/// <summary>
/// Initializes a new instance of the <see cref="MongoRepository"/> class.
/// </summary>
public MongoRepository()
{
var connectionStringElement = ConfigurationManager.ConnectionStrings[ConnectionStringKey];
Debug.Assert( connectionStringElement != null );
string connectionString = connectionStringElement.ConnectionString;
Debug.Assert( connectionString != null );
var url = MongoUrl.Create( connectionString );
_dataBaseName = url.DatabaseName;
_dataBaseCredentials = url.DefaultCredentials;
//InitializeClassMap();
_server = MongoServer.Create( connectionString );
_dataBase = GetDatabase();
// Create additional index
_dataBase.GetCollection( UserCollectionName )
.EnsureIndex( FavoriteMoviesMovieIdFieldName );
CurrentGeneratorOperationResult = new RepositoryOperationResult( NAOperationName );
}
private void RemoveAllUsersTask( RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.InProcess;
var allRegistredUsers = Membership.GetAllUsers();
state.MaxIteration = allRegistredUsers.Count + 1;
foreach (MembershipUser registredUser in allRegistredUsers)
{
Membership.DeleteUser( registredUser.UserName, true );
state.IterationDone++;
}
var users = _dataBase.GetCollection( UserCollectionName );
users.RemoveAll();
state.IterationDone++;
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
/// <summary>
/// Starts the task in background.
/// </summary>
/// <param name="action">The action.</param>
/// <param name="operationName">Name of the operation.</param>
/// <returns>Repository operation result object</returns>
private RepositoryOperationResult StartTask( Action<object> action, string operationName )
{
if ((_generateUserRecordsTask == null || _generateUserRecordsTask.IsCompleted) &&
(CurrentGeneratorOperationResult == null || CurrentGeneratorOperationResult.State != RepositoryOperationResultState.InProcess))
{
CurrentGeneratorOperationResult = new RepositoryOperationResult( operationName );
_generateUserRecordsTask =
Task.Factory.StartNew(
action,
CurrentGeneratorOperationResult,
TaskCreationOptions.LongRunning );
}
return CurrentGeneratorOperationResult;
}
private void RemoveAllActorsTask( RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.InProcess;
state.MaxIteration = 1;
var actorCollection = _dataBase.GetCollection( ActorCollectionName );
actorCollection.RemoveAll();
state.IterationDone++;
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
private void RemoveAllMoviesTask( RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.InProcess;
state.MaxIteration = 1;
var movieCollection = _dataBase.GetCollection( MovieCollectionName );
movieCollection.RemoveAll();
var userCollection = _dataBase.GetCollection( MovieCollectionName );
// Remove all favorite movies
userCollection.Update( Query.Null, Update.Unset( FavoriteMoviesFieldName ) );
// Remove all friends favorite movies
userCollection.Update( Query.Null, Update.Unset( FriendsFavoriteMoviesFieldName ) );
state.IterationDone++;
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
private void GenerateUserRecordsTask( long quantity, RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.MaxIteration = quantity;
state.State = RepositoryOperationResultState.InProcess;
var users = _dataBase.GetCollection( UserCollectionName );
var lastNumber = FindLastNumber( users, NameFieldName, _userRegex ) + 1;
var random = new Random();
for (int i = 0; i < quantity; i++, lastNumber++)
{
var userModel = new RegisterModel
{
UserName = string.Format( DefaultUserNameFormat, lastNumber ),
Age = random.Next( 91 ) + 10,
Gender = (Gender)(random.Next( 2 ) + 1),
Password = DefaultUserPassword,
};
userModel.Email = userModel.UserName + "@maildomain.com";
var userMembership = Membership.GetUser( userModel.UserName );
if (userMembership != null) Membership.DeleteUser( userModel.UserName );
RegisterUser( userModel, false );
state.IterationDone++;
}
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
/// <summary>
/// Generates the movie records. Task method.
/// </summary>
/// <param name="recordsNumber">The number of records.</param>
/// <param name="state">The repository operation result state object.</param>
private void GenerateMovieRecordsTask( long recordsNumber, RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.MaxIteration = recordsNumber;
state.State = RepositoryOperationResultState.InProcess;
var movieCollection = _dataBase.GetCollection( MovieCollectionName );
var actorCollection = _dataBase.GetCollection<Actor>( ActorCollectionName );
var actorIds = actorCollection
.FindAllAs<ActorId>()
.SetFields( Fields.Include( IdFieldName ) )
.ToList();
var lastNumber = FindLastNumber( movieCollection, NameFieldName, _movieRegex ) + 1;
for (int i = 0; i < recordsNumber; i++, lastNumber++)
{
var movie = new Movie
{
Id = ObjectId.GenerateNewId(),
Name = string.Format( DefaultMovieNameFormat, lastNumber ),
Roles = GenerateRoles( MinRolesNumber, MaxRolesNumber, actorIds, actorCollection ),
};
movieCollection.Insert( movie );
state.IterationDone++;
}
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
private void GenerateFriendshipRelationsTask( int minFriendsNumber, int maxFriendsNumber, RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.InProcess;
var userCollection = _dataBase.GetCollection<User>( UserCollectionName );
var userIds = userCollection
.FindAllAs<UserId>()
.SetFields( Fields.Include( IdFieldName ) )
.ToList();
state.MaxIteration = userIds.Count;
int deltaFriendsNumber = maxFriendsNumber - minFriendsNumber;
Random random = new Random();
int iUser = 0;
foreach (var userId in userIds)
{
User user = userCollection.FindOneById( userId.Id );
int friendsNumber = random.Next( deltaFriendsNumber + 1 ) + minFriendsNumber;
if (friendsNumber > userIds.Count - 1) friendsNumber = userIds.Count - 1;
int iFriend = user.Friends.Count;
while (iFriend < friendsNumber)
{
int jUser = random.Next( userIds.Count );
if (iUser == jUser) continue;
var friendId = userIds[jUser].Id;
if (user.Friends.Any( userFriend => userFriend.UserId.Equals( friendId ) )) continue;
User friend = userCollection.FindOneById( friendId );
Debug.Assert( friend != null );
MakeFriends( user, friend, userCollection );
iFriend++;
}
iUser++;
state.IterationDone++;
}
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
private void GenerateFavoriteMoviesTask( int minFavoriteMoviesNumber, int maxFavoriteMoviesNumber, RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.InProcess;
var userCollection = _dataBase.GetCollection<User>( UserCollectionName );
var userIds = userCollection
.FindAllAs<UserId>()
.SetFields( Fields.Include( IdFieldName ) )
.ToList();
var movieCollection = _dataBase.GetCollection<Movie>( MovieCollectionName );
var movieIds = movieCollection
.FindAllAs<MovieId>()
.SetFields( Fields.Include( IdFieldName ) )
.ToList();
state.MaxIteration = userIds.Count;
int deltaFavoriteMoviesNumber = maxFavoriteMoviesNumber - minFavoriteMoviesNumber;
Random random = new Random();
foreach (var userId in userIds)
{
User user = userCollection.FindOneById( userId.Id );
int moviesNumber = random.Next( deltaFavoriteMoviesNumber + 1 ) + minFavoriteMoviesNumber;
int iMovie = user.FavoriteMovies.Count;
while (iMovie < moviesNumber)
{
int jMovie = random.Next( movieIds.Count );
var movieId = movieIds[jMovie].Id;
if (user.FavoriteMovies.Any( m => m.MovieId.Equals( movieId ) )) continue;
Movie favoriteMovie = movieCollection.FindOneById( movieId );
Debug.Assert( favoriteMovie != null );
AddUserFavoriteMovie( user, favoriteMovie, userCollection );
iMovie++;
}
state.IterationDone++;
}
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
private void GenerateActorRecordsTask( long quantity, RepositoryOperationResult state )
{
state.StartDateTime = DateTime.Now;
state.MaxIteration = quantity;
state.State = RepositoryOperationResultState.InProcess;
var actorCollection = _dataBase.GetCollection( ActorCollectionName );
var lastNumber = FindLastNumber( actorCollection, NameFieldName, _actorRegex ) + 1;
for (int i = 0; i < quantity; i++, lastNumber++)
{
var actor = new Actor
{
Id = ObjectId.GenerateNewId(),
Name = string.Format( DefaultActorNameFormat, lastNumber ),
Biography = string.Format( DefaultActorBiographyTextFormat, lastNumber ),
};
actorCollection.Insert( actor );
state.IterationDone++;
}
state.EndDateTime = DateTime.Now;
state.State = RepositoryOperationResultState.Success;
}
