    001// Copyright 2013 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007// http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.internal.mongodb;
    016
    017import com.mongodb.*;
    018import org.apache.tapestry5.ioc.annotations.Symbol;
    019import org.apache.tapestry5.mongodb.MongoDBSource;
    020import org.apache.tapestry5.mongodb.MongoDBSymbols;
    021import org.slf4j.Logger;
    022
    023import java.net.UnknownHostException;
    024import java.util.List;
    025
    026/**
    027 * Default implementation for {@link org.apache.tapestry5.mongodb.MongoDBSource}
    028 */
    029public class MongoDBSourceImpl implements MongoDBSource
    030{
    031    private final Logger logger;
    032
    033    private final MongoClient mongoClient;
    034
    035
    036    public MongoDBSourceImpl(Logger logger,
    037            @Symbol(MongoDBSymbols.CONNECTIONS_PER_HOSTS) int connectionPerHost,
    038            @Symbol(MongoDBSymbols.READ_PREFERENCE) ReadPreference readPreference,
    039            @Symbol(MongoDBSymbols.WRITE_CONCERN) WriteConcern writeConcern,
    040            List<ServerAddress> serverAddresses)
    041    {
    042        this.logger = logger;
    043
    044                MongoClientOptions options = new MongoClientOptions.Builder()
    045                                .connectionsPerHost(connectionPerHost)
    046                                .writeConcern(writeConcern).readPreference(readPreference)
    047                                .build();
    048
    049        if (serverAddresses.isEmpty())
    050                {
    051                        try
    052                        {
    053                                mongoClient = new MongoClient(new ServerAddress(), options);
    054                        }
    055                        catch (UnknownHostException uhe)
    056                        {
    057                                throw new RuntimeException(uhe);
    058                        }
    059                }
    060        else
    061                {
    062            mongoClient = new MongoClient(serverAddresses, options);
    063                }
    064    }
    065
    066    public MongoClient getMongo()
    067    {
    068        return this.mongoClient;
    069    }
    070}