| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 com.epam.dlab.mongo; |
| |
| import com.mongodb.MongoClient; |
| import com.mongodb.WriteConcern; |
| import com.mongodb.client.MongoCollection; |
| import com.mongodb.client.MongoDatabase; |
| import org.bson.Document; |
| |
| public class MongoService { |
| private MongoClient client; |
| private String databaseName; |
| private MongoDatabase database; |
| |
| private static final Document PING = new Document("ping", "1"); |
| |
| public MongoService(MongoClient client, |
| String databaseName, |
| WriteConcern writeConcern) { |
| this(client, databaseName); |
| database = database.withWriteConcern(writeConcern); |
| } |
| |
| public MongoService(MongoClient client, String databaseName) { |
| this.client = client; |
| this.databaseName = databaseName; |
| this.database = client.getDatabase(databaseName); |
| } |
| |
| public boolean collectionExists(String name) { |
| for (String c : database.listCollectionNames()) { |
| if (c.equals(name)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public MongoCollection<Document> getCollection(String name) { |
| return database.getCollection(name, Document.class); |
| } |
| |
| public <T> MongoCollection<T> getCollection(String name, Class<T> c) { |
| return database.getCollection(name, c); |
| } |
| |
| public void createCollection(String name) { |
| database.createCollection(name); |
| } |
| |
| public String getDatabaseName() { |
| return databaseName; |
| } |
| |
| public MongoClient getClient() { |
| return client; |
| } |
| |
| public Document ping() { |
| return database.runCommand(PING); |
| } |
| } |