Unable to locate Spring NamespaceHandler

[pchandler]

Runtime: ServiceMix 4.2.

The XML validates in a XML Editor. Any ideas why the XML is not happy in ServiceMix?

Thanks,

Peter.

XML (application/config/spring/routes.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:osgi="http://www.springframework.org/schema/osgi"
    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://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-2.2.0.xsd"> 
          
    <bean id="routesProperties"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="properties">
            <props>
                <prop key="topics.configuration"></prop>
            </props>
        </property>
        <property name="systemPropertiesModeName">
            <value>SYSTEM_PROPERTIES</value>
        </property>
    </bean>


  <camelContext id="tib" xmlns="http://camel.apache.org/schema/spring">
    <routeBuilder ref="routeBuilder"></routeBuilder>  
    <route>
         <from uri="jms:topic:TimeMy"></from>
         <to uri="mybean://controlClient?method=inputSimulationCommand"></to>
      </route>
  </camelContext>
  
   <bean id="routeBuilder" class="com.mycompamy.util.ConfigurableRouteBuilder">
      <constructor-arg value="${topics.configuration}"></constructor-arg>
   </bean>

</beans>

ERROR:

Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://camel.apache.org/schema/spring]
Offending resource: class path resource [application/config/spring/routes.xml]

        at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68)
        at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)
        at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:80)
        at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.error(BeanDefinitionParserDelegate.java:281)
        at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1294)
        at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1287)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:135)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:92)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:507)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:398)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:190)
        ... 39 more

[ffang]

Hi,

Seems you didn't install camel-spring-osgi feature cause this problem.

Freeman

[pchandler]

Freeman,

Thanks for getting back to me,

The camel-spring-osgi feature is installed. Does my bundle need to import anything?

karaf@root> features:list
State         Version                Name                                 Repository
[installed  ] [2.2.0-fuse-02-00    ] camel                                repo-0
[installed  ] [2.2.0-fuse-02-00    ] camel-core                           repo-0
[installed  ] [2.2.0-fuse-02-00    ] camel-spring-osgi                    repo-0

Also: Stack trace looks like: ESB-616

Related issue

[ffang]

Hi,

In OSGi, you should use osgi:camelContext instead.

Aslo, you may need take a look at camel-osgi example shipped with kit.

Freeman

[njiang]

Hi Freeman,

If you are installed camel-spring-osgi bundle, the "http://camel.apache.org/schema/spring" Spring namespace handle will pick the OSGi version of CamelContextFactoryBean to create the camel context.

So you don't need to use this ""http://camel.apache.org/schema/osgi" namespace.

Willem

[njiang]

Please using osgi:list to check if you installed camel-spring and camel-spring-osgi at the same time.

If so, please uninstall the camel-spring as camel-spring and camel-spring-osgi can't be installed at the same time.

From Camel 2.4.0, you just need to install camel-spring as it can handle the OSGi related issue itself

[pchandler]

After a deep drive into Registering a handler in Spring Here was my solution/fix. In the META-INF Directory add file spring.handlers:

http\://camel.apache.org/schema/spring=org.apache.camel.spring.handler.CamelNamespaceHandler
http\://camel.apache.org/schema/spring/v2.2.0=org.apache.camel.spring.handler.CamelNamespaceHandler
http\://camel.apache.org/schema/osgi=org.apache.camel.osgi.CamelNamespaceHandler

This will map the XSD namespace to the correct handler/parser.

Note: I shouldn't have to do this.

[njiang]

AFAIK， camel-spring ships the Spring handle files in it's META-INF directory.

[pchandler]

In my case: Where OSGi Activator is invoking/starting the spring camel context, you need to copy the Spring's schema handler file into the bundle's  META-INF directory.