Hi All,
I am using camel to call REST URLs. In doing so, I am setting the
CamelHttpUri header to override the URI. This works properly with http/https
(Http client 3.x). However, it fails for http4/https4 (Http Client 4.x).
Below is the stack trace for https4
Stacktrace
---------------------------------------------------------------------------------------------------------------------------------------
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at
org.apache.camel.component.http.HttpMethods.createMethod(HttpMethods.java:49)
at
org.apache.camel.component.http.HttpProducer.createMethod(HttpProducer.java:391)
at
org.apache.camel.component.http.HttpProducer.process(HttpProducer.java:95)
at
org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
at
org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)
at
org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at
org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:163)
at
org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:542)
at
org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:120)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at
org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at
org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
at
org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at
org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97)
at
org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:529)
at
org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:497)
at
org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:365)
at
org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:497)
at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:209)
at
org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:139)
at
org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:125)
at
org.apache.camel.example.osgi.MyRouteBuilder.executeCamelRoutes(MyRouteBuilder.java:79)
at
org.apache.camel.example.osgi.MyRouteBuilder.main(MyRouteBuilder.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at
org.apache.camel.component.http.HttpMethods.createMethod(HttpMethods.java:47)
... 28 more
Caused by: java.lang.IllegalStateException: unsupported protocol: 'https4'
at
org.apache.commons.httpclient.protocol.Protocol.lazyRegisterProtocol(Protocol.java:149)
at
org.apache.commons.httpclient.protocol.Protocol.getProtocol(Protocol.java:117)
at org.apache.commons.httpclient.HttpHost.<init>(HttpHost.java:107)
at
org.apache.commons.httpclient.HttpMethodBase.setURI(HttpMethodBase.java:280)
at
org.apache.commons.httpclient.HttpMethodBase.<init>(HttpMethodBase.java:220)
at
org.apache.commons.httpclient.methods.GetMethod.<init>(GetMethod.java:89)
... 33 more
*The camel script that I am using is as below -*
<?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";>
<camelContext xmlns="http://camel.apache.org/schema/spring";
trace="true">
<camel:template id="camelTemplate"/>
<route id="route1">
<from uri="direct:start"/>
<setHeader headerName="CamelHttpMethod">
<constant>GET</constant>
</setHeader>
<to
uri="https4://myapp.com/resource/v2/user?throwExceptionOnFailure=false"/>
<setHeader headerName="employeeName">
<jsonpath>$.consumer[0].employees[0].resources.employeeName</jsonpath>
</setHeader>
<setHeader headerName="CamelHttpMethod">
<constant>GET</constant>
</setHeader>
<setHeader headerName="CamelHttpUri">
<simple>https4://myapp.com${header.employeeName}?size=${header.size}</simple>
</setHeader>
<to uri="https4://myapp.com"/>
</route>
</camelContext>
</beans>
*Also, I have included the dependency for camel-http4. Version = 2.18.0*
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-http4</artifactId>
<version>2.18.0</version>
</dependency>
Can you please tell me what is wrong with the camel script?
*Note: This camel script works if I use http instead of http4.*
Thanks,
Brahmachaitanya
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