/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* JBoss, Home of Professional Open Source
* Copyright 2012-2013 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.hibernate.ogm.datastore.mongodb.impl;
import java.net.UnknownHostException;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.ogm.datastore.mongodb.AssociationStorage;
import org.hibernate.ogm.datastore.mongodb.impl.configuration.MongoDBConfiguration;
import org.hibernate.ogm.datastore.spi.DatastoreProvider;
import org.hibernate.ogm.dialect.GridDialect;
import org.hibernate.ogm.dialect.mongodb.MongoDBDialect;
import org.hibernate.ogm.dialect.mongodb.query.parsing.MongoDBBasedQueryParserService;
import org.hibernate.ogm.logging.mongodb.impl.Log;
import org.hibernate.ogm.logging.mongodb.impl.LoggerFactory;
import org.hibernate.ogm.service.impl.QueryParserService;
import org.hibernate.service.spi.Configurable;
import org.hibernate.service.spi.Startable;
import org.hibernate.service.spi.Stoppable;
import com.mongodb.DB;
import com.mongodb.MongoClient;
import com.mongodb.ServerAddress;
/**
* Provides access to MongoDB system
*
* @author Guillaume Scheibel<guillaume.scheibel@gmail.com>
*/
public class MongoDBDatastoreProvider implements DatastoreProvider, Startable, Stoppable, Configurable {
private static final Log log = LoggerFactory.getLogger();
private boolean isCacheStarted;
private MongoClient mongo;
private DB mongoDb;
private final MongoDBConfiguration config = new MongoDBConfiguration();
@Override
public void configure(Map configurationValues) {
this.config.initialize( configurationValues );
}
public AssociationStorage getAssociationStorage() {
return config.getAssociationStorage();
}
@Override
public Class<? extends GridDialect> getDefaultDialect() {
return MongoDBDialect.class;
}
@Override
public Class<? extends QueryParserService> getDefaultQueryParserServiceType() {
return MongoDBBasedQueryParserService.class;
}
@Override
public void start() {
if ( !isCacheStarted ) {
try {
ServerAddress serverAddress = new ServerAddress( config.getHost(), config.getPort() );
this.mongo = new MongoClient( serverAddress, config.buildOptions() );
this.isCacheStarted = true;
}
catch ( UnknownHostException e ) {
throw log.mongoOnUnknownHost( config.getHost() );
}
catch ( RuntimeException e ) {
throw log.unableToInitializeMongoDB( e );
}
mongoDb = extractDatabase();
}
}
@Override
public void stop() {
log.disconnectingFromMongo();
this.mongo.close();
}
public DB getDatabase() {
return mongoDb;
}
private DB extractDatabase() {
try {
if ( config.getUsername() != null ) {
DB admin = this.mongo.getDB( "admin" );
boolean auth = admin.authenticate( config.getUsername(), config.getPassword().toCharArray() );
if ( !auth ) {
throw log.authenticationFailed( config.getUsername() );
}
}
if ( !this.mongo.getDatabaseNames().contains( config.getDatabaseName() ) ) {
log.creatingDatabase( config.getDatabaseName() );
}
return this.mongo.getDB( config.getDatabaseName() );
}
catch ( HibernateException e ) {
throw e;
}
catch ( Exception e ) {
throw log.unableToConnectToDatastore( this.config.getHost(), this.config.getPort(), e );
}
}
}