Working with Cairngorm

[martin911]

In our Flex enviroment we are using a mvc framework from adobe called Cairngorm. In carngorm the services are configured in Services.mxml like this:

<?xml version="1.0" encoding="utf-8"?>
<cairngorm:ServiceLocator
	xmlns:mx="http://www.adobe.com/2006/mxml"
	xmlns:cairngorm="com.adobe.cairngorm.business.*">
	
	<!-- Login Service -->
	
	<mx:RemoteObject id="person" showBusyCursor="true"
				destination="person">
		<mx:method name="create"/>		
		<mx:method name="save"/>
		<mx:method name="remove"/>
		<mx:method name="findByUserName"/>
		<mx:method name="findIdByUserName"/>
		<mx:method name="findByLastName"/>
		<mx:method name="findCoachAthlets"/>
		<mx:method name="findCoaches"/>
		<mx:method name="findByEmail"/>
		<mx:method name="getAll"/>
	</mx:RemoteObject>
		
</cairngorm:ServiceLocator>

In normal the Service is defined in remoting-config.xml:

<?xml version="1.0" encoding="UTF-8"?>
<service id="remoting-service" 
    class="flex.messaging.services.RemotingService">

    <adapters>
        <adapter-definition id="java-object"                      class="flex.messaging.services.remoting.adapters.JavaAdapter"  default="true"/>
    </adapters>

    <default-channels>
        <channel ref="my-amf"/>
    </default-channels>

	<destination id="person">
            <properties>
                <factory>spring</factory>
                <source>person</source>
            </properties>
	</destination>		
</service>

The example app in the spring-flex distribution shows us to empty the remoteing-config.xml. Then I configured the web-application-config.xml like this:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
           http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

    <!-- Includes Backend context -->
    <import resource="classpath:/com/globalfoxsystems/trainingguide/core/config/application-context.xml" />
    
    <!-- Maps request paths at /messagebroker to the BlazeDS MessageBroker -->
	<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <value>
                /messagebroker/*=mySpringManagedMessageBroker
            </value>
        </property>
    </bean>

	<!-- Dispatches requests mapped to a MessageBroker -->
	<bean class="org.springframework.flex.messaging.servlet.MessageBrokerHandlerAdapter"/>

	<!-- Bootstraps and exposes the BlazeDS MessageBroker -->
	<bean id="mySpringManagedMessageBroker" class="org.springframework.flex.messaging.MessageBrokerFactoryBean" />	
    
    <!-- Expose the productService bean for BlazeDS remoting -->
    <bean id="person" class="org.springframework.flex.messaging.remoting.FlexRemotingServiceExporter">
        <property name="messageBroker" ref="mySpringManagedMessageBroker"/>
        <property name="service" ref="personDao"/>        
    </bean>
</beans>

bean with id=person refers to my personDao in my backend. As I understand the documentation id=person is my service tho wich flex refer the methods for the application.

But I can not access to the remote service. Starting Tomcat show me no errors. I can not understan, why it not work or I missunderstood the spring-flex enviroment.
Thank you for your help in advance!

[YoungSoul]

I would be surprised if this was really an issue with Cairngorm - but it might be with your RemoteObject definition. The first thing I would recommend is to download an Http Proxy that understands AMF - such as Charles or Service Capture. This will let you see the exact traffic going back and forth.

Also double check your service-config.xml. If you read the 'how to' blog you will notice that Jeremy changes the endpoint URL of the channel-definition with id="my-amf". He added 'spring' to the path which is what the servlet-mapping specified in the url-pattern.

I assume you are not using hibernate - correct?

Lastely - double check the endpoint attribute onthe RemoteObject and make sure it includes the 'spring' path such as:
endpoint="http://localhost:8080/myapp/spring/messagebroker/amf"

NOTE: I have been using 'spring' but you may have your url-pattern set to something else, or nothing at all. I was just using this to be consistent with the example from the Blog.

[dirk.eismann]

I believe you are mixing up things. In you remoting-config-xml it seems as if you're using the Spring Factory for BlazeDS (made by Jeff Vroom).

This is actually different than using the Spring BlazeDS Integration stuff.

I suggest you head to Christophe's site and download the testdrive distribution to get started without hassle.

Dirk.

[Durden]

We are thinking Cairngorm+Spring ActionScript as a one possible solution for our Flex architecture.

Does Cairngorm work directly with Spring BlazeDS? How about Maven support, for example, do flex-mojo`s compile Cairngorm code?

Too much frameworks, too much choises...