org.springframework.mobile.device
Class DeviceResolverRequestFilter

java.lang.Object
  org.springframework.web.filter.GenericFilterBean
      org.springframework.web.filter.OncePerRequestFilter
          org.springframework.mobile.device.DeviceResolverRequestFilter

All Implemented Interfaces:

javax.servlet.Filter, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean, org.springframework.context.EnvironmentAware, org.springframework.web.context.ServletContextAware

public class DeviceResolverRequestFilter
extends org.springframework.web.filter.OncePerRequestFilter

A Servlet 2.3 Filter that resolves the Device that originated the web request. The resolved Device is exported as a request attribute under the well-known name of DeviceUtils.CURRENT_DEVICE_ATTRIBUTE. Request handlers such as @Controllers and views may then access the currentDevice to vary their control and rendering logic, respectively.

Author:

Roy Clarkson

Field Summary

Fields inherited from class org.springframework.web.filter.OncePerRequestFilter

ALREADY_FILTERED_SUFFIX

Fields inherited from class org.springframework.web.filter.GenericFilterBean

logger

Constructor Summary

DeviceResolverRequestFilter()
Create a device resolving Filter that defaults to a LiteDeviceResolver implementation.

DeviceResolverRequestFilter(DeviceResolver deviceResolver)
Create a device resolving Filter.

Method Summary

protected void

doFilterInternal(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.FilterChain filterChain)

Methods inherited from class org.springframework.web.filter.OncePerRequestFilter

doFilter, getAlreadyFilteredAttributeName, shouldNotFilter

Methods inherited from class org.springframework.web.filter.GenericFilterBean

addRequiredProperty, afterPropertiesSet, destroy, getFilterConfig, getFilterName, getServletContext, init, initBeanWrapper, initFilterBean, setBeanName, setEnvironment, setServletContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DeviceResolverRequestFilter

public DeviceResolverRequestFilter()

Create a device resolving Filter that defaults to a LiteDeviceResolver implementation.

DeviceResolverRequestFilter

public DeviceResolverRequestFilter(DeviceResolver deviceResolver)

Create a device resolving Filter.

Parameters:

deviceResolver - the device resolver to delegate to.

Method Detail

doFilterInternal

protected void doFilterInternal(javax.servlet.http.HttpServletRequest request,
                                javax.servlet.http.HttpServletResponse response,
                                javax.servlet.FilterChain filterChain)
                         throws javax.servlet.ServletException,
                                java.io.IOException

Specified by:

doFilterInternal in class org.springframework.web.filter.OncePerRequestFilter

Throws:

javax.servlet.ServletException

java.io.IOException