org.mongoj.db.MongoUtil.java Source code

Introduction

Here is the source code for org.mongoj.db.MongoUtil.java

Source

/**
 * Copyright (c) 2011 Prashant Dighe
 *
 * Permission is hereby granted, free of charge, to any person obtaining a 
 * copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the 
 * Software is furnished to do so, subject to the following conditions:
 *    The above copyright notice and this permission notice shall be included 
 *    in all copies or substantial portions of the Software. 
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 */

package org.mongoj.db;

import java.net.UnknownHostException;

import com.mongodb.DB;
import com.mongodb.MongoException;
import com.mongodb.MongoURI;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 * @author Prashant Dighe
 *
 */
public class MongoUtil {

    public static final String ID = "_id";

    public static final String PUSH = "$push";

    public static final String PULL = "$pull";

    public static final String ADD_TO_SET = "$addToSet";

    public static final String EACH = "$each";

    private MongoUtil() {
        try {
            //TODO: read uri from config
            _mongoURI = new MongoURI("mongodb://127.0.0.1:27017/test");

            _db = _mongoURI.connectDB();
        } catch (MongoException e) {
            _log.error(e.getMessage());

            _mongoEnabled = false;
        } catch (UnknownHostException e) {
            _log.error(e.getMessage());

            _mongoEnabled = false;
        }
    }

    public static boolean isMongoEnabled() {
        return _instance._mongoEnabled;
    }

    public static DB getMongoDB() {
        return _instance._db;
    }

    private static MongoUtil _instance = new MongoUtil();

    private static MongoURI _mongoURI = null;

    private boolean _mongoEnabled = false;

    private DB _db = null;

    Logger _log = LoggerFactory.getLogger(MongoUtil.class);

}