RemoteDatabaseConfigurationExample.java Source code

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Here is the source code for RemoteDatabaseConfigurationExample.java

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/**
 *      Copyright (C) 2010 Lowereast Software
 *
 *   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.
 */

import com.google.inject.Guice;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.mattinsler.guiceymongo.guice.GuiceyMongo;
import com.mattinsler.guiceymongo.guice.annotation.MongoDatabase;
import com.mongodb.DB;
import com.mongodb.ReadPreference;
import com.mongodb.ServerAddress;

import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.List;

public class RemoteDatabaseConfigurationExample {
    @Inject
    RemoteDatabaseConfigurationExample(@MongoDatabase(Databases.Main) DB mainDatabase,
            @MongoDatabase(Databases.Search) DB searchDatabase) {
        System.out.println(mainDatabase);
        System.out.println(mainDatabase.getReadPreference());

        System.out.println(searchDatabase);
        System.out.println(searchDatabase.getReadPreference());
    }

    public static void main(String[] args) throws UnknownHostException {
        List<ServerAddress> seeds = Arrays.asList(new ServerAddress("localhost", 27017));

        Injector injector = Guice.createInjector(
                // create a connection to localhost:13731 that can be used by databases
                GuiceyMongo.configureConnection(Connections.Primary).port(13731),

                // create a connection to a ReplicatSet that can be used by databases
                GuiceyMongo.configureConnection(Connections.ReplicaSet).seeds(seeds),

                // create the production configuration
                GuiceyMongo.configure(Configurations.Production)
                        // configure the Main database to use the Primary connection (localhost:13731)
                        .mapDatabase(Databases.Main).to("prod_db").overConnection(Connections.ReplicaSet)
                        .mapDatabase(Databases.Search).to("prod_search_db"),

                // create the test configuration
                GuiceyMongo.configure(Configurations.Test)
                        // configure the Main database to use the Primary connection (localhost:13731)
                        .mapDatabase(Databases.Main).to("test_db").overConnection(Connections.ReplicaSet),

                // configurations can be augmented in separate modules
                GuiceyMongo.configure(Configurations.Test).mapDatabase(Databases.Search).to("test_search_db"),

                // choose the configuration to use
                GuiceyMongo.chooseConfiguration(Configurations.Test));

        injector.getInstance(RemoteDatabaseConfigurationExample.class);
    }
}