Java tutorial
/* * 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.conventus.mongodb.infrastructure; import com.mongodb.MongoClient; import com.mongodb.ServerAddress; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.net.UnknownHostException; import java.util.Arrays; import java.util.Properties; /** * * @author JuanAlejandro */ public enum MongoResource { INSTANCE; private MongoClient mongoClient; private Properties properties; private MongoResource() { try { // if (properties == null) // { // try // { // properties = loadProperties(); // } // catch (IOException e) // { // e.printStackTrace(); // } // } if (mongoClient == null) mongoClient = createClient(); } catch (Exception e) { e.printStackTrace(); } } private static Properties loadProperties() throws IOException { Properties properties = new Properties(); InputStream inputStream = MongoResource.class.getResourceAsStream("/mongodb.properties"); if (inputStream == null) { throw new FileNotFoundException("not loaded!"); } properties.load(inputStream); return properties; } private MongoClient createClient() { try { String host = "localhost";//properties.getProperty("host"); Integer primaryPort = 27017;//Integer.valueOf(properties.getProperty("primary-port")); return new MongoClient(host, primaryPort); } catch (UnknownHostException uh) { uh.printStackTrace(); } return null; } public MongoClient getClient() { return mongoClient; } }