plugins/database/databasesink.cpp

   1 #include "databasesink.h"
   2 #include "abstractroutingengine.h"
   3
   4 #include <json-glib/json-glib.h>
   5
   6 extern "C" AbstractSinkManager * create(AbstractRoutingEngine* routingengine, map<string, string> config)
   7 {
   8         return new DatabaseSinkManager(routingengine, config);
   9 }
  10
  11 DatabaseSink::DatabaseSink(AbstractRoutingEngine *engine, map<std::string, std::string> config)
  12         :AbstractSource(engine,config)
  13 {
  14         databaseName = "storage";
  15         tablename = "data";
  16         tablecreate = "CREATE TABLE IF NOT EXISTS data (key TEXT, value BLOB, source TEXT, time REAL, sequence REAL)";
  17         shared = new Shared;
  18         shared->db->init(databaseName, tablename, tablecreate);
  19
  20         auto cb = [](gpointer data)
  21         {
  22                 Shared *shared = (Shared*)data;
  23
  24                 while(1)
  25                 {
  26                         DBObject* obj = shared->queue.pop();
  27
  28                         if( obj->quit )
  29                         {
  30                                 delete obj;
  31                                 break;
  32                         }
  33
  34                         DictionaryList<string> dict;
  35
  36                         NameValuePair<string> one("key", obj->key);
  37                         NameValuePair<string> two("value", obj->value);
  38                         NameValuePair<string> three("source", obj->source);
  39                         NameValuePair<string> four("time", boost::lexical_cast<string>(obj->time));
  40                         NameValuePair<string> five("sequence", boost::lexical_cast<string>(obj->sequence));
  41
  42                         dict.push_back(one);
  43                         dict.push_back(two);
  44                         dict.push_back(three);
  45                         dict.push_back(four);
  46                         dict.push_back(five);
  47
  48                         shared->db->insert(dict);
  49                         delete obj;
  50                 }
  51
  52                 void* ret = NULL;
  53                 return ret;
  54         };
  55
  56         thread = g_thread_new("dbthread", cb, shared);
  57
  58         parseConfig();
  59
  60         for(auto itr=propertiesToSubscribeTo.begin();itr!=propertiesToSubscribeTo.end();itr++)
  61         {
  62                 engine->subscribeToProperty(*itr,this);
  63         }
  64
  65 }
  66
  67 DatabaseSink::~DatabaseSink()
  68 {
  69         DBObject* obj = new DBObject();
  70         obj->quit = true;
  71
  72         shared->queue.append(obj);
  73
  74         g_thread_join(thread);
  75
  76         delete shared;
  77 }
  78
  79
  80 void DatabaseSink::supportedChanged(PropertyList supportedProperties)
  81 {
  82
  83 }
  84
  85 PropertyList DatabaseSink::supported()
  86 {
  87         PropertyList props;
  88
  89         props.push_back(VehicleProperty::EngineSpeed);
  90         props.push_back(VehicleProperty::VehicleSpeed);
  91         props.push_back(DatabaseLoggingProperty);
  92
  93         return props;
  94 }
  95
  96 void DatabaseSink::parseConfig()
  97 {
  98         JsonParser* parser = json_parser_new();
  99         GError* error = nullptr;
 100         if(!json_parser_load_from_data(parser, configuration["properties"].c_str(),configuration["properties"].size(), &error))
 101         {
 102                 DebugOut()<<"Failed to load config: "<<error->message;
 103                 throw std::runtime_error("Failed to load config");
 104         }
 105
 106         JsonNode* node = json_parser_get_root(parser);
 107
 108         if(node == nullptr)
 109                 throw std::runtime_error("Unable to get JSON root object");
 110
 111         JsonReader* reader = json_reader_new(node);
 112
 113         if(reader == nullptr)
 114                 throw std::runtime_error("Unable to create JSON reader");
 115
 116         json_reader_read_member(reader,"properties");
 117
 118         g_assert(json_reader_is_array(reader));
 119
 120         for(int i=0; i < json_reader_count_elements(reader); i++)
 121         {
 122                 json_reader_read_element(reader, i);
 123                 std::string prop = json_reader_get_string_value(reader);
 124                 propertiesToSubscribeTo.push_back(prop);
 125                 json_reader_end_element(reader);
 126
 127                 DebugOut()<<"DatabaseSink logging: "<<prop<<endl;
 128         }
 129
 130         if(error) g_error_free(error);
 131
 132         g_object_unref(reader);
 133         g_object_unref(parser);
 134 }
 135
 136 void DatabaseSink::propertyChanged(VehicleProperty::Property property, AbstractPropertyType *value, std::string uuid)
 137 {
 138         DBObject* obj = new DBObject;
 139         obj->key = property;
 140         obj->value = value->toString();
 141         obj->source = uuid;
 142         obj->time = value->timestamp;
 143         obj->sequence = value->sequence;
 144
 145         shared->queue.append(obj);
 146 }
 147
 148
 149 std::string DatabaseSink::uuid()
 150 {
 151         return "9f88156e-cb92-4472-8775-9c08addf50d3";
 152 }
 153
 154 void DatabaseSink::getPropertyAsync(AsyncPropertyReply *reply)
 155 {
 156
 157 }
 158
 159 void DatabaseSink::getRangePropertyAsync(AsyncRangePropertyReply *reply)
 160 {
 161         BaseDB * db = new BaseDB();
 162         db->init(databaseName, tablename, tablecreate);
 163
 164         ostringstream query;
 165         query.precision(15);
 166
 167         query<<"SELECT * from "<<tablename<<" WHERE ";
 168
 169         if(reply->timeBegin && reply->timeEnd)
 170         {
 171                 query<<" time BETWEEN "<<reply->timeBegin<<" AND "<<reply->timeEnd;
 172         }
 173
 174         if(reply->sequenceBegin >= 0 && reply->sequenceEnd >=0)
 175         {
 176                 query<<" AND sequence BETWEEN "<<reply->sequenceBegin<<" AND "<<reply->sequenceEnd;
 177         }
 178
 179         std::vector<std::vector<string>> data = db->select(query.str());
 180
 181         std::list<AbstractPropertyType*> cleanup;
 182
 183         for(auto i=0;i<data.size();i++)
 184         {
 185                 if(data[i].size() != 5)
 186                         continue;
 187
 188                 DBObject dbobj;
 189                 dbobj.key = data[i][0];
 190                 dbobj.value = data[i][1];
 191                 dbobj.source = data[i][2];
 192                 dbobj.time = boost::lexical_cast<double>(data[i][3]);
 193                 dbobj.sequence = boost::lexical_cast<double>(data[i][4]);
 194
 195                 AbstractPropertyType* property = VehicleProperty::getPropertyTypeForPropertyNameValue(dbobj.key, dbobj.value);
 196                 if(property)
 197                 {
 198                         property->timestamp = dbobj.time;
 199                         property->sequence = dbobj.sequence;
 200
 201                         reply->values.push_back(property);
 202                         cleanup.push_back(property);
 203                 }
 204         }
 205
 206         reply->success = true;
 207         reply->completed(reply);
 208
 209         /// reply is owned by the requester of this call.  we own the data:
 210         for(auto itr = cleanup.begin(); itr != cleanup.end(); itr++)
 211         {
 212                 delete *itr;
 213         }
 214
 215         delete db;
 216 }
 217
 218 AsyncPropertyReply *DatabaseSink::setProperty(AsyncSetPropertyRequest request)
 219 {
 220         AsyncPropertyReply* reply = new AsyncPropertyReply(request);
 221         reply->success = false;
 222
 223         if(request.property == DatabaseLoggingProperty)
 224         {
 225                 if(request.value->value<bool>())
 226                 {
 227                         ///TODO: start or stop logging thread
 228                 }
 229         }
 230
 231         return reply;
 232 }
 233
 234 void DatabaseSink::subscribeToPropertyChanges(VehicleProperty::Property )
 235 {
 236
 237 }
 238
 239 void DatabaseSink::unsubscribeToPropertyChanges(VehicleProperty::Property )
 240 {
 241 }