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/*
* ============LICENSE_START=======================================================
* ONAP : DATALAKE
* ================================================================================
* Copyright 2018 China Mobile
*=================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.datalake.feeder.service;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import org.apache.commons.lang3.StringUtils;
import org.bson.Document;
import org.json.JSONObject;
import org.onap.datalake.feeder.domain.Db;
import org.onap.datalake.feeder.domain.Topic;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.mongodb.MongoClient;
import com.mongodb.MongoClientOptions;
import com.mongodb.MongoClientOptions.Builder;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
/**
* Service to use MongoDB
*
* @author Guobiao Mo
*
*/
@Service
public class MongodbService {
private final Logger log = LoggerFactory.getLogger(this.getClass());
@Autowired
private DbService dbService;
private MongoDatabase database;
private MongoClient mongoClient;
private Map<String, MongoCollection<Document>> mongoCollectionMap = new HashMap<>();
@PostConstruct
private void init() {
Db mongodb = dbService.getMongoDB();
String host = mongodb.getHost();
Integer port = mongodb.getPort();
if (port == null || port == 0) {
port = 27017; //MongoDB default
}
String databaseName = mongodb.getDatabase();
String userName = mongodb.getLogin();
String password = mongodb.getPass();
MongoCredential credential = null;
if (StringUtils.isNoneBlank(userName) && StringUtils.isNoneBlank(password)) {
credential = MongoCredential.createCredential(userName, databaseName, password.toCharArray());
}
Builder builder = MongoClientOptions.builder();
builder.serverSelectionTimeout(30000);//server selection timeout, in milliseconds
//http://mongodb.github.io/mongo-java-driver/3.0/driver/reference/connecting/ssl/
builder.sslEnabled(Boolean.TRUE.equals(mongodb.getEncrypt()));// getEncrypt() can be null
MongoClientOptions options = builder.build();
mongoClient = new MongoClient(new ServerAddress(host, port), credential, options);
database = mongoClient.getDatabase(mongodb.getDatabase());
}
@PreDestroy
public void cleanUp() {
mongoClient.close();
}
public void saveJsons(Topic topic, List<JSONObject> jsons) {
List<Document> documents = new ArrayList<>(jsons.size());
for (JSONObject json : jsons) {
//convert org.json JSONObject to MongoDB Document
Document doc = Document.parse(json.toString());
String id = topic.getMessageId(json); //id can be null
if (id != null) {
doc.put("_id", id);
}
documents.add(doc);
}
String collectionName = topic.getName().replaceAll("[^a-zA-Z0-9]", "");//remove - _ .
MongoCollection<Document> collection = mongoCollectionMap.computeIfAbsent(collectionName, k -> database.getCollection(k));
collection.insertMany(documents);
log.debug("saved text to topic = {}, topic total count = {} ", topic, collection.countDocuments());
}
}
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