plugins/database/databasesink.cpp

   1 #include "databasesink.h"
   2 #include "abstractroutingengine.h"
   3 #include "listplusplus.h"
   4 #include "superptr.hpp"
   5 #include "uuidhelper.h"
   6 #include "ambplugin.h"
   7
   8 #include <thread>
   9
  10 int bufferLength = 100;
  11 int timeout=1000;
  12
  13 extern "C" AbstractSource * create(AbstractRoutingEngine* routingengine, map<string, string> config)
  14 {
  15         auto plugin = new AmbPlugin<DatabaseSink>(routingengine, config);
  16         plugin->init();
  17
  18         return plugin;
  19 }
  20
  21 void * cbFunc(Shared* shared)
  22 {
  23         if(!shared)
  24         {
  25                 throw std::runtime_error("Could not cast shared object.");
  26         }
  27
  28         ///new tripID:
  29         shared->tripId = amb::createUuid();
  30
  31         vector<DictionaryList<string> > insertList;
  32
  33         while(1)
  34         {
  35                 usleep(timeout*1000);
  36
  37                 DBObject obj = shared->queue.pop();
  38
  39                 if( obj.quit )
  40                 {
  41                         break;
  42                 }
  43
  44                 DictionaryList<string> dict;
  45
  46                 NameValuePair<string> one("key", obj.key);
  47                 NameValuePair<string> two("value", obj.value);
  48                 NameValuePair<string> three("source", obj.source);
  49                 NameValuePair<string> zone("zone", boost::lexical_cast<string>(obj.zone));
  50                 NameValuePair<string> four("time", boost::lexical_cast<string>(obj.time));
  51                 NameValuePair<string> five("sequence", boost::lexical_cast<string>(obj.sequence));
  52                 NameValuePair<string> six("tripId", boost::lexical_cast<string>(shared->tripId));
  53
  54                 dict.push_back(one);
  55                 dict.push_back(two);
  56                 dict.push_back(three);
  57                 dict.push_back(zone);
  58                 dict.push_back(four);
  59                 dict.push_back(five);
  60                 dict.push_back(six);
  61
  62                 insertList.push_back(dict);
  63
  64                 if(insertList.size() > bufferLength)
  65                 {
  66                         shared->db->exec("BEGIN IMMEDIATE TRANSACTION");
  67                         for(int i=0; i< insertList.size(); i++)
  68                         {
  69                                 DictionaryList<string> d = insertList[i];
  70                                 shared->db->insert(d);
  71                         }
  72                         shared->db->exec("END TRANSACTION");
  73                         insertList.clear();
  74                 }
  75                 //delete obj;
  76         }
  77
  78         /// final flush of whatever is still in the queue:
  79
  80         shared->db->exec("BEGIN IMMEDIATE TRANSACTION");
  81         for(int i=0; i< insertList.size(); i++)
  82         {
  83                 DictionaryList<string> d = insertList[i];
  84                 shared->db->insert(d);
  85         }
  86         shared->db->exec("END TRANSACTION");
  87
  88         return NULL;
  89 }
  90
  91 int getNextEvent(gpointer data)
  92 {
  93         PlaybackShared* pbshared = static_cast<PlaybackShared*>(data);
  94
  95         if(!pbshared)
  96                 throw std::runtime_error("failed to cast PlaybackShared object");
  97
  98         if(pbshared->stop)
  99                 return 0;
 100
 101         auto itr = pbshared->playbackQueue.begin();
 102
 103         if(itr == pbshared->playbackQueue.end())
 104         {
 105                 return 0;
 106         }
 107
 108         DBObject obj = *itr;
 109
 110         auto value = amb::make_unique(VehicleProperty::getPropertyTypeForPropertyNameValue(obj.key, obj.value));
 111
 112         if(value)
 113         {
 114                 value->priority = AbstractPropertyType::Instant;
 115                 value->timestamp = obj.time;
 116                 value->sequence = obj.sequence;
 117                 value->sourceUuid = obj.source;
 118                 value->zone = obj.zone;
 119                 pbshared->routingEngine->updateProperty(value.get(), pbshared->uuid);
 120         }
 121
 122         if(++itr != pbshared->playbackQueue.end())
 123         {
 124                 DBObject o2 = *itr;
 125                 double t = o2.time - obj.time;
 126
 127                 if(t > 0)
 128                         g_timeout_add((t*1000) / pbshared->playBackMultiplier, getNextEvent, pbshared);
 129                 else
 130                         g_timeout_add(1, getNextEvent, pbshared);
 131         }
 132
 133         pbshared->playbackQueue.remove(obj);
 134         DebugOut()<<"playback Queue size: "<<pbshared->playbackQueue.size()<<endl;
 135
 136         return 0;
 137 }
 138
 139 DatabaseSink::DatabaseSink(AbstractRoutingEngine *engine, map<std::string, std::string> config, AbstractSource &parent)
 140         :AmbPluginImpl(engine, config, parent), shared(nullptr), playback(false), playbackShared(nullptr), playbackMultiplier(1)
 141 {
 142         databaseName = "storage";
 143         tablename = "data";
 144         tablecreate = "CREATE TABLE IF NOT EXISTS data (key TEXT, value BLOB, source TEXT, zone REAL, time REAL, sequence REAL, tripId TEXT)";
 145
 146         if(config.find("databaseFile") != config.end())
 147         {
 148                 setDatabaseFileName(config["databaseFile"]);
 149         }
 150
 151         if(config.find("bufferLength") != config.end())
 152         {
 153                 bufferLength = atoi(config["bufferLength"].c_str());
 154         }
 155
 156         if(config.find("frequency") != config.end())
 157         {
 158                 try
 159                 {
 160                         int t = boost::lexical_cast<int>(config["frequency"]);
 161                         timeout = 1000 / t;
 162                 }catch(...)
 163                 {
 164                         DebugOut(DebugOut::Error)<<"Failed to parse frequency: Invalid value "<<config["frequency"]<<endl;
 165                 }
 166
 167
 168         }
 169
 170         if(config.find("properties") != config.end())
 171         {
 172                 parseConfig();
 173         }
 174
 175         for(auto itr : propertiesToSubscribeTo)
 176         {
 177                 engine->subscribeToProperty(itr, &parent);
 178         }
 179
 180         addPropertySupport(Zone::None, [](){return new DatabaseFileType("storage");});
 181         addPropertySupport(Zone::None, [](){return new DatabasePlaybackType(false);});
 182         addPropertySupport(Zone::None, [](){return new DatabaseLoggingType(false);});
 183
 184         routingEngine->updateSupported(supported(), PropertyList(), &parent);
 185
 186         if(config.find("startOnLoad")!= config.end())
 187         {
 188                 setLogging(config["startOnLoad"] == "true");
 189         }
 190
 191         if(config.find("playbackMultiplier")!= config.end())
 192         {
 193                 playbackMultiplier = boost::lexical_cast<uint>(config["playbackMultiplier"]);
 194         }
 195
 196         if(config.find("playbackOnLoad")!= config.end())
 197         {
 198                 setPlayback(config["playbackOnLoad"] == "true");
 199         }
 200
 201
 202 }
 203
 204 DatabaseSink::~DatabaseSink()
 205 {
 206         if(shared)
 207         {
 208                 stopDb();
 209         }
 210
 211         if(playbackShared)
 212         {
 213                 delete playbackShared;
 214         }
 215 }
 216
 217
 218 void DatabaseSink::supportedChanged(const PropertyList &supportedProperties)
 219 {
 220
 221 }
 222
 223 void DatabaseSink::parseConfig()
 224 {
 225         json_object *rootobject;
 226         json_tokener *tokener = json_tokener_new();
 227         enum json_tokener_error err;
 228         do
 229         {
 230                 rootobject = json_tokener_parse_ex(tokener, configuration["properties"].c_str(),configuration["properties"].size());
 231         } while ((err = json_tokener_get_error(tokener)) == json_tokener_continue);
 232         if (err != json_tokener_success)
 233         {
 234                 fprintf(stderr, "Error: %s\n", json_tokener_error_desc(err));
 235         }
 236         if (tokener->char_offset < configuration["properties"].size()) // XXX shouldn't access internal fields
 237         {
 238                 //Should handle the extra data here sometime...
 239         }
 240
 241         json_object *propobject = json_object_object_get(rootobject,"properties");
 242
 243         g_assert(json_object_get_type(propobject) == json_type_array);
 244
 245         array_list *proplist = json_object_get_array(propobject);
 246
 247         for(int i=0; i < array_list_length(proplist); i++)
 248         {
 249                 json_object *idxobj = (json_object*)array_list_get_idx(proplist,i);
 250                 std::string prop = json_object_get_string(idxobj);
 251                 propertiesToSubscribeTo.push_back(prop);
 252
 253                 DebugOut()<<"DatabaseSink logging: "<<prop<<endl;
 254         }
 255
 256         //json_object_put(propobject);
 257         json_object_put(rootobject);
 258 }
 259
 260 void DatabaseSink::stopDb()
 261 {
 262         if(!shared)
 263                 return;
 264
 265         DBObject obj;
 266         obj.quit = true;
 267         shared->queue.append(obj);
 268
 269         thread.join();
 270
 271         delete shared;
 272         shared = NULL;
 273 }
 274
 275 void DatabaseSink::startDb()
 276 {
 277         if(playback.basicValue())
 278         {
 279                 DebugOut(0)<<"ERROR: tried to start logging during playback.  Only logging or playback can be used at one time"<<endl;
 280                 return;
 281         }
 282
 283         if(shared)
 284         {
 285                 DebugOut(0)<<"WARNING: logging already started.  doing nothing."<<endl;
 286                 return;
 287         }
 288
 289         initDb();
 290
 291         thread = std::thread(cbFunc, shared);
 292 }
 293
 294 void DatabaseSink::startPlayback()
 295 {
 296         if(playback.basicValue())
 297                 return;
 298
 299         playback = true;
 300
 301         initDb();
 302
 303         /// populate playback queue:
 304
 305         vector<vector<string> > results = shared->db->select("SELECT * FROM "+tablename);
 306
 307         /// we are done with shared.  clean up:
 308         delete shared;
 309         shared = NULL;
 310
 311         if(playbackShared)
 312         {
 313                 delete playbackShared;
 314         }
 315
 316         playbackShared = new PlaybackShared(routingEngine, uuid(), playbackMultiplier);
 317
 318         for(int i=0;i<results.size();i++)
 319         {
 320                 if(results[i].size() < 5)
 321                 {
 322                         throw std::runtime_error("column mismatch in query");
 323                 }
 324
 325                 DBObject obj;
 326
 327                 obj.key = results[i][0];
 328                 obj.value = results[i][1];
 329                 obj.source = results[i][2];
 330                 obj.zone = boost::lexical_cast<double>(results[i][3]);
 331                 obj.time = boost::lexical_cast<double>(results[i][4]);
 332                 obj.sequence = boost::lexical_cast<double>(results[i][5]);
 333
 334                 playbackShared->playbackQueue.push_back(obj);
 335         }
 336
 337         g_timeout_add(0, getNextEvent, playbackShared);
 338 }
 339
 340 void DatabaseSink::initDb()
 341 {
 342         if(shared) delete shared;
 343
 344         shared = new Shared;
 345         shared->db->init(databaseName.value<std::string>(), tablename, tablecreate);
 346 }
 347
 348 void DatabaseSink::setPlayback(bool v)
 349 {
 350         AsyncSetPropertyRequest request;
 351         request.property = DatabasePlayback;
 352         request.value = new DatabasePlaybackType(v);
 353
 354         setProperty(request);
 355 }
 356
 357 void DatabaseSink::setLogging(bool b)
 358 {
 359         databaseLogging = b;
 360         AsyncSetPropertyRequest request;
 361         request.property = DatabaseLogging;
 362         request.value = &databaseLogging;
 363
 364         setProperty(request);
 365 }
 366
 367 void DatabaseSink::setDatabaseFileName(string filename)
 368 {
 369         databaseName = filename;
 370
 371         initDb();
 372
 373         vector<vector<string> > supportedStr = shared->db->select("SELECT DISTINCT key FROM "+tablename);
 374
 375         for(int i=0; i < supportedStr.size(); i++)
 376         {
 377                 if(!contains(supported(), supportedStr[i][0]))
 378                 {
 379                         std::string name = supportedStr[i][0];
 380                         Zone::Type zone = boost::lexical_cast<int, std::string>(supportedStr[i][3]);
 381                         addPropertySupport(zone, [name]() { return VehicleProperty::getPropertyTypeForPropertyNameValue(name); });
 382                 }
 383         }
 384
 385         delete shared;
 386         shared = NULL;
 387
 388         routingEngine->updateSupported(mSupported, PropertyList(), &source);
 389 }
 390
 391 void DatabaseSink::propertyChanged(AbstractPropertyType *value)
 392 {
 393         VehicleProperty::Property property = value->name;
 394
 395         if(!shared)
 396                 return;
 397
 398         if(!contains(supported(), property))
 399         {
 400                 addPropertySupport(value->zone, [property]() { return VehicleProperty::getPropertyTypeForPropertyNameValue(property);});
 401                 routingEngine->updateSupported(mSupported, PropertyList(), &source);
 402         }
 403
 404         DBObject obj;
 405         obj.key = property;
 406         obj.value = value->toString();
 407         obj.source = value->sourceUuid;
 408         obj.time = value->timestamp;
 409         obj.sequence = value->sequence;
 410         obj.zone = value->zone;
 411
 412         shared->queue.append(obj);
 413 }
 414
 415
 416 const std::string DatabaseSink::uuid() const
 417 {
 418         return "9f88156e-cb92-4472-8775-9c08addf50d3";
 419 }
 420
 421 void DatabaseSink::getPropertyAsync(AsyncPropertyReply *reply)
 422 {
 423         reply->success = false;
 424
 425         if(reply->property == DatabaseFile)
 426         {
 427                 DatabaseFileType temp(databaseName);
 428                 reply->value = &temp;
 429
 430                 reply->success = true;
 431                 reply->completed(reply);
 432
 433                 return;
 434         }
 435         else if(reply->property == DatabaseLogging)
 436         {
 437                 databaseLogging = shared != nullptr;
 438
 439                 reply->value = &databaseLogging;
 440                 reply->success = true;
 441                 reply->completed(reply);
 442
 443                 return;
 444         }
 445
 446         else if(reply->property == DatabasePlayback)
 447         {
 448                 DatabasePlaybackType temp = playback;
 449                 reply->value = &temp;
 450                 reply->success = true;
 451                 reply->completed(reply);
 452
 453                 return;
 454         }
 455
 456         reply->completed(reply);
 457 }
 458
 459 void DatabaseSink::getRangePropertyAsync(AsyncRangePropertyReply *reply)
 460 {
 461         BaseDB * db = new BaseDB();
 462         db->init(databaseName.value<std::string>(), tablename, tablecreate);
 463
 464         ostringstream query;
 465         query.precision(15);
 466
 467         query<<"SELECT * from "<<tablename<<" WHERE (";
 468
 469         for(auto itr = reply->properties.begin(); itr != reply->properties.end(); itr++)
 470         {
 471                 if(itr != reply->properties.begin())
 472                         query<<" OR ";
 473
 474                 query<<"key='"<<(*itr)<<"'";
 475         }
 476
 477         query<<") AND";
 478
 479         if(reply->timeBegin && reply->timeEnd)
 480         {
 481                 query<<" time BETWEEN "<<reply->timeBegin<<" AND "<<reply->timeEnd;
 482         }
 483
 484         if(reply->sequenceBegin >= 0 && reply->sequenceEnd >=0)
 485         {
 486                 query<<" AND sequence BETWEEN "<<reply->sequenceBegin<<" AND "<<reply->sequenceEnd;
 487         }
 488
 489         if(reply->sourceUuid != "")
 490                 query<<" AND source='"<<reply->sourceUuid<<"'";
 491
 492         query<<" AND zone="<<reply->zone;
 493
 494         std::vector<std::vector<string>> data = db->select(query.str());
 495
 496         DebugOut()<<"Dataset size "<<data.size()<<endl;
 497
 498         for(auto i=0;i<data.size();i++)
 499         {
 500                 if(data[i].size() != 6)
 501                         continue;
 502
 503                 DBObject dbobj;
 504                 dbobj.key = data[i][0];
 505                 dbobj.value = data[i][1];
 506                 dbobj.source = data[i][2];
 507                 dbobj.zone = boost::lexical_cast<double>(data[i][3]);
 508                 dbobj.time = boost::lexical_cast<double>(data[i][4]);
 509                 dbobj.sequence = boost::lexical_cast<double>(data[i][5]);
 510
 511                 AbstractPropertyType* property = VehicleProperty::getPropertyTypeForPropertyNameValue(dbobj.key, dbobj.value);
 512                 if(property)
 513                 {
 514                         property->timestamp = dbobj.time;
 515                         property->sequence = dbobj.sequence;
 516
 517                         reply->values.push_back(property);
 518                 }
 519         }
 520
 521         reply->success = true;
 522         reply->completed(reply);
 523
 524         delete db;
 525 }
 526
 527 AsyncPropertyReply *DatabaseSink::setProperty(AsyncSetPropertyRequest request)
 528 {
 529         AsyncPropertyReply* reply = new AsyncPropertyReply(request);
 530         reply->success = false;
 531
 532         if(request.property == DatabaseLogging)
 533         {
 534                 if(request.value->value<bool>())
 535                 {
 536                         setPlayback(false);
 537                         startDb();
 538                         reply->success = true;
 539                         databaseLogging = true;
 540                         routingEngine->updateProperty(&databaseLogging,uuid());
 541                 }
 542                 else
 543                 {
 544                         stopDb();
 545                         reply->success = true;
 546                         databaseLogging = false;
 547                         routingEngine->updateProperty(&databaseLogging,uuid());
 548                 }
 549         }
 550
 551         else if(request.property == DatabaseFile)
 552         {
 553                 std::string fname = request.value->toString();
 554
 555                 databaseName = fname;
 556
 557                 routingEngine->updateProperty(&databaseName,uuid());
 558
 559                 reply->success = true;
 560         }
 561         else if( request.property == DatabasePlayback)
 562         {
 563                 if(request.value->value<bool>())
 564                 {
 565                         setLogging(false);
 566                         startPlayback();
 567
 568                         routingEngine->updateProperty(&playback,uuid());
 569                 }
 570                 else
 571                 {
 572                         if(playbackShared)
 573                                 playbackShared->stop = true;
 574
 575                         playback = false;
 576
 577                         routingEngine->updateProperty(&playback,uuid());
 578                 }
 579
 580                 reply->success = true;
 581         }
 582
 583         return reply;
 584 }
 585
 586 void DatabaseSink::subscribeToPropertyChanges(VehicleProperty::Property )
 587 {
 588
 589 }
 590
 591 void DatabaseSink::unsubscribeToPropertyChanges(VehicleProperty::Property )
 592 {
 593 }