Erreur lors de la création de repos de service à l'aide d'apache camel

Depuis que je suis petite quantité de nouveau à Apache camel et surtout Reste DSL, j'ai pensé à essayer un échantillon de Repos DSL.

J'ai donc créé un camel-config.xml comme:

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:camel="http://camel.apache.org/schema/spring"
       xsi:schemaLocation="
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">

  <!-- use camel-metrics route policy to gather metrics for all routes -->
  <!-- bean id="metricsRoutePolicyFactory" class="org.apache.camel.component.metrics.routepolicy.MetricsRoutePolicyFactory"/-->

  <!-- a rest service which uses binding to/from pojos -->
  <bean id="userRoutes" class="org.apache.camel.example.rest.UserRouteBuilder"/>

  <!-- a bean for user services -->
  <bean id="userService" class="org.apache.camel.example.rest.UserService"/>

  <camelContext id="myCamel" xmlns="http://camel.apache.org/schema/spring">
    <routeBuilder ref="userRoutes"/>
  </camelContext>

</beans>

et ma route est la classe :

package org.apache.camel.example.rest;

import org.apache.camel.builder.RouteBuilder;

/**
 * Define REST services using the Camel REST DSL
 */
public class UserRouteBuilder extends RouteBuilder {

    public void configure() throws Exception {
        rest("/say").get("/hello").to("direct:hello").get("/bye")
                .consumes("application/json").to("direct:bye").post("/bye")
                .to("mock:update");
        from("direct:hello").transform().constant("Hello World");
        from("direct:bye").transform().constant("Bye World");
    }

}

et mon web.xml est :

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>My Camel Rest Application</display-name>
<!-- location of Camel Spring xml files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<!-- to use Java DSL -->
<param-value>classpath:camel-config.xml</param-value>
<!-- to use XML DSL, then enable me, and disable Java DSL above
<param-value>classpath:camel-config-xml.xml</param-value>
-->
</context-param>
<!-- the listener that kick-starts Spring -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- to setup Camel Servlet -->
<servlet>
<display-name>Camel Http Transport Servlet</display-name>
<servlet-name>CamelServlet</servlet-name>
<servlet-class>org.apache.camel.component.servlet.CamelHttpTransportServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- START SNIPPET: e1 -->
<!-- to setup Camel Swagger api servlet -->
<servlet>
<servlet-name>ApiDeclarationServlet</servlet-name>
<servlet-class>org.apache.camel.component.swagger.DefaultCamelSwaggerServlet</servlet-class>
<init-param>
<!-- we specify the base.path using relative notation, that means the actual path will be calculated at runtime as
http://server:port/contextpath/rest -->
<param-name>base.path</param-name>
<param-value>rest</param-value>
</init-param>
<init-param>
<!-- we specify the api.path using relative notation, that means the actual path will be calculated at runtime as
http://server:port/contextpath/api-docs -->
<param-name>api.path</param-name>
<param-value>api-docs</param-value>
</init-param>
<init-param>
<param-name>api.version</param-name>
<param-value>1.2.3</param-value>
</init-param>
<init-param>
<param-name>api.title</param-name>
<param-value>User Services</param-value>
</init-param>
<init-param>
<param-name>api.description</param-name>
<param-value>Camel Rest Example with Swagger that provides an User REST service</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- swagger api declaration -->
<servlet-mapping>
<servlet-name>ApiDeclarationServlet</servlet-name>
<url-pattern>/api-docs/*</url-pattern>
</servlet-mapping>
<!-- END SNIPPET: e1 -->
<!-- define that url path for the Camel Servlet to use -->
<servlet-mapping>
<servlet-name>CamelServlet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
<!-- START SNIPPET: e2 -->
<!-- enable CORS filter so people can use swagger ui to browse and test the apis -->
<filter>
<filter-name>RestSwaggerCorsFilter</filter-name>
<filter-class>org.apache.camel.component.swagger.RestSwaggerCorsFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>RestSwaggerCorsFilter</filter-name>
<url-pattern>/api-docs/*</url-pattern>
<url-pattern>/rest/*</url-pattern>
</filter-mapping>
<!-- END SNIPPET: e2 -->
<welcome-file-list>
<welcome-file>home.html</welcome-file>
</welcome-file-list>
</web-app>

Maintenant, j'ai créé un fichier war de mon restProject et j'ai déployé sur tomcat. Pourvu de tous les agréments nécessaires pots dans le dossier lib de tomcat. Je suis à l'aide de chameau 2.14.

Maintenant, quand je démarre mon tomcat, Lors du démarrage, j'obtiens l'erreur :

SEVERE: Context initialization failed
org.apache.camel.RuntimeCamelException: java.lang.IllegalStateException: Cannot find RestConsumerFactory in Registry or
as a Component to use
at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1364)
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:122)
at org.apache.camel.spring.CamelContextFactoryBean.onApplicationEvent(CamelContextFactoryBean.java:327)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMult
icaster.java:96)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:3
34)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:
948)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389
)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1100)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1618)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.IllegalStateException: Cannot find RestConsumerFactory in Registry or as a Component to use
at org.apache.camel.component.rest.RestEndpoint.createConsumer(RestEndpoint.java:238)
at org.apache.camel.impl.EventDrivenConsumerRoute.addServices(EventDrivenConsumerRoute.java:65)
at org.apache.camel.impl.DefaultRoute.onStartingServices(DefaultRoute.java:80)
at org.apache.camel.impl.RouteService.warmUp(RouteService.java:134)
at org.apache.camel.impl.DefaultCamelContext.doWarmUpRoutes(DefaultCamelContext.java:2379)
at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:2309)
at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:2091)
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1951)
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1777)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1745)
at org.apache.camel.spring.SpringCamelContext.maybeStart(SpringCamelContext.java:254)
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:120)
... 22 more

Je suis à essayer de comprendre pour les deux derniers jours, Pourquoi j'obtiens cette erreur.
Vraiment impatient de vos solutions. Merci d'avance..

OriginalL'auteur Roy | 2015-01-22

12

Vous avez besoin d'une configuration supplémentaire pour le reste DSL. 4 éléments décrits dans http://camel.apache.org/rest-dsl.html soutiennent reste DSL.Jetez un oeil à la Section [Composants de soutien Reste DSL].Pour la configuration de prendre un coup d'oeil à [Configuration de Repos DSL] section

Ce que vous avez besoin est en fait 2 autres ajouts.

1) Dans votre parcours de builder un reste de la configuration de la partie. Pour servlet composant qui pourrait être restConfiguration().component("servlet") ->plus d'options ici.

Trouver la configuration complète dans ce exemple

2) Ajouter une dépendance en pom.xml.
```
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-servlet</artifactId>
</dependency>
```
Pour une étincelle reste de configuration de prendre un coup d'oeil au code ici

OriginalL'auteur ltsallas

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