This commit is contained in:
Quentin Rouland 2016-12-01 10:12:34 +01:00
commit bbf492b63b
3 changed files with 320 additions and 3 deletions

View File

@ -13,6 +13,23 @@ import org.springframework.web.bind.annotation.RequestMethod;
import com.camillepradel.movierecommender.model.Genre;
import com.camillepradel.movierecommender.model.Movie;
import com.mongodb.BasicDBList;
import com.mongodb.BasicDBObject;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.client.FindIterable;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoDatabase;
import java.util.ArrayList;
import org.bson.Document;
import java.net.ConnectException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.neo4j.driver.v1.Record;
import org.neo4j.driver.v1.Session;
import org.neo4j.driver.v1.StatementResult;
import com.camillepradel.movierecommender.model.Rating;
@Controller
@ -34,7 +51,7 @@ public class MainController {
public ModelAndView showMovies(
@RequestParam(value = "user_id", required = false) Integer userId) {
//List<Movie> movies = getMoviesNeo4JByUser(userId);
//List<Movie> movies = Neo4JController.getMoviesNeo4JByUser(userId);
List<Movie> movies = MongoDBController.getMoviesMongoDBByUser(userId);
ModelAndView mv = new ModelAndView("movies");
@ -42,6 +59,7 @@ public class MainController {
mv.addObject("movies", movies);
return mv;
}
@RequestMapping(value = "/movieratings", method = RequestMethod.GET)
public ModelAndView showMoviesRattings(
@ -49,11 +67,13 @@ public class MainController {
System.out.println("GET /movieratings for user " + userId);
// write query to retrieve all movies from DB
List<Movie> allMovies = MongoDBController.getMoviesMongoDBByUser(null);
List<Movie> allMovies = MongoDBController.getMoviesMongoDBByUser(userId);
//List<Movie> allMovies =Neo4JController.getMoviesNeo4JByUser(userId);
// write query to retrieve all ratings from the specified user
List<Rating> ratings = MongoDBController.getRatingMongoDBByUser(userId);
//List<Rating> ratings=Neo4JController.GetMoviesRatingNeo4JByUser(userId);
ModelAndView mv = new ModelAndView("movieratings");
mv.addObject("userId", userId);
mv.addObject("allMovies", allMovies);

View File

@ -0,0 +1,197 @@
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;
<<<<<<< HEAD
import com.mongodb.BasicDBObject;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoDatabase;
import java.util.ArrayList;
import org.bson.Document;
=======
>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
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) {
<<<<<<< HEAD
List<Movie> movies = Neo4JController.getMoviesNeo4JByUser(userId);
//List<Movie> movies = getMoviesMongoDBByUser(userId);
=======
//List<Movie> movies = getMoviesNeo4JByUser(userId);
List<Movie> movies = MongoDBController.getMoviesMongoDBByUser(userId);
>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
ModelAndView mv = new ModelAndView("movies");
mv.addObject("userId", userId);
mv.addObject("movies", movies);
return mv;
}
<<<<<<< HEAD
public List<Movie>getMoviesMongoDBByUser(Integer user_id){
ArrayList<Movie> listMovies= new ArrayList<Movie>();
MongoCursor<Document> cursor;
MongoDatabase db = MongoDBConnector.getInstance().getConnexion();
MongoCollection<Document> movies = db.getCollection("movies");
if(user_id != null)
{
MongoCollection<Document> users = db.getCollection("users");
BasicDBObject whereQuery = new BasicDBObject();
whereQuery.put("_id", user_id);
cursor = users.find(whereQuery).iterator();
Document user;
try {
user = cursor.next();
} catch(Exception e)
{
return new ArrayList<Movie>();
}
ArrayList<Document> user_movies;
user_movies = (ArrayList) user.get("movies");
BasicDBObject inQuery = new BasicDBObject();
List<Integer> list = new ArrayList<Integer>();
for(Document movie : user_movies)
list.add(movie.getInteger("movieid"));
inQuery.put("_id", new BasicDBObject("$in", list));
cursor = movies.find(inQuery).iterator();
}
else
{
cursor = movies.find().iterator();
}
while (cursor.hasNext()) {
Document movie = cursor.next();
String[] genres;
genres = movie.getString("genres").split("\\|");
ArrayList<Genre> listGenres = new ArrayList<Genre>();
for(String genre : genres){
listGenres.add(new Genre(1,genre));
}
listMovies.add(new Movie(movie.getInteger("_id"), movie.getString("title"), listGenres));
}
return listMovies;
}
=======
>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
@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);
<<<<<<< HEAD
// TODO: write query to retrieve all movies from DB
List<Movie> allMovies = new LinkedList<Movie>();
Genre genre0 = new Genre(0, "genre0");
Genre genre1 = new Genre(1, "genre1");
Genre genre2 = new Genre(2, "genre2");
allMovies.add(new Movie(0, "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})));
allMovies.add(new Movie(1, "Titre 1", Arrays.asList(new Genre[] {genre0, genre2})));
allMovies.add(new Movie(2, "Titre 2", Arrays.asList(new Genre[] {genre1})));
allMovies.add(new Movie(3, "Titre 3", Arrays.asList(new Genre[] {genre0, genre1, genre2})));
// TODO: write query to retrieve all ratings from the specified user
List<Rating> ratings = new LinkedList<Rating>();
//ratings.add(new Rating(new Movie(0, "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})), userId, 3));
//ratings.add(new Rating(new Movie(2, "Titre 2", Arrays.asList(new Genre[] {genre1})), userId, 4));
=======
// 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);
>>>>>>> a72a92de3cdc61c123708e0446b315525a3fc276
ratings=Neo4JController.GetMoviesRatingNeo4JByUser(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;
}
}

View File

@ -0,0 +1,100 @@
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package com.camillepradel.movierecommender.controller;
import com.camillepradel.movierecommender.model.Genre;
import com.camillepradel.movierecommender.model.Movie;
import com.camillepradel.movierecommender.model.Rating;
import java.net.ConnectException;
import java.util.LinkedList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.neo4j.driver.v1.Record;
import org.neo4j.driver.v1.StatementResult;
/**
*
* @author renando
*/
public class Neo4JController {
public static List<Movie>getMoviesNeo4JByUser (Integer userId){
List<Movie> movies = new LinkedList<Movie>();
int id=0;
StatementResult result = null;
try {
if (userId != null && userId >=0 ){
result = Neo4jConnector.getInstance().getConnection().run( "MATCH (me:User { id: "+userId+" })-[:RATED]->(movie:Movie) -[:CATEGORIZED_AS]->(g:Genre) RETURN movie.title as movies, collect(g.name) as genre;" );
}
else{
result = Neo4jConnector.getInstance().getConnection().run( "MATCH (m:Movie) -[:CATEGORIZED_AS]->(g:Genre) RETURN m.title as movies, collect(g.name) as genre;" );
}
} catch (ConnectException ex) {
Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex);
}
finally{
Neo4jConnector.getInstance().close();
}
while ( result.hasNext() )
{
Record record = result.next();
String[] listGenre = record.get("genre").toString().split(",");
List<Genre> listTypeGenre = new LinkedList<Genre>();
for(String g : listGenre){
if(g != null)
listTypeGenre.add(new Genre(id, g.replace("\"", "").replace("[", "").replace("]", "")));
}
movies.add(new Movie(id, record.get("movies").asString(), (listTypeGenre.isEmpty())?null:listTypeGenre ) );
id+=1;
}
return movies;
}
public static List<Rating>GetMoviesRatingNeo4JByUser(Integer userId){
List<Rating> moviesRating = new LinkedList<Rating>();
StatementResult result = null;
try {
if (userId != null && userId >=0 ){
result = Neo4jConnector.getInstance().getConnection().run( "MATCH (u:User{id:"+userId+"})-[r:RATED]->(m:Movie)-[:CATEGORIZED_AS]->(g:Genre) RETURN m.id AS id, m.title AS title, collect(g.name) AS genre, r.note AS note ORDER BY id" );
}
else{
return null;
}
} catch (ConnectException ex) {
Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex);
}
finally{
Neo4jConnector.getInstance().close();
}
Movie movie = null;
Rating rate = null;
while ( result.hasNext() )
{
Record record = result.next();
System.out.println(record.get("p").toString());
String[] listGenre = record.get("genre").toString().split(",");
List<Genre> listTypeGenre = new LinkedList<Genre>();
for(String g : listGenre){
if(g != null)
listTypeGenre.add(new Genre(0, g.replace("\"", "").replace("[", "").replace("]", "")));
}
movie = new Movie(record.get("id").asInt(), record.get("title").asString(),listTypeGenre );
rate = new Rating(movie, userId, record.get("note").asInt());
moviesRating.add(rate);
}
return moviesRating;
}
}