public override void Validate(string userName, string password)
{
try
{
logger.LogNewMessage($"Validating username and password for user {userName}", LogType.INFO);
using (var dbContext = factory.GetContext())
{
var user = dbContext.Users.Where(x => x.UserName == userName).SingleOrDefault();
if (user == null || user == new User())
{
var errorMessage = $"User with username {userName} does not exist in database. Access denied.";
logger.LogNewMessage(errorMessage, LogType.WARNING);
throw new FaultException(errorMessage);
}
if (!user.CheckPassword(password))
{
var errorMessage = $"Wrong password for user {userName}. Access denied.";
logger.LogNewMessage(errorMessage, LogType.WARNING);
throw new FaultException(errorMessage);
}
}
logger.LogNewMessage($"User {userName} authenticated.", LogType.INFO);
}catch (Exception ex)
{
logger.LogNewMessage($"Authentication exception. Error {ex.Message}", LogType.ERROR);
throw new FaultException(ex.Message);
}
}
public void CloseServiceChannel()
{
try
{
logger.LogNewMessage($"Closing service host for host for type {contract}", LogType.INFO);
serviceHost.Close();
logger.LogNewMessage($"Successfully closed host for type {contract}", LogType.INFO);
}
catch (Exception ex)
{
logger.LogNewMessage($"Failed to close service host for type {contract}. ERROR message {ex.Message}", LogType.ERROR);
}
}
///
/// <param name="id"></param>
public Country GeCountryByID(int id)
{
try
{
logger.LogNewMessage($"Getting country by id {id}.", LogType.INFO);
using (var dbContext = factory.GetContext())
{
return(dbContext.Countries.Find(id));
}
}
catch (Exception ex)
{
logger.LogNewMessage($"Error occured getting country by id {id}. Message {ex.Message}", LogType.ERROR);
throw new FaultException(ex.Message);
}
}
private void InitializeServices()
{
try
{
logger.LogNewMessage($"Initializing service providers.", LogType.INFO);
countryService = new CountryServiceProvider(ServerLogger.GetOrCreate(), GetDatabaseContextFactory());
placeService = new PlaceServiceProvider(ServerLogger.GetOrCreate(), GetDatabaseContextFactory());
roadService = new RoadServiceProvider(ServerLogger.GetOrCreate(), GetDatabaseContextFactory());
stationService = new StationServiceProvider(ServerLogger.GetOrCreate(), GetDatabaseContextFactory());
trackService = new TrackServiceProvider(ServerLogger.GetOrCreate(), GetDatabaseContextFactory());
userService = new UserServiceProvider(ServerLogger.GetOrCreate(), GetDatabaseContextFactory());
}catch (Exception ex)
{
logger.LogNewMessage($"Error occured initializing service providers. ERROR {ex.Message}", LogType.ERROR);
}
}
///
/// <param name="station"></param>
public bool AddStation(Station station)
{
try
{
logger.LogNewMessage($"Adding new station to database", LogType.INFO);
using (var dbContext = factory.GetContext())
{
foreach (Track track in station.Tracks)
{
dbContext.Track.Attach(track);
track.StationId = station.Id;
}
dbContext.Stations.Attach(station);
dbContext.Places.Attach(station.Place);
dbContext.Stations.Add(station);
dbContext.SaveChanges();
}
logger.LogNewMessage($"Station added successfully.", LogType.INFO);
return(true);
}
catch (Exception ex)
{
logger.LogNewMessage($"Error occured, station couldn't be added. Message {ex.Message}", LogType.ERROR);
throw new FaultException(ex.Message);
}
}
///
/// <param name="user"></param>
public bool AddUser(User user)
{
try
{
logger.LogNewMessage($"Adding new user with username {user.UserName} to the database", LogType.INFO);
using (var dbContext = factory.GetContext())
{
dbContext.Users.Add(user);
dbContext.SaveChanges();
}
logger.LogNewMessage($"User added successfully.", LogType.INFO);
return(true);
}
catch (Exception ex)
{
logger.LogNewMessage($"Error occured, user couldn't be added. Message {ex.Message}", LogType.ERROR);
throw new FaultException(ex.Message);
}
}
///
/// <param name="place"></param>
public bool AddPlace(Place place)
{
try
{
logger.LogNewMessage($"Adding new with name {place.Name} and id {place.Id} to database..", LogType.INFO);
using (var dbContext = factory.GetContext())
{
dbContext.Places.Attach(place);
dbContext.Places.Add(place);
dbContext.SaveChanges();
}
logger.LogNewMessage($"Place added.", LogType.INFO);
return(true);
}
catch (Exception ex)
{
logger.LogNewMessage($"Error occured, place couldn't be added. ERROR message : {ex.Message}", LogType.ERROR);
throw new FaultException(ex.Message);
}
}
private void InitializeCountries()
{
//Initialize countries, countries were retrieved from https://textlists.info/geography/countries-of-the-world/
logger.LogNewMessage($"Initializing countries..", LogType.INFO);
try
{
var fileContent = File.ReadAllLines("countries.txt");
var worldCountries = new List <string>(fileContent);
logger.LogNewMessage($"Fetching countries from repository", LogType.DEBUG);
using (var dbContext = factory.GetContext())
{
var countries = dbContext.Countries.ToList();
List <Country> countriesToAdd = new List <Country>();
foreach (string countryName in worldCountries)
{
if (countries.Where(x => x.Name == countryName).Count() == 0)
{
countriesToAdd.Add(new Country(0, countryName));
}
}
if (countriesToAdd.Count > 0)
{
dbContext.Countries.AddRange(countriesToAdd);
}
dbContext.SaveChanges();
logger.LogNewMessage($"Countries intialized successfully.", LogType.INFO);
}
}
catch (Exception ex)
{
logger.LogNewMessage($"Error occured trying to intialize countries. Message {ex.Message}", LogType.ERROR);
}
}
///
/// <param name="road"></param>
public Road AddRoad(Road road)
{
try
{
logger.LogNewMessage($"Adding new road to database", LogType.INFO);
using (var dbContext = factory.GetContext())
{
foreach (Station s in road.Stations)
{
dbContext.Stations.Attach(s);
}
dbContext.Roads.Add(road);
dbContext.SaveChanges();
logger.LogNewMessage($"Road added.", LogType.INFO);
return(road);
}
}
catch (Exception ex)
{
logger.LogNewMessage($"Error occured, couldn't add entity. Error message {ex.Message}", LogType.ERROR);
throw new FaultException(ex.Message);
}
}
///
/// <param name="track"></param>
public bool AddTrack(Track track)
{
try
{
logger.LogNewMessage($"Adding new track to the database", LogType.INFO);
using (var dbContext = factory.GetContext())
{
dbContext.Track.Attach(track);
dbContext.Track.Add(track);
dbContext.SaveChanges();
}
logger.LogNewMessage($"Track added successfully.", LogType.INFO);
return(true);
}
catch (Exception ex)
{
logger.LogNewMessage($"Error occured, track couldn't be added. Message {ex.Message}", LogType.ERROR);
throw new FaultException(ex.Message);
}
}