clean controller
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package com.camillepradel.movierecommender.controller;
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import java.util.Arrays;
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import java.util.LinkedList;
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import java.util.List;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.servlet.ModelAndView;
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import org.springframework.web.bind.annotation.RequestMethod;
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import com.camillepradel.movierecommender.model.Genre;
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import com.camillepradel.movierecommender.model.Movie;
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<<<<<<< HEAD
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import com.mongodb.BasicDBObject;
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import com.mongodb.client.MongoCollection;
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import com.mongodb.client.MongoCursor;
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import com.mongodb.client.MongoDatabase;
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import java.util.ArrayList;
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import org.bson.Document;
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=======
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>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
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import com.camillepradel.movierecommender.model.Rating;
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@Controller
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public class MainController {
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String message = "Welcome to Spring MVC!";
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@RequestMapping("/hello")
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public ModelAndView showMessage(
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@RequestParam(value = "name", required = false, defaultValue = "World") String name) {
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System.out.println("in controller");
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ModelAndView mv = new ModelAndView("helloworld");
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mv.addObject("message", message);
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mv.addObject("name", name);
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return mv;
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}
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@RequestMapping("/movies")
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public ModelAndView showMovies(
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@RequestParam(value = "user_id", required = false) Integer userId) {
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<<<<<<< HEAD
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List<Movie> movies = Neo4JController.getMoviesNeo4JByUser(userId);
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//List<Movie> movies = getMoviesMongoDBByUser(userId);
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=======
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//List<Movie> movies = getMoviesNeo4JByUser(userId);
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List<Movie> movies = MongoDBController.getMoviesMongoDBByUser(userId);
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>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
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ModelAndView mv = new ModelAndView("movies");
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mv.addObject("userId", userId);
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mv.addObject("movies", movies);
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return mv;
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}
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<<<<<<< HEAD
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public List<Movie>getMoviesMongoDBByUser(Integer user_id){
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ArrayList<Movie> listMovies= new ArrayList<Movie>();
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MongoCursor<Document> cursor;
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MongoDatabase db = MongoDBConnector.getInstance().getConnexion();
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MongoCollection<Document> movies = db.getCollection("movies");
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if(user_id != null)
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{
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MongoCollection<Document> users = db.getCollection("users");
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BasicDBObject whereQuery = new BasicDBObject();
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whereQuery.put("_id", user_id);
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cursor = users.find(whereQuery).iterator();
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Document user;
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try {
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user = cursor.next();
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} catch(Exception e)
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{
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return new ArrayList<Movie>();
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}
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ArrayList<Document> user_movies;
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user_movies = (ArrayList) user.get("movies");
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BasicDBObject inQuery = new BasicDBObject();
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List<Integer> list = new ArrayList<Integer>();
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for(Document movie : user_movies)
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list.add(movie.getInteger("movieid"));
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inQuery.put("_id", new BasicDBObject("$in", list));
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cursor = movies.find(inQuery).iterator();
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}
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else
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{
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cursor = movies.find().iterator();
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}
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while (cursor.hasNext()) {
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Document movie = cursor.next();
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String[] genres;
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genres = movie.getString("genres").split("\\|");
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ArrayList<Genre> listGenres = new ArrayList<Genre>();
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for(String genre : genres){
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listGenres.add(new Genre(1,genre));
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}
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listMovies.add(new Movie(movie.getInteger("_id"), movie.getString("title"), listGenres));
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}
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return listMovies;
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}
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=======
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>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
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@RequestMapping(value = "/movieratings", method = RequestMethod.GET)
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public ModelAndView showMoviesRattings(
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@RequestParam(value = "user_id", required = true) Integer userId) {
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System.out.println("GET /movieratings for user " + userId);
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<<<<<<< HEAD
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// TODO: write query to retrieve all movies from DB
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List<Movie> allMovies = new LinkedList<Movie>();
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Genre genre0 = new Genre(0, "genre0");
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Genre genre1 = new Genre(1, "genre1");
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Genre genre2 = new Genre(2, "genre2");
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allMovies.add(new Movie(0, "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})));
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allMovies.add(new Movie(1, "Titre 1", Arrays.asList(new Genre[] {genre0, genre2})));
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allMovies.add(new Movie(2, "Titre 2", Arrays.asList(new Genre[] {genre1})));
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allMovies.add(new Movie(3, "Titre 3", Arrays.asList(new Genre[] {genre0, genre1, genre2})));
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// TODO: write query to retrieve all ratings from the specified user
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List<Rating> ratings = new LinkedList<Rating>();
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//ratings.add(new Rating(new Movie(0, "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})), userId, 3));
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//ratings.add(new Rating(new Movie(2, "Titre 2", Arrays.asList(new Genre[] {genre1})), userId, 4));
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=======
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// write query to retrieve all movies from DB
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List<Movie> allMovies = MongoDBController.getMoviesMongoDBByUser(null);
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// write query to retrieve all ratings from the specified user
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List<Rating> ratings = MongoDBController.getRatingMongoDBByUser(userId);
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>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
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ratings=Neo4JController.GetMoviesRatingNeo4JByUser(userId);
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ModelAndView mv = new ModelAndView("movieratings");
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mv.addObject("userId", userId);
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mv.addObject("allMovies", allMovies);
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mv.addObject("ratings", ratings);
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return mv;
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}
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@RequestMapping(value = "/movieratings", method = RequestMethod.POST)
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public String saveOrUpdateRating(@ModelAttribute("rating") Rating rating) {
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System.out.println("POST /movieratings for user " + rating.getUserId()
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+ ", movie " + rating.getMovie().getId()
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+ ", score " + rating.getScore());
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// TODO: add query which
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// - add rating between specified user and movie if it doesn't exist
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// - update it if it does exist
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return "redirect:/movieratings?user_id=" + rating.getUserId();
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}
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@RequestMapping(value = "/recommendations", method = RequestMethod.GET)
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public ModelAndView ProcessRecommendations(
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@RequestParam(value = "user_id", required = true) Integer userId,
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@RequestParam(value = "processing_mode", required = false, defaultValue = "0") Integer processingMode){
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System.out.println("GET /movieratings for user " + userId);
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// TODO: process recommendations for specified user exploiting other users ratings
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// use different methods depending on processingMode parameter
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Genre genre0 = new Genre(0, "genre0");
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Genre genre1 = new Genre(1, "genre1");
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Genre genre2 = new Genre(2, "genre2");
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List<Rating> recommendations = new LinkedList<Rating>();
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String titlePrefix;
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if (processingMode.equals(0))
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titlePrefix = "0_";
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else if (processingMode.equals(1))
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titlePrefix = "1_";
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else if (processingMode.equals(2))
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titlePrefix = "2_";
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else
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titlePrefix = "default_";
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recommendations.add(new Rating(new Movie(0, titlePrefix + "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})), userId, 5));
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recommendations.add(new Rating(new Movie(1, titlePrefix + "Titre 1", Arrays.asList(new Genre[] {genre0, genre2})), userId, 5));
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recommendations.add(new Rating(new Movie(2, titlePrefix + "Titre 2", Arrays.asList(new Genre[] {genre1})), userId, 4));
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recommendations.add(new Rating(new Movie(3, titlePrefix + "Titre 3", Arrays.asList(new Genre[] {genre0, genre1, genre2})), userId, 3));
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ModelAndView mv = new ModelAndView("recommendations");
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mv.addObject("recommendations", recommendations);
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return mv;
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}
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}
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