org.ebaysf.ostara.telemetry.mongodb.Database.java Source code

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Here is the source code for org.ebaysf.ostara.telemetry.mongodb.Database.java

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/*******************************************************************************
 * Copyright (c) 2014 eBay Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/
package org.ebaysf.ostara.telemetry.mongodb;

import java.net.UnknownHostException;
import java.sql.SQLException;
import java.util.Arrays;

import javax.naming.NamingException;

import org.mongodb.morphia.Datastore;
import org.mongodb.morphia.Morphia;
import org.slf4j.LoggerFactory;

import com.mongodb.Mongo;
import com.mongodb.MongoClient;
import com.mongodb.MongoException;
import com.mongodb.ServerAddress;

public enum Database {
    instance;

    private static final int DEFAULT_MONGO_PORT = 27017;

    public Datastore getMongoDatastore(String mongoHostOverride)
            throws UnknownHostException, MongoException, NamingException, SQLException {

        Mongo mongoClient;

        String tmpOverride = System.getenv("RMIGWEB_MONGO_HOST");

        if (tmpOverride != null) {
            LoggerFactory.getLogger(Database.class)
                    .info("Using mongo host overridden by system property: " + tmpOverride);
            mongoHostOverride = tmpOverride;
        }

        if (mongoHostOverride == null) {
            mongoClient = new MongoClient(Arrays.asList(new ServerAddress("localhost", DEFAULT_MONGO_PORT)));
        } else {
            mongoClient = new MongoClient(new ServerAddress(mongoHostOverride, DEFAULT_MONGO_PORT));
        }
        Morphia morphia = new Morphia();
        Datastore ds = morphia.createDatastore(mongoClient, "UpdateLog");
        ds.ensureIndexes();
        return ds;
    }

    public static Datastore getAppDatastore(String mongoHostOverride)
            throws UnknownHostException, MongoException, NamingException, SQLException {
        return Database.instance.getMongoDatastore(mongoHostOverride);
    }

}