/// <summary>Gets the list of symbols from a server</summary>
/// <exception cref="Exception">Thrown when failed to retrieve symbols from a server</exception>
public IEnumerable <string> GetSymbols()
{
List <string> symbols = new List <string>();
try
{
SqlConnection conn = MbmSqlConnection.GetSqlConnection();
using (conn)
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "SELECT * From symbolsView";
SqlDataReader reader = cmd.ExecuteReader();
symbols.Add("all symbols");
while (reader.Read())
{
symbols.Add(reader["stock_symbol"].ToString());
}
}
}
}
catch (Exception ex)
{
throw new Exception("Failed to retrieve filter symbols server", ex);
}
return(symbols);
}
/// <summary>Gets a stock entry from a server</summary>
/// <exception cref="Exception">Thrown when failed to get stock entry from database</exception>
public StockEntry GetStockEntry(uint id)
{
try
{
StockEntry stockEntry = new StockEntry();
SqlConnection conn = MbmSqlConnection.GetSqlConnection();
using (conn)
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "NyseGetByID";
cmd.CommandType = CommandType.StoredProcedure;
SqlParameter stock_id = new SqlParameter("id", SqlDbType.BigInt);
stock_id.Value = id;
cmd.Parameters.Add(stock_id);
SqlDataReader reader = cmd.ExecuteReader();
if (reader.Read())
{
stockEntry = new StockEntry(reader);
}
}
}
return(stockEntry);
}
catch (Exception ex)
{
throw new Exception("Failed to get stock entry from database", ex);
}
}
/// <summary>Gets the min and max values from a server</summary>
/// <exception cref="Exception">Thrown when failed to retrieve min and max values from a server</exception>
public Filter GetMinMaxValues()
{
Filter filter = new Filter();
try
{
SqlConnection conn = MbmSqlConnection.GetSqlConnection();
using (conn)
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "MinMaxValues";
cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader reader = cmd.ExecuteReader();
filter = new Filter(reader);
}
}
}
catch (Exception ex)
{
throw new Exception("Failed to retrieve filter values server", ex);
}
return(filter);
}
/// <summary>Gets most recent server statistics from database</summary>
/// <exception cref="Exception">Thrown when failed to get server statistics</exception>
public ServerStat GetMostRecent()
{
try
{
ServerStat serverStat = new ServerStat();
SqlConnection Connection = MbmSqlConnection.GetSqlConnection();
using (Connection)
{
using (SqlCommand cmd = Connection.CreateCommand())
{
cmd.CommandText = @"spServerStats";
cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader reader = cmd.ExecuteReader();
reader.Read();
serverStat = new ServerStat(reader);
}
}
return(serverStat);
}
catch (Exception ex)
{
throw new Exception("Failed to get most recent server statistics", ex);
}
}
/// <summary>Gets a list of server statistics from database</summary>
/// <exception cref="Exception">Thrown when failed to get server statistics</exception>
public IEnumerable <ServerStat> GetServerStats()
{
try
{
List <ServerStat> serverStats = new List <ServerStat>();
SqlConnection Connection = MbmSqlConnection.GetSqlConnection();
using (Connection)
{
using (SqlCommand cmd = Connection.CreateCommand())
{
cmd.CommandText = @"spServerStats";
cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
ServerStat serverStat = new ServerStat(reader);
serverStats.Add(serverStat);
}
}
}
return(serverStats);
}
catch (Exception ex)
{
throw new Exception("Failed to get server statistics", ex);
}
}
/// <summary>Gets a list of stock entries from a server</summary>
/// <exception cref="Exception">Thrown when failed to get stock entries to database</exception>
public IEnumerable <StockEntry> GetStockEntries(Filter filter)
{
try
{
List <StockEntry> stockEntries = new List <StockEntry>();
SqlConnection conn = MbmSqlConnection.GetSqlConnection();
using (conn)
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"GetStockEntriesFilter";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("DateStart", filter.DateStart);
cmd.Parameters.AddWithValue("DateEnd", filter.DateEnd);
cmd.Parameters.AddWithValue("Symbol", filter.SelectedSymbol);
cmd.Parameters.AddWithValue("VolumeStart", int.Parse(filter.VolumeMin.ToString()));
cmd.Parameters.AddWithValue("VolumeEnd", int.Parse(filter.VolumeMax.ToString()));
cmd.Parameters.AddWithValue("OpenStart", filter.OpenMin.Amount);
cmd.Parameters.AddWithValue("OpenEnd", filter.OpenMax.Amount);
cmd.Parameters.AddWithValue("CloseStart", filter.CloseMin.Amount);
cmd.Parameters.AddWithValue("CloseEnd", filter.CloseMax.Amount);
cmd.Parameters.AddWithValue("CloseAdjustedStart", filter.CloseAdjustedMin.Amount);
cmd.Parameters.AddWithValue("CloseAdjustedEnd", filter.CloseAdjustedMax.Amount);
cmd.Parameters.AddWithValue("HighStart", filter.HighMin.Amount);
cmd.Parameters.AddWithValue("HighEnd", filter.HighMax.Amount);
cmd.Parameters.AddWithValue("LowStart", filter.LowMin.Amount);
cmd.Parameters.AddWithValue("LowEnd", filter.LowMax.Amount);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
StockEntry stockEntry = new StockEntry(reader);
stockEntries.Add(stockEntry);
}
}
}
return(stockEntries);
}
catch (Exception ex)
{
throw new Exception("Failed to get stock entries from database", ex);
}
}
/// <summary>Updates values for a stock entry on a server</summary>
/// <exception cref="Exception">Thrown when failed to upadte stock entry in database</exception>
public string UpdateStockEntry(StockEntry stock)
{
try
{
SqlConnection conn = MbmSqlConnection.GetSqlConnection();
string serverResponse;
SqlParameter response = new SqlParameter();
using (conn)
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"spUpdateStockEntry";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("stock_id", int.Parse(stock.ID.ToString()));
cmd.Parameters.AddWithValue("exchange", stock.Exchange);
cmd.Parameters.AddWithValue("stock_symbol", stock.Symbol);
cmd.Parameters.AddWithValue("date", stock.Date);
cmd.Parameters.AddWithValue("stock_volume", int.Parse(stock.Volume.ToString()));
cmd.Parameters.AddWithValue("stock_price_open", stock.PriceOpen.Amount);
cmd.Parameters.AddWithValue("stock_price_close", stock.PriceClose.Amount);
cmd.Parameters.AddWithValue("stock_price_adj_close", stock.PriceCloseAdjusted.Amount);
cmd.Parameters.AddWithValue("stock_price_high", stock.PriceHigh.Amount);
cmd.Parameters.AddWithValue("stock_price_low", stock.PriceLow.Amount);
response = new SqlParameter("@response", SqlDbType.NVarChar, 1000);
response.Direction = ParameterDirection.Output;
cmd.Parameters.Add(response);
cmd.ExecuteNonQuery();
serverResponse = response.Value.ToString();
}
}
return(serverResponse);
}
catch (Exception ex)
{
throw new Exception("Failed to upadte stock entry in database", ex);
}
}
/// <summary>Deletes a stock entry from a server</summary>
/// <exception cref="Exception">Thrown when failed to add stock entry to database</exception>
public string DeleteStock(uint id)
{
try
{
int numberOfRowsAffected;
SqlConnection conn = MbmSqlConnection.GetSqlConnection();
string serverResponse;
using (conn)
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = @"spDeleteStockEntry";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("id", int.Parse(id.ToString()));
numberOfRowsAffected = cmd.ExecuteNonQuery();
if (numberOfRowsAffected == 1)
{
serverResponse = "Stock entry " + id + " deleted";
}
else
{
serverResponse = "Failed to delete because entry doesn't exist";
}
}
}
return(serverResponse);
}
catch (Exception ex)
{
throw new Exception("Failed to delete stock entry to database", ex);
}
}