master
DonRenando 6 years ago
parent dec18968b9
commit 866f0255a1
  1. 1
      .gitignore
  2. 6
      pom.xml
  3. 62
      src/main/java/com/camillepradel/movierecommender/controller/Neo4jConnector.java

1
.gitignore vendored

@ -10,3 +10,4 @@
# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
hs_err_pid*
/target/

@ -50,9 +50,9 @@
</dependency>
<!-- https://mvnrepository.com/artifact/org.neo4j/neo4j -->
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j</artifactId>
<version>3.1.0-M10</version>
<groupId>org.neo4j.driver</groupId>
<artifactId>neo4j-java-driver</artifactId>
<version>1.0.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mongodb/mongo-java-driver -->
<dependency>

@ -0,0 +1,62 @@
/*
* 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 java.net.ConnectException;
import org.neo4j.driver.v1.*;
import org.neo4j.driver.v1.exceptions.Neo4jException;
/**
*
* @author renando
*/
public class Neo4jConnector {
private static Neo4jConnector INSTANCE = null;
private static Session session = null;
private static Driver driver = null;
private Neo4jConnector() {
}
public static synchronized Neo4jConnector getInstance()
{
if (INSTANCE == null)
{
INSTANCE = new Neo4jConnector();
driver = GraphDatabase.driver( "bolt://localhost", AuthTokens.basic( "neo4j", "root1234" ) );
session = driver.session();
}
return INSTANCE;
}
public Session getConnection() throws ConnectException {
if (session == null || driver == null){
Neo4jConnector.getInstance();
}
return this.session;
}
public boolean close() throws ConnectException {
boolean etat = false;
if (session != null) {
try {
session.close();
driver.close();
etat = true;
} catch (Neo4jException e) {
etat = false;
}
} else {
throw new ConnectException();
}
return etat;
}
}