/*
* Copyright 2016 the original author or authors.
*
* 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.springframework.data.mongodb.core;
import java.net.UnknownHostException;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.support.PersistenceExceptionTranslator;
import org.springframework.data.mongodb.ReactiveMongoDatabaseFactory;
import org.springframework.util.Assert;
import com.mongodb.ConnectionString;
import com.mongodb.WriteConcern;
import com.mongodb.reactivestreams.client.MongoClient;
import com.mongodb.reactivestreams.client.MongoClients;
import com.mongodb.reactivestreams.client.MongoDatabase;
/**
* Factory to create {@link MongoDatabase} instances from a {@link MongoClient} instance.
*
* @author Mark Paluch
* @since 2.0
*/
public class SimpleReactiveMongoDatabaseFactory implements DisposableBean, ReactiveMongoDatabaseFactory {
private final MongoClient mongo;
private final String databaseName;
private final boolean mongoInstanceCreated;
private final PersistenceExceptionTranslator exceptionTranslator;
private WriteConcern writeConcern;
/**
* Creates a new {@link SimpleReactiveMongoDatabaseFactory} instance from the given {@link ConnectionString}.
*
* @param connectionString must not be {@literal null}.
* @throws UnknownHostException
*/
public SimpleReactiveMongoDatabaseFactory(ConnectionString connectionString) throws UnknownHostException {
this(MongoClients.create(connectionString), connectionString.getDatabase(), true);
}
/**
* Creates a new {@link SimpleReactiveMongoDatabaseFactory} instance from the given {@link MongoClient}.
*
* @param mongoClient must not be {@literal null}.
* @param databaseName must not be {@literal null}.
* @since 1.7
*/
public SimpleReactiveMongoDatabaseFactory(MongoClient mongoClient, String databaseName) {
this(mongoClient, databaseName, false);
}
private SimpleReactiveMongoDatabaseFactory(MongoClient client, String databaseName, boolean mongoInstanceCreated) {
Assert.notNull(client, "MongoClient must not be null!");
Assert.hasText(databaseName, "Database name must not be empty!");
Assert.isTrue(databaseName.matches("[\\w-]+"),
"Database name must only contain letters, numbers, underscores and dashes!");
this.mongo = client;
this.databaseName = databaseName;
this.mongoInstanceCreated = mongoInstanceCreated;
this.exceptionTranslator = new MongoExceptionTranslator();
}
/**
* Configures the {@link WriteConcern} to be used on the {@link MongoDatabase} instance being created.
*
* @param writeConcern the writeConcern to set
*/
public void setWriteConcern(WriteConcern writeConcern) {
this.writeConcern = writeConcern;
}
/*
* (non-Javadoc)
* @see org.springframework.data.mongodb.ReactiveMongoDbFactory#getMongoDatabase()
*/
public MongoDatabase getMongoDatabase() throws DataAccessException {
return getMongoDatabase(databaseName);
}
/*
* (non-Javadoc)
* @see org.springframework.data.mongodb.ReactiveMongoDbFactory#getMongoDatabase(java.lang.String)
*/
public MongoDatabase getMongoDatabase(String dbName) throws DataAccessException {
Assert.hasText(dbName, "Database name must not be empty.");
MongoDatabase db = ReactiveMongoDbUtils.getMongoDatabase(mongo, dbName);
if (writeConcern != null) {
db = db.withWriteConcern(writeConcern);
}
return db;
}
/**
* Clean up the Mongo instance if it was created by the factory itself.
*
* @see DisposableBean#destroy()
*/
public void destroy() throws Exception {
if (mongoInstanceCreated) {
mongo.close();
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.mongodb.ReactiveMongoDbFactory#getExceptionTranslator()
*/
public PersistenceExceptionTranslator getExceptionTranslator() {
return this.exceptionTranslator;
}
}