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using System; |
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using System.Collections.Generic; |
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using System.Text; |
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using System.Data.SqlClient; |
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using System.Data.Common; |
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using System.Data; |
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using System.Text.RegularExpressions; |
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using System.IO; |
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|
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|
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namespace AnywhereTS.DBSupport |
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{ |
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public interface IDBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter> : IDisposable |
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where DBParameter : DbParameter, new() |
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where DBCommand : DbCommand, new() |
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where DBConnection : DbConnection, new() |
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where DBDataAdapter : DbDataAdapter, new() |
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{ |
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bool ConnectionIsOpen { get; } |
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void CreateConnection(out Exception ErrorInfo); |
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void OpenConnection(out Exception ErrorInfo); |
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void CloseConnection(out Exception ErrorInfo); |
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|
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DbDataReader ExecuteQuery(string command, List<DBParameter> Params, out Exception ErrorInfo); |
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void ExecuteNonQuery(string command, List<DBParameter> Params, out Exception ErrorInfo); |
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List<string> ExecuteColumnNamesReader(string command, List<DBParameter> Params, out Exception ErrorInfo); |
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|
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DBCommand CreateCommandInstance(string command, List<DBParameter> Params, out Exception ErrorInfo); |
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bool RunScript(string strFile, out Exception ErrorInfo); |
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} |
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public abstract class DBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter> : |
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IDBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter> |
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where DBParameter : DbParameter, new() |
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where DBCommand : DbCommand, new() |
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where DBConnection : DbConnection, new() |
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where DBDataAdapter : DbDataAdapter, new() |
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{ |
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|
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public DBConnector(string Server, string Instance, string Database) |
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{ |
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DBServerAddress = Server; |
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DBServerInstance = Instance; |
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DBDatabase = Database; |
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using (log4net.NDC.Push(string.Format("[Server={0}] [Instance={1}] [Database={2}]", Server, Instance, Database))) |
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{ |
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Logging.DatabaseLog.Debug("Creating DBConnector instance"); |
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} |
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} |
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|
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public static string GetConnectionString() |
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{ |
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return string.Format(@"Data Source={0}\{1};Database={2};Integrated Security=SSPI", DBServerAddress, DBServerInstance, DBDatabase); |
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} |
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protected DBConnection connection; |
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#region DBServerAddress, DBServerInstance, DBDatabase |
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internal static string DBServerAddress = ""; |
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internal static string DBServerInstance = ""; |
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internal static string DBDatabase = ""; |
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#endregion |
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#region private string SafeSqlLiteral(string inputSQL) |
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private string SafeSqlLiteral(string inputSQL) { return inputSQL.Replace("'", "''"); } |
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#endregion |
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#region IDBConnector members |
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#region public virtual bool ConnectionIsOpen |
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public virtual bool ConnectionIsOpen { get; protected set; } |
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#endregion |
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#region public virtual DBCommand CreateCommandInstance(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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public virtual DBCommand CreateCommandInstance(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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try |
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{ |
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command = this.SafeSqlLiteral(command); |
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DBCommand sqlComm = new DBCommand(); |
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sqlComm.CommandText = command; |
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sqlComm.Connection = connection; |
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foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); } |
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return sqlComm; |
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} |
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catch (SqlException ex) |
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{ |
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SqlException e = (ex.GetBaseException() as SqlException); |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", e.Number.ToString(), e.Message, System.Environment.NewLine, e.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to create command instance using command: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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Exception e = ex.GetBaseException(); |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", e.GetType().Name, e.Message, System.Environment.NewLine, e.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to create command instance using command: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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} |
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#endregion |
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#region public virtual void CreateConnection(out Exception ErrorInfo) |
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public virtual void CreateConnection(out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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string connetionString = string.Empty; |
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try |
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{ |
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connetionString = GetConnectionString(); |
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using (log4net.NDC.Push(string.Format("connetionString={0}", connetionString))) |
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{ |
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Logging.DatabaseLog.Debug("Creating Connection"); |
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connection = new DBConnection(); |
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connection.ConnectionString = connetionString; |
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Logging.DatabaseLog.Debug("Created Connection"); |
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} |
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} |
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catch (SqlException ex) |
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{ |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", ex.Number.ToString(), ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to create connection to {0} Database", DBDatabase)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to create connection to {0} Database", DBDatabase)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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} |
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#endregion |
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#region public virtual void OpenConnection(out Exception ErrorInfo) |
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public virtual void OpenConnection(out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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string connetionString = string.Empty; |
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try |
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{ |
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//this.CloseConnection(out ErrorInfo); |
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connetionString = GetConnectionString(); |
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using (log4net.NDC.Push(string.Format("connectionString={0}", connetionString))) |
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{ |
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Logging.DatabaseLog.Debug("Opening Connection"); |
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connection.Open(); |
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this.ConnectionIsOpen = true; |
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Logging.DatabaseLog.Debug("Opened Connection"); |
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} |
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} |
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//catch (SqlException ex) { Console.WriteLine(ex.ToString()); ErrorInfo = ex; throw ErrorInfo;} |
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catch (SqlException ex) |
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{ |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", ex.Number.ToString(), ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to open connection to {0} Database", DBDatabase)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to open connection to {0} Database", DBDatabase)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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} |
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#endregion |
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#region public virtual void CloseConnection(out Exception ErrorInfo) |
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public virtual void CloseConnection(out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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try |
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{ |
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if (this.ConnectionIsOpen) |
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connection.Close(); |
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} |
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catch (SqlException ex) |
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{ |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", ex.Number.ToString(), ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to close connection to {0} Database", DBDatabase)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to close connection to {0} Database", DBDatabase)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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} |
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#endregion |
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#region public virtual DbDataReader ExecuteQuery(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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public virtual DbDataReader ExecuteQuery(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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if (!this.ConnectionIsOpen) { ErrorInfo = new Exception("Cannot execute query.", new Exception("A connection to the database has not, yet, been established.")); } |
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try |
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{ |
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command = this.SafeSqlLiteral(command); |
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DBCommand sqlComm = new DBCommand(); |
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sqlComm.CommandText = command; |
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sqlComm.Connection = connection; |
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foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); } |
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DbDataReader r = sqlComm.ExecuteReader(); |
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return r; |
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} |
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catch (SqlException ex) |
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{ |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", ex.Number.ToString(), ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to execute query: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to execute querey: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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} |
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#endregion |
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#region public virtual void ExecuteNonQuery(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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public virtual void ExecuteNonQuery(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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if (!this.ConnectionIsOpen) { ErrorInfo = new Exception("Cannot execute non-query.", new Exception("A connection to the database has not, yet, been established.")); } |
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try |
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{ |
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command = this.SafeSqlLiteral(command); |
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DBCommand sqlComm = new DBCommand(); |
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sqlComm.CommandText = command; |
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sqlComm.Connection = connection; |
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foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); } |
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sqlComm.ExecuteNonQuery(); |
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} |
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catch (SqlException ex) |
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{ |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", ex.Number.ToString(), ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to execute non querey: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to execute non querey: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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} |
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#endregion |
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#region public virtual List<string> ExecuteColumnNamesReader(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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public virtual List<string> ExecuteColumnNamesReader(string command, List<DBParameter> Params, out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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try |
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{ |
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List<string> ColumnNames = new List<string>(); |
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DBDataAdapter da = new DBDataAdapter(); |
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command = this.SafeSqlLiteral(command); |
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DBCommand sqlComm = new DBCommand(); |
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sqlComm.CommandText = command; |
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sqlComm.Connection = connection; |
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foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); } |
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da.SelectCommand = sqlComm; |
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DataTable dt = new DataTable(); |
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da.Fill(dt); |
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DataRow row = dt.Rows[0]; |
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for (int ordinal = 0; ordinal < dt.Columns.Count; ordinal++) |
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{ |
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string value = row[ordinal].ToString(); |
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string column_name = dt.Columns[ordinal].ColumnName; |
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ColumnNames.Add(column_name); |
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} |
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return ColumnNames; |
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} |
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catch (SqlException ex) |
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{ |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", ex.Number.ToString(), ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to get colum names from reader: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to get colum names from reader: {0}", command)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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} |
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#endregion |
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#region public string[] ParseScriptToCommands(string strScript) |
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|
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protected abstract bool ClientRunScript(string strFile, out Exception ErrorInfo); |
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#endregion |
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#region public virtual bool RunScript(string strFile, out Exception ErrorInfo) |
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public bool RunScript(string strFile, out Exception ErrorInfo) |
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{ |
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ErrorInfo = null; |
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try |
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{ |
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if (this.ConnectionIsOpen) |
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{ |
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if (!ClientRunScript(strFile, out ErrorInfo)) |
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{ |
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if(ErrorInfo != null) |
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throw ErrorInfo; |
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return false; |
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} |
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} |
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else |
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{ |
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Logging.DatabaseLog.Fatal(string.Format("Failed to run script: [database connection is not open] {0}{1}", System.Environment.NewLine, strFile)); |
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return false; |
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} |
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} |
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catch (SqlException ex) |
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{ |
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SqlException e = (ex.GetBaseException() as SqlException); |
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using (log4net.NDC.Push(string.Format("SqlException: ID={0} MESSAGE={1}{2}Diagnostics:{2}{3}", e.Number.ToString(), e.Message, System.Environment.NewLine, e.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to run script: {0}{1}", System.Environment.NewLine, strFile)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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catch (Exception ex) |
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{ |
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Exception e = ex.GetBaseException(); |
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using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", e.GetType().Name, e.Message, System.Environment.NewLine, e.ToString()))) |
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{ |
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Logging.DatabaseLog.Error(string.Format("Failed to run script: {0}{1}", System.Environment.NewLine, strFile)); |
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} |
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ErrorInfo = ex; throw ErrorInfo; |
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} |
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return false; |
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} |
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#endregion |
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#endregion |
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|
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#region IDisposable Members |
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public virtual void Dispose() |
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{ |
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try |
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{ |
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Exception ErrorInfo; |
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CloseConnection(out ErrorInfo); |
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} |
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catch |
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{ |
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} |
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} |
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#endregion |
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} |
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} |
