/*
* Copyright (c) 2015. Bearchoke
*/
package com.bearchoke.platform.server.common.web.interceptor;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Resolves the user's geo location from client-submitted query parameters, if present in the request.
* @author Keith Donald
*/
public class UserLocationHandlerInterceptor implements HandlerInterceptor {
public static final String USER_LOCATION_ATTRIBUTE = "userLocation";
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
Double latitude = ServletRequestUtils.getDoubleParameter(request, "latitude");
Double longitude = ServletRequestUtils.getDoubleParameter(request, "longitude");
if (latitude != null && longitude != null) {
request.setAttribute(USER_LOCATION_ATTRIBUTE, new Location(latitude, longitude));
}
return true;
}
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
}
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
}
}