Re: Invoking external web service from SE

[Freeman Fang]

Hi,

My comment inline.
On 2010-6-2, at 上午2:41, Amigo_ wrote:


Freeman Fang wrote:

Hi,

My comment inline.
On 2010-6-1, at 上午4:24, Amigo_ wrote:



Freeman Fang wrote:


On 2010-5-30, at 下午11:54, Amigo_ wrote:


Hi,

I need to invoke external web service from SE. I've generated  
codes
for
client using Apache CXF, but any invocations are blocked by
servicemix.

I've searched this forum and I've read that there should a binding
component
between my SE and WS, but I can hardly find any tutorials. I  
will be
very
glad if someone could post any links to tutorials or just clues
explaining
how to ensure communication with external ws over servicemix.

Hi,
In your case you need a cxf bc provider endpoint, so the flow looks
like

SE-->cxf bc providier--> external ws,

You may need take a look at CxfBcProviderTest to get details about
how
it works.

[1]https://svn.apache.org/repos/asf/servicemix/components/bindings/servicemix-cxf-bc/trunk/src/test/java/org/apache/servicemix/cxfbc/CxfBcProviderTest.java

Freeman


Thanks for reply, but I can't make this works yet. I've searched
internet
and found similar post with link to this CxfBcProviderTest.java.

 So we need to create raw SOAP message in order to pass data
instead
of
directly deal with a JavaBean

No, you needn't create raw soap message yourself.
The raw soap message you saw in the test case is just a simple way
to
invoke the cxf se, it's not the key point of that test case.  The
key
point of that test case is cxf se can hold proxy of cxf bc
provider so
that you can invoke external webservice

I assume I have to define cxf bc provider and managed to communicate
with my
generated from wsdl cxf client. I added to my bundle-context.xml -
cxfbc:provider and it looks like:

<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-osgi="http://camel.apache.org/schema/osgi";
xmlns:cxfbc="http://servicemix.apache.org/cxfbc/1.0";
        xsi:schemaLocation="
     http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.0.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://servicemix.apache.org/cxfbc/1.0
http://servicemix.apache.org/cxfbc/1.0/servicemix-cxf-bc.xsd";>

        <camel-osgi:camelContext xmlns="http://camel.apache.org/schema/
spring">
                <route>
                        <from 
uri="timer://myTimer?fixedRate=true&amp;period=30000" />
                        <bean ref="translator" method="translate" />
                </route>
        </camel-osgi:camelContext>

        <bean class="com.amigo.cxf.TranslatorClient" id="translator" />

        <cxfbc:provider wsdl="http://localhost:9090/Translator/translate?
WSDL"
                locationURI="http://localhost:9090/Translator/translate";
                endpoint="tns:translatorSOAP" service="translatorSOAP">
        </cxfbc:provider>

</beans>
One obvious problem I can tell now is you need add
<bean class="org.apache.servicemix.common.osgi.EndpointExporter" />
when you use jbi endpoint in osgi container.
You may need take a look at cxf-wsdl-first-osgi-package example
shipped with kit to get idea how jbi endpoint works with osgi  
package.

Freeman


Hi, thanks for reply. I followed carefully this example and have  
made some
changes to my bundle-context.xml It looks now like this:

<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-osgi="http://camel.apache.org/schema/osgi";
xmlns:cxfbc="http://servicemix.apache.org/cxfbc/1.0";
        xmlns:cxfse="http://servicemix.apache.org/cxfse/1.0";
        xsi:schemaLocation="
      http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.0.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/osgi
http://camel.apache.org/schema/osgi/camel-osgi.xsd
      http://servicemix.apache.org/cxfbc/1.0
http://servicemix.apache.org/cxfbc/1.0/servicemix-cxf-bc.xsd
      http://servicemix.apache.org/cxfse/1.0
http://servicemix.apache.org/cxfse/1.0/servicemix-cxf-se.xsd";>

	<camel-osgi:camelContext xmlns="http://camel.apache.org/schema/ 
spring">
                <route>
                        <from 
uri="timer://myTimer?fixedRate=true&amp;period=3000000" />
                        <bean ref="translator" method="translate" />
                </route>
        </camel-osgi:camelContext>

        <bean class="com.amigo.cxf.TranslatorClient" id="translator" />

        <import resource="classpath:META-INF/cxf/cxf.xml" />
	<import resource="classpath:META-INF/cxf/cxf-extension-http- 
jetty.xml" />
        <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" />
	<import resource="classpath:META-INF/cxf/cxf-extension-http- 
binding.xml" />
	<import resource="classpath:META-INF/cxf/cxf-extension-http- 
jetty.xml" />

You have two
<import resource="classpath:META-INF/cxf/cxf-extension-http- 
jetty.xml" />
here, you should replace one with
<import resource="classpath:META-INF/cxf/cxf-extension-http.xml" />

Freeman
        <cxfse:endpoint>
                <cxfse:pojo>
                        <bean class="com.amigo.cxf.Translator_Service" />
                </cxfse:pojo>
        </cxfse:endpoint>

        <cxfbc:provider
                wsdl="http://localhost:9090/Translator?wsdl";
                locationURI="http://localhost:9090/Translator/translate";
                endpoint="tns:translatorSOAP" service="translatorSOAP">
        </cxfbc:provider>

        <bean class="org.apache.servicemix.common.osgi.EndpointExporter" />

</beans>

But unfortunately it still doesn't work. Now I have error about no  
conduit
initiatior. As far as I could searched in internet it could be  
caused by
lack of the cxf-rt-transports-http-jetty dependency - but i added.
20:29:44,990 | ERROR | myTimer          |  
DefaultErrorHandler              |
rg.apache.camel.processor.Logger  248 | Failed delivery for  
exchangeId:
8a7feae2-5d6e-4e48-af34-1c8721c4dc97. Exhausted after delivery  
attempt: 1
caught: javax.xml.ws.soap.SOAPFaultException: No conduit initiator  
was found
for the namespace http://schemas.xmlsoap.org/soap/http.
javax.xml.ws.soap.SOAPFaultException: No conduit initiator was found  
for the
namespace http://schemas.xmlsoap.org/soap/http.
	at  
org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java: 
146)
        at $Proxy142.translate(Unknown Source)
        at com.amigo.cxf.TranslatorClient.translate(TranslatorClient.java:28)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun 
.reflect 
.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at
sun 
.reflect 
.DelegatingMethodAccessorImpl 
.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
	at  
org.apache.camel.component.bean.MethodInfo.invoke(MethodInfo.java:214)
        at
org.apache.camel.component.bean.MethodInfo$1.proceed(MethodInfo.java: 
133)
        at
org 
.apache 
.camel.component.bean.BeanProcessor.process(BeanProcessor.java:137)
        at
org 
.apache 
.camel 
.management 
.InstrumentationProcessor.process(InstrumentationProcessor.java:67)
        at
org 
.apache 
.camel 
.processor.DelegateProcessor.processNext(DelegateProcessor.java:53)
        at
org 
.apache 
.camel.processor.DelegateProcessor.proceed(DelegateProcessor.java:82)
        at
org 
.apache 
.camel 
.processor 
.interceptor.TraceInterceptor.process(TraceInterceptor.java:93)
        at
org 
.apache 
.camel 
.management 
.InstrumentationProcessor.process(InstrumentationProcessor.java:67)
        at
org 
.apache 
.camel 
.processor 
.RedeliveryErrorHandler.processExchange(RedeliveryErrorHandler.java: 
177)
        at
org 
.apache 
.camel 
.processor 
.RedeliveryErrorHandler 
.processErrorHandler(RedeliveryErrorHandler.java:143)
        at
org 
.apache 
.camel 
.processor 
.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:88)
        at
org 
.apache 
.camel 
.processor.DefaultErrorHandler.process(DefaultErrorHandler.java:49)
        at
org 
.apache.camel.processor.DefaultChannel.process(DefaultChannel.java: 
228)
        at
org 
.apache 
.camel 
.processor.UnitOfWorkProcessor.processNext(UnitOfWorkProcessor.java: 
66)
        at
org 
.apache 
.camel.processor.DelegateProcessor.process(DelegateProcessor.java:48)
        at
org 
.apache 
.camel 
.management 
.InstrumentationProcessor.process(InstrumentationProcessor.java:67)
        at
org 
.apache 
.camel 
.component.timer.TimerConsumer.sendTimerExchange(TimerConsumer.java: 
103)
        at
org.apache.camel.component.timer.TimerConsumer 
$1.run(TimerConsumer.java:50)
        at java.util.TimerThread.mainLoop(Timer.java:534)
        at java.util.TimerThread.run(Timer.java:484)
Caused by: org.apache.cxf.BusException: No conduit initiator was  
found for
the namespace http://schemas.xmlsoap.org/soap/http.
        at
org 
.apache 
.cxf 
.transport 
.ConduitInitiatorManagerImpl 
.getConduitInitiator(ConduitInitiatorManagerImpl.java:112)
        at
org 
.apache 
.cxf 
.endpoint 
.AbstractConduitSelector 
.getSelectedConduit(AbstractConduitSelector.java:73)
        at
org 
.apache 
.cxf 
.endpoint.UpfrontConduitSelector.prepare(UpfrontConduitSelector.java: 
61)
        at
org 
.apache 
.cxf.endpoint.ClientImpl.prepareConduitSelector(ClientImpl.java:715)
        at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:478)
        at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:310)
        at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:262)
	at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java: 
73)
	at  
org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java: 
124)
        ... 26 more


My earlier error with org.apache.cxf.bus.CXFBusFactory was probably  
caused
by cxf-bundle - because my own web service after installation of  
this bundle
started to output same error, so uninstalled this bundle.
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--
Freeman Fang
------------------------
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