void Query::InitializeGetCommand(Command & command) {
command = Command(commandId);
int contentSize = sizeof(unsigned char) + (sizeof(int) + objectId.size());
command.WriteHeader(contentSize);
command.Content().writeUnsignedByte(variableId);
command.Content().writeString(objectId);
}
void LaneQuery::InitializeRequestGlobalTimeCommand(Command & command) {
command = Command(commandId);
int contentSize = sizeof(unsigned char) + (sizeof(int) + objectId.size()) + sizeof(unsigned char) + sizeof(int);
command.WriteHeader(contentSize);
command.Content().writeUnsignedByte(variableId);
command.Content().writeString(objectId);
command.Content().writeUnsignedByte(TYPE_INTEGER);
command.Content().writeInt(2700);
}
void SubscribeQuery::InitializeCommand(Command & command) {
command = Command(commandId);
string s = "*";
int variablesCount = variables.size();
command.WriteHeader(sizeof(int) + sizeof(int) + (sizeof(int) + (int)s.length()) + sizeof(unsigned char) + variablesCount);
command.Content().writeInt(startTime); // Time: the subscription is executed only in time steps >= this value; in ms
command.Content().writeInt(stopTime); // Time: the subscription is executed in time steps <= this value; the subscription is removed if the simulation has reached a higher time step; in ms
command.Content().writeString(s); // objectId -> unused
command.Content().writeUnsignedByte(variablesCount); // number of subscribed variables
for (vector<int>::iterator i = variables.begin(); i != variables.end(); ++i) {
command.Content().writeUnsignedByte((int)*i);
}
}
void Query::SendRequestAndReceiveResponse(Command & command) {
try {
socket->sendExact(command.Content());
}
catch (SocketException & e) {
cout << "--Error while sending command: " << e.what();
}
catch (exception & e) {
cout << "--Error while sending command: " << e.what();
}
try {
responseStream.reset();
socket->receiveExact(responseStream);
}
catch (SocketException & e) {
cout << "Error while receiving command: " << e.what();
}
}
