gerrit.onap Code Review - dcaegen2/services.git/blob

   1 /*
   2 * ============LICENSE_START=======================================================
   3 * ONAP : DATALAKE
   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
  10 *
  11 *     http://www.apache.org/licenses/LICENSE-2.0
  12 *
  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=========================================================
  19 */
  20
  21 package org.onap.datalake.feeder.service;
  22
  23 import java.util.ArrayList;
  24 import java.util.HashMap;
  25 import java.util.List;
  26 import java.util.Map;
  27
  28 import javax.annotation.PostConstruct;
  29 import javax.annotation.PreDestroy;
  30
  31 import org.apache.commons.lang3.StringUtils;
  32 import org.bson.Document;
  33
  34 import org.json.JSONObject;
  35 import org.onap.datalake.feeder.config.ApplicationConfiguration;
  36 import org.onap.datalake.feeder.domain.Db;
  37 import org.onap.datalake.feeder.dto.TopicConfig;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 import org.springframework.beans.factory.annotation.Autowired;
  42 import org.springframework.stereotype.Service;
  43
  44 import com.mongodb.bulk.BulkWriteError;
  45 import com.mongodb.MongoBulkWriteException;
  46 import com.mongodb.MongoClient;
  47 import com.mongodb.MongoClientOptions;
  48 import com.mongodb.MongoClientOptions.Builder;
  49 import com.mongodb.MongoCredential;
  50 import com.mongodb.ServerAddress;
  51 import com.mongodb.client.MongoCollection;
  52 import com.mongodb.client.MongoDatabase;
  53 import com.mongodb.client.model.InsertManyOptions;
  54
  55 /**
  56  * Service for using MongoDB
  57  *
  58  * @author Guobiao Mo
  59  *
  60  */
  61 @Service
  62 public class MongodbService {
  63
  64         private final Logger log = LoggerFactory.getLogger(this.getClass());
  65
  66         @Autowired
  67         private ApplicationConfiguration config;
  68         private boolean dbReady = false;
  69
  70         @Autowired
  71         private DbService dbService;
  72
  73         private MongoDatabase database;
  74         private MongoClient mongoClient;
  75         private Map<String, MongoCollection<Document>> mongoCollectionMap = new HashMap<>();
  76         private InsertManyOptions insertManyOptions;
  77
  78         @PostConstruct
  79         private void init() {
  80                 Db mongodb = dbService.getMongoDB();
  81
  82                 String host = mongodb.getHost();
  83
  84                 Integer port = mongodb.getPort();
  85                 if (port == null || port == 0) {
  86                         port = 27017; //MongoDB default
  87                 }
  88
  89                 String databaseName = mongodb.getDatabase();
  90                 String userName = mongodb.getLogin();
  91                 String password = mongodb.getPass();
  92
  93                 MongoCredential credential = null;
  94                 if (StringUtils.isNoneBlank(userName) && StringUtils.isNoneBlank(password)) {
  95                         credential = MongoCredential.createCredential(userName, databaseName, password.toCharArray());
  96                 }
  97
  98                 Builder builder = MongoClientOptions.builder();
  99                 builder.serverSelectionTimeout(30000);//server selection timeout, in milliseconds
 100
 101                 //http://mongodb.github.io/mongo-java-driver/3.0/driver/reference/connecting/ssl/
 102                 if (config.isEnableSSL()) {
 103                         builder.sslEnabled(Boolean.TRUE.equals(mongodb.getEncrypt()));// getEncrypt() can be null
 104                 }
 105                 MongoClientOptions options = builder.build();
 106                 List<ServerAddress> addrs = new ArrayList<ServerAddress>();
 107
 108                 addrs.add(new ServerAddress(host, port)); // FIXME should be a list of address
 109
 110                 try {
 111                         if (StringUtils.isNoneBlank(userName) && StringUtils.isNoneBlank(password)) {
 112                                 credential = MongoCredential.createCredential(userName, databaseName, password.toCharArray());
 113                                 List<MongoCredential> credentialList = new ArrayList<MongoCredential>();
 114                                 credentialList.add(credential);
 115                                 mongoClient = new MongoClient(addrs, credentialList, options);
 116                         } else {
 117                                 mongoClient = new MongoClient(addrs, options);
 118                         }
 119                 } catch (Exception ex) {
 120                         dbReady = false;
 121                         log.error("Fail to initiate MongoDB" + mongodb.getHost());
 122                         return;
 123                 }
 124                 database = mongoClient.getDatabase(mongodb.getDatabase());
 125
 126                 insertManyOptions = new InsertManyOptions();
 127                 insertManyOptions.ordered(false);
 128
 129                 dbReady = true;
 130         }
 131
 132         @PreDestroy
 133         public void cleanUp() {
 134                 config.getShutdownLock().readLock().lock();
 135
 136                 try {
 137                         log.info("mongoClient.close() at cleanUp.");
 138                         mongoClient.close();
 139                 } finally {
 140                         config.getShutdownLock().readLock().unlock();
 141                 }
 142         }
 143
 144         public void saveJsons(TopicConfig topic, List<JSONObject> jsons) {
 145                 if (dbReady == false)//TOD throw exception
 146                         return;
 147                 List<Document> documents = new ArrayList<>(jsons.size());
 148                 for (JSONObject json : jsons) {
 149                         //convert org.json JSONObject to MongoDB Document
 150                         Document doc = Document.parse(json.toString());
 151
 152                         String id = topic.getMessageId(json); //id can be null
 153                         if (id != null) {
 154                                 doc.put("_id", id);
 155                         }
 156                         documents.add(doc);
 157                 }
 158
 159                 String collectionName = topic.getName().replaceAll("[^a-zA-Z0-9]", "");//remove - _ .
 160                 MongoCollection<Document> collection = mongoCollectionMap.computeIfAbsent(collectionName, k -> database.getCollection(k));
 161
 162                 try {
 163                         collection.insertMany(documents, insertManyOptions);
 164                 } catch (MongoBulkWriteException e) {
 165                         List<BulkWriteError> bulkWriteErrors = e.getWriteErrors();
 166                         for (BulkWriteError bulkWriteError : bulkWriteErrors) {
 167                                 log.error("Failed record: {}", bulkWriteError);
 168                         }
 169                 }
 170
 171                 log.debug("saved text to topic = {}, batch count = {} ", topic, jsons.size());
 172         }
 173
 174 }