plugins/database/databasesink.cpp

   1 #include "databasesink.h"
   2 #include "abstractroutingengine.h"
   3 #include "listplusplus.h"
   4
   5 int bufferLength = 100;
   6
   7 extern "C" AbstractSinkManager * create(AbstractRoutingEngine* routingengine, map<string, string> config)
   8 {
   9         return new DatabaseSinkManager(routingengine, config);
  10 }
  11
  12 void * cbFunc(gpointer data)
  13 {
  14         Shared *shared = static_cast<Shared*>(data);
  15
  16         if(!shared)
  17         {
  18                 throw std::runtime_error("Could not cast shared object.");
  19         }
  20
  21         vector<DictionaryList<string> > insertList;
  22
  23         while(1)
  24         {
  25                 DBObject* obj = shared->queue.pop();
  26
  27                 if( obj->quit )
  28                 {
  29                         delete obj;
  30                         break;
  31                 }
  32
  33                 DictionaryList<string> dict;
  34
  35                 NameValuePair<string> one("key", obj->key);
  36                 NameValuePair<string> two("value", obj->value);
  37                 NameValuePair<string> three("source", obj->source);
  38                 NameValuePair<string> four("time", boost::lexical_cast<string>(obj->time));
  39                 NameValuePair<string> five("sequence", boost::lexical_cast<string>(obj->sequence));
  40
  41                 dict.push_back(one);
  42                 dict.push_back(two);
  43                 dict.push_back(three);
  44                 dict.push_back(four);
  45                 dict.push_back(five);
  46
  47                 insertList.push_back(dict);
  48
  49                 if(insertList.size() > bufferLength)
  50                 {
  51                         shared->db->exec("BEGIN IMMEDIATE TRANSACTION");
  52                         for(int i=0; i< insertList.size(); i++)
  53                         {
  54                                 DictionaryList<string> d = insertList[i];
  55                                 shared->db->insert(d);
  56                         }
  57                         shared->db->exec("END TRANSACTION");
  58                         insertList.clear();
  59                 }
  60                 delete obj;
  61         }
  62
  63         /// final flush of whatever is still in the queue:
  64
  65         shared->db->exec("BEGIN IMMEDIATE TRANSACTION");
  66         for(int i=0; i< insertList.size(); i++)
  67         {
  68                 DictionaryList<string> d = insertList[i];
  69                 shared->db->insert(d);
  70         }
  71         shared->db->exec("END TRANSACTION");
  72
  73         return NULL;
  74 }
  75
  76 int getNextEvent(gpointer data)
  77 {
  78         PlaybackShared* pbshared = static_cast<PlaybackShared*>(data);
  79
  80         if(!pbshared)
  81                 throw std::runtime_error("failed to cast PlaybackShared object");
  82
  83         if(pbshared->stop)
  84                 return 0;
  85
  86         auto itr = pbshared->playbackQueue.begin();
  87
  88         if(itr == pbshared->playbackQueue.end())
  89         {
  90                 return 0;
  91         }
  92
  93         DBObject* obj = *itr;
  94
  95         AbstractPropertyType* value = VehicleProperty::getPropertyTypeForPropertyNameValue(obj->key,obj->value);
  96
  97         if(value)
  98         {
  99                 pbshared->routingEngine->updateProperty(obj->key, value, pbshared->uuid);
 100                 value->timestamp = obj->time;
 101                 //value->sequence = obj->sequence;
 102         }
 103
 104         if(++itr != pbshared->playbackQueue.end())
 105         {
 106                 DBObject *o2 = *itr;
 107                 double t = o2->time - obj->time;
 108
 109                 if(t > 0)
 110                         g_timeout_add((t*1000) / pbshared->playBackMultiplier, getNextEvent, pbshared);
 111                 else
 112                         g_timeout_add(1, getNextEvent, pbshared);
 113         }
 114
 115         pbshared->playbackQueue.remove(obj);
 116         DebugOut()<<"playback Queue size: "<<pbshared->playbackQueue.size()<<endl;
 117         delete obj;
 118
 119         return 0;
 120 }
 121
 122 DatabaseSink::DatabaseSink(AbstractRoutingEngine *engine, map<std::string, std::string> config)
 123         :AbstractSource(engine,config),thread(NULL),shared(NULL),playback(false),playbackShared(NULL), playbackMultiplier(1)
 124 {
 125         databaseName = "storage";
 126         tablename = "data";
 127         tablecreate = "CREATE TABLE IF NOT EXISTS data (key TEXT, value BLOB, source TEXT, time REAL, sequence REAL)";
 128
 129         if(config.find("databaseFile") != config.end())
 130         {
 131                 setDatabaseFileName(config["databaseFile"]);
 132         }
 133
 134         if(config.find("bufferLength") != config.end())
 135         {
 136                 bufferLength = atoi(config["bufferLength"].c_str());
 137         }
 138
 139         if(config.find("properties") != config.end())
 140         {
 141                 parseConfig();
 142         }
 143
 144         for(auto itr=propertiesToSubscribeTo.begin();itr!=propertiesToSubscribeTo.end();itr++)
 145         {
 146                 engine->subscribeToProperty(*itr,this);
 147         }
 148
 149         mSupported.push_back(DatabaseFile);
 150         mSupported.push_back(DatabaseLogging);
 151         mSupported.push_back(DatabasePlayback);
 152
 153         routingEngine->setSupported(supported(), this);
 154
 155         if(config.find("startOnLoad")!= config.end())
 156         {
 157                 setLogging(true);
 158         }
 159
 160         if(config.find("playbackMultiplier")!= config.end())
 161         {
 162                 playbackMultiplier = boost::lexical_cast<uint>(config["playbackMultiplier"]);
 163         }
 164
 165         if(config.find("playbackOnLoad")!= config.end())
 166         {
 167                 setPlayback(true);
 168         }
 169
 170
 171 }
 172
 173 DatabaseSink::~DatabaseSink()
 174 {
 175         if(shared)
 176         {
 177                 DBObject* obj = new DBObject();
 178                 obj->quit = true;
 179
 180                 shared->queue.append(obj);
 181
 182                 g_thread_join(thread);
 183                 g_thread_unref(thread);
 184                 delete shared;
 185         }
 186
 187         if(playbackShared)
 188         {
 189                 delete playbackShared;
 190         }
 191 }
 192
 193
 194 void DatabaseSink::supportedChanged(PropertyList supportedProperties)
 195 {
 196
 197 }
 198
 199 PropertyList DatabaseSink::supported()
 200 {
 201         return mSupported;
 202 }
 203
 204 void DatabaseSink::parseConfig()
 205 {
 206         json_object *rootobject;
 207         json_tokener *tokener = json_tokener_new();
 208         enum json_tokener_error err;
 209         do
 210         {
 211                 rootobject = json_tokener_parse_ex(tokener, configuration["properties"].c_str(),configuration["properties"].size());
 212         } while ((err = json_tokener_get_error(tokener)) == json_tokener_continue);
 213         if (err != json_tokener_success)
 214         {
 215                 fprintf(stderr, "Error: %s\n", json_tokener_error_desc(err));
 216         }
 217         if (tokener->char_offset < configuration["properties"].size()) // XXX shouldn't access internal fields
 218         {
 219                 //Should handle the extra data here sometime...
 220         }
 221
 222         json_object *propobject = json_object_object_get(rootobject,"properties");
 223
 224         g_assert(json_object_get_type(propobject) == json_type_array);
 225
 226         array_list *proplist = json_object_get_array(propobject);
 227
 228         for(int i=0; i < array_list_length(proplist); i++)
 229         {
 230                 json_object *idxobj = (json_object*)array_list_get_idx(proplist,i);
 231                 std::string prop = json_object_get_string(idxobj);
 232                 propertiesToSubscribeTo.push_back(prop);
 233
 234                 DebugOut()<<"DatabaseSink logging: "<<prop<<endl;
 235         }
 236
 237         json_object_put(propobject);
 238         json_object_put(rootobject);
 239 }
 240
 241 void DatabaseSink::stopDb()
 242 {
 243         if(!shared)
 244                 return;
 245
 246         DBObject *obj = new DBObject();
 247         obj->quit = true;
 248         shared->queue.append(obj);
 249
 250         g_thread_join(thread);
 251
 252         delete shared;
 253         shared = NULL;
 254 }
 255
 256 void DatabaseSink::startDb()
 257 {
 258         if(playback)
 259         {
 260                 DebugOut(0)<<"ERROR: tried to start logging during playback.  Only logging or playback can be used at one time"<<endl;
 261                 return;
 262         }
 263
 264         if(shared)
 265         {
 266                 DebugOut(0)<<"WARNING: logging already started.  doing nothing."<<endl;
 267                 return;
 268         }
 269
 270         initDb();
 271
 272         thread = g_thread_new("dbthread", cbFunc, shared);
 273 }
 274
 275 void DatabaseSink::startPlayback()
 276 {
 277         if(playback)
 278                 return;
 279
 280         playback = true;
 281
 282         initDb();
 283
 284         /// populate playback queue:
 285
 286         vector<vector<string> > results = shared->db->select("SELECT * FROM "+tablename);
 287
 288         /// we are done with shared.  clean up:
 289         delete shared;
 290         shared = NULL;
 291
 292         if(playbackShared)
 293         {
 294                 delete playbackShared;
 295         }
 296
 297         playbackShared = new PlaybackShared(routingEngine, uuid(), playbackMultiplier);
 298
 299         for(int i=0;i<results.size();i++)
 300         {
 301                 if(results[i].size() < 5)
 302                 {
 303                         throw std::runtime_error("column mismatch in query");
 304                 }
 305
 306                 DBObject* obj = new DBObject();
 307
 308                 obj->key = results[i][0];
 309                 obj->value = results[i][1];
 310                 obj->source = results[i][2];
 311                 obj->time = boost::lexical_cast<double>(results[i][3]);
 312
 313                 /// TODO: figure out why sequence is broken:
 314
 315 //              obj->sequence = boost::lexical_cast<int>(results[i][4]);
 316
 317                 playbackShared->playbackQueue.push_back(obj);
 318         }
 319
 320         g_timeout_add(0,getNextEvent,playbackShared);
 321 }
 322
 323 void DatabaseSink::initDb()
 324 {
 325         if(shared) delete shared;
 326
 327         shared = new Shared;
 328         shared->db->init(databaseName, tablename, tablecreate);
 329 }
 330
 331 void DatabaseSink::setPlayback(bool v)
 332 {
 333         AsyncSetPropertyRequest request;
 334         request.property = DatabasePlayback;
 335         request.value = new DatabasePlaybackType(v);
 336
 337         setProperty(request);
 338 }
 339
 340 void DatabaseSink::setLogging(bool b)
 341 {
 342         AsyncSetPropertyRequest request;
 343         request.property = DatabaseLogging;
 344         request.value = new DatabaseLoggingType(b);
 345
 346         setProperty(request);
 347 }
 348
 349 void DatabaseSink::setDatabaseFileName(string filename)
 350 {
 351         databaseName = filename;
 352
 353         initDb();
 354
 355         vector<vector<string> > supportedStr = shared->db->select("SELECT DISTINCT key FROM "+tablename);
 356
 357         for(int i=0; i < supportedStr.size(); i++)
 358         {
 359                 if(!ListPlusPlus<VehicleProperty::Property>(&mSupported).contains(supportedStr[i][0]))
 360                         mSupported.push_back(supportedStr[i][0]);
 361         }
 362
 363         delete shared;
 364         shared = NULL;
 365
 366         routingEngine->setSupported(mSupported, this);
 367 }
 368
 369 void DatabaseSink::propertyChanged(VehicleProperty::Property property, AbstractPropertyType *value, std::string uuid)
 370 {
 371         if(!shared)
 372                 return;
 373
 374         if(!ListPlusPlus<VehicleProperty::Property>(&mSupported).contains(property))
 375         {
 376                 mSupported.push_back(property);
 377                 routingEngine->setSupported(mSupported, this);
 378         }
 379
 380         DBObject* obj = new DBObject;
 381         obj->key = property;
 382         obj->value = value->toString();
 383         obj->source = uuid;
 384         obj->time = value->timestamp;
 385         obj->sequence = value->sequence;
 386
 387         shared->queue.append(obj);
 388 }
 389
 390
 391 std::string DatabaseSink::uuid()
 392 {
 393         return "9f88156e-cb92-4472-8775-9c08addf50d3";
 394 }
 395
 396 void DatabaseSink::getPropertyAsync(AsyncPropertyReply *reply)
 397 {
 398         reply->success = false;
 399
 400         if(reply->property == DatabaseFile)
 401         {
 402                 DatabaseFileType temp(databaseName);
 403                 reply->value = &temp;
 404
 405                 reply->success = true;
 406                 reply->completed(reply);
 407
 408                 return;
 409         }
 410         else if(reply->property == DatabaseLogging)
 411         {
 412                 DatabaseLoggingType temp = shared;
 413
 414                 reply->value = &temp;
 415                 reply->success = true;
 416                 reply->completed(reply);
 417
 418                 return;
 419         }
 420
 421         else if(reply->property == DatabasePlayback)
 422         {
 423                 DatabasePlaybackType temp = playback;
 424                 reply->value = &temp;
 425                 reply->success = true;
 426                 reply->completed(reply);
 427
 428                 return;
 429         }
 430
 431         reply->completed(reply);
 432 }
 433
 434 void DatabaseSink::getRangePropertyAsync(AsyncRangePropertyReply *reply)
 435 {
 436         BaseDB * db = new BaseDB();
 437         db->init(databaseName, tablename, tablecreate);
 438
 439         ostringstream query;
 440         query.precision(15);
 441
 442         query<<"SELECT * from "<<tablename<<" WHERE key='"<<reply->property<<"' AND";
 443
 444         if(reply->timeBegin && reply->timeEnd)
 445         {
 446                 query<<" time BETWEEN "<<reply->timeBegin<<" AND "<<reply->timeEnd;
 447         }
 448
 449         if(reply->sequenceBegin >= 0 && reply->sequenceEnd >=0)
 450         {
 451                 query<<" AND sequence BETWEEN "<<reply->sequenceBegin<<" AND "<<reply->sequenceEnd;
 452         }
 453
 454         std::vector<std::vector<string>> data = db->select(query.str());
 455
 456         std::list<AbstractPropertyType*> cleanup;
 457
 458         for(auto i=0;i<data.size();i++)
 459         {
 460                 if(data[i].size() != 5)
 461                         continue;
 462
 463                 DBObject dbobj;
 464                 dbobj.key = data[i][0];
 465                 dbobj.value = data[i][1];
 466                 dbobj.source = data[i][2];
 467                 dbobj.time = boost::lexical_cast<double>(data[i][3]);
 468                 dbobj.sequence = boost::lexical_cast<double>(data[i][4]);
 469
 470                 AbstractPropertyType* property = VehicleProperty::getPropertyTypeForPropertyNameValue(dbobj.key, dbobj.value);
 471                 if(property)
 472                 {
 473                         property->timestamp = dbobj.time;
 474                         property->sequence = dbobj.sequence;
 475
 476                         reply->values.push_back(property);
 477                         cleanup.push_back(property);
 478                 }
 479         }
 480
 481         reply->success = true;
 482         reply->completed(reply);
 483
 484         delete db;
 485 }
 486
 487 AsyncPropertyReply *DatabaseSink::setProperty(AsyncSetPropertyRequest request)
 488 {
 489         AsyncPropertyReply* reply = new AsyncPropertyReply(request);
 490         reply->success = false;
 491
 492         if(request.property == DatabaseLogging)
 493         {
 494                 if(request.value->value<bool>())
 495                 {
 496                         setPlayback(false);
 497                         startDb();
 498                         reply->success = true;
 499                         DatabaseLoggingType temp(true);
 500                         routingEngine->updateProperty(DatabaseLogging,&temp,uuid());
 501                 }
 502                 else
 503                 {
 504                         stopDb();
 505                         reply->success = true;
 506                         DatabaseLoggingType temp(false);
 507                         routingEngine->updateProperty(DatabaseLogging,&temp,uuid());
 508                 }
 509         }
 510
 511         else if(request.property == DatabaseFile)
 512         {
 513                 std::string fname = request.value->toString();
 514
 515                 databaseName = fname;
 516
 517                 DatabaseFileType temp(databaseName);
 518
 519                 routingEngine->updateProperty(DatabaseFile,&temp,uuid());
 520
 521                 reply->success = true;
 522         }
 523         else if( request.property == DatabasePlayback)
 524         {
 525                 if(request.value->value<bool>())
 526                 {
 527                         setLogging(false);
 528                         startPlayback();
 529
 530                         DatabasePlaybackType temp(playback);
 531
 532                         routingEngine->updateProperty(DatabasePlayback,&temp,uuid());
 533                 }
 534                 else
 535                 {
 536                         if(playbackShared)
 537                                 playbackShared->stop = true;
 538
 539                         playback = false;
 540
 541                         DatabasePlaybackType temp(playback);
 542
 543                         routingEngine->updateProperty(DatabasePlayback, &temp, uuid());
 544                 }
 545
 546                 reply->success = true;
 547         }
 548
 549         return reply;
 550 }
 551
 552 void DatabaseSink::subscribeToPropertyChanges(VehicleProperty::Property )
 553 {
 554
 555 }
 556
 557 void DatabaseSink::unsubscribeToPropertyChanges(VehicleProperty::Property )
 558 {
 559 }