Spring autowiring fails in RESTeasy service - spring

Question

I have a simple service which fails to autowire bean.
Although getting the same bean through context succeeds.
So the bean creation and registration in repository is working, but autowiring does not.
Changing class of the field in the service (MyRepository -> YourRepository), there is an error thrown that such bean does not exists, so the autowiring mechanism is working.
Any ideas what might be missing?
#Component
#Path("/")
public class RestService {
#Autowired
private MyRepository myRepository; // is not autowired and is null
#GET
#Path("/{param}")
#Produces(MediaType.APPLICATION_JSON)
public Response printMessage(#PathParam("param") String msg) {
return Response.ok(
AppContext.getContext().getBean("myRepository") == myRepository)
.build(); // false
}
public void setMyRepository(MyRepository myRepository) {
this.myRepository = myRepository;
}
}
AppContext above is my simple implementation of ApplicationContextAware
Repository
#Repository
public interface MyRepository extends MongoRepository<MyEntity, String> {
}
There is no .xml configuration and spring is initialized through
public class MyInitializer implements WebApplicationInitializer {
#Override
public void onStartup(ServletContext container) throws ServletException {
container.addListener(new ResteasyBootstrap());
final AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
ContextLoaderListener springListener = new ContextLoaderListener(rootContext);
rootContext.register(MyConfiguration.class);
container.addListener(springListener);
}
}
And configuration class
#Configuration
#EnableMongoRepositories("my.package.repository")
#ComponentScan("my.package")
public class MyConfiguration {
#Bean
public MongoTemplate mongoTemplate() throws UnknownHostException {
return new MongoTemplate(new MongoClient("localhost"), "db");
}
}
EDIT after 2 comments
I'm using the following library for RESTeasy - spring integration.
Do I need some other?
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-spring</artifactId>
<version>3.0.8.Final</version>
</dependency>
I think JAX-RS and RESTeasy is working correctly, because service is working and I can access it through web when deployed on JBoss
EDIT for workaround
Service is initialized correctly if I create the following constructor, but it feels more like a workaround
public RestService() {
this.myRepository = MyContext.getContext().getBean(MyRepository.class);
}
And MyContext class for more clarity
#Component
public class MyContext implements ApplicationContextAware {
private static ApplicationContext context;
#Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
context = applicationContext;
}
public static ApplicationContext getContext() {
return context;
}
}

Answer 1

Spring might be setup correctly, but that doesn't necessary mean that Spring+RestEasy integration is setup correctly.
The code I am posting is the web.xml configuration that I have used (with RestEasy 3.0.6 and Spring 3.2.8) and correctly sets up the integration between RestEasy and Spring and also sets up Spring MVC (everything under /api is handled by RestEasy, everything else is handled by Spring MVC).
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<context-param>
<param-name>contextClass</param-name>
<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>my.package.config.ApplicationConfig</param-value>
</context-param>
<context-param>
<param-name>spring.profiles.active</param-name>
<param-value>web</param-value>
</context-param>
<context-param>
<param-name>resteasy.servlet.mapping.prefix</param-name>
<param-value>/api</param-value>
</context-param>
<!-- Spring + RESTEasy -->
<listener>
<listener-class>org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap</listener-class>
</listener>
<listener>
<listener-class>org.jboss.resteasy.plugins.spring.SpringContextLoaderListener</listener-class>
</listener>
<!-- RESTEasy Servlet-->
<servlet>
<servlet-name>Resteasy</servlet-name>
<servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Resteasy</servlet-name>
<url-pattern>/api/*</url-pattern>
</servlet-mapping>
<!-- Spring MVC Servlet -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextClass</param-name>
<param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
</init-param>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>my.package.config.MvcConfig</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file></welcome-file>
</welcome-file-list>
<error-page>
<error-code>404</error-code>
<location>/WEB-INF/jsp/error404.jsp</location>
</error-page>
</web-app>

Answer 2

Managed to solve the issue myself.
The correct solution is either to replace
public class MyInitializer implements WebApplicationInitializer {
#Override
public void onStartup(ServletContext container) throws ServletException {
container.addListener(new ResteasyBootstrap());
final AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
ContextLoaderListener springListener = new ContextLoaderListener(rootContext);
rootContext.register(MyConfiguration.class);
container.addListener(springListener);
}
}
with
public class MyInitializer implements WebApplicationInitializer {
#Override
public void onStartup(ServletContext container) throws ServletException {
container.addListener(new ResteasyBootstrap());
container.addListener(new SpringContextLoaderListener());
}
}
but in this case I'm losing possibility to use AnnotationConfigWebApplicationContext.
Also the initializer can be changed as follows to preserve annotation context.
public class MyInitializer implements WebApplicationInitializer {
#Override
public void onStartup(ServletContext container) throws ServletException {
container.addListener(new ResteasyBootstrap());
final AnnotationConfigWebApplicationContext rootContext = new AnnotationConfigWebApplicationContext();
ContextLoaderListener springListener = new ContextLoaderListener(rootContext) {
#Override
protected ContextLoader createContextLoader() {
return new SpringContextLoader();
}
};
rootContext.register(MyConfiguration.class);
container.addListener(springListener);
}
}