2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright 2018 China Mobile
6 *=================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.datalake.feeder.service;
23 import java.util.ArrayList;
24 import java.util.HashMap;
25 import java.util.List;
28 import javax.annotation.PostConstruct;
29 import javax.annotation.PreDestroy;
31 import org.bson.Document;
33 import org.json.JSONObject;
35 import org.onap.datalake.feeder.domain.Db;
36 import org.onap.datalake.feeder.domain.Topic;
37 import org.slf4j.Logger;
38 import org.slf4j.LoggerFactory;
40 import org.springframework.beans.factory.annotation.Autowired;
41 import org.springframework.stereotype.Service;
43 import com.mongodb.MongoClient;
44 import com.mongodb.client.MongoCollection;
45 import com.mongodb.client.MongoDatabase;
48 * Service to use MongoDB
54 public class MongodbService {
56 private final Logger log = LoggerFactory.getLogger(this.getClass());
59 private DbService dbService;
61 private MongoDatabase database;
62 private MongoClient mongoClient;
63 private Map<String, MongoCollection<Document>> mongoCollectionMap = new HashMap<>();
67 Db mongodb = dbService.getMongoDB();
69 mongoClient = new MongoClient(mongodb.getHost(), mongodb.getPort());
70 database = mongoClient.getDatabase(mongodb.getProperty1());
74 public void cleanUp() {
78 public void saveJsons(Topic topic, List<JSONObject> jsons) {
79 List<Document> documents = new ArrayList<>(jsons.size());
80 for (JSONObject json : jsons) {
81 //convert org.json JSONObject to MongoDB Document
82 Document doc = Document.parse(json.toString());
84 String id = topic.getMessageId(json); //id can be null
91 String collectionName = topic.getName().replaceAll("[^a-zA-Z0-9]","");//remove - _ .
92 MongoCollection<Document> collection = mongoCollectionMap.computeIfAbsent(collectionName, k -> database.getCollection(k));
93 collection.insertMany(documents);
95 log.debug("saved text to topic = {}, topic total count = {} ", topic, collection.countDocuments());