MongoHelper is a simple library for easy connections to MongoDB Databases.

MongoHelper.java

package me.pcrunn.mongohelper;

import com.mongodb.DB;
import com.mongodb.MongoClient;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;
import lombok.Data;

import java.util.Collections;

@Data
public class MongoHelper {

    private String host;
    private int port;
    private String database,username,password;
    private boolean auth;
    DB DB;
    MongoClient client;

    public MongoHelper(String host, int port, String database){
        this(host,port,database,"","");
    }

    public MongoHelper(String host, int port, String database, String username, String password) {
        setHost(host);
        setPort(port);
        setDatabase(database);
        setUsername(username);
        setPassword(password);
        connect();
    }

    private boolean connect(){
        if(username==""&&password==""){
            setAuth(false);
        }else{
            setAuth(true);
        }

        try{
            if(auth){
                MongoCredential credentials = MongoCredential.createCredential(username,database,password.toCharArray());
                setClient(new MongoClient(new ServerAddress(host,port), Collections.singletonList(credentials)));
            }else {
                setClient(new MongoClient(new ServerAddress(host,port)));
            }
            setDB(client.getDB(database));
            return true;
        }catch (Exception exception){
            exception.printStackTrace();
            return false;
        }
    }
}