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