axis2 with spring doesn't work on the weblogic, I have a temp solution

[Diegoq Lin]

hi all,

I have a strange issue. I integrated axis2 and spring2.0.5. And I distributed 
the app on the tomcat5.5.20, it works well. but the same war package was put 
down the directory "autodeploy" of weblogic9.2, It didn't work and had many 
excetions. The most valueable exception is as follow:

Caused by: java.lang.NullPointerException
        at org.apache.axis2.extensions.spring.receivers.SpringServletContextObje
ctSupplier.getServiceObject(SpringServletContextObjectSupplier.java:58)
        ... 53 more

I inquired the code in number 58: 
Parameter servletConfigParam = axisService.getAxisConfiguration()
 .getParameter(HTTPConstants.HTTP_SERVLETCONFIG);

if (servletConfigParam == null) {
    throw new Exception("Axis2 Can't find ServletConfigParameter");
}
Object obj = servletConfigParam.getValue();
ServletContext servletContext;
if (obj instanceof ServletConfig) {
    ServletConfig servletConfig = (ServletConfig)obj;
    servletContext = servletConfig.getServletContext();
} else {
    throw new Exception("Axis2 Can't find ServletConfig");
}
ApplicationContext aCtx =
 WebApplicationContextUtils.getWebApplicationContext(servletContext);
any help would be appreciated.

the method main function is just find out the spring application context in the 
servletContext properties.
after servlet initialized phase, ConfigurationContext and AxisConfiguration 
objects are impossibly null. why axis2 get a null object? see the 
getAxisConfiguration method: 
    public AxisConfiguration getAxisConfiguration() {

        if (this instanceof AxisConfiguration) {
            return (AxisConfiguration) this;
        }

        if (this.parent != null) {
            return this.parent.getAxisConfiguration();
        }

        return null;
    }

the implementation of the method is the problem! I don't know how to do 
correctly. my temp solution that can make the application work on the weblogic 
is as follow:

1.add the bean in applicationContext.xml:
<?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-2.0.xsd";>

 <bean id="myVersion" class="sample.axisversion.Version" />
  
  <bean id="globalSpringContext" class="sample.axisversion.GlobalSpringContext" 
lazy-init="false" />
</beans>

2.new the class GlobalSpringContext.java:
package sample.axisversion;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class GlobalSpringContext implements ApplicationContextAware {   
    private static ApplicationContext ac; 
   
 /* (non-Javadoc)  
     * @see 
org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
  
    */  
    public void setApplicationContext(ApplicationContext ac) throws 
BeansException {   
     GlobalSpringContext.ac = ac;   
           
    }

 public static ApplicationContext getApplicationContext() {
    return ac;   
 }   
}

3.new the MyServiceObjectSupplier.java: 
package sample.axisversion;

import org.apache.axis2.AxisFault;
import org.apache.axis2.description.AxisService;
import 
org.apache.axis2.extensions.spring.receivers.SpringServletContextObjectSupplier;
import org.apache.axis2.i18n.Messages;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationContext;

public class MyServiceObjectSupplier extends SpringServletContextObjectSupplier 
{


    private static Log log = LogFactory.getLog(MyServiceObjectSupplier.class);
    /**
     * Method getServiceObject that is Spring aware via ServletContext.
     *
     * @param axisService
     * @return Returns Object.
     * @throws AxisFault
     */
    public Object getServiceObject(AxisService axisService) throws AxisFault {
        try {
            String beanName = 
((String)axisService.getParameter(SERVICE_SPRING_BEANNAME).getValue()).trim();
            if (beanName != null) {
                ApplicationContext aCtx = 
GlobalSpringContext.getApplicationContext();
                if (aCtx == null) {
                    log.warn("Axis2 Can't find Spring's ApplicationContext");
                    return null;
                } else if (aCtx.getBean(beanName) == null) {
                    throw new Exception("Axis2 Can't find Spring Bean: " + 
beanName);
                }
                return aCtx.getBean(beanName);
            } else {
                throw new AxisFault(
                        Messages.getMessage("paramIsNotSpecified", 
"SERVICE_SPRING_BEANNAME"));
            }
        } catch (Exception e) {
            throw AxisFault.makeFault(e);
        }
    }
}

4.services.xml:
<service name="Version">
    <description>
        This service is to get the running Axis version
    </description>
    <!--parameter name="ServiceClass">sample.axisversion.Version</parameter-->
  <parameter name="ServiceObjectSupplier" locked="false">
    sample.axisversion.MyServiceObjectSupplier
  </parameter>
  <parameter name="SpringBeanName" locked="false">myVersion</parameter>

    <operation name="getVersion">
    <messageReceiver  class="org.apache.axis2.rpc.receivers.RPCMessageReceiver" 
/>
    </operation>
</service>


However i still want to know why it works on tomcat but it doesn't work on 
weblogic. Do you have any experience about it? Any help would be appreciated. 
thanks.

Best Regards

javafoot