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From "Stephan van Hugten (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AXIS2-4662) Improve Spring Integration for Axis2
Date Fri, 26 Mar 2010 12:12:27 GMT

     [ https://issues.apache.org/jira/browse/AXIS2-4662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stephan van Hugten updated AXIS2-4662:
--------------------------------------

    Attachment: POC_Axis2.zip

You have a very valid point which I didn't consider yet. To address this use case I modified
the Spring configuration and also the AxisServer class.

The Spring configuration now looks like this:

  <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">
  		<list>
  			<value>com.example.poc.webservice.WeatherSpringService</value>
  			<ref bean="DependantWeatherService" />
  		</list>
  	</property>
  </bean>
  
  <bean name="DependantWeatherService" class="com.example.poc.webservice.DependantWeatherSpringService">
  	<property name="weatherSpringService" ref="WeatherService" />
  </bean>

  <bean name="WeatherService" class="com.example.poc.webservice.WeatherSpringService" />

You can put a class name literal in the List or refer to a Spring bean like the one configured
below the run-time. In the AxisRunner.setDeployedWebservices method it call the regular AxisServer.deployService(..)
for class names and a new deployService(bean instance) method for the Spring beans. It looks
like this:

public void deployService(Object serviceImplementation) throws AxisFault {
    	String serviceClassName = serviceImplementation.getClass().getName();
    	if (configContext == null) {
            configContext = getConfigurationContext();
        }
        AxisConfiguration axisConfig = configContext.getAxisConfiguration();
        AxisService service = AxisService.createService(serviceClassName, axisConfig);
        axisConfig.addService(service);
        getConfigurationContext().setProperty(ServiceContext.SERVICE_OBJECT, serviceImplementation);
        if (startOnDeploy) {
            start();
        }
    }

The different between the regular deployService is that it extracts the serviceClassName from
the object and that it sets the SERVICE_OBJECT property on the context so that the bean will
be used as implementation class. If you like you can also implement it like this in the AxisRunner:

if (webservice instanceof String) { //Just classname
    			this.deployService(webservice.toString());
    		} else { //It's a bean
    			this.deployService(webservice.getClass().getName());
getConfigurationContext().setProperty(ServiceContext.SERVICE_OBJECT, webservice);
    		}

> 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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