Initial Commit

MarketData/MarketDataLib/DataAccess/CashDA.cs

@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using MySql.Data.MySqlClient;
+using MarketData.MarketDataModel;
+using MarketData.Utils;
+
+namespace MarketData.DataAccess
+{
+  public class CashDA
+  {
+    private CashDA()
+    {
+    }
+    public static bool AddTransaction(CashTransaction cashTransaction)
+    {
+      MySqlConnection sqlConnection = null;
+      MySqlTransaction sqlTransaction = null;
+			MySqlCommand sqlCommand=null;
+      String strQuery = null;
+
+      try
+      {
+        if (null == cashTransaction) return false;
+        double accountBalance=GetBalance(cashTransaction.Account);
+        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("portfolio_data"));
+        sqlTransaction = sqlConnection.BeginTransaction();
+        StringBuilder sb = new StringBuilder();
+        cashTransaction.Balance=accountBalance+(cashTransaction.Credit-cashTransaction.Debit);
+        sb.Append("insert into cash(account,date,description,credit,debit,balance) values(");
+        sb.Append(SqlUtils.AddQuotes(cashTransaction.Account)).Append(",");
+        sb.Append(SqlUtils.AddQuotes(Utility.DateTimeToStringYYYYHMMHDD(cashTransaction.TransactionDate))).Append(",");
+        sb.Append(SqlUtils.AddQuotes(cashTransaction.Description)).Append(",");
+        sb.Append(cashTransaction.Credit).Append(",");
+        sb.Append(cashTransaction.Debit).Append(",");
+        sb.Append(accountBalance+cashTransaction.Credit-cashTransaction.Debit).Append(")");
+        strQuery = sb.ToString();
+        sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
+        sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
+        sqlCommand.ExecuteNonQuery();
+        sqlTransaction.Commit();
+        return true;
+      }
+      catch (Exception exception)
+      {
+        MDTrace.WriteLine(LogLevel.DEBUG,exception);
+        return false;
+      }
+      finally
+      {
+				if(null!=sqlCommand)sqlCommand.Dispose();
+        if (null != sqlConnection) sqlConnection.Close();
+        if (null != sqlTransaction) sqlTransaction.Dispose();
+      }
+    }
+// get balance for specific account
+    public static double GetBalance(String account)
+    {
+      MySqlConnection sqlConnection = null;
+      MySqlDataReader sqlDataReader = null;
+			MySqlCommand sqlCommand=null;
+      String strQuery = null;
+
+      try
+      {
+        StringBuilder sb = new StringBuilder();
+        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("portfolio_data"));
+        sb.Append("select balance from cash where account='").Append(account).Append("' and transaction_id=(select max(transaction_id) from cash where account='").Append(account).Append("')");
+        strQuery = sb.ToString();
+        sqlCommand = new MySqlCommand(strQuery, sqlConnection);
+        sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
+        sqlDataReader = sqlCommand.ExecuteReader();
+        if (!sqlDataReader.Read()) return double.NaN;
+        double accountBalance = sqlDataReader.GetDouble(0);
+        return accountBalance;
+      }
+      catch (Exception exception)
+      {
+        MDTrace.WriteLine(LogLevel.DEBUG,exception);
+        return double.NaN;
+      }
+      finally
+      {
+				if(null!=sqlCommand)sqlCommand.Dispose();
+        if (null != sqlDataReader) sqlDataReader.Close();
+        if (null != sqlConnection) sqlConnection.Close();
+      }
+    }
+// get latest balance for all accounts
+    public static double GetBalance()
+    {
+      MySqlConnection sqlConnection = null;
+      MySqlDataReader sqlDataReader = null;
+      MySqlCommand sqlCommand=null;
+      String strQuery = null;
+
+      try
+      {
+        StringBuilder sb = new StringBuilder();
+        sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("portfolio_data"));
+//        sb.Append("select sum(a.balance) from (select account,balance,date from cash b group by account desc) a");
+        sb.Append("select sum(balance) from cash");
+        strQuery = sb.ToString();
+        sqlCommand = new MySqlCommand(strQuery, sqlConnection);
+        sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
+        sqlDataReader = sqlCommand.ExecuteReader();
+        if (!sqlDataReader.Read()) return double.NaN;
+        double accountBalance = sqlDataReader.GetDouble(0);
+        return accountBalance;
+      }
+      catch (Exception exception)
+      {
+        MDTrace.WriteLine(LogLevel.DEBUG,exception);
+        return double.NaN;
+      }
+      finally
+      {
+        if(null!=sqlCommand)sqlCommand.Dispose();
+        if (null != sqlDataReader) sqlDataReader.Close();
+        if (null != sqlConnection) sqlConnection.Close();
+      }
+    }
+  }
+}