plugins/database/databasesink.cpp

   1 #include "databasesink.h"
   2 #include "abstractroutingengine.h"
   3 #include "listplusplus.h"
   4
   5 #include <json-glib/json-glib.h>
   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         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                 shared->db->insert(dict);
  46                 delete obj;
  47         }
  48
  49         return NULL;
  50 }
  51
  52 int getNextEvent(gpointer data)
  53 {
  54         PlaybackShared* pbshared = static_cast<PlaybackShared*>(data);
  55
  56         if(!pbshared)
  57                 throw std::runtime_error("failed to cast PlaybackShared object");
  58
  59         auto itr = pbshared->playbackQueue.begin();
  60
  61         if(itr == pbshared->playbackQueue.end())
  62         {
  63                 return 0;
  64         }
  65
  66         DBObject* obj = *itr;
  67
  68         AbstractPropertyType* value = VehicleProperty::getPropertyTypeForPropertyNameValue(obj->key,obj->value);
  69
  70         if(value)
  71         {
  72                 pbshared->routingEngine->updateProperty(obj->key, value, pbshared->uuid);
  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, 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)
  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         parseConfig();
 107
 108         for(auto itr=propertiesToSubscribeTo.begin();itr!=propertiesToSubscribeTo.end();itr++)
 109         {
 110                 engine->subscribeToProperty(*itr,this);
 111         }
 112
 113         mSupported.push_back(DatabaseFileProperty);
 114         mSupported.push_back(DatabaseLoggingProperty);
 115         mSupported.push_back(DatabasePlaybackProperty);
 116
 117         routingEngine->setSupported(mSupported,this);
 118
 119 }
 120
 121 DatabaseSink::~DatabaseSink()
 122 {
 123         if(shared)
 124         {
 125                 DBObject* obj = new DBObject();
 126                 obj->quit = true;
 127
 128                 shared->queue.append(obj);
 129
 130                 g_thread_join(thread);
 131                 g_thread_unref(thread);
 132                 delete shared;
 133         }
 134 }
 135
 136
 137 void DatabaseSink::supportedChanged(PropertyList supportedProperties)
 138 {
 139
 140 }
 141
 142 PropertyList DatabaseSink::supported()
 143 {
 144         return mSupported;
 145 }
 146
 147 void DatabaseSink::parseConfig()
 148 {
 149         JsonParser* parser = json_parser_new();
 150         GError* error = nullptr;
 151         if(!json_parser_load_from_data(parser, configuration["properties"].c_str(),configuration["properties"].size(), &error))
 152         {
 153                 DebugOut()<<"Failed to load config: "<<error->message;
 154                 throw std::runtime_error("Failed to load config");
 155         }
 156
 157         JsonNode* node = json_parser_get_root(parser);
 158
 159         if(node == nullptr)
 160                 throw std::runtime_error("Unable to get JSON root object");
 161
 162         JsonReader* reader = json_reader_new(node);
 163
 164         if(reader == nullptr)
 165                 throw std::runtime_error("Unable to create JSON reader");
 166
 167         json_reader_read_member(reader,"properties");
 168
 169         g_assert(json_reader_is_array(reader));
 170
 171         for(int i=0; i < json_reader_count_elements(reader); i++)
 172         {
 173                 json_reader_read_element(reader, i);
 174                 std::string prop = json_reader_get_string_value(reader);
 175                 propertiesToSubscribeTo.push_back(prop);
 176                 json_reader_end_element(reader);
 177
 178                 DebugOut()<<"DatabaseSink logging: "<<prop<<endl;
 179         }
 180
 181         if(error) g_error_free(error);
 182
 183         g_object_unref(reader);
 184         g_object_unref(parser);
 185 }
 186
 187 void DatabaseSink::stopDb()
 188 {
 189         if(!shared)
 190                 return;
 191
 192         DBObject *obj = new DBObject();
 193         obj->quit = true;
 194         shared->queue.append(obj);
 195
 196         g_thread_join(thread);
 197         g_thread_unref(thread);
 198
 199         delete shared;
 200         shared = NULL;
 201 }
 202
 203 void DatabaseSink::startDb()
 204 {
 205         if(playback)
 206         {
 207                 DebugOut(0)<<"ERROR: tried to start logging during playback.  Only logging or playback can be used at one time"<<endl;
 208                 return;
 209         }
 210
 211         if(shared)
 212         {
 213                 DebugOut(0)<<"WARNING: logging already started.  doing nothing."<<endl;
 214                 return;
 215         }
 216
 217         initDb();
 218
 219 //      thread = g_thread_new("dbthread", cbFunc, shared);
 220 }
 221
 222 void DatabaseSink::startPlayback()
 223 {
 224         if(playback)
 225                 return;
 226
 227         playback = true;
 228
 229         initDb();
 230
 231         /// get supported:
 232
 233         vector<vector<string> > supportedStr = shared->db->select("SELECT DISTINCT key FROM "+tablename);
 234
 235         for(int i=0; i < supportedStr.size(); i++)
 236         {
 237                 if(!ListPlusPlus<VehicleProperty::Property>(&mSupported).contains(supportedStr[i][0]))
 238                         mSupported.push_back(supportedStr[i][0]);
 239         }
 240
 241         routingEngine->setSupported(supported(), this);
 242
 243         /// populate playback queue:
 244
 245         vector<vector<string> > results = shared->db->select("SELECT * FROM "+tablename);
 246
 247         if(playbackShared)
 248         {
 249                 delete playbackShared;
 250         }
 251
 252         playbackShared = new PlaybackShared(routingEngine,uuid());
 253
 254         for(int i=0;i<results.size();i++)
 255         {
 256                 if(results[i].size() < 5)
 257                 {
 258                         throw std::runtime_error("column mismatch in query");
 259                 }
 260
 261                 DBObject* obj = new DBObject();
 262
 263                 obj->key = results[i][0];
 264                 obj->value = results[i][1];
 265                 obj->source = results[i][2];
 266                 obj->time = boost::lexical_cast<double>(results[i][3]);
 267                 obj->sequence = boost::lexical_cast<uint16_t>(results[i][4]);
 268
 269                 playbackShared->playbackQueue.push_back(obj);
 270         }
 271 }
 272
 273 void DatabaseSink::initDb()
 274 {
 275         if(shared) delete shared;
 276
 277         shared = new Shared;
 278         shared->db->init(databaseName, tablename, tablecreate);
 279 }
 280
 281 void DatabaseSink::propertyChanged(VehicleProperty::Property property, AbstractPropertyType *value, std::string uuid)
 282 {
 283         if(!shared)
 284                 return;
 285
 286         DBObject* obj = new DBObject;
 287         obj->key = property;
 288         obj->value = value->toString();
 289         obj->source = uuid;
 290         obj->time = value->timestamp;
 291         obj->sequence = value->sequence;
 292
 293         shared->queue.append(obj);
 294 }
 295
 296
 297 std::string DatabaseSink::uuid()
 298 {
 299         return "9f88156e-cb92-4472-8775-9c08addf50d3";
 300 }
 301
 302 void DatabaseSink::getPropertyAsync(AsyncPropertyReply *reply)
 303 {
 304         reply->success = false;
 305
 306         if(reply->property == DatabaseFileProperty)
 307         {
 308                 StringPropertyType temp(databaseName);
 309                 reply->value = &temp;
 310
 311                 reply->success = true;
 312                 reply->completed(reply);
 313
 314                 return;
 315         }
 316         else if(reply->property == DatabaseLoggingProperty)
 317         {
 318                 BasicPropertyType<bool> temp = shared;
 319
 320                 reply->value = &temp;
 321                 reply->success = true;
 322                 reply->completed(reply);
 323
 324                 return;
 325         }
 326
 327         else if(reply->property == DatabasePlaybackProperty)
 328         {
 329                 BasicPropertyType<bool> temp = playback;
 330                 reply->value = &temp;
 331                 reply->success = true;
 332                 reply->completed(reply);
 333
 334                 return;
 335         }
 336
 337         reply->completed(reply);
 338 }
 339
 340 void DatabaseSink::getRangePropertyAsync(AsyncRangePropertyReply *reply)
 341 {
 342         BaseDB * db = new BaseDB();
 343         db->init(databaseName, tablename, tablecreate);
 344
 345         ostringstream query;
 346         query.precision(15);
 347
 348         query<<"SELECT * from "<<tablename<<" WHERE ";
 349
 350         if(reply->timeBegin && reply->timeEnd)
 351         {
 352                 query<<" time BETWEEN "<<reply->timeBegin<<" AND "<<reply->timeEnd;
 353         }
 354
 355         if(reply->sequenceBegin >= 0 && reply->sequenceEnd >=0)
 356         {
 357                 query<<" AND sequence BETWEEN "<<reply->sequenceBegin<<" AND "<<reply->sequenceEnd;
 358         }
 359
 360         std::vector<std::vector<string>> data = db->select(query.str());
 361
 362         std::list<AbstractPropertyType*> cleanup;
 363
 364         for(auto i=0;i<data.size();i++)
 365         {
 366                 if(data[i].size() != 5)
 367                         continue;
 368
 369                 DBObject dbobj;
 370                 dbobj.key = data[i][0];
 371                 dbobj.value = data[i][1];
 372                 dbobj.source = data[i][2];
 373                 dbobj.time = boost::lexical_cast<double>(data[i][3]);
 374                 dbobj.sequence = boost::lexical_cast<double>(data[i][4]);
 375
 376                 AbstractPropertyType* property = VehicleProperty::getPropertyTypeForPropertyNameValue(dbobj.key, dbobj.value);
 377                 if(property)
 378                 {
 379                         property->timestamp = dbobj.time;
 380                         property->sequence = dbobj.sequence;
 381
 382                         reply->values.push_back(property);
 383                         cleanup.push_back(property);
 384                 }
 385         }
 386
 387         reply->success = true;
 388         reply->completed(reply);
 389
 390         /// reply is owned by the requester of this call.  we own the data:
 391         for(auto itr = cleanup.begin(); itr != cleanup.end(); itr++)
 392         {
 393                 delete *itr;
 394         }
 395
 396         delete db;
 397 }
 398
 399 AsyncPropertyReply *DatabaseSink::setProperty(AsyncSetPropertyRequest request)
 400 {
 401         AsyncPropertyReply* reply = new AsyncPropertyReply(request);
 402         reply->success = false;
 403
 404         if(request.property == DatabaseLoggingProperty)
 405         {
 406                 if(request.value->value<bool>())
 407                 {
 408                         ///TODO: start or stop logging thread
 409                         startDb();
 410                         reply->success = true;
 411                 }
 412                 else
 413                 {
 414                         stopDb();
 415                         reply->success = true;
 416                 }
 417         }
 418
 419         else if(request.property == DatabaseFileProperty)
 420         {
 421                 std::string fname = request.value->toString();
 422
 423                 databaseName = fname;
 424
 425                 StringPropertyType temp(databaseName);
 426
 427                 routingEngine->updateProperty(DatabaseFileProperty,&temp,uuid());
 428
 429                 reply->success = true;
 430         }
 431         else if( request.property == DatabasePlaybackProperty)
 432         {
 433                 if(request.value->value<bool>())
 434                 {
 435                         startPlayback();
 436                 }
 437                 else
 438                 {
 439                         /// TODO: stop playback
 440                 }
 441
 442                 reply->success = true;
 443         }
 444
 445         return reply;
 446 }
 447
 448 void DatabaseSink::subscribeToPropertyChanges(VehicleProperty::Property )
 449 {
 450
 451 }
 452
 453 void DatabaseSink::unsubscribeToPropertyChanges(VehicleProperty::Property )
 454 {
 455 }