plugins/database/databasesink.cpp

   1 #include "databasesink.h"
   2 #include "abstractroutingengine.h"
   3 #include "listplusplus.h"
   4
   5 extern "C" AbstractSinkManager * create(AbstractRoutingEngine* routingengine, map<string, string> config)
   6 {
   7         return new DatabaseSinkManager(routingengine, config);
   8 }
   9
  10 void * cbFunc(gpointer data)
  11 {
  12         Shared *shared = static_cast<Shared*>(data);
  13
  14         if(!shared)
  15         {
  16                 throw std::runtime_error("Could not cast shared object.");
  17         }
  18
  19         vector<DictionaryList<string> > insertList;
  20
  21         while(1)
  22         {
  23                 DBObject* obj = shared->queue.pop();
  24
  25                 if( obj->quit )
  26                 {
  27                         delete obj;
  28                         break;
  29                 }
  30
  31                 DictionaryList<string> dict;
  32
  33                 NameValuePair<string> one("key", obj->key);
  34                 NameValuePair<string> two("value", obj->value);
  35                 NameValuePair<string> three("source", obj->source);
  36                 NameValuePair<string> four("time", boost::lexical_cast<string>(obj->time));
  37                 NameValuePair<string> five("sequence", boost::lexical_cast<string>(obj->sequence));
  38
  39                 dict.push_back(one);
  40                 dict.push_back(two);
  41                 dict.push_back(three);
  42                 dict.push_back(four);
  43                 dict.push_back(five);
  44
  45                 insertList.push_back(dict);
  46
  47                 if(insertList.size() > 100)
  48                 {
  49                         shared->db->exec("BEGIN IMMEDIATE TRANSACTION");
  50                         for(int i=0; i< insertList.size(); i++)
  51                         {
  52                                 DictionaryList<string> d = insertList[i];
  53                                 shared->db->insert(d);
  54                         }
  55                         shared->db->exec("END TRANSACTION");
  56                         insertList.clear();
  57                 }
  58                 delete obj;
  59         }
  60
  61         /// final flush of whatever is still in the queue:
  62
  63         shared->db->exec("BEGIN IMMEDIATE TRANSACTION");
  64         for(int i=0; i< insertList.size(); i++)
  65         {
  66                 DictionaryList<string> d = insertList[i];
  67                 shared->db->insert(d);
  68         }
  69         shared->db->exec("END TRANSACTION");
  70
  71         return NULL;
  72 }
  73
  74 int getNextEvent(gpointer data)
  75 {
  76         PlaybackShared* pbshared = static_cast<PlaybackShared*>(data);
  77
  78         if(!pbshared)
  79                 throw std::runtime_error("failed to cast PlaybackShared object");
  80
  81         if(pbshared->stop)
  82                 return 0;
  83
  84         auto itr = pbshared->playbackQueue.begin();
  85
  86         if(itr == pbshared->playbackQueue.end())
  87         {
  88                 return 0;
  89         }
  90
  91         DBObject* obj = *itr;
  92
  93         AbstractPropertyType* value = VehicleProperty::getPropertyTypeForPropertyNameValue(obj->key,obj->value);
  94
  95         if(value)
  96         {
  97                 pbshared->routingEngine->updateProperty(obj->key, value, pbshared->uuid);
  98                 value->timestamp = obj->time;
  99                 //value->sequence = obj->sequence;
 100         }
 101
 102         if(++itr != pbshared->playbackQueue.end())
 103         {
 104                 DBObject *o2 = *itr;
 105                 double t = o2->time - obj->time;
 106
 107                 if(t > 0)
 108                         g_timeout_add((t*1000) / pbshared->playBackMultiplier, getNextEvent, pbshared);
 109                 else
 110                         g_timeout_add(1, getNextEvent, pbshared);
 111         }
 112
 113         pbshared->playbackQueue.remove(obj);
 114         DebugOut()<<"playback Queue size: "<<pbshared->playbackQueue.size()<<endl;
 115         delete obj;
 116
 117         return 0;
 118 }
 119
 120 DatabaseSink::DatabaseSink(AbstractRoutingEngine *engine, map<std::string, std::string> config)
 121         :AbstractSource(engine,config),thread(NULL),shared(NULL),playback(false),playbackShared(NULL), playbackMultiplier(1)
 122 {
 123         databaseName = "storage";
 124         tablename = "data";
 125         tablecreate = "CREATE TABLE IF NOT EXISTS data (key TEXT, value BLOB, source TEXT, time REAL, sequence REAL)";
 126
 127         if(config.find("databaseFile") != config.end())
 128         {
 129                 setDatabaseFileName(config["databaseFile"]);
 130         }
 131
 132         if(config.find("properties") != config.end())
 133         {
 134                 parseConfig();
 135         }
 136
 137         for(auto itr=propertiesToSubscribeTo.begin();itr!=propertiesToSubscribeTo.end();itr++)
 138         {
 139                 engine->subscribeToProperty(*itr,this);
 140         }
 141
 142         mSupported.push_back(DatabaseFileProperty);
 143         mSupported.push_back(DatabaseLoggingProperty);
 144         mSupported.push_back(DatabasePlaybackProperty);
 145
 146         routingEngine->setSupported(supported(), this);
 147
 148         if(config.find("startOnLoad")!= config.end())
 149         {
 150                 setLogging(true);
 151         }
 152
 153         if(config.find("playbackMultiplier")!= config.end())
 154         {
 155                 playbackMultiplier = boost::lexical_cast<uint>(config["playbackMultiplier"]);
 156         }
 157
 158         if(config.find("playbackOnLoad")!= config.end())
 159         {
 160                 setPlayback(true);
 161         }
 162
 163
 164 }
 165
 166 DatabaseSink::~DatabaseSink()
 167 {
 168         if(shared)
 169         {
 170                 DBObject* obj = new DBObject();
 171                 obj->quit = true;
 172
 173                 shared->queue.append(obj);
 174
 175                 g_thread_join(thread);
 176                 g_thread_unref(thread);
 177                 delete shared;
 178         }
 179
 180         if(playbackShared)
 181         {
 182                 delete playbackShared;
 183         }
 184 }
 185
 186
 187 void DatabaseSink::supportedChanged(PropertyList supportedProperties)
 188 {
 189
 190 }
 191
 192 PropertyList DatabaseSink::supported()
 193 {
 194         return mSupported;
 195 }
 196
 197 void DatabaseSink::parseConfig()
 198 {
 199         json_object *rootobject;
 200         json_tokener *tokener = json_tokener_new();
 201         enum json_tokener_error err;
 202         do
 203         {
 204                 rootobject = json_tokener_parse_ex(tokener, configuration["properties"].c_str(),configuration["properties"].size());
 205         } while ((err = json_tokener_get_error(tokener)) == json_tokener_continue);
 206         if (err != json_tokener_success)
 207         {
 208                 fprintf(stderr, "Error: %s\n", json_tokener_error_desc(err));
 209         }
 210         if (tokener->char_offset < configuration["properties"].size()) // XXX shouldn't access internal fields
 211         {
 212                 //Should handle the extra data here sometime...
 213         }
 214
 215         json_object *propobject = json_object_object_get(rootobject,"properties");
 216
 217         g_assert(json_object_get_type(propobject) == json_type_array);
 218
 219         array_list *proplist = json_object_get_array(propobject);
 220
 221         for(int i=0; i < array_list_length(proplist); i++)
 222         {
 223                 json_object *idxobj = (json_object*)array_list_get_idx(proplist,i);
 224                 std::string prop = json_object_get_string(idxobj);
 225                 propertiesToSubscribeTo.push_back(prop);
 226
 227                 DebugOut()<<"DatabaseSink logging: "<<prop<<endl;
 228         }
 229
 230         json_object_put(propobject);
 231         json_object_put(rootobject);
 232 }
 233
 234 void DatabaseSink::stopDb()
 235 {
 236         if(!shared)
 237                 return;
 238
 239         DBObject *obj = new DBObject();
 240         obj->quit = true;
 241         shared->queue.append(obj);
 242
 243         g_thread_join(thread);
 244
 245         delete shared;
 246         shared = NULL;
 247 }
 248
 249 void DatabaseSink::startDb()
 250 {
 251         if(playback)
 252         {
 253                 DebugOut(0)<<"ERROR: tried to start logging during playback.  Only logging or playback can be used at one time"<<endl;
 254                 return;
 255         }
 256
 257         if(shared)
 258         {
 259                 DebugOut(0)<<"WARNING: logging already started.  doing nothing."<<endl;
 260                 return;
 261         }
 262
 263         initDb();
 264
 265         thread = g_thread_new("dbthread", cbFunc, shared);
 266 }
 267
 268 void DatabaseSink::startPlayback()
 269 {
 270         if(playback)
 271                 return;
 272
 273         playback = true;
 274
 275         initDb();
 276
 277         /// populate playback queue:
 278
 279         vector<vector<string> > results = shared->db->select("SELECT * FROM "+tablename);
 280
 281         /// we are done with shared.  clean up:
 282         delete shared;
 283         shared = NULL;
 284
 285         if(playbackShared)
 286         {
 287                 delete playbackShared;
 288         }
 289
 290         playbackShared = new PlaybackShared(routingEngine, uuid(), playbackMultiplier);
 291
 292         for(int i=0;i<results.size();i++)
 293         {
 294                 if(results[i].size() < 5)
 295                 {
 296                         throw std::runtime_error("column mismatch in query");
 297                 }
 298
 299                 DBObject* obj = new DBObject();
 300
 301                 obj->key = results[i][0];
 302                 obj->value = results[i][1];
 303                 obj->source = results[i][2];
 304                 obj->time = boost::lexical_cast<double>(results[i][3]);
 305
 306                 /// TODO: figure out why sequence is broken:
 307
 308 //              obj->sequence = boost::lexical_cast<int>(results[i][4]);
 309
 310                 playbackShared->playbackQueue.push_back(obj);
 311         }
 312
 313         g_timeout_add(0,getNextEvent,playbackShared);
 314 }
 315
 316 void DatabaseSink::initDb()
 317 {
 318         if(shared) delete shared;
 319
 320         shared = new Shared;
 321         shared->db->init(databaseName, tablename, tablecreate);
 322 }
 323
 324 void DatabaseSink::setPlayback(bool v)
 325 {
 326         AsyncSetPropertyRequest request;
 327         request.property = DatabasePlaybackProperty;
 328         request.value = new DatabasePlaybackType(v);
 329
 330         setProperty(request);
 331 }
 332
 333 void DatabaseSink::setLogging(bool b)
 334 {
 335         AsyncSetPropertyRequest request;
 336         request.property = DatabaseLoggingProperty;
 337         request.value = new DatabaseLoggingType(b);
 338
 339         setProperty(request);
 340 }
 341
 342 void DatabaseSink::setDatabaseFileName(string filename)
 343 {
 344         databaseName = filename;
 345
 346         initDb();
 347
 348         vector<vector<string> > supportedStr = shared->db->select("SELECT DISTINCT key FROM "+tablename);
 349
 350         for(int i=0; i < supportedStr.size(); i++)
 351         {
 352                 if(!ListPlusPlus<VehicleProperty::Property>(&mSupported).contains(supportedStr[i][0]))
 353                         mSupported.push_back(supportedStr[i][0]);
 354         }
 355
 356         delete shared;
 357         shared = NULL;
 358
 359         routingEngine->setSupported(mSupported, this);
 360 }
 361
 362 void DatabaseSink::propertyChanged(VehicleProperty::Property property, AbstractPropertyType *value, std::string uuid)
 363 {
 364         if(!shared)
 365                 return;
 366
 367         DBObject* obj = new DBObject;
 368         obj->key = property;
 369         obj->value = value->toString();
 370         obj->source = uuid;
 371         obj->time = value->timestamp;
 372         obj->sequence = value->sequence;
 373
 374         shared->queue.append(obj);
 375 }
 376
 377
 378 std::string DatabaseSink::uuid()
 379 {
 380         return "9f88156e-cb92-4472-8775-9c08addf50d3";
 381 }
 382
 383 void DatabaseSink::getPropertyAsync(AsyncPropertyReply *reply)
 384 {
 385         reply->success = false;
 386
 387         if(reply->property == DatabaseFileProperty)
 388         {
 389                 DatabaseFilePropertyType temp(databaseName);
 390                 reply->value = &temp;
 391
 392                 reply->success = true;
 393                 reply->completed(reply);
 394
 395                 return;
 396         }
 397         else if(reply->property == DatabaseLoggingProperty)
 398         {
 399                 BasicPropertyType<bool> temp = shared;
 400
 401                 reply->value = &temp;
 402                 reply->success = true;
 403                 reply->completed(reply);
 404
 405                 return;
 406         }
 407
 408         else if(reply->property == DatabasePlaybackProperty)
 409         {
 410                 BasicPropertyType<bool> temp = playback;
 411                 reply->value = &temp;
 412                 reply->success = true;
 413                 reply->completed(reply);
 414
 415                 return;
 416         }
 417
 418         reply->completed(reply);
 419 }
 420
 421 void DatabaseSink::getRangePropertyAsync(AsyncRangePropertyReply *reply)
 422 {
 423         BaseDB * db = new BaseDB();
 424         db->init(databaseName, tablename, tablecreate);
 425
 426         ostringstream query;
 427         query.precision(15);
 428
 429         query<<"SELECT * from "<<tablename<<" WHERE ";
 430
 431         if(reply->timeBegin && reply->timeEnd)
 432         {
 433                 query<<" time BETWEEN "<<reply->timeBegin<<" AND "<<reply->timeEnd;
 434         }
 435
 436         if(reply->sequenceBegin >= 0 && reply->sequenceEnd >=0)
 437         {
 438                 query<<" AND sequence BETWEEN "<<reply->sequenceBegin<<" AND "<<reply->sequenceEnd;
 439         }
 440
 441         std::vector<std::vector<string>> data = db->select(query.str());
 442
 443         std::list<AbstractPropertyType*> cleanup;
 444
 445         for(auto i=0;i<data.size();i++)
 446         {
 447                 if(data[i].size() != 5)
 448                         continue;
 449
 450                 DBObject dbobj;
 451                 dbobj.key = data[i][0];
 452                 dbobj.value = data[i][1];
 453                 dbobj.source = data[i][2];
 454                 dbobj.time = boost::lexical_cast<double>(data[i][3]);
 455                 dbobj.sequence = boost::lexical_cast<double>(data[i][4]);
 456
 457                 AbstractPropertyType* property = VehicleProperty::getPropertyTypeForPropertyNameValue(dbobj.key, dbobj.value);
 458                 if(property)
 459                 {
 460                         property->timestamp = dbobj.time;
 461                         property->sequence = dbobj.sequence;
 462
 463                         reply->values.push_back(property);
 464                         cleanup.push_back(property);
 465                 }
 466         }
 467
 468         reply->success = true;
 469         reply->completed(reply);
 470
 471         delete db;
 472 }
 473
 474 AsyncPropertyReply *DatabaseSink::setProperty(AsyncSetPropertyRequest request)
 475 {
 476         AsyncPropertyReply* reply = new AsyncPropertyReply(request);
 477         reply->success = false;
 478
 479         if(request.property == DatabaseLoggingProperty)
 480         {
 481                 if(request.value->value<bool>())
 482                 {
 483                         setPlayback(false);
 484                         startDb();
 485                         reply->success = true;
 486                         BasicPropertyType<bool> temp(true);
 487                         routingEngine->updateProperty(DatabaseLoggingProperty,&temp,uuid());
 488                 }
 489                 else
 490                 {
 491                         stopDb();
 492                         reply->success = true;
 493                         BasicPropertyType<bool> temp(false);
 494                         routingEngine->updateProperty(DatabaseLoggingProperty,&temp,uuid());
 495                 }
 496         }
 497
 498         else if(request.property == DatabaseFileProperty)
 499         {
 500                 std::string fname = request.value->toString();
 501
 502                 databaseName = fname;
 503
 504                 StringPropertyType temp(databaseName);
 505
 506                 routingEngine->updateProperty(DatabaseFileProperty,&temp,uuid());
 507
 508                 reply->success = true;
 509         }
 510         else if( request.property == DatabasePlaybackProperty)
 511         {
 512                 if(request.value->value<bool>())
 513                 {
 514                         setLogging(false);
 515                         startPlayback();
 516
 517                         BasicPropertyType<bool> temp(playback);
 518
 519                         routingEngine->updateProperty(DatabasePlaybackProperty,&temp,uuid());
 520                 }
 521                 else
 522                 {
 523                         if(playbackShared)
 524                                 playbackShared->stop = true;
 525
 526                         playback = false;
 527
 528                         BasicPropertyType<bool> temp(playback);
 529
 530                         routingEngine->updateProperty(DatabasePlaybackProperty, &temp, uuid());
 531                 }
 532
 533                 reply->success = true;
 534         }
 535
 536         return reply;
 537 }
 538
 539 void DatabaseSink::subscribeToPropertyChanges(VehicleProperty::Property )
 540 {
 541
 542 }
 543
 544 void DatabaseSink::unsubscribeToPropertyChanges(VehicleProperty::Property )
 545 {
 546 }