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* Added reconnect support for MySQL Data interfaces if they time out. (Grid/User modes only now, Log todo)

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* Begun writing support for supporting the "Start" region login parameter.
This commit is contained in:
Adam Frisby
2007-05-30 02:36:48 +00:00
parent e9aa24feff
commit b0de1b93f9
4 changed files with 85 additions and 6 deletions
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68
OpenGridServices/OpenGrid.Framework.Data.MySQL/MySQLManager.cs
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@@ -16,6 +16,7 @@ namespace OpenGrid.Framework.Data.MySQL
class MySQLManager
{
IDbConnection dbcon;
string connectionString;
/// <summary>
/// Initialises and creates a new MySQL connection and maintains it.
@@ -29,7 +30,7 @@ namespace OpenGrid.Framework.Data.MySQL
{
try
{
string connectionString = "Server=" + hostname + ";Port=" + port + ";Database=" + database + ";User ID=" + username + ";Password=" + password + ";Pooling=" + cpooling + ";";
connectionString = "Server=" + hostname + ";Port=" + port + ";Database=" + database + ";User ID=" + username + ";Password=" + password + ";Pooling=" + cpooling + ";";
dbcon = new MySqlConnection(connectionString);
dbcon.Open();
@@ -51,6 +52,28 @@ namespace OpenGrid.Framework.Data.MySQL
dbcon = null;
}
/// <summary>
/// Reconnects to the database
/// </summary>
public void Reconnect()
{
lock (dbcon)
{
try
{
// Close the DB connection
dbcon.Close();
// Try reopen it
dbcon = new MySqlConnection(connectionString);
dbcon.Open();
}
catch (Exception e)
{
Console.WriteLine("Unable to reconnect to database " + e.ToString());
}
}
}
/// <summary>
/// Runs a query with protection against SQL Injection by using parameterised input.
/// </summary>
@@ -70,10 +93,47 @@ namespace OpenGrid.Framework.Data.MySQL
return (IDbCommand)dbcommand;
}
catch (Exception e)
catch
{
Console.WriteLine("Failed during Query generation: " + e.ToString());
return null;
lock (dbcon)
{
// Close the DB connection
try
{
dbcon.Close();
}
catch { }
// Try reopen it
try
{
dbcon = new MySqlConnection(connectionString);
dbcon.Open();
}
catch (Exception e)
{
Console.WriteLine("Unable to reconnect to database " + e.ToString());
}
// Run the query again
try
{
MySqlCommand dbcommand = (MySqlCommand)dbcon.CreateCommand();
dbcommand.CommandText = sql;
foreach (KeyValuePair<string, string> param in parameters)
{
dbcommand.Parameters.Add(param.Key, param.Value);
}
return (IDbCommand)dbcommand;
}
catch (Exception e)
{
// Return null if it fails.
Console.WriteLine("Failed during Query generation: " + e.ToString());
return null;
}
}
}
}