/// <summary>
/// The method of forming a string name = Last Name + First Name, which will be added to the list.
/// Called by method Connect To Server ConnectToServer.
/// For Storage2.
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="f">The object to be added such as Friends.</param>
/// <param name="listOfFriends">Friend list.</param>
/// <returns>The format string "{Last Name} + {First Name}".</returns>
public string FindFriendsStorage2(Storage2Context context, Friends f, List<int> listOfFriends)
{
var queryFriend = context.User.Where(x => x.Id == f.Friend_Id);
var elementToAdd = queryFriend.ToList();
listOfFriends.Add(elementToAdd[0].Id);
return (elementToAdd[0].Last_Name + ' ' + elementToAdd[0].First_Name);
}
/// <summary>
/// Cached Storage2.
/// </summary>
private static void CacheThreadStorage2()
{
using (Storage2Context connection = new Storage2Context())
{
var entity = connection.User.ToList().FirstOrDefault();
}
}
/// <summary>
/// Methods of adding a record in the database (Storage2).
/// Called from the methods TransactionScopeWithStorage.
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="entity">The object to add the type of User.</param>
/// <param name="count">Counter.</param>
/// <param name="commitCount">Meaning - "every time commitCount doing SaveChanges()".</param>
/// <param name="recreateContext">It must be true.</param>
/// <returns>The context of the interaction with the database.</returns>
private static Storage2Context AddToStorage2(Storage2Context context, User entity, int count, int commitCount, bool recreateContext)
{
context.Set<User>().Add(entity);
if (count%commitCount != 0)
return context;
context.SaveChanges();
if (!recreateContext)
return context;
context.Dispose();
context = new Storage2Context();
context.Configuration.AutoDetectChangesEnabled = false;
return context;
}
/// <summary>
/// The method for forming transactions with Storage2.
/// Called from an event handler btnFill_Click.
/// </summary>
/// <param name="users">The list of users you want to add.</param>
public void TransactionScopeWithStorage2(List<User> users)
{
using (var scope = new TransactionScope())
{
Storage2Context context = null;
try
{
context = new Storage2Context();
context.Configuration.AutoDetectChangesEnabled = false;
var count = 0;
foreach (var entityToInsert in users)
{
++count;
context = AddToStorage2(context, entityToInsert, count, 100, true);
}
context.SaveChanges();
}
finally
{
context?.Dispose();
}
scope.Complete();
}
}
/// <summary>
/// Event: Make all friends.
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">Event Args</param>
override protected void btnFriends_Click(object sender, RoutedEventArgs e)
{
var arrayNumberFriends = new int[500000];
for (var i = 0; i < 500000; i++) arrayNumberFriends[i] = 0;
var rnd = new Random();
var storage1Context = new Storage1Context();
var storage2Context = new Storage2Context();
var storage3Context = new Storage3Context();
var storage4Context = new Storage4Context();
var storage5Context = new Storage5Context();
storage1Context.Configuration.AutoDetectChangesEnabled = false;
storage2Context.Configuration.AutoDetectChangesEnabled = false;
storage3Context.Configuration.AutoDetectChangesEnabled = false;
storage4Context.Configuration.AutoDetectChangesEnabled = false;
storage5Context.Configuration.AutoDetectChangesEnabled = false;
for (var i = 0; i < 500000; i++)
{
if (arrayNumberFriends[i] == 5)
continue;
var shortage = 5 - arrayNumberFriends[i];
for (var j = 0; j < shortage; j++)
{
var friendId = rnd.Next(1, 500001);
if (i == friendId)
friendId = rnd.Next(1, 500001);
if (i <= 100000)
{
storage1Context.Friends.Add(new Friends { User_Id = i + 1, Friend_Id = friendId });
storage1Context.SaveChanges();
arrayNumberFriends[i]++;
}
else if (i > 100000 && i < 200000)
{
storage2Context.Friends.Add(new Friends { User_Id = i, Friend_Id = friendId });
storage2Context.SaveChanges();
arrayNumberFriends[i]++;
}
else if (i > 200000 && i < 300000)
{
storage3Context.Friends.Add(new Friends { User_Id = i, Friend_Id = friendId });
storage3Context.SaveChanges();
arrayNumberFriends[i]++;
}
else if (i > 300000 && i < 400000)
{
storage4Context.Friends.Add(new Friends { User_Id = i, Friend_Id = friendId });
storage4Context.SaveChanges();
arrayNumberFriends[i]++;
}
else if (i > 400000 && i < 500000)
{
storage5Context.Friends.Add(new Friends { User_Id = i, Friend_Id = friendId });
storage5Context.SaveChanges();
arrayNumberFriends[i]++;
}
if (friendId > 1 && friendId < 100000)
{
storage1Context.Friends.Add(new Friends { User_Id = friendId, Friend_Id = (i <= 100000) ? i + 1 : i });
storage1Context.SaveChanges();
arrayNumberFriends[friendId]++;
}
else if (friendId > 100000 && friendId < 200000)
{
storage2Context.Friends.Add(new Friends { User_Id = friendId, Friend_Id = (i <= 100000) ? i + 1 : i });
storage2Context.SaveChanges();
arrayNumberFriends[friendId]++;
}
else if (friendId > 200000 && friendId < 300000)
{
storage3Context.Friends.Add(new Friends { User_Id = friendId, Friend_Id = (i <= 100000) ? i + 1 : i });
storage3Context.SaveChanges();
arrayNumberFriends[friendId]++;
}
else if (friendId > 300000 && friendId < 400000)
{
storage4Context.Friends.Add(new Friends { User_Id = friendId, Friend_Id = (i <= 100000) ? i + 1 : i });
storage4Context.SaveChanges();
arrayNumberFriends[friendId]++;
}
else if (friendId > 400000 && friendId < 500000)
{
storage5Context.Friends.Add(new Friends { User_Id = friendId, Friend_Id = (i <= 100000) ? i + 1 : i });
storage5Context.SaveChanges();
arrayNumberFriends[friendId]++;
}
}
}
}
/// <summary>
/// Determine the database with which it is necessary to make the connection.
/// The method for the modal form.
/// </summary>
/// <param name="userId">User ID.</param>
/// <param name="frm">An instance of a modal form.</param>
private void Connected(int userId, InfoWindow frm)
{
try
{
var localDb = new DataBase();
if (userId <= 100000)
{
using (var context = new Storage1Context())
{
localDb.ConnectToServer1(context, userId, _services, _logging, _friend, lstFriends, frm);
}
}
else if (userId > 100000 && userId <= 200000)
{
using (var context = new Storage2Context())
{
localDb.ConnectToServer2(context, userId, _services, _logging, _friend, lstFriends, frm);
}
}
else if (userId > 200000 && userId <= 300000)
{
using (var context = new Storage3Context())
{
localDb.ConnectToServer3(context, userId, _services, _logging, _friend, lstFriends, frm);
}
}
else if (userId > 300000 && userId <= 400000)
{
using (var context = new Storage4Context())
{
localDb.ConnectToServer4(context, userId, _services, _logging, _friend, lstFriends, frm);
}
}
else if (userId > 400000 && userId <= 500000)
{
using (var context = new Storage5Context())
{
localDb.ConnectToServer5(context, userId, _services, _logging, _friend, lstFriends, frm);
}
}
}
catch (ArgumentOutOfRangeException ex)
{
_logging.ProcessingException(ex);
MessageBox.Show(ex.Message, "Connection error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
/// <summary>
/// Event: Get detailed information about a friend.
/// </summary>
/// <param name="sender">Sender</param>
/// <param name="e">Event Args</param>
private void lstFriends_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
#region The code required for diagnosis - measures the time
var spectator = new Stopwatch();
spectator.Start();
#endregion
if (lstFriends.SelectedItem == null)
return;
var userId = _listOfFriends[lstFriends.SelectedIndex];
var frm = new InfoWindow {ShowInTaskbar = false /* Do not show on the taskbar. */};
if (userId <= 100000)
{
using (var context = new Storage1Context())
{
ConnectToServer1(context, userId, frm);
}
}
else if (userId > 100000 && userId < 200000)
{
using (var context = new Storage2Context())
{
ConnectToServer2(context, userId, frm);
}
}
else if (userId > 200000 && userId < 300000)
{
using (var context = new Storage3Context())
{
ConnectToServer3(context, userId, frm);
}
}
else if (userId > 300000 && userId < 400000)
{
using (var context = new Storage4Context())
{
ConnectToServer4(context, userId, frm);
}
}
else if (userId > 400000 && userId < 500000)
{
using (var context = new Storage5Context())
{
ConnectToServer5(context, userId, frm);
}
}
#region The code required for diagnosis - measures the time
spectator.Stop();
var ts = spectator.Elapsed;
frm.TimeParam = $"Lead time: {ts.Hours:00}:{ts.Minutes:00}:{ts.Seconds:00}.{ts.Milliseconds/10:00}";
#endregion
frm.Show();
}
/// <summary>
/// The connection method to Storage5.
/// Called from an event handler lstFriends_MouseDoubleClick.
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="userId">User ID.</param>
/// <param name="frm">Instance a modal window.</param>
private void ConnectToServer5(Storage5Context context, int userId, InfoWindow frm)
{
RedisOrSQLStorage5(context, userId, frm);
var queryFriendsStorage = context.Friends.Where(x => x.User_Id == userId);
var friends = queryFriendsStorage.ToList();
foreach (var f in friends)
{
if (f.Friend_Id < 100000)
{
using (var storage1Context = new Storage1Context())
{
frm.FriendsParam = FindFriendsStorage1(storage1Context, f, frm);
}
}
else if (f.Friend_Id > 100000 && f.Friend_Id < 200000)
{
using (var storage2Context = new Storage2Context())
{
frm.FriendsParam = FindFriendsStorage2(storage2Context, f, frm);
}
}
else if (f.Friend_Id > 200000 && f.Friend_Id < 300000)
{
using (var storage3Context = new Storage3Context())
{
frm.FriendsParam = FindFriendsStorage3(storage3Context, f, frm);
}
}
else if (f.Friend_Id > 300000 && f.Friend_Id < 400000)
{
using (var storage4Context = new Storage4Context())
{
frm.FriendsParam = FindFriendsStorage4(storage4Context, f, frm);
}
}
else if (f.Friend_Id > 400000 && f.Friend_Id < 500000)
{
frm.FriendsParam = FindFriendsStorage5(context, f, frm);
}
}
}
/// <summary>
/// Methods of forming a string name = Last Name + First Name, which will be added to the list.
/// Called from the methods GetUserInfoFromStorage.
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="f">The object to be added.</param>
/// <param name="frm">Instance a modal window.</param>
private static string FindFriendsStorage2(Storage2Context context, Friends f, InfoWindow frm)
{
var queryFriend = context.User.Where(x => x.Id == f.Friend_Id);
var elementToAdd = queryFriend.ToList();
frm.ListOfFriendsParam = elementToAdd[0].Id;
return (elementToAdd[0].Last_Name + ' ' + elementToAdd[0].First_Name);
}
/// <summary>
/// Check Method cached user in Redis or not.
/// If the user is not cached in Redis then its cache.
/// Called from the method ConnectToServer (modal).
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="userId">User ID.</param>
/// <param name="frm">Instance a modal window.</param>
private void RedisOrSQLStorage2(Storage2Context context, int userId, InfoWindow frm)
{
IDatabase db = null;
if (_redisIsStarted)
{
using (var redisClient = ConnectionMultiplexer.Connect("localhost"))
{
db = redisClient.GetDatabase();
string value = db.StringGet($"user:{userId}");
if (string.IsNullOrEmpty(value))
{
var queryUserStorage = context.User.Where(x => x.Id == userId);
GetDataFromSQL(queryUserStorage, db, true, frm);
}
else
{
GetDataFromRedis(value, frm);
}
}
}
else
{
var queryUserStorage = context.User.Where(x => x.Id == userId);
GetDataFromSQL(queryUserStorage, db, false, frm);
}
}
/// <summary>
/// The connection method to Storage4 (modal).
/// Called from an event handler lstFriends_MouseDoubleClick.
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="userId">User ID.</param>
/// <param name="services">Services class object to check - whether our services work.</param>
/// <param name="logging">Logging class object to create the log.</param>
/// <param name="friend">User friend.</param>
/// <param name="lstFriends">ListBox control where your friends list will be added.</param>
/// <param name="frm">Instance a modal window.</param>
public void ConnectToServer4(Storage4Context context, int userId, Services services, Logging logging, Friend friend, System.Windows.Controls.ListBox lstFriends, InfoWindow frm)
{
RedisOrSQLStorage4(context, userId, services, logging, frm);
var queryFriendsStorage = context.Friends.Where(x => x.User_Id == userId);
var friends = queryFriendsStorage.ToList();
foreach (var f in friends)
{
if (f.Friend_Id < 100000)
{
using (var storage1Context = new Storage1Context())
{
frm.FriendsParam = friend.FindFriendsStorage1(storage1Context, f, frm);
}
}
else if (f.Friend_Id > 100000 && f.Friend_Id < 200000)
{
using (var storage2Context = new Storage2Context())
{
frm.FriendsParam = friend.FindFriendsStorage2(storage2Context, f, frm);
}
}
else if (f.Friend_Id > 200000 && f.Friend_Id < 300000)
{
using (var storage3Context = new Storage3Context())
{
frm.FriendsParam = friend.FindFriendsStorage3(storage3Context, f, frm);
}
}
else if (f.Friend_Id > 300000 && f.Friend_Id < 400000)
{
frm.FriendsParam = friend.FindFriendsStorage4(context, f, frm);
}
else if (f.Friend_Id > 400000 && f.Friend_Id < 500000)
{
using (var storage5Context = new Storage5Context())
{
frm.FriendsParam = friend.FindFriendsStorage5(storage5Context, f, frm);
}
}
}
}
/// <summary>
/// The connection method to Storage5.
/// Called from an event handler btnConnected_Click.
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="userId">User ID.</param>
/// <param name="listOfFriends">User's friends list.</param>
/// <param name="services">Services class object to check - whether our services work.</param>
/// <param name="logging">Logging class object to create the log.</param>
/// <param name="friend">User friend.</param>
/// <param name="view">View class object to display the changes.</param>
/// <param name="textboxs">An array of text fields to fill.</param>
/// <param name="lstFriends">ListBox control where your friends list will be added.</param>
public void ConnectToServer5(Storage5Context context, int userId, List<int> listOfFriends, Services services, Logging logging, Friend friend, View.View view, System.Windows.Controls.TextBox[] textboxs, System.Windows.Controls.ListBox lstFriends)
{
RedisOrSQLStorage5(context, userId, services, logging, view, textboxs);
var queryFriendsStorage = context.Friends.Where(x => x.User_Id == userId);
var friends = queryFriendsStorage.ToList();
foreach (var f in friends)
{
if (f.Friend_Id < 100000)
{
using (var storage1Context = new Storage1Context())
{
lstFriends.Items.Add(friend.FindFriendsStorage1(storage1Context, f, listOfFriends));
}
}
else if (f.Friend_Id > 100000 && f.Friend_Id < 200000)
{
using (var storage2Context = new Storage2Context())
{
lstFriends.Items.Add(friend.FindFriendsStorage2(storage2Context, f, listOfFriends));
}
}
else if (f.Friend_Id > 200000 && f.Friend_Id < 300000)
{
using (var storage3Context = new Storage3Context())
{
lstFriends.Items.Add(friend.FindFriendsStorage3(storage3Context, f, listOfFriends));
}
}
else if (f.Friend_Id > 300000 && f.Friend_Id < 400000)
{
using (var storage4Context = new Storage4Context())
{
lstFriends.Items.Add(friend.FindFriendsStorage4(storage4Context, f, listOfFriends));
}
}
else if (f.Friend_Id > 400000 && f.Friend_Id < 500000)
{
lstFriends.Items.Add(friend.FindFriendsStorage5(context, f, listOfFriends));
}
}
}
/// <summary>
/// Check Method cached user in Redis or not.
/// If the user is not cached in Redis then its cache.
/// Called from the method ConnectToServer.
/// </summary>
/// <param name="context">The context of the interaction with the database.</param>
/// <param name="userId">User ID.</param>
/// <param name="services">Services class object to check - whether our services work.</param>
/// <param name="logging">Logging class object to create the log.</param>
/// <param name="view">View class object to display the changes.</param>
/// <param name="textboxs">An array of text fields to fill.</param>
private static void RedisOrSQLStorage2(Storage2Context context, int userId, Services services, Logging logging, View.View view, System.Windows.Controls.TextBox[] textboxs)
{
IDatabase db = null;
if (services.RedisIsStarted)
{
using (var redisClient = ConnectionMultiplexer.Connect("localhost"))
{
db = redisClient.GetDatabase();
string value = db.StringGet($"user:{userId}");
if (string.IsNullOrEmpty(value))
{
var queryUserStorage = context.User.Where(x => x.Id == userId);
GetDataFromSQL(queryUserStorage, db, true, logging, view, textboxs);
}
else
{
GetDataFromRedis(value, view, textboxs);
}
}
}
else
{
var queryUserStorage = context.User.Where(x => x.Id == userId);
GetDataFromSQL(queryUserStorage, db, false, logging, view, textboxs);
}
}