public void returnBook(int userId, int bookId)
{
UserBookDTO userBookDto = new UserBookDTO(userId, bookId);
sendRequest(new Request(RequestType.RETURN_BOOK, userBookDto));
Response response = readResponse();
if (response.Type == ResponseType.ERROR)
{
string err = (string)response.Data;
throw new LibraryException(err);
}
}
public void returnBook(int userId, int bookId)
{
UserBookDTO userBookDto = new UserBookDTO(userId, bookId);
sendRequest(new ReturnBookRequest(userBookDto));
Response response = readResponse();
if (response is ErrorResponse)
{
ErrorResponse err = (ErrorResponse)response;
throw new LibraryException(err.Message);
}
}
private Response handleRequest(Request request)
{
Response response = null;
if (request.Type == RequestType.LOGIN)
{
Console.WriteLine("Login request ...");
UserDTO userDto = (UserDTO)request.Data;
try
{
User user = null;
lock (server)
{
user = server.login(userDto.UserName, userDto.Password, this);
}
return(new Response(ResponseType.LOGIN_SUCCESSFULLY, user));
}
catch (LibraryException e)
{
connected = false;
return(new Response(ResponseType.ERROR, e.Message));
}
}
if (request.Type == RequestType.LOGOUT)
{
Console.WriteLine("Logout request");
int userId = (int)request.Data;
try
{
lock (server)
{
server.logout(userId, this);
}
connected = false;
return(new Response(ResponseType.LOGOUT_SUCCESSFULLY, null));
}
catch (LibraryException e)
{
return(new Response(ResponseType.ERROR, e.Message));
}
}
if (request.Type == RequestType.GET_AVAILABLE_BOOKS)
{
Console.WriteLine("SendMessageRequest ...");
try
{
List <Book> availableBooks = null;
lock (server)
{
availableBooks = server.getAvailableBooks();
}
return(new Response(ResponseType.GET_AVAILABLE_BOOKS, availableBooks));
}
catch (LibraryException e)
{
return(new Response(ResponseType.ERROR, e.Message));
}
}
if (request.Type == RequestType.GET_USER_BOOKS)
{
Console.WriteLine("GetLoggedFriends Request ...");
int userId = (int)request.Data;
try
{
List <Book> userBooks = null;
lock (server)
{
userBooks = server.getUserBooks(userId);
}
return(new Response(ResponseType.GET_USER_BOOKS, userBooks));
}
catch (LibraryException e)
{
return(new Response(ResponseType.ERROR, e.Message));
}
}
if (request.Type == RequestType.SEARCH_BOOKS)
{
Console.WriteLine("GetLoggedFriends Request ...");
String searchKey = (String)request.Data;
try
{
List <Book> foundBooks = null;
lock (server)
{
foundBooks = server.searchBooks(searchKey);
}
return(new Response(ResponseType.SEARCH_BOOKS, foundBooks));
}
catch (LibraryException e)
{
return(new Response(ResponseType.ERROR, e.Message));
}
}
if (request.Type == RequestType.BORROW_BOOK)
{
Console.WriteLine("GetLoggedFriends Request ...");
UserBookDTO userBookDto = (UserBookDTO)request.Data;
try
{
lock (server)
{
server.borrowBook(userBookDto.UserId, userBookDto.BookId);
}
return(new Response(ResponseType.OK, null));
}
catch (LibraryException e)
{
return(new Response(ResponseType.ERROR, e.Message));
}
}
if (request.Type == RequestType.RETURN_BOOK)
{
Console.WriteLine("GetLoggedFriends Request ...");
UserBookDTO userBookDto = (UserBookDTO)request.Data;
try
{
lock (server)
{
server.returnBook(userBookDto.UserId, userBookDto.BookId);
}
return(new Response(ResponseType.OK, null));
}
catch (LibraryException e)
{
return(new Response(ResponseType.ERROR, e.Message));
}
}
return(response);
}
public BorrowBookRequest(UserBookDTO userBookDto)
{
this.userBookDto = userBookDto;
}
public ReturnBookRequest(UserBookDTO userBookDto)
{
this.userBookDto = userBookDto;
}
private Response handleRequest(Request request)
{
Response response = null;
if (request is LoginRequest)
{
Console.WriteLine("Login request ...");
LoginRequest loginRequest = (LoginRequest)request;
UserDTO userDto = loginRequest.UserDto;
try
{
User user = null;
lock (server)
{
user = server.login(userDto.UserName, userDto.Password, this);
}
return(new UserLoggedInResponse(user));
}
catch (LibraryException e)
{
connected = false;
return(new ErrorResponse(e.Message));
}
}
if (request is LogoutRequest)
{
Console.WriteLine("Logout request");
LogoutRequest logoutRequest = (LogoutRequest)request;
int userId = logoutRequest.UserId;
try
{
lock (server)
{
server.logout(userId, this);
}
connected = false;
return(new OkResponse());
}
catch (LibraryException e)
{
return(new ErrorResponse(e.Message));
}
}
if (request is GetAvailableBooksRequest)
{
Console.WriteLine("SendMessageRequest ...");
try
{
List <Book> availableBooks = null;
lock (server)
{
availableBooks = server.getAvailableBooks();
}
return(new GetAvailableBooksResponse(availableBooks));
}
catch (LibraryException e)
{
return(new ErrorResponse(e.Message));
}
}
if (request is GetUserBooksRequest)
{
Console.WriteLine("GetLoggedFriends Request ...");
GetUserBooksRequest getUserBooksRequest = (GetUserBooksRequest)request;
int userId = getUserBooksRequest.UserId;
try
{
List <Book> userBooks = null;
lock (server)
{
userBooks = server.getUserBooks(userId);
}
return(new GetUserBooksResponse(userBooks));
}
catch (LibraryException e)
{
return(new ErrorResponse(e.Message));
}
}
if (request is SearchBooksRequest)
{
Console.WriteLine("GetLoggedFriends Request ...");
SearchBooksRequest searchBooksRequest = (SearchBooksRequest)request;
String searchKey = searchBooksRequest.SearchKey;
try
{
List <Book> foundBooks = null;
lock (server)
{
foundBooks = server.searchBooks(searchKey);
}
return(new SearchBooksResponse(foundBooks));
}
catch (LibraryException e)
{
return(new ErrorResponse(e.Message));
}
}
if (request is BorrowBookRequest)
{
Console.WriteLine("GetLoggedFriends Request ...");
BorrowBookRequest borrowBookRequest = (BorrowBookRequest)request;
UserBookDTO userBookDto = borrowBookRequest.UserBookDto;
try
{
lock (server)
{
server.borrowBook(userBookDto.UserId, userBookDto.BookId);
}
return(new OkResponse());
}
catch (LibraryException e)
{
return(new ErrorResponse(e.Message));
}
}
if (request is ReturnBookRequest)
{
Console.WriteLine("GetLoggedFriends Request ...");
ReturnBookRequest returnBookRequest = (ReturnBookRequest)request;
UserBookDTO userBookDto = returnBookRequest.UserBookDto;
try
{
lock (server)
{
server.returnBook(userBookDto.UserId, userBookDto.BookId);
}
return(new OkResponse());
}
catch (LibraryException e)
{
return(new ErrorResponse(e.Message));
}
}
return(response);
}