This commit is contained in:
Quentin Rouland 2016-12-01 10:03:45 +01:00
parent fd1b24d35e
commit a72a92de3c
1 changed files with 5 additions and 161 deletions

View File

@ -13,26 +13,7 @@ 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;
import java.util.HashMap;
import java.util.Iterator;
@Controller
public class MainController {
@ -54,161 +35,24 @@ public class MainController {
@RequestParam(value = "user_id", required = false) Integer userId) {
//List<Movie> movies = getMoviesNeo4JByUser(userId);
List<Movie> movies = getMoviesMongoDBByUser(userId);
List<Movie> movies = MongoDBController.getMoviesMongoDBByUser(userId);
ModelAndView mv = new ModelAndView("movies");
mv.addObject("userId", userId);
mv.addObject("movies", movies);
return mv;
}
public List<Movie>getMoviesNeo4JByUser (Integer userId){
List<Movie> movies = new LinkedList<Movie>();
String oldMovie=null;
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 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("$in", list));
cursor = movies.find(inQuery).iterator();
}
else
{
cursor = movies.find().iterator();
}
while (cursor.hasNext()) {
Document movie = cursor.next();
String[] genres;
genres = movie.getString("genres").split("\\|");
ArrayList<Genre> listGenres = new ArrayList<Genre>();
for(String genre : genres){
listGenres.add(new Genre(1,genre));
}
listMovies.add(new Movie(movie.getInteger("_id"), movie.getString("title"), listGenres));
}
return listMovies;
}
public List<Rating>getRatingMongoDBByUser(Integer user_id){
ArrayList<Rating> listRating= new ArrayList<Rating>();
MongoCursor<Document> cursor;
MongoDatabase db = MongoDBConnector.getInstance().getConnexion();
MongoCollection<Document> users = db.getCollection("users");
MongoCollection<Document> movies = db.getCollection("movies");
BasicDBObject whereQuery = new BasicDBObject();
whereQuery.put("_id", user_id);
cursor = users.find(whereQuery).iterator();
Document user;
try {
user = cursor.next();
} catch(Exception e)
{
return new ArrayList<Rating>();
}
ArrayList<Document> user_movies = (ArrayList) user.get("movies");
BasicDBObject inQuery = new BasicDBObject();
HashMap<Integer,Integer> list = new HashMap<Integer,Integer>();
for(Document movie : user_movies)
list.put(movie.getInteger("movieid"),movie.getInteger("rating"));
inQuery.put("_id", new BasicDBObject("$in", list.keySet()));
cursor = movies.find(inQuery).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));
}
listRating.add(new Rating(new Movie(movie.getInteger("_id"), movie.getString("title"),
listGenres),user_id, list.get(movie.getInteger("_id"))));
}
return listRating;
}
@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);
// 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})));
// write query to retrieve all movies from DB
List<Movie> allMovies = MongoDBController.getMoviesMongoDBByUser(null);
// TODO: write query to retrieve all ratings from the specified user
List<Rating> ratings = getRatingMongoDBByUser(userId);
// 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);