[jira] Commented: (AXIS2-4662) Improve Spring Integration for Axis2

["Andreas Veithen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AXIS2-4662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849912#action_12849912 ] 

Andreas Veithen commented on AXIS2-4662:
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Note that the existing solution addresses a different use case, namely that of embedding Spring inside a service archive (i.e. running a Spring container inside Axis2). Axis2 indeed doesn't provide a solution to embed Axis2 inside a Spring container. While your PoC may be a starting point, it lacks a very important aspect: dependency injection. How would you address a use case where references to some other beans need to be injected into WeatherSpringService?

> Improve Spring Integration for Axis2
> ------------------------------------
>
>                 Key: AXIS2-4662
>                 URL: https://issues.apache.org/jira/browse/AXIS2-4662
>             Project: Axis2
>          Issue Type: Improvement
>          Components: kernel
>    Affects Versions: 1.5.1
>            Reporter: Stephan van Hugten
>         Attachments: POC_Axis2.zip
>
>
> I wanted to create an application that has tight integration between Axis2 webservices and Spring. There is already a solution presented at the Axis2 website, http://ws.apache.org/axis2/1_5_1/spring.html, but I found that solution very cumbersome in my opinion and doesn't support the JSR 181 annotations.
> With my proposed approach it is possible to fully integrate the Axis2 run-time with a spring container, whether it is stand-alone or in a web server such as Tomcat. This solution also supports both the JSR 181 annotated classes and the regular AAR-files.
> To fully integrate Axis2 with Spring I have overridden the SimpleAxis2Server class used by the standard stand-alone run-time. A full listing of this class is included in my example application.
> The important stuff is in line 21 up to 36. First it determines the absolute path of the repository and config location parameters. Then it passes those to the AxisRunner constructor (lines 10 to 13) and starts the server. After it successfully starts the Axis2 server it returns the bean to the Spring Container.
> After the creation of the bean it will invoke setDeployedWebservices (lines 46 to 51) which will cycle through the passed webservice classes and deploy them at the created run-time. That's it! No additional configuration or packaging is needed. If the Spring container starts up, so does the Axis2 run-time and the webservices get deployed.
> The needed configuration in order to integrate Axis2 is quite simple. Below is a complete listing of my applicationContext.xml (Spring 2.5.6):
> <?xml version="1.0" encoding="UTF-8"?>
> <beans xmlns="namespace stuff">
>   
>   <bean name="axisServer" class="com.example.poc.server.AxisRunner" factory-method="create" scope="singleton">
>   	<constructor-arg value="repository" />
>   	<constructor-arg value="config/axis2.xml" />
>   	<property name="deployedWebservices">
>   		<props>
>   			<prop key="WeatherSpringService">
> com.example.poc.webservice.WeatherSpringService
> </prop>
>   		</props>
>   	</property>
>   </bean>
> </beans>
> With a little bit more effort I think it's also possible to integrate this solution with the Spring component scan, making it possible to annotate the webservice classes and the run-time with @component. I have tested my war-project with Tomcat 6 and Sun Webserver 7.

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