QRouland/M2MovieRecommander
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modif neo Variante V2

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This commit is contained in:
DonRenando 2016-12-11 11:34:31 +01:00
parent ec212b3ab9
commit 44c324ec9a
2 changed files with 9 additions and 7 deletions
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4
src/main/java/com/camillepradel/movierecommender/controller/MainController.java
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@ -18,8 +18,8 @@ public class MainController {
String message = "Welcome to Spring MVC!";
//Commenter et Decommenter en fonction de BD que l'on veut utiliser
DBControllerInterface db = new MongoDBController();
//DBControllerInterface db = new Neo4jConnector();
//DBControllerInterface db = new MongoDBController();
DBControllerInterface db = new Neo4JController();
@RequestMapping("/hello")
public ModelAndView showMessage(

12
src/main/java/com/camillepradel/movierecommender/controller/Neo4JController.java
View File

@ -170,8 +170,8 @@ public class Neo4JController implements DBControllerInterface {
+ "LIMIT 5\n"
+ "MATCH (other_user)-[rat_other_user:RATED]->(m2:Movie)\n"
+ "WHERE NOT ((target_user)-[:RATED]->(m2))\n"
+ "RETURN m2.id AS mov_id, m2.title AS rec_movie_title, rat_other_user.note AS rating, other_user.id AS watched_by\n"
+ "ORDER BY rat_other_user.note DESC");
+ "RETURN m2.id AS mov_id, m2.title AS rec_movie_title, AVG(rat_other_user.note) AS rating, COUNT(other_user.id) AS watched_by\n"
+ "ORDER BY AVG(rat_other_user.note) DESC, COUNT(other_user.id) DESC");
} catch (ConnectException ex) {
Logger.getLogger(Neo4JController.class.getName()).log(Level.SEVERE, null, ex);
@ -181,14 +181,16 @@ public class Neo4JController implements DBControllerInterface {
Record record = null;
int idMovie = 0;
String titre = "";
int note = 0;
Double noteMoyenneDouble = 0.0;
Integer noteMoyenneInt = 0;
while (result.hasNext()) {
record = result.next();
idMovie = record.get("mov_id").asInt();
titre = record.get("rec_movie_title").asString();
note = record.get("rating").asInt();
noteMoyenneDouble = record.get("rating").asDouble();
noteMoyenneInt = noteMoyenneDouble.intValue();
ratings.add(new Rating(new Movie(idMovie, titre,null), userId, note));
ratings.add(new Rating(new Movie(idMovie, titre,null), userId, noteMoyenneInt));
}
return ratings;