How to use Spring-Mobile with webflow? - spring-mvc

Question

I need to use Spring-mobile to detect the device. I have seen lot of examples with spring-mobile and spring mvc but none with webflow. Below is a sample webflow, I need to use device detection so I can redirect the page to mobile or table or desktop based on device.
webflow-config.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:webflow="http://www.springframework.org/schema/webflow-config"
xmlns:faces="http://www.springframework.org/schema/faces"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/webflow-config
http://www.springframework.org/schema/webflow-config/spring-webflow-config.xsd
http://www.springframework.org/schema/faces
http://www.springframework.org/schema/faces/spring-faces.xsd">
<!-- JSF Specific -->
<!-- A listener maintain one FacesContext instance per Web Flow request. -->
<bean id="facesContextListener"
class="org.springframework.faces.webflow.FlowFacesContextLifecycleListener" />
<!--- Executes flows: the central entry point into the Spring Web Flow system
- -->
<webflow:flow-executor id="flowExecutor">
<webflow:flow-execution-listeners>
<webflow:listener ref="facesContextListener" />
</webflow:flow-execution-listeners>
</webflow:flow-executor>
<!-- The registry of executable flow definitions -->
<webflow:flow-registry id="flowRegistry"
flow-builder-services="flowBuilderServices" base-path="/WEB-INF/flows">
<webflow:flow-location-pattern value="/**/*-flow.xml" />
</webflow:flow-registry>
<!-- Configures the Spring Web Flow JSF Integration -->
<faces:flow-builder-services id="flowBuilderServices"
development="true" />
<faces:resources />
<bean class="org.springframework.faces.webflow.JsfFlowHandlerAdapter">
<property name="flowExecutor" ref="flowExecutor" />
</bean>
<bean id="faceletsViewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.faces.mvc.JsfView" />
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".xhtml" />
</bean>
<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
<property name="order" value="1" />
<property name="flowRegistry" ref="flowRegistry" />
<property name="defaultHandler">
<bean class="org.springframework.web.servlet.mvc.UrlFilenameViewController" />
</property>
</bean>
<!-- Dispatches requests mapped to org.springframework.web.servlet.mvc.Controller
implementations -->
<bean
class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />
</beans>
flow main
<?xml version="1.0" encoding="UTF-8"?>
<flow xmlns="http://www.springframework.org/schema/webflow"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/webflow
http://www.springframework.org/schema/webflow/spring-webflow-2.0.xsd">
<view-state id="welcome">
</view-state>
</flow>
Web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>WebFlowSample</display-name>
<!-- - Location of the XML file that defines the root application context.
- Applied by ContextLoaderListener. -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/application-config.xml</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<context-param>
<param-name>facelets.DEVELOPMENT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>javax.faces.FACELETS_REFRESH_PERIOD</param-name>
<param-value>1</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Resource mapping -->
<servlet>
<servlet-name>Resources Servlet</servlet-name>
<servlet-class>org.springframework.js.resource.ResourceServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Resources Servlet</servlet-name>
<url-pattern>/resources/*</url-pattern>
</servlet-mapping>
<!-- - Servlet that dispatches request to registered handlers (Controller
implementations). -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/app/*</url-pattern>
</servlet-mapping>
<!-- In order for JSF to bootstrap correctly -->
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
</web-app>
Controller
/**
* Handles requests for the application home page.
*/
#Controller
#RequestMapping("/wb")
public class HomeController {
private static final Logger logger = LoggerFactory.getLogger(HomeController.class);
/**
* Simply selects the home view to render by returning its name.
*/
#RequestMapping("/create/")
public String home(Device device, Model model) {
if (device == null) {
logger.info("no device detected");
} else if (device.isNormal()) {
logger.info("Device is normal");
} else if (device.isMobile()) {
logger.info("Device is mobile");
} else if (device.isTablet()) {
logger.info("Device is tablet");
}
// where main is the flow id for welcome page
return "main";
}
}
Updated:
I need the homecontroller class to call the flow, this is not the right way. But can anyone tell how to call?

Answer 1

(This is a reply to your comment, but too large to be a comment itself.)
In order to add interceptors to Webflow, add them to your FlowHandlerMapping bean definition. Like this:
<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
...
<property name="interceptors">
<list>
<bean class="org.springframework.mobile.device.DeviceResolverHandlerInterceptor"/>
</list>
</property>
</bean>