110 lines
4.2 KiB
Java
110 lines
4.2 KiB
Java
package com.camillepradel.movierecommender.controller;
|
|
|
|
import java.util.Arrays;
|
|
import java.util.LinkedList;
|
|
import java.util.List;
|
|
|
|
import org.springframework.stereotype.Controller;
|
|
import org.springframework.web.bind.annotation.ModelAttribute;
|
|
import org.springframework.web.bind.annotation.RequestMapping;
|
|
import org.springframework.web.bind.annotation.RequestParam;
|
|
import org.springframework.web.servlet.ModelAndView;
|
|
import org.springframework.web.bind.annotation.RequestMethod;
|
|
|
|
import com.camillepradel.movierecommender.model.Genre;
|
|
import com.camillepradel.movierecommender.model.Movie;
|
|
import com.camillepradel.movierecommender.model.Rating;
|
|
|
|
@Controller
|
|
public class MainController {
|
|
String message = "Welcome to Spring MVC!";
|
|
|
|
@RequestMapping("/hello")
|
|
public ModelAndView showMessage(
|
|
@RequestParam(value = "name", required = false, defaultValue = "World") String name) {
|
|
System.out.println("in controller");
|
|
|
|
ModelAndView mv = new ModelAndView("helloworld");
|
|
mv.addObject("message", message);
|
|
mv.addObject("name", name);
|
|
return mv;
|
|
}
|
|
|
|
@RequestMapping("/movies")
|
|
public ModelAndView showMovies(
|
|
@RequestParam(value = "user_id", required = false) Integer userId) {
|
|
|
|
//List<Movie> movies = getMoviesNeo4JByUser(userId);
|
|
List<Movie> movies = MongoDBController.getMoviesMongoDBByUser(userId);
|
|
|
|
ModelAndView mv = new ModelAndView("movies");
|
|
mv.addObject("userId", userId);
|
|
mv.addObject("movies", movies);
|
|
return mv;
|
|
}
|
|
|
|
@RequestMapping(value = "/movieratings", method = RequestMethod.GET)
|
|
public ModelAndView showMoviesRattings(
|
|
@RequestParam(value = "user_id", required = true) Integer userId) {
|
|
System.out.println("GET /movieratings for user " + userId);
|
|
|
|
// write query to retrieve all movies from DB
|
|
List<Movie> allMovies = MongoDBController.getMoviesMongoDBByUser(null);
|
|
|
|
// write query to retrieve all ratings from the specified user
|
|
List<Rating> ratings = MongoDBController.getRatingMongoDBByUser(userId);
|
|
|
|
ModelAndView mv = new ModelAndView("movieratings");
|
|
mv.addObject("userId", userId);
|
|
mv.addObject("allMovies", allMovies);
|
|
mv.addObject("ratings", ratings);
|
|
|
|
return mv;
|
|
}
|
|
|
|
@RequestMapping(value = "/movieratings", method = RequestMethod.POST)
|
|
public String saveOrUpdateRating(@ModelAttribute("rating") Rating rating) {
|
|
System.out.println("POST /movieratings for user " + rating.getUserId()
|
|
+ ", movie " + rating.getMovie().getId()
|
|
+ ", score " + rating.getScore());
|
|
|
|
// TODO: add query which
|
|
// - add rating between specified user and movie if it doesn't exist
|
|
// - update it if it does exist
|
|
|
|
return "redirect:/movieratings?user_id=" + rating.getUserId();
|
|
}
|
|
|
|
@RequestMapping(value = "/recommendations", method = RequestMethod.GET)
|
|
public ModelAndView ProcessRecommendations(
|
|
@RequestParam(value = "user_id", required = true) Integer userId,
|
|
@RequestParam(value = "processing_mode", required = false, defaultValue = "0") Integer processingMode){
|
|
System.out.println("GET /movieratings for user " + userId);
|
|
|
|
// TODO: process recommendations for specified user exploiting other users ratings
|
|
// use different methods depending on processingMode parameter
|
|
Genre genre0 = new Genre(0, "genre0");
|
|
Genre genre1 = new Genre(1, "genre1");
|
|
Genre genre2 = new Genre(2, "genre2");
|
|
List<Rating> recommendations = new LinkedList<Rating>();
|
|
String titlePrefix;
|
|
if (processingMode.equals(0))
|
|
titlePrefix = "0_";
|
|
else if (processingMode.equals(1))
|
|
titlePrefix = "1_";
|
|
else if (processingMode.equals(2))
|
|
titlePrefix = "2_";
|
|
else
|
|
titlePrefix = "default_";
|
|
recommendations.add(new Rating(new Movie(0, titlePrefix + "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})), userId, 5));
|
|
recommendations.add(new Rating(new Movie(1, titlePrefix + "Titre 1", Arrays.asList(new Genre[] {genre0, genre2})), userId, 5));
|
|
recommendations.add(new Rating(new Movie(2, titlePrefix + "Titre 2", Arrays.asList(new Genre[] {genre1})), userId, 4));
|
|
recommendations.add(new Rating(new Movie(3, titlePrefix + "Titre 3", Arrays.asList(new Genre[] {genre0, genre1, genre2})), userId, 3));
|
|
|
|
ModelAndView mv = new ModelAndView("recommendations");
|
|
mv.addObject("recommendations", recommendations);
|
|
|
|
return mv;
|
|
}
|
|
}
|