Since i am prety much new to Apache camel and especially Rest DSL, I thought of trying a sample of Rest DSL.
So i created a camel-config.xml as:
<?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>and my route class is :
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"); }}and my web.xml is :
<?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>Now i have created a war file of my restProject and i deployed it on tomcat. Provided all the neccessary jars in the lib folder of tomcat. I am using camel 2.14.
Now when i start my tomcat, During startup i get error as :
SEVERE: Context initialization failedorg.apache.camel.RuntimeCamelException: java.lang.IllegalStateException: Cannot find RestConsumerFactory in Registry oras 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(SimpleApplicationEventMulticaster.java:96) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334) 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 moreI am trying to figure out for the past two days, Why i am getting this error. Really looking forward to your solutions. Thanks in advance..