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M2MovieRecommander
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Mongodb get films

This commit is contained in:
Quentin Rouland 2016-11-30 11:42:41 +01:00
parent f4bce97596
commit 3b1d0ffefe
1 changed files with 62 additions and 8 deletions
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70
src/main/java/com/camillepradel/movierecommender/controller/MainController.java
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@ -11,6 +11,17 @@ import org.springframework.web.servlet.ModelAndView;
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;
@Controller
public class MainController {
@ -34,18 +45,61 @@ public class MainController {
// TODO: write query to retrieve all movies from DB or all movies rated by user with id userId,
// depending on whether or not a value was given for userId
List<Movie> movies = new LinkedList<Movie>();
Genre genre0 = new Genre(0, "genre0");
Genre genre1 = new Genre(1, "genre1");
Genre genre2 = new Genre(2, "genre2");
movies.add(new Movie(0, "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})));
movies.add(new Movie(1, "Titre 1", Arrays.asList(new Genre[] {genre0, genre2})));
movies.add(new Movie(2, "Titre 2", Arrays.asList(new Genre[] {genre1})));
movies.add(new Movie(3, "Titre 3", Arrays.asList(new Genre[] {genre0, genre1, genre2})));
List<Movie> movies = getMoviesMongoDBByUser(userId);
ModelAndView mv = new ModelAndView("movies");
mv.addObject("userId", userId);
mv.addObject("movies", movies);
return mv;
}
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;
}
}