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