/*
* Hibernate OGM, Domain model persistence for NoSQL datastores
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.ogm.datastore.mongodb.impl;
import java.net.UnknownHostException;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
import org.hibernate.ogm.datastore.mongodb.MongoDBDialect;
import org.hibernate.ogm.datastore.mongodb.impl.configuration.MongoDBConfiguration;
import org.hibernate.ogm.datastore.mongodb.logging.impl.Log;
import org.hibernate.ogm.datastore.mongodb.logging.impl.LoggerFactory;
import org.hibernate.ogm.datastore.mongodb.query.parsing.impl.MongoDBBasedQueryParserService;
import org.hibernate.ogm.datastore.spi.BaseDatastoreProvider;
import org.hibernate.ogm.datastore.spi.SchemaDefiner;
import org.hibernate.ogm.dialect.spi.GridDialect;
import org.hibernate.ogm.options.spi.OptionsService;
import org.hibernate.ogm.query.spi.QueryParserService;
import org.hibernate.ogm.util.configurationreader.spi.ConfigurationPropertyReader;
import org.hibernate.service.spi.Configurable;
import org.hibernate.service.spi.ServiceRegistryAwareService;
import org.hibernate.service.spi.ServiceRegistryImplementor;
import org.hibernate.service.spi.Startable;
import org.hibernate.service.spi.Stoppable;
import com.mongodb.DB;
import com.mongodb.MongoClient;
import com.mongodb.MongoClientOptions;
import com.mongodb.ServerAddress;
/**
* Provides access to a MongoDB instance
*
* @author Guillaume Scheibel <guillaume.scheibel@gmail.com>
* @author Gunnar Morling
*/
public class MongoDBDatastoreProvider extends BaseDatastoreProvider implements Startable, Stoppable, Configurable, ServiceRegistryAwareService {
private static final Log log = LoggerFactory.getLogger();
private ServiceRegistryImplementor serviceRegistry;
private MongoClient mongo;
private DB mongoDb;
private MongoDBConfiguration config;
public MongoDBDatastoreProvider() {
}
/**
* Only used in tests.
*/
public MongoDBDatastoreProvider(MongoClient mongoClient) {
this.mongo = mongoClient;
}
@Override
public void configure(Map configurationValues) {
OptionsService optionsService = serviceRegistry.getService( OptionsService.class );
ClassLoaderService classLoaderService = serviceRegistry.getService( ClassLoaderService.class );
ConfigurationPropertyReader propertyReader = new ConfigurationPropertyReader( configurationValues, classLoaderService );
this.config = new MongoDBConfiguration( propertyReader, optionsService.context().getGlobalOptions() );
}
@Override
public void injectServices(ServiceRegistryImplementor serviceRegistry) {
this.serviceRegistry = serviceRegistry;
}
@Override
public Class<? extends GridDialect> getDefaultDialect() {
return MongoDBDialect.class;
}
@Override
public Class<? extends QueryParserService> getDefaultQueryParserServiceType() {
return MongoDBBasedQueryParserService.class;
}
@Override
public Class<? extends SchemaDefiner> getSchemaDefinerType() {
return MongoDBEntityMappingValidator.class;
}
@Override
public void start() {
if ( mongo == null ) {
try {
ServerAddress serverAddress = new ServerAddress( config.getHost(), config.getPort() );
MongoClientOptions clientOptions = config.buildOptions();
log.connectingToMongo( config.getHost(), config.getPort(), clientOptions.getConnectTimeout() );
this.mongo = new MongoClient( serverAddress, clientOptions );
}
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() );
}
}
String databaseName = config.getDatabaseName();
log.connectingToMongoDatabase( databaseName );
if ( !this.mongo.getDatabaseNames().contains( databaseName ) ) {
log.creatingDatabase( databaseName );
}
return this.mongo.getDB( databaseName );
}
catch ( HibernateException e ) {
throw e;
}
catch ( Exception e ) {
throw log.unableToConnectToDatastore( this.config.getHost(), this.config.getPort(), e );
}
}
}