route: Route(route4)[[From[seda:second]] -> [Bean[ref:helloWorld?me... because of No bean could be found in the registry for: helloWorld?method=smth()
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1298) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:204) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:1135) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:3714) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3428) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:208) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3236) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3232) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:3255) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:3232) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:3155) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:133) ~[camel-spring-2.20.0.jar:2.20.0]
    ... 15 common frames omitted
Caused by: org.apache.camel.NoSuchBeanException: No bean could be found in the registry for: helloWorld?method=smth()
    at org.apache.camel.component.bean.RegistryBean.getBean(RegistryBean.java:94) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.component.bean.RegistryBean.createCacheHolder(RegistryBean.java:69) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.BeanDefinition.createProcessor(BeanDefinition.java:251) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.ProcessorDefinition.makeProcessorImpl(ProcessorDefinition.java:549) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.ProcessorDefinition.makeProcessor(ProcessorDefinition.java:510) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.ProcessorDefinition.addRoutes(ProcessorDefinition.java:226) ~[camel-core-2.20.0.jar:2.20.0]
    at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1295) ~[camel-core-2.20.0.jar:2.20.0]
    ... 27 common frames omitted

when application starts.

I checked - method marked as @Bean is invoked.

Answer 1

I was trying to execute a method under another class using camel beans. so i had to use 'to' instead of bean. this is what worked for me.

        //add class instance and add it to the registry as a bean
    MyService myService = new MyService();

    SimpleRegistry registry = new SimpleRegistry();

    registry.bind("myServiceBean", myService);



    CamelContext context = new DefaultCamelContext(registry);

    context.addRoutes(new RouteBuilder() {
        @Override
        public void configure() throws Exception {
            from("direct:start")
                    .to("bean:myServiceBean?method=messageReciever");
        }
    });
context.start();

Answer 2

The way you give the class name and method to "bean" is wrong! If you wanna use bean then these are acceptable ways for how to work with it:

from("direct:a").bean(ClassName.class , "methodName").to("direct:b");

from("direct:a").bean("registeredClassName","methodName").to("direct:b"); 
// this registered named is the name that you give to spring annotations like
//@Component , @Configuration , @Service , @Controller , @Bean etc...
// If you are using Camel stand alone then registeredClassName is the name that 
// you gave to  camel's registry. 
//For example:

SimpleRegistry simpleRegistry = new SimpleRegistry(); // this class is just a mapper
simpleRegistry.put("registeredClassName",new ClassName());

CamelContext camelContext = new DefaultCamelContext(simpleRegistry);

// In Spring Boot 
@Autowired 
private ClassName instanceOfClassName;
from("direct:a").bean(instanceOfClassName , "methodName").to("direct:b");

And this is the right way for using class and method together like the way you went through:

from("direct:a").to("bean:registeredClassName?method=methodName").to("direct:b");
// remember no parenthesis () for methodName 

from("direct:a").to("bean:FullyQualifiedClassName?method=Name").to("direct:b");

Also this is another way of invoking bean and its' method although it is a little advance and you need to know what is Simple-Language.

from("direct:start").bean("registeredClassName","methodName(${body},${header.customerId},${header.customerType}");

That's all :))

Answer 3

this works:

 from("seda:second")               
     .bean(HelloWorld.class, "smth")

Answer 4

As you're already using Spring, why not annotate your bean with @Component and use an autowired instance inside your route?