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                                 break;
  31                         }
  32
  33                         DictionaryList<string> dict;
  34
  35                         NameValuePair<string> one("key", obj->key);
  36                         NameValuePair<string> two("value", obj->value);
  37                         NameValuePair<string> three("source", obj->source);
  38                         NameValuePair<string> four("time", boost::lexical_cast<string>(obj->time));
  39                         NameValuePair<string> five("sequence", boost::lexical_cast<string>(obj->sequence));
  40
  41                         dict.push_back(one);
  42                         dict.push_back(two);
  43                         dict.push_back(three);
  44                         dict.push_back(four);
  45                         dict.push_back(five);
  46
  47                         shared->db->insert(dict);
  48                         delete obj;
  49                 }
  50
  51                 void* ret = NULL;
  52                 return ret;
  53         };
  54
  55         thread = g_thread_new("dbthread", cb, shared);
  56
  57         parseConfig();
  58
  59         for(auto itr=propertiesToSubscribeTo.begin();itr!=propertiesToSubscribeTo.end();itr++)
  60         {
  61                 engine->subscribeToProperty(*itr,this);
  62         }
  63
  64 }
  65
  66 DatabaseSink::~DatabaseSink()
  67 {
  68         DBObject* obj = new DBObject();
  69         obj->quit = true;
  70
  71         shared->queue.append(obj);
  72
  73         g_thread_join(thread);
  74
  75         delete shared;
  76 }
  77
  78
  79 void DatabaseSink::supportedChanged(PropertyList supportedProperties)
  80 {
  81
  82 }
  83
  84 PropertyList DatabaseSink::supported()
  85 {
  86         PropertyList props;
  87
  88         props.push_back(VehicleProperty::EngineSpeed);
  89         props.push_back(VehicleProperty::VehicleSpeed);
  90
  91         return props;
  92 }
  93
  94 void DatabaseSink::parseConfig()
  95 {
  96         JsonParser* parser = json_parser_new();
  97         GError* error = nullptr;
  98         if(!json_parser_load_from_data(parser, configuration["properties"].c_str(),configuration["properties"].size(), &error))
  99         {
 100                 DebugOut()<<"Failed to load config: "<<error->message;
 101                 throw std::runtime_error("Failed to load config");
 102         }
 103
 104         JsonNode* node = json_parser_get_root(parser);
 105
 106         if(node == nullptr)
 107                 throw std::runtime_error("Unable to get JSON root object");
 108
 109         JsonReader* reader = json_reader_new(node);
 110
 111         if(reader == nullptr)
 112                 throw std::runtime_error("Unable to create JSON reader");
 113
 114         json_reader_read_member(reader,"properties");
 115
 116         g_assert(json_reader_is_array(reader));
 117
 118         for(int i=0; i < json_reader_count_elements(reader); i++)
 119         {
 120                 json_reader_read_element(reader, i);
 121                 std::string prop = json_reader_get_string_value(reader);
 122                 propertiesToSubscribeTo.push_back(prop);
 123                 json_reader_end_element(reader);
 124
 125                 DebugOut()<<"DatabaseSink logging: "<<prop<<endl;
 126         }
 127
 128         if(error) g_error_free(error);
 129
 130         g_object_unref(reader);
 131         g_object_unref(parser);
 132 }
 133
 134 void DatabaseSink::propertyChanged(VehicleProperty::Property property, AbstractPropertyType *value, std::string uuid)
 135 {
 136         DBObject* obj = new DBObject;
 137         obj->key = property;
 138         obj->value = value->toString();
 139         obj->source = uuid;
 140         obj->time = value->timestamp;
 141         obj->sequence = value->sequence;
 142
 143         shared->queue.append(obj);
 144 }
 145
 146
 147 std::string DatabaseSink::uuid()
 148 {
 149         return "9f88156e-cb92-4472-8775-9c08addf50d3";
 150 }
 151
 152 void DatabaseSink::getPropertyAsync(AsyncPropertyReply *reply)
 153 {
 154
 155 }
 156
 157 void DatabaseSink::getRangePropertyAsync(AsyncRangePropertyReply *reply)
 158 {
 159         BaseDB * db = new BaseDB();
 160         db->init(databaseName, tablename, tablecreate);
 161
 162         ostringstream query;
 163         query.precision(15);
 164
 165         query<<"SELECT * from "<<tablename<<" WHERE ";
 166
 167         if(reply->timeBegin && reply->timeEnd)
 168         {
 169                 query<<" time BETWEEN "<<reply->timeBegin<<" AND "<<reply->timeEnd;
 170         }
 171
 172         if(reply->sequenceBegin >= 0 && reply->sequenceEnd >=0)
 173         {
 174                 query<<" AND sequence BETWEEN "<<reply->sequenceBegin<<" AND "<<reply->sequenceEnd;
 175         }
 176
 177         std::vector<std::vector<string>> data = db->select(query.str());
 178
 179         std::list<AbstractPropertyType*> cleanup;
 180
 181         for(auto i=0;i<data.size();i++)
 182         {
 183                 if(data[i].size() != 5)
 184                         continue;
 185
 186                 DBObject dbobj;
 187                 dbobj.key = data[i][0];
 188                 dbobj.value = data[i][1];
 189                 dbobj.source = data[i][2];
 190                 dbobj.time = boost::lexical_cast<double>(data[i][3]);
 191                 dbobj.sequence = boost::lexical_cast<double>(data[i][4]);
 192
 193                 AbstractPropertyType* property = VehicleProperty::getPropertyTypeForPropertyNameValue(dbobj.key, dbobj.value);
 194                 if(property)
 195                 {
 196                         property->timestamp = dbobj.time;
 197                         property->sequence = dbobj.sequence;
 198
 199                         reply->values.push_back(property);
 200                         cleanup.push_back(property);
 201                 }
 202         }
 203
 204         reply->success = true;
 205         reply->completed(reply);
 206
 207         /// reply is owned by the requester of this call.  we own the data:
 208         for(auto itr = cleanup.begin(); itr != cleanup.end(); itr++)
 209         {
 210                 delete *itr;
 211         }
 212
 213         delete db;
 214 }
 215
 216 AsyncPropertyReply *DatabaseSink::setProperty(AsyncSetPropertyRequest request)
 217 {
 218         AsyncPropertyReply* reply = new AsyncPropertyReply(request);
 219         reply->success = false;
 220         return reply;
 221 }
 222
 223 void DatabaseSink::subscribeToPropertyChanges(VehicleProperty::Property )
 224 {
 225
 226 }
 227
 228 void DatabaseSink::unsubscribeToPropertyChanges(VehicleProperty::Property )
 229 {
 230 }