Failed to route event via endpoint

Discussion:

laji hajar

2012-09-18 10:47:29 UTC

Hi Ian,
 
I am having the same problem with my project and I have tried all the tips David gave, but nothing is working, still having " org.mule.api.transport.NoReceiverForEndpointException: There is no receiver registered on connector "connector.VM.mule.default" for endpointUri vm://ChitChat"
 
Did you fix the problem ??

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Fake David Dossot

2012-09-18 14:37:29 UTC

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- Mule version?
 
- Mule config.
 
- Java code that throws the NoReceiverForEndpointException?

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laji hajar

2012-09-18 15:43:29 UTC

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Hi ,
 
Thank you a lot , I already fixed it , I was using a sub-flow with a VM endpoint as entry of the service. I haven't noticed that mule did configure it as an outbound and not an inbound so obviously , no endpoint was listening on that address (vm://).
 
But I have a question if you can answer please :
 
Suppose we have an HTTP endpoint request-response as the inbound-outbound endpoint of a flow. In this flow we call another one flow2 . Can the flow2 use the HTTP outbound of the first flow to post its result ?? or we should definitly use another HTTP ?
 
Thanks again.

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laji hajar

2012-09-18 15:45:29 UTC

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or is there another way to use an inbound vm endpoint in a sub-flow ?

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David Dossot

2012-09-18 15:50:29 UTC

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If you call flow2 from flow1 in a synchronous manner, its response will be used for the HTTP response.
 
Also note that you can invoke flows directly with flow-ref without using VM endpoints.

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laji hajar

2012-09-19 14:48:30 UTC

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Thank you. I my project there is 3 services proposed to the user and he chooses to which one he wants to send the MuleMessage that's why I can't use the flow-ref. I have also tryed to call the flow2 using client.send() (synchronously) but It doesn't return the result to the HTTP endpoint of the first flow. a dialog box appears and ask if I want to save or open the file (application/octet-stream)

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David Dossot

2012-09-19 15:08:29 UTC

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Post by laji hajar
the user and he chooses to which one he wants to send the MuleMessage that's why I can't use the flow-ref

You could, with a choice router.

Post by laji hajar
I have also tryed to call the flow2 using client.send() (synchronously) but It doesn't return the result to the HTTP endpoint of the first flow

client.send to what endpoint? config?

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laji hajar

2012-09-19 15:26:30 UTC

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Yes client.sent to endpoint :
 
Here is the config fle:
 
<code>
 
<mule xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:vm="http://www.mulesoft.org/schema/mule/vm" xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns:servlet="http://www.mulesoft.org/schema/mule/servlet" xmlns:jersey="http://www.mulesoft.org/schema/mule/jersey" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation" xmlns:spring="http://www.springframework.org/schema/beans" xmlns:core="http://www.mulesoft.org/schema/mule/core" xmlns:xsi="http://www.w3&#46
;org/2001/XMLSchema-instance" version="CE-3.3.0" xsi:schemaLocation="
 
http://www.mulesoft.org/schema/mule/vm http://www.mulesoft.org/schema/mule/vm/current/mule-vm.xsd
 
http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
 
http://www.mulesoft.org/schema/mule/servlet http://www.mulesoft.org/schema/mule/servlet/current/mule-servlet.xsd
 
http://www.mulesoft.org/schema/mule/jersey http://www.mulesoft.org/schema/mule/jersey/current/mule-jersey.xsd
 
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
 
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd ">
 
<custom-transformer class="org.mule.example.hello.StringToNameString" name="StringToNameString" doc:name="Java"/>
 
<custom-transformer class="org.mule.example.hello.NameStringToChatString" name="NameStringToChatString" doc:name="Java"/>
 
<custom-transformer class="org.mule.example.hello.ChatStringToString" name="ChatStringToString" doc:name="Java"/>
 
<custom-transformer class="org.mule.example.hello.HttpRequestToNameString" name="HttpRequestToNameString" doc:name="Java"/>
 
<custom-transformer class="org.mule.example.hello.ExceptionToString" name="ExceptionToString" doc:name="Java"/>
 
<custom-transformer class="org.mule.transport.servlet.transformers.HttpRequestToParameter" name="HttpRequestToParameter" doc:name="Java"/>
 
<custom-transformer class="org.mule.transformer.simple.ObjectToString" name="ObjectToString" doc:name="Java"/>
 
<http:connector name="HTTP_HTTPS" cookieSpec="netscape" validateConnections="true" sendBufferSize="0" receiveBufferSize="0" receiveBacklog="0" clientSoTimeout="10000" serverSoTimeout="10000" socketSoLinger="0" proxyHostname="localhost" proxyPort="8080" doc:name="HTTP\HTTPS"/>
 
<byte-array-to-string-transformer name="Byte_Array_to_String" doc:name="Byte Array to String"/>
 
<vm:connector name="VM" queueTimeout="1000" dynamicNotification="true" validateConnections="false" doc:name="VM">
 
<vm:queue-profile maxOutstandingMessages="10"/>
 
</vm:connector>
 
<flow name="HelloWorld" doc:name="HelloWorld" processingStrategy="synchronous">
 
<composite-source>
 
<http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8888" doc:name="Http Endpoint"/>
 
<servlet:inbound-endpoint path="name" responseTimeout="10000" doc:name="Servlet Endpoint"/>
 
</composite-source>
 
<message-filter doc:name="Filter favicon">
 
<not-filter>
 
<wildcard-filter pattern="/favicon.ico" caseSensitive="true"/>
 
</not-filter>
 
</message-filter>
 
<transformer ref="HttpRequestToNameString" doc:name="Transform Http Request to NameString"/>
 
<component class="org.mule.example.hello.Greeter" doc:name="Greeter Component">
 
<custom-interceptor class="org.mule.example.hello.EnveloppeInterceptor"/>
 
</component>
 
<catch-exception-strategy doc:name="Catch Exception Strategy">
 
<logger message="#[payload]" level="ERROR" doc:name="Log Error"/>
 
</catch-exception-strategy>
 
</flow>
 
<sub-flow name="ChitChat" doc:name="ChitChat">
 
<transformer ref="NameStringToChatString" doc:name="Transform NameString to ChatString"/>
 
<component class="org.mule.example.hello.ChitChatter" doc:name="ChitChatter"/>
 
<transformer ref="ChatStringToString" doc:name="Transform ChatString to String"/>
 
</sub-flow>
 
<flow name="Rest" doc:name="Rest" processingStrategy="synchronous">
 
<vm:inbound-endpoint exchange-pattern="one-way" path="Rest" doc:name="VM"/>
 
<custom-transformer class="org.mule.example.hello.VmToString" doc:name="Transform VmToString"/>
 
<jersey:resources doc:name="Rest">
 
<component class="org.mule.example.hello.RestComponent"/>
 
</jersey:resources>
 
</flow>
 
<flow name="EchoService" doc:name="EchoService" processingStrategy="synchronous">
 
<vm:inbound-endpoint exchange-pattern="one-way" path="Echo" doc:name="VM"/>
 
<custom-transformer class="org.mule.example.hello.VmToString" doc:name="Transformer VmToString"/>
 
<append-string-transformer message="...Have a nice day!" doc:name="Append String"/>
 
<echo-component doc:name="Echo"/>
 
</flow>
 
</mule>
 
</code>
 
<code>
 
public class EnveloppeInterceptor extends AbstractEnvelopeInterceptor {
 
private MessageProcessor next;
 
ServiceChoice service = new ServiceChoice();
 
public MuleEvent before(MuleEvent invocation){
 
//................................
 
return invocation;
 
}
 
public MuleEvent after(MuleEvent invocation){
 
//................................
 
return invocation;
 
}
 
@Override
 
public void setListener(MessageProcessor listener) {
 
next = listener;
 
}
 
@Override
 
public MuleEvent last(MuleEvent event, ProcessingTime time, long startTime, boolean exceptionWasThrown)throws MuleException {
 
try {
 
if(exceptionWasThrown){
 
System.out.println("Process failed...Need to call another service :\n");
 
try {
 
service.serviceChoice(event);
 
} catch (IOException e) {
 
e.printStackTrace();
 
}
 
}else{
 
final String PATHFILE = ".\src\main\app\mule-config.xml" ;
 
//Create a MuleContextFactory
 
MuleContextFactory muleContextFactory = new DefaultMuleContextFactory();
 
//create the configuration builder and optionally pass in one or more of these
 
ConfigurationBuilder builder = new SpringXmlConfigurationBuilder(PATHFILE);
 
//The actual context builder to use
 
MuleContextBuilder contextBuilder = new DefaultMuleContextBuilder();
 
//Create the context
 
MuleContext context = muleContextFactory.createMuleContext(builder, contextBuilder);
 
//Start the context
 
context.start();
 
//Create the client with the context
 
MuleClient client = new MuleClient(context);
 
client.send("vm://Echo", event.getMessage());
 
}
 
} catch (Exception e) {
 
e.printStackTrace();
 
}
 
return event;
 
}
 
}
 
</code>
 
Mule version : 1.3
 
and I get no error message just this :
 
<a href="https://d37wxxhohlp07s.cloudfront.net/s3_images/793585/untitled.bmp?1348068362" rel="nofollow"><img alt="" src="https://d37wxxhohlp07s.cloudfront.net/s3_images/793585/untitled_inline.bmp?1348068362" /></a>

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David Dossot

2012-09-19 15:40:30 UTC

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Mule 1.3?!? It's 6 years old! Time to upgrade, the latest community edition is 3.3.0.

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David Dossot

2012-09-19 15:41:30 UTC

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Oh, you're talking about the version of Studio, the IDE, not Mule.

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David Dossot

2012-09-19 15:44:30 UTC

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I really do not understand what you're trying to achieve.
 
You use a custom interceptor to bootstrap a second Mule instance (within the main Mule instance) just to perform a VM send.
 
Why not just using a VM outbound endpoint?

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laji hajar

2012-09-20 10:25:30 UTC

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Sorry , yes it's the IDE

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laji hajar

2012-09-20 10:31:30 UTC

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Because we don't know the choice of the user before. so when he enters his choice, I use the second mule instance to send the mule message to the required service.

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Fake David Dossot

2012-09-20 14:58:30 UTC

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This is just way too complex a design, I urge you to review it.
 
Why don't you use a dynamic outbound VM endpoint, ie using an expression in it, so on the fly construct the dispatch address?

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laji hajar

2012-09-20 15:03:30 UTC

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Thank you this seems easier (I'll let my supervisor know). Thanks again

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