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