//summary
//Method reads and deserializes xml file located on the server
//Returns restaurant Collection
private restaurant_reviews GetRestaurantsFromXml()
{
string filePath = HttpContext.Current.Server.MapPath("~/Data/RestaurantReview.xml");
restaurant_reviews restaurants = null;
using (FileStream file = new FileStream(filePath, FileMode.Open))
{
XmlSerializer serializer = new XmlSerializer(typeof(restaurant_reviews));
restaurants = (restaurant_reviews)serializer.Deserialize(file);
}
return(restaurants);
}
//Summary
//Method returns List of restaurant names
public List <string> GetRestaurantNames()
{
List <string> names = new List <string>();
restaurant_reviews allRestaurants = GetRestaurantsFromXml();
if (allRestaurants != null)
{
foreach (restaurant_reviewsRestaurant rest in allRestaurants.restaurant)
{
names.Add(rest.name);
}
}
return(names);
}
//Summary
//Methods retrieves specific restaurant by given id from XML file
//
// @param id
//
public RestaurantInfo GetRestaurantById(int?id)
{
//Check if id is not null
if (id == null)
{
return(null);
}
//Get all restaurants from xml file
restaurant_reviews allRestaurantsFromXml = GetRestaurantsFromXml();
RestaurantInfo restaurantInfo = null;
if (allRestaurantsFromXml != null)
{
foreach (restaurant_reviewsRestaurant r in allRestaurantsFromXml.restaurant)
{
if (r.id == id)
{
//Initialize Address object to pass it into RestaurantInfo
Address restaurantLocation = new Address
{
City = r.address.City,
PostalCode = r.address.Postal_code,
Province = r.address.Province,
Street = r.address.Street
};
//Initialize RestaurantInfo object
RestaurantInfo restaurant = new RestaurantInfo
{
Id = r.id,
Name = r.name,
Location = restaurantLocation,
Cost = r.prices.Value,
Rating = r.reviews.review.rating.Value,
Summary = r.reviews.review.summary
};
restaurantInfo = restaurant;
}
}
return(restaurantInfo);
}
return(null);
}
//Summary
//Methods saves any changes and updates the xml file
//
// @param RestaurantInfo object
//
// @return bool
//
public bool SaveRestaurant(RestaurantInfo restInfo)
{
if (restInfo == null)
{
return(false);
}
string filePath = HttpContext.Current.Server.MapPath("~/Data/RestaurantReview.xml");
restaurant_reviews restaurantReviews = null;
//Read xml file
using (FileStream file = new FileStream(filePath, FileMode.Open))
{
XmlSerializer serializer = new XmlSerializer(typeof(restaurant_reviews));
restaurantReviews = (restaurant_reviews)serializer.Deserialize(file);
}
restaurant_reviewsRestaurant restaurant = restaurantReviews.restaurant[restInfo.Id - 1];
if (restInfo != null)
{
restaurant.id = restInfo.Id;
restaurant.name = restInfo.Name;
restaurant.address.Street = restInfo.Location.Street;
restaurant.address.Province = restInfo.Location.Province;
restaurant.address.Postal_code = restInfo.Location.PostalCode;
restaurant.address.City = restInfo.Location.City;
restaurant.prices.Value = (byte)restInfo.Cost;
restaurant.reviews.review.rating.Value = (byte)restInfo.Rating;
restaurant.reviews.review.summary = restInfo.Summary;
using (FileStream file = new FileStream(filePath, FileMode.Create))
{
XmlSerializer serializer = new XmlSerializer(typeof(restaurant_reviews));
serializer.Serialize(file, restaurantReviews);
}
}
return(true);
}
//Summary
//Method retrieves specific restaurant by given name
//
//@param string
//
public RestaurantInfo GetRestaurantByName(string name)
{
if (name == null || name == "")
{
return(null);
}
restaurant_reviews allRestaurantsFromXml = GetRestaurantsFromXml();
RestaurantInfo restaurant = null;
foreach (restaurant_reviewsRestaurant r in allRestaurantsFromXml.restaurant)
{
if (name == r.name)
{
Address restaurantLocation = new Address
{
City = r.address.City,
Province = r.address.Province,
PostalCode = r.address.Postal_code,
Street = r.address.Street
};
RestaurantInfo restaurantInfo = new RestaurantInfo
{
Id = r.id,
Name = r.name,
Location = restaurantLocation,
Cost = r.prices.Value,
Rating = r.reviews.review.rating.Value,
Summary = r.reviews.review.summary
};
restaurant = restaurantInfo;
}
}
return(restaurant);
}
//Summary
//Method returns a List of restaurants
public List <RestaurantInfo> GetAllRestaurants()
{
//Initialize list of restaurants
List <RestaurantInfo> restaurants = new List <RestaurantInfo>();
//Retrive restaurants information from xml file
restaurant_reviews allRestaurantsFromXml = GetRestaurantsFromXml();
if (allRestaurantsFromXml != null)
{
foreach (restaurant_reviewsRestaurant r in allRestaurantsFromXml.restaurant)
{
//Create new Address object
Address restaurantLocation = new Address();
restaurantLocation.City = r.address.City;
restaurantLocation.PostalCode = r.address.Postal_code;
restaurantLocation.Province = r.address.Province;
restaurantLocation.Street = r.address.Street;
//Create new RestaurantInfo object and pass Address object as a Location
RestaurantInfo restaurant = new RestaurantInfo
{
Id = r.id,
Name = r.name,
Location = restaurantLocation,
Cost = r.prices.Value,
Rating = r.reviews.review.rating.Value,
Summary = r.reviews.review.summary
};
//Add restaurant to RestaurantInfo List
restaurants.Add(restaurant);
}
}
//Return the list
return(restaurants);
}
