Web Application Spring Usage from Main Servlet.service method

[Ali Abdel-Aziz]

I have the following Spring XML configuration files:

• beanRefFactory.xml
• applicationContext.xml,
• applicationContext-dataSource.xml

Which is configured in the web.xml as follows:

<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:beanRefFactory.xml,
              classpath:applicationContext.xml,
              classpath:applicationContext-dataSource.xml
  </param-value>
</context-param>

and spring is loaded using

<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

and I have Main Servlet configured as follows:

<servlet>
 <servlet-name>SCMSAction</servlet-name>
 <servlet-class>org.aliabdelaziz.gui.common.SCMSServlet</servlet-class>
...
 <init-param>
  <param-name>config</param-name>
  <param-value>
   /WEB-INF/struts-config-sch.xml,
   /WEB-INF/struts-config-adm.xml, 
   /WEB-INF/struts-config-inv.xml
  </param-value>
 </init-param>
   ...
 <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
 <servlet-name>SCMSAction</servlet-name>
 <url-pattern>*.do</url-pattern>
</servlet-mapping>

and the following is my SCMSServlet

public class SCMSServlet extends ActionServlet {
.....
public void service(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
try {
if(request.getRequestURI().indexOf(ADMIN_MODULE) != -1) {
AMSClasspathUtils.initialise(); // Do some Spring calls
PMSClasspathUtils.initialise(); // Do some Spring calls
KMSClasspathUtils.initialise(); // Do some Spring calls
}
} catch (Exception e) {
}
...
}
}

And I have all my actions belongs to one of the following modules {INV, SCH, Admin}
When I try to access any Action that is not in the Admin Module just after the WebApplication started; the spring calls get executed successfully without problems; Later if I tried to access Admin Actions it get executed successfully I guess because Spring get initialized successfully.

Success Spring Logging messages

- Initializing composable request processor for module prefix ''
- Initialize action of type: org.aliabdelaziz.scms.gui.invro.actions.card.stock.CardStockEditionAction
- Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@e9406c: display name [org.springframework.context.support.ClassPathXmlApplicationContext@e9406c]; startup date [Sun Apr 29 18:39:21 GMT+04:00 2012]; root of context hierarchy
- Loading XML bean definitions from URL [jar:file:/D:/scms/scms-struts/build/web/WEB-INF/lib/scms-business.jar!/beanRefFactory.xml]
- Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@e9406c]: org.springframework.beans.factory.support.DefaultListableBeanFactory@e400a4
- Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@e400a4: defining beans [beanRefFactory]; root of factory hierarchy
- Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@8af1c6: display name [org.springframework.context.support.ClassPathXmlApplicationContext@8af1c6]; startup date [Sun Apr 29 18:39:21 GMT+04:00 2012]; root of context hierarchy
- Loading XML bean definitions from class path resource .....

If I tried to access any of the Admin's Actions just after the web Application started I got the following Spring Exception (and the same thing happens with me if I tried to invoke WebServices Imediatly after my WebApplication Started and before invoking any {INV, SCH}'s Action to initialize the Spring)
"org.springframework.beans.factory.NoSuchBeanDefini tionException: No bean named 'beanRefFactory' is defined"

2012-04-29 19:01:50,648 ["http-bio-9082"-exec-26] INFO  org.aliabdelaziz.fwk.SCMSClassLoader  - SCMS AMS ClassLoader initialisation complete.
- SCMS AMS ClassLoader initialisation complete.
2012-04-30 10:20:52,891 ["http-bio-9082"-exec-26] ERROR org.aliabdelaziz.fwk.logs.SCMSLogManager  - Component SCMS		error.scms.kms.configuration
org.springframework.beans.factory.access.BootstrapException: Unable to return specified BeanFactory instance: factory key [beanRefFactory], from group with resource name [classpath*:beanRefFactory.xml]; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'beanRefFactory' is defined
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'beanRefFactory' is defined
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:356)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedBeanDefinition(AbstractBeanFactory.java:916)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:243)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:733)
	at org.springframework.beans.factory.access.SingletonBeanFactoryLocator.useBeanFactory(SingletonBeanFactoryLocator.java:395)
	at org.aliabdelaziz.scms.ServiceLocator.getContext(ServiceLocator.java:106)
	at org.aliabdelaziz.scms.ServiceLocator.getClasspathService(ServiceLocator.java:156)
	at org.aliabdelaziz.scms.web.ext.kms.KMSClasspathUtils.resetKMSClassloader(KMSClasspathUtils.java:62)
	at org.aliabdelaziz.scms.web.ext.kms.KMSClasspathUtils.initialise(KMSClasspathUtils.java:42)
	at org.aliabdelaziz.scms.gui.common.SCMSServlet.service(SCMSServlet.java:91)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
	...
	at java.lang.Thread.run(Thread.java:662)
- Component SCMS		error.scms.kms.configuration
org.springframework.beans.factory.access.BootstrapException: Unable to return specified BeanFactory instance: factory key [beanRefFactory], from group with resource name [classpath*:beanRefFactory.xml]; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'beanRefFactory' is defined
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'beanRefFactory' is defined
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:356)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedBeanDefinition(AbstractBeanFactory.java:916)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:243)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:733)
	at org.springframework.beans.factory.access.SingletonBeanFactoryLocator.useBeanFactory(SingletonBeanFactoryLocator.java:395)
	at org.aliabdelaziz.scms.ServiceLocator.getContext(ServiceLocator.java:106)
	at org.aliabdelaziz.scms.ServiceLocator.getClasspathService(ServiceLocator.java:156)
	at org.aliabdelaziz.scms.web.ext.kms.KMSClasspathUtils.resetKMSClassloader(KMSClasspathUtils.java:62)
	at org.aliabdelaziz.scms.web.ext.kms.KMSClasspathUtils.initialise(KMSClasspathUtils.java:42)
	at org.aliabdelaziz.scms.gui.common.SCMSServlet.service(SCMSServlet.java:91)
...
log4j:ERROR Failed to rename [d:/temp/scms.txt] to [d:/temp/scms.txt.2012-04-29].
- Initializing composable request processor for module prefix ''
2012-04-30 10:21:10,448 ["http-bio-9082"-exec-26] ERROR org.aliabdelaziz.scms.gui.common.SCMSServlet  - Caught an exception while processing the request /scms/admin/conf/main.do
javax.servlet.ServletException: Cannot find catalog 'struts'
	at org.apache.struts.chain.ComposableRequestProcessor.init(ComposableRequestProcessor.java:161)
	at org.apache.struts.action.ActionServlet.getRequestProcessor(ActionServlet.java:620)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1910)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	at org.aliabdelaziz.scms.gui.common.SCMSServlet.service(SCMSServlet.java:99)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	...
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
	...
	at java.lang.Thread.run(Thread.java:662)
- Caught an exception while processing the request /scms/admin/conf/main.do
javax.servlet.ServletException: Cannot find catalog 'struts'
	at org.apache.struts.chain.ComposableRequestProcessor.init(ComposableRequestProcessor.java:161)
	at org.apache.struts.action.ActionServlet.getRequestProcessor(ActionServlet.java:620)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1910)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	at org.aliabdelaziz.scms.gui.common.SCMSServlet.service(SCMSServlet.java:99)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	...

So How can I fix this? Do I need to load Spring manually as standalone in the places that get this spring exceptions?