Scope request cxf jaxrs - scope

Question

I would like to ask you a question about the scoping of the beans with cxf.
According to the documentation all the bean will in scope singleton. However I would like to have them in scope request.
In the doc here http://cxf.apache.org/docs/jaxrs-services-configuration.html
I found:
When service classes and providers are registered this way, the default life-cycle is 'singleton'. You can override it by setting a "jaxrs.scope" parameter with the value of 'prototype' (equivalent to per-request).
I tried thousand of stuff and I was not able to make them working:
Here is my web xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>CxfRestService</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/beans.xml</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/resource/log4j.properties</param-value>
</context-param>
<servlet>
<servlet-name>CXFServlet</servlet-name>
<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
<init-param>
<param-name>jaxrs.scope</param-name>
<param-value>request</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>CXFServlet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
</web-app>
I did a simple test with this:
#Path("/")
#WebService(name = "profile", targetNamespace = "")
#Named
public class ProfileCXFService {
private String thisIsAValue;
/**
* Create a profile
*/
#POST
#Path("")
#Produces({ MediaType.APPLICATION_JSON })
#Consumes({ MediaType.APPLICATION_JSON })
public Response createProfile(Profile profile){
if(thisIsAValue == null){
thisIsAValue = "toto";
} else{
return Response.serverError().entity("NOOOOOO").build();
}
return Response.ok().entity("YESSSSS").build();
}
The first call is YESSS and the second NOOOOO.
I would like to have all my beans as request. Were can I find a common way to configure this.
In fact I do not have problem with singleton as the only fields I have are services which are as well singleton and the only moment where I need to use fields specific to the request I am doing a new MyObject. However I heard that Singleton can cause latency if the traffic grows on the server.
Do you have any idea of what can I do?
Thanks a lot in advance and best regards
Geoffrey

Answer 1

So basically found the solution:
In your beans.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"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jaxws="http://cxf.apache.org/jaxws"
xmlns:jaxrs="http://cxf.apache.org/jaxrs"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxrs
http://cxf.apache.org/schemas/jaxrs.xsd
http://cxf.apache.org/jaxws
http://cxf.apache.org/schemas/jaxws.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<jaxrs:server id="profile" address="/profile">
<jaxrs:providers>
<bean class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider" />
</jaxrs:providers>
<jaxrs:serviceBeans>
<ref bean="ProfileCXFServiceImpl"/>
</jaxrs:serviceBeans>
<jaxrs:extensionMappings>
<entry key="xml" value="application/xml" />
<entry key="json" value="application/json" />
</jaxrs:extensionMappings>
</jaxrs:server>
<bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"/>
<bean id="ProfileCXFServiceImpl" class="com.project.cxfrestservice.ProfileCXFServiceImpl" scope="prototype"><aop:scoped-proxy /></bean>
</beans>
And Voila!!!!