I have a question about adding an Apache Camel error handler to my config. I think I am doing something very silly that is probably a basic mistake.
I want to add two types of error handling...
<camel:errorHandler id="errorHandler" type="DefaultErrorHandler"
<camel:redeliveryPolicy maximumRedeliveries="0"/>
</camel:errorHandler>
and
<onException>
<exception>java.sql.SQLException</exception>
<redeliveryPolicy maximumRedeliveries="0"/>
<to uri="log:xml?level=ERROR"/>
</onException>
Every time I add these to my context xml files the xml editor in Eclipse tells me that I have invalid XML content. I must be missing a namespace or something. For the first type of catch all exceptions I am placing that outside my camel context to then reference errorHandlerRef. For the 2nd type of error handling specifically to catch sql exceptions I am placing that in the route itself.
Here is my XML declaration.
<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://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
Can anyone shed some light here pls... thanks
Related
I know I can define Camel routes in stand-alone xml file, using the Blueprint syntax. If I move one of this file in the "deploy" folder of ServiceMix, it automatically becomes an OSGI bundle. My question is, can I set an endpoint to this new bundle, accessible from outside?
I would like to do something like this:
blue_route1.xml
<blueprint>
<camelContext>
<route>
<from uri="http:my_servicemix:8181/blue_route1_endpoint" />
<to uri="jetty:http://server1" />
</route>
</camelContext>
</blueprint>
blue_route1 becomes an OSGI bundle once deployed, but where should I define "blue_route1_endpoint" ? Is it doable?
[UPDATE]
summering, I want that an external WS is able to send messages to blue_route1_endpoint, where the blue_route1 bundle will redirect messages according to Camel routes, without the need to create a new WS "Blue_route1" to deploy in ServiceMix
______________________
| ____________ |
external-->(blue_route1_endpoint)==|==-->|blue_route1|--|-->(http://server1)
WS | |___________| |
|____________________|
ServiceMix
Found it! I didn't get that it's so easy. To make ServiceMix listen on a port, I just have to specify the endpoint using the Camel-jetty component.
So, to answer my question, I solved in this way:
install the camel-jetty component in ServiceMix
features:install camel-jetty
Write the camel-route with Blueprint, in blue_route1.xml file
<?xml version="1.0" encoding="UTF-8"?>
<blueprint
xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0
http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd">
<camelContext xmlns="http://camel.apache.org/schema/blueprint">
<route>
<from uri:="jetty:http:my_servicemix:8181/blue_route1_endpoint">
<to uri="http://localhost:8080/user/services/user?bridgeEndpoint=true&throwExceptionOnFailure=false"/>
</route>
<route>
<from uri="jetty:http://0.0.0.0:6969/sp_role?matchOnUriPrefix=true"/>
<setHeader headerName="Content-Type">
<groovy>"text/xml; charset=utf-8"</groovy>
</setHeader>
<to uri="http://server1"/>
</route>
</camelContext>
</blueprint>
I used a random port 8181 to listen to... but I could choose every number, ServiceMix will automatically start a jetty component, listening and consuming on that port/endpoint.
For SOAP messages you need CXF Component and wsdl file of your webservice. You can configure your endpoint outside of the camelContext like this:
<cxf:cxfEndpoint id="yourId" address="/your/address/to/endpoint"
serviceClass="your.java.ServiceClass"
wsdlURL="path/to/your/wsdl/file.wsdl" />
And in your route use tag like this:
<from uri="cxf:bean:yourId"/>
You need to add namespace and schemaLocation to your blueprint to use cxf namespace, use this:
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:cxf="http://camel.apache.org/schema/blueprint/cxf"
xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
http://camel.apache.org/schema/blueprint/cxf http://camel.apache.org/schema/blueprint/cxf/camel-cxf.xsd
http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd">
So I'm trying to use apache servicemix/camel to aggregate some messages coming through a JMS queue. The logic I have is dead-simple I just want it to use the last message received and only send it through 3 seconds after the last one.
I have servicemix setup as a message broker and I'm able to use it in such a capacity however it doesn't seem to trigger the route. I've never done this before so odds are I'm horribly off-base but here is what I have so far (put this in deploy/fedora-messaging/camel-context.xml)
<?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-2.5.xsd
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd">
<camelContext xmlns="http://camel.apache.org/schema/spring">
<route>
<from uri="activemq:topic:fedora.apim.update.merge"/>
<aggregate completionTimeout="3000">
<correlationExpression>
<simple>header.pid</simple>
</correlationExpression>
<to uri="log:events"/>
<to uri="activemq:topic:fedora.apim.update"/>
</aggregate>
</route>
</camelContext>
<bean id="activemq"
class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="brokerURL" value="tcp://localhost:61616"/>
</bean>
</beans>
The osgi application appears to start and run without error, and messages are received and queued in the topic:fedora.apim.update.merge however they just sit in the queue and never get consumed or pushed out to the destination queue.
I tested your route as a standalone application (outside of a ServiceMix container) with following broker configuration and everything worked as expected:
<broker xmlns="http://activemq.apache.org/schema/core" useJmx="true"
persistent="false">
<transportConnectors>
<transportConnector uri="tcp://localhost:61616" />
</transportConnectors>
</broker>
So, I guess, we can assume that your Camel route definition is not the problem but the ActiveMQ configuration and/or ServiceMix set-up.
EDIT:
Note, that messages to JMS topic destinations are lost if no active subscriber is connected to the destination. If you need some kind of persistence use durable subscribers or JMS queue destinations.
I tried to add bean into blueprint.
Added CXF namespace. But, JBOSS FUSE shows
13:10:28,339 | INFO | NAPSHOT-thread-1 | BlueprintContainerImpl | 14 - org.apache.aries.blueprint.core - 1.0.1.redhat-60024 | Bundle camel-basic is waiting for namespace handlers [http://camel.apache.org/schema/cxf]
So, I remove the cxf and added blueprint namespace
http://camel.apache.org/schema/blueprint/cxf http://camel.apache.org/schema/blueprint/cxf/camel-cxf.xsd
But, still no use, It shows same error for this namespace also.
Do I need to change anything in pom, blueprint.xml r need install anything in jboss fuse?
I have no clue about this.
blueprint.xml
<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:camel="http://camel.apache.org/schema/blueprint" xmlns:cxf="http://camel.apache.org/schema/blueprint/cxf"
xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
http://camel.apache.org/schema/blueprint/cxf http://camel.apache.org/schema/blueprint/cxf/camel-cxf.xsd
http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd">
<camelContext id="blueprintContext"
trace="false"
xmlns="http://camel.apache.org/schema/blueprint">
<route id="httpBridge">
<from uri="jetty:http://localhost:8282/service_sample_proxy/services_proxy/WebserviceClassPort?matchOnUriPrefix=true"/>
<process ref="downloadLogger"/>
<to uri="jetty:http://localhost:8080/service_sample/services/WebserviceClassPort?bridgeEndpoint=true&throwExceptionOnFailure=false"/>
<process ref="downloadLogger"/>
<to uri="bean:helloBean"/>
</route>
</camelContext>
<cxf:cxfEndpoint id="webserviceProxy"
address="http://localhost:8383/service_sample_proxy/services_proxy/WebserviceClassPort"
endpointName="tns:WebserviceClassPort"
serviceName="tns:WebserviceClassService"
wsdlURL="wsdl/webserviceclass.wsdl"
xmlns:tns="http://webservice/" />
<bean id="helloBean" class="org.fusesource.example.HelloBean" />
<bean id="downloadLogger" class="org.fusesource.example.DownloadLogger"/>
</blueprint>
I haven't used this bean in any place. First I need to resolve this problem then I need to use it in route.
I check the
Please help me.
Install all needed features into your Fuse container (see here for more information):
features:addUrl mvn:org.apache.camel.karaf/apache-camel/2.9.0/xml/features
features:install war
features:install cxf
features:install camel-jaxb
features:install camel-blueprint
features:install camel-cxf
Well, I went through all the steps stated above to find out it still does not work in blueprint.
Strangely as soon as the route was dropped in the spring xml and taken out of blueprint everything started working like a magic.
Tried camel-cxf instead cxf and worked with blueprint
I am trying to get a CXF endpoint working on Servicemix 4. I have created a Spring archetype with a CXF endpoint and successfully installed it with Maven. Having run osgi:install - s mvn: it installs onto Servicemix but the logs are displaying:
Application context refresh failed (OsgiBundleXmlApplicationContext(bundle=springdm,
config=osgibundle:/META-INF/spring/*.xml))
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 21 in XML document
from URL [bundle://218.0:0/META-INF/spring/camel-context.xml] is invalid; nested exception is
org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no
declaration can be found for element 'cxf:cxfEndpoint'
I have built this route just on Camel before with the following in my context.xml file:
<beans ...
xmlns:osgi="http://www.springframework.org/schema/osgi"
xmlns:cxf="http://camel.apache.org/schema/cxf"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi.xsd
http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd
http://camel.apache.org/schema/cxf http://camel.apache.org/schema/cxf/camel-cxf.xsd
http://cxf.apache.org/tranposrts/camel http://cxf.apache.org/tranposrts/camel.xsd">
<import resource="classpath:META-INF/cxf/cxf.xml" />
<cxf:cxfEndpoint id="wspoc"
address="http://localhost:8181/ws/ping"
serviceClass="net.ja.smx.springdm.PongImpl" />
<camelContext xmlns="http://camel.apache.org/schema/spring">
<route>
<from uri="cxf:bean:wspoc"/>
<to uri="activemq:helloQ" />
</route>
</camelContext>
This is a clone of a working Camel context file but I cannot see why ServiceMix is throwing the error when it starts. The only difference is that the pom file does not use CXF as a dependency but it is in the section which I took from the online example.
I would be grateful for any pointers for any missing imports or corrections to the context file or anything that I ought to check for.
Many thanks.
Shortly after posting, I discovered that I was missing the camel-cxf dependency in my POM file which causes this error. I also needed to make sure that it was the right version as this caused an error in ServiceMix finding the correct META.cxf file.
I try to set up a camel (Ver. 2.4.0) route in a FUSE (Ver. 4.3.0) ESB/OSGi container.
It should be a simple cxf-proxy to route a WebService call from a 'proxy' address to a real service.
I read several documentation:
CXF Proxy Example
camel cxf component
and set up the following spring configuration:
<?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"
xmlns:osgi="http://www.springframework.org/schema/osgi"
xmlns:cxf="http://camel.apache.org/schema/cxf"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/osgi
http://www.springframework.org/schema/osgi/spring-osgi.xsd
http://camel.apache.org/schema/osgi
http://camel.apache.org/schema/osgi/camel-osgi.xsd
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd
http://camel.apache.org/schema/cxf
http://camel.apache.org/schema/cxf/camel-cxf.xsd">
<import
resource="classpath:META-INF/cxf/cxf.xml" />
<import
resource="classpath:META-INF/cxf/cxf-extension-soap.xml" />
<import
resource="classpath:META-INF/cxf/cxf-extension-http.xml" />
<import
resource="classpath:META-INF/cxf/osgi/cxf-extension-osgi.xml" />
<!-- the proxy service -->
<cxf:cxfEndpoint
id="myServiceProxy"
address="http://localhost:9003/cxf/myService"
serviceClass="foo.bar.iface.MyServiceInterface" />
<!-- my real existing cxf soap service -->
<cxf:cxfEndpoint
id="myService"
address="http://foo.bar/services/myService"
wsdlURL="http://foo.bar/services/myService?wsdl"
serviceClass="foo.bar.iface.MyServiceInterface"
serviceName="s:MyService"
endpointName="s:MyServiceEndpoint"
xmlns:s="http://foo.bar/iface/" />
<!-- route -->
<camel:camelContext>
<camel:route>
<camel:from
uri="cxf:bean:myServiceProxy" />
<camel:to
uri="cxf:bean:myService" />
</camel:route>
</camel:camelContext>
</beans>
Trying to start the bundle in FUSE leads to this exception
karaf#root> Exception in thread "SpringOsgiExtenderThread-22" org.apache.camel.RuntimeCamelException: java.lang.IllegalStateException: Endpoint address should be a relative URI wrt to the servlet address (use '/xxx' for example)
at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1126)
at org.apache.camel.spring.SpringCamelContext.onApplicationEvent(SpringCamelContext.java:103)
at org.apache.camel.spring.CamelContextFactoryBean.onApplicationEvent(CamelContextFactoryBean.java:231)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:97)
I do not know what's wrong. I doubt that my Endpoint address is wrong and I do not know what my servlet address is (there is no cxf:cxfEndoint servelt address attribute).
Any help to lead me in the right direction to solve this problem would be appreciated.
Thanks
Klaus
I finally found out what's wrong.
Instead
<!-- the proxy service -->
<cxf:cxfEndpoint
id="myServiceProxy"
address="http://localhost:9003/cxf/myService"
serviceClass="foo.bar.iface.MyServiceInterface" />
it has to be
<!-- the proxy service -->
<cxf:cxfEndpoint
id="myServiceProxy"
address="/myService"
serviceClass="foo.bar.iface.MyServiceInterface" />
As the first approach worked well running the camel project outside FUSE (in this case a the http server will be started to provide the service) it has to be a relative address inside FUSE.
Inside FUSE the embedded HTTP server which runs on (localhost:8181) will be used and the service url will be extended to http://localhost:8181/cxf/myService.