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

   1 /*
   2 * ============LICENSE_START=======================================================
   3 * ONAP : DataLake
   4 * ================================================================================
   5 * Copyright 2019 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 package org.onap.datalake.feeder.controller;
  21
  22 import java.io.IOException;
  23 import java.util.*;
  24
  25 import javax.servlet.http.HttpServletResponse;
  26
  27 import io.swagger.annotations.*;
  28 import org.onap.datalake.feeder.domain.Db;
  29 import org.onap.datalake.feeder.domain.Topic;
  30 import org.onap.datalake.feeder.repository.DbRepository;
  31 import org.onap.datalake.feeder.repository.TopicRepository;
  32 import org.onap.datalake.feeder.service.DbService;
  33 import org.onap.datalake.feeder.controller.domain.DbConfig;
  34 import org.onap.datalake.feeder.controller.domain.PostReturnBody;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37 import org.springframework.beans.factory.annotation.Autowired;
  38 import org.springframework.http.MediaType;
  39 import org.springframework.validation.BindingResult;
  40 import org.springframework.web.bind.annotation.*;
  41
  42 import io.swagger.annotations.Api;
  43 import io.swagger.annotations.ApiOperation;
  44 import io.swagger.annotations.ApiResponse;
  45 import io.swagger.annotations.ApiResponses;
  46
  47 /**
  48  * This controller manages the big data storage settings. All the settings are
  49  * saved in database.
  50  *
  51  * @author Guobiao Mo
  52  *
  53  */
  54
  55 @RestController
  56 @RequestMapping(value = "/dbs", produces = { MediaType.APPLICATION_JSON_VALUE })
  57
  58 //@Api(value = "db", consumes = "application/json", produces = "application/json")
  59 public class DbController {
  60
  61         private final Logger log = LoggerFactory.getLogger(this.getClass());
  62
  63         @Autowired
  64         private DbRepository dbRepository;
  65
  66         @Autowired
  67         private TopicRepository topicRepository;
  68
  69         @Autowired
  70         private DbService dbService;
  71
  72         //list all dbs
  73         @GetMapping("")
  74         @ResponseBody
  75         @ApiOperation(value="Gat all databases name")
  76         //public Iterable<Db> list() throws IOException {
  77         public List<String> list() throws IOException {
  78                 Iterable<Db> ret = dbRepository.findAll();
  79                 List<String> retString = new ArrayList<>();
  80                 for(Db db : ret)
  81                 {
  82                         log.info(db.getName());
  83                         retString.add(db.getName());
  84
  85                 }
  86                 return retString;
  87         }
  88
  89         //Create a  DB
  90         @PostMapping("")
  91         @ResponseBody
  92         @ApiOperation(value="Create a new database.")
  93         public PostReturnBody<DbConfig> createDb(@RequestBody DbConfig dbConfig, BindingResult result, HttpServletResponse response) throws IOException {
  94                 if (result.hasErrors()) {
  95                         sendError(response, 400, "Malformed format of Post body: " + result.toString());
  96                         return null;
  97                 }
  98
  99                 Db oldDb = dbService.getDb(dbConfig.getName());
 100                 if (oldDb != null) {
 101                         sendError(response, 400, "Db already exists: " + dbConfig.getName());
 102                         return null;
 103                 } else {
 104                         Db newdb = new Db();
 105                         newdb.setName(dbConfig.getName());
 106                         newdb.setHost(dbConfig.getHost());
 107                         newdb.setPort(dbConfig.getPort());
 108                         newdb.setLogin(dbConfig.getLogin());
 109                         newdb.setPass(dbConfig.getPassword());
 110                         newdb.setEncrypt(false);
 111
 112                         if(dbConfig.getName().equals("Elecsticsearch") || dbConfig.getName().equals("Druid"))
 113                         {
 114                                 newdb.setDatabase(new String(dbConfig.getDatabase()));
 115                         }
 116                         dbRepository.save(newdb);
 117                         DbConfig retMsg;
 118                         PostReturnBody<DbConfig> retBody = new PostReturnBody<>();
 119                         retMsg = new DbConfig();
 120                         composeRetMessagefromDbConfig(newdb, retMsg);
 121                         retBody.setReturnBody(retMsg);
 122                         retBody.setStatusCode(200);
 123                         return retBody;
 124                 }
 125         }
 126
 127         //Show a db
 128         //the topics are missing in the return, since in we use @JsonBackReference on Db's topics
 129         //need to the the following method to retrieve the topic list
 130         @GetMapping("/{dbName}")
 131         @ResponseBody
 132         @ApiOperation(value="Get a database's details.")
 133         public Db getDb(@PathVariable("dbName") String dbName, HttpServletResponse response) throws IOException {
 134                 /*Db db = dbService.getDb(dbName);
 135                 if (db == null) {
 136                         sendError(response, 404, "Db not found: " + dbName);
 137                 }*/
 138                 Db db = dbRepository.findByName(dbName);
 139                 if (db == null) {
 140                         sendError(response, 404, "Db not found: " + dbName);
 141                 }
 142                 return db;
 143         }
 144
 145
 146         //Update Db
 147         @PutMapping("/{dbName}")
 148         @ResponseBody
 149         @ApiOperation(value="Update a database.")
 150         public PostReturnBody<DbConfig> updateDb(@PathVariable("dbName") String dbName, @RequestBody DbConfig dbConfig, BindingResult result, HttpServletResponse response) throws IOException {
 151
 152                 if (result.hasErrors()) {
 153                         sendError(response, 400, "Error parsing DB: " + result.toString());
 154                         return null;
 155                 }
 156
 157                 Db oldDb = dbService.getDb(dbConfig.getName());
 158                 if (oldDb == null) {
 159                         sendError(response, 404, "Db not found: " + dbConfig.getName());
 160                         return null;
 161                 } else {
 162                         oldDb.setName(dbConfig.getName());
 163                         oldDb.setHost(dbConfig.getHost());
 164                         oldDb.setPort(dbConfig.getPort());
 165                         oldDb.setLogin(dbConfig.getLogin());
 166                         oldDb.setPass(dbConfig.getPassword());
 167                         oldDb.setEncrypt(false);
 168
 169                         if(oldDb.getName().equals("Elecsticsearch") || oldDb.getName().equals("Druid"))
 170                         {
 171                                 oldDb.setDatabase(dbConfig.getDatabase());
 172                         }
 173                         dbRepository.save(oldDb);
 174                         DbConfig retMsg;
 175                         PostReturnBody<DbConfig> retBody = new PostReturnBody<>();
 176                         retMsg = new DbConfig();
 177                         composeRetMessagefromDbConfig(oldDb, retMsg);
 178                         retBody.setReturnBody(retMsg);
 179                         retBody.setStatusCode(200);
 180                         return retBody;
 181                 }
 182         }
 183
 184         //Delete a db
 185         //the topics are missing in the return, since in we use @JsonBackReference on Db's topics
 186         //need to the the following method to retrieve the topic list
 187         @DeleteMapping("/{dbName}")
 188         @ResponseBody
 189         @ApiOperation(value="Delete a database.")
 190         public void deleteDb(@PathVariable("dbName") String dbName, HttpServletResponse response) throws IOException {
 191
 192                 Db delDb = dbRepository.findByName(dbName);
 193                 if (delDb == null) {
 194                         sendError(response, 404, "Db not found: " + dbName);
 195                 }
 196                 Set<Topic> topicRelation = delDb.getTopics();
 197                 topicRelation.clear();
 198                 dbRepository.save(delDb);
 199                 dbRepository.delete(delDb);
 200                 response.setStatus(204);
 201         }
 202
 203         //Read topics in a DB
 204         @GetMapping("/{dbName}/topics")
 205         @ResponseBody
 206         @ApiOperation(value="Get a database's all topics.")
 207         public Set<Topic> getDbTopics(@PathVariable("dbName") String dbName, HttpServletResponse response) throws IOException {
 208                 //Db db = dbService.getDb(dbName);
 209                 Set<Topic> topics;
 210                 try {
 211                         Db db = dbRepository.findByName(dbName);
 212                         topics = db.getTopics();
 213                 }catch(Exception ex)
 214                 {
 215                         sendError(response, 404, "DB: " + dbName + " or Topics not found");
 216                         return null;
 217
 218                 }
 219                 return topics;
 220         }
 221
 222
 223         @PostMapping("/verify")
 224         @ResponseBody
 225         @ApiOperation(value="Database connection verification")
 226         public PostReturnBody<DbConfig> verifyDbConnection(@RequestBody DbConfig dbConfig, HttpServletResponse response) throws IOException {
 227
 228                 /*
 229                         Not implemented yet.
 230                  */
 231
 232                 response.setStatus(501);
 233                 return null;
 234         }
 235
 236         private void composeRetMessagefromDbConfig(Db db, DbConfig dbConfigMsg)
 237         {
 238                 dbConfigMsg.setName(db.getName());
 239                 dbConfigMsg.setHost(db.getHost());
 240                 dbConfigMsg.setPort(db.getPort());
 241         }
 242
 243         private void sendError(HttpServletResponse response, int sc, String msg) throws IOException {
 244                 log.info(msg);
 245                 response.sendError(sc, msg);
 246         }
 247 }