trunk/AnywhereTS.DBSupport/DBConnector.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using System.Data.Common;
using System.Data;
using System.Text.RegularExpressions;
using System.IO;


namespace AnywhereTS.DBSupport
{
    public interface IDBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter> : IDisposable
        where DBParameter : DbParameter, new()
        where DBCommand : DbCommand, new()
        where DBConnection : DbConnection, new()
        where DBDataAdapter : DbDataAdapter, new()
    {
        bool ConnectionIsOpen { get; }
        DBConnection CreateConnection(out Exception ErrorInfo);
        void OpenConnection(out Exception ErrorInfo);
        void CloseConnection(out Exception ErrorInfo);

        DbDataReader ExecuteQuery(string command, List<DBParameter> Params, out Exception ErrorInfo);
        void ExecuteNonQuery(string command, List<DBParameter> Params, out Exception ErrorInfo);
        List<string> ExecuteColumnNamesReader(string command, List<DBParameter> Params, out Exception ErrorInfo);

        //DBCommand CreateCommandInstance(string command, List<DBParameter> Params, out Exception ErrorInfo);
        bool RunScript(string strFile, out Exception ErrorInfo);
    }
    public abstract class DBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter> :
        IDBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter>
        where DBParameter : DbParameter, new()
        where DBCommand : DbCommand, new()
        where DBConnection : DbConnection, new()
        where DBDataAdapter : DbDataAdapter, new()
    {

        public DBConnector(string Server, string Instance, string Database)
        {
            DBServerAddress = Server;
            DBServerInstance = Instance;
            DBDatabase = Database;
            using (log4net.NDC.Push(string.Format("[Server={0}] [Instance={1}] [Database={2}]", Server, Instance, Database)))
            {
                Logging.DatabaseLog.Debug("Creating DBConnector instance");
            }
        }

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

        #region IDisposable Members
        public virtual void Dispose()
        {
            try
            {
                Exception ErrorInfo;
                if (this.ConnectionIsOpen)
                    CloseConnection(out ErrorInfo);
            }
            catch
            {
            }
        }
        #endregion
    }
}
1	william	84	using System;
2			using System.Collections.Generic;
3			using System.Text;
4			using System.Data.SqlClient;
5			using System.Data.Common;
6			using System.Data;
7	william	87	using System.Text.RegularExpressions;
8	william	123	using System.IO;
9	william	84
10	william	123
11	william	84	namespace AnywhereTS.DBSupport
12			{
13			public interface IDBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter> : IDisposable
14			where DBParameter : DbParameter, new()
15			where DBCommand : DbCommand, new()
16			where DBConnection : DbConnection, new()
17			where DBDataAdapter : DbDataAdapter, new()
18			{
19			bool ConnectionIsOpen { get; }
20	william	131	DBConnection CreateConnection(out Exception ErrorInfo);
21	william	84	void OpenConnection(out Exception ErrorInfo);
22			void CloseConnection(out Exception ErrorInfo);
23
24			DbDataReader ExecuteQuery(string command, List<DBParameter> Params, out Exception ErrorInfo);
25			void ExecuteNonQuery(string command, List<DBParameter> Params, out Exception ErrorInfo);
26			List<string> ExecuteColumnNamesReader(string command, List<DBParameter> Params, out Exception ErrorInfo);
27	william	87
28	william	131	//DBCommand CreateCommandInstance(string command, List<DBParameter> Params, out Exception ErrorInfo);
29	william	89	bool RunScript(string strFile, out Exception ErrorInfo);
30	william	84	}
31			public abstract class DBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter> :
32			IDBConnector<DBParameter, DBCommand, DBConnection, DBDataAdapter>
33			where DBParameter : DbParameter, new()
34			where DBCommand : DbCommand, new()
35			where DBConnection : DbConnection, new()
36			where DBDataAdapter : DbDataAdapter, new()
37			{
38	william	85
39	william	116	public DBConnector(string Server, string Instance, string Database)
40	william	85	{
41	william	116	DBServerAddress = Server;
42	william	89	DBServerInstance = Instance;
43			DBDatabase = Database;
44	william	116	using (log4net.NDC.Push(string.Format("[Server={0}] [Instance={1}] [Database={2}]", Server, Instance, Database)))
45			{
46			Logging.DatabaseLog.Debug("Creating DBConnector instance");
47			}
48	william	85	}
49
50	william	89	public static string GetConnectionString()
51			{
52	william	119	return string.Format(@"Data Source={0}\{1};Database={2};Integrated Security=SSPI", DBServerAddress, DBServerInstance, DBDatabase);
53	william	89	}
54	william	84	protected DBConnection connection;
55	william	89	#region DBServerAddress, DBServerInstance, DBDatabase
56			internal static string DBServerAddress = "";
57			internal static string DBServerInstance = "";
58			internal static string DBDatabase = "";
59			#endregion
60			#region private string SafeSqlLiteral(string inputSQL)
61	william	84	private string SafeSqlLiteral(string inputSQL) { return inputSQL.Replace("'", "''"); }
62	william	89	#endregion
63	william	84	#region IDBConnector members
64	william	89	#region public virtual bool ConnectionIsOpen
65			public virtual bool ConnectionIsOpen { get; protected set; }
66			#endregion
67			#region public virtual DBCommand CreateCommandInstance(string command, List<DBParameter> Params, out Exception ErrorInfo)
68	william	131	//public virtual DBCommand CreateCommandInstance(string command, List<DBParameter> Params, out Exception ErrorInfo)
69			//{
70			// ErrorInfo = null;
71			// try
72			// {
73			// command = this.SafeSqlLiteral(command);
74			// DBCommand sqlComm = new DBCommand();
75			// sqlComm.CommandText = command;
76			// sqlComm.Connection = connection;
77			// foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); }
78			// return sqlComm;
79			// }
80			// catch (SqlException ex)
81			// {
82			// SqlException e = (ex.GetBaseException() as SqlException);
83			// 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())))
84			// {
85			// Logging.DatabaseLog.Error(string.Format("Failed to create command instance using command: {0}", command));
86			// }
87			// ErrorInfo = ex; throw ErrorInfo;
88			// }
89			// catch (Exception ex)
90			// {
91			// Exception e = ex.GetBaseException();
92			// using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", e.GetType().Name, e.Message, System.Environment.NewLine, e.ToString())))
93			// {
94			// Logging.DatabaseLog.Error(string.Format("Failed to create command instance using command: {0}", command));
95			// }
96			// ErrorInfo = ex; throw ErrorInfo;
97			// }
98			//}
99	william	89	#endregion
100	william	131	#region public virtual DBConnection CreateConnection(out Exception ErrorInfo)
101			public virtual DBConnection CreateConnection(out Exception ErrorInfo)
102	william	84	{
103			ErrorInfo = null;
104	william	121	string connetionString = string.Empty;
105	william	84	try
106	william	121	{
107	william	89	connetionString = GetConnectionString();
108	william	121	using (log4net.NDC.Push(string.Format("connetionString={0}", connetionString)))
109			{
110			Logging.DatabaseLog.Debug("Creating Connection");
111			connection = new DBConnection();
112			connection.ConnectionString = connetionString;
113			Logging.DatabaseLog.Debug("Created Connection");
114			}
115	william	131	return this.connection;
116	william	84	}
117	william	87	catch (SqlException ex)
118			{
119			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())))
120			{
121			Logging.DatabaseLog.Error(string.Format("Failed to create connection to {0} Database", DBDatabase));
122			}
123			ErrorInfo = ex; throw ErrorInfo;
124			}
125			catch (Exception ex)
126			{
127			using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString())))
128			{
129			Logging.DatabaseLog.Error(string.Format("Failed to create connection to {0} Database", DBDatabase));
130			}
131			ErrorInfo = ex; throw ErrorInfo;
132	william	89	}
133	william	84	}
134	william	89	#endregion
135			#region public virtual void OpenConnection(out Exception ErrorInfo)
136	william	84	public virtual void OpenConnection(out Exception ErrorInfo)
137			{
138			ErrorInfo = null;
139	william	121	string connetionString = string.Empty;
140	william	84	try
141			{
142			//this.CloseConnection(out ErrorInfo);
143	william	121	connetionString = GetConnectionString();
144			using (log4net.NDC.Push(string.Format("connectionString={0}", connetionString)))
145			{
146			Logging.DatabaseLog.Debug("Opening Connection");
147			connection.Open();
148			this.ConnectionIsOpen = true;
149			Logging.DatabaseLog.Debug("Opened Connection");
150			}
151	william	84	}
152			//catch (SqlException ex) { Console.WriteLine(ex.ToString()); ErrorInfo = ex; throw ErrorInfo;}
153	william	87	catch (SqlException ex)
154			{
155			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())))
156			{
157			Logging.DatabaseLog.Error(string.Format("Failed to open connection to {0} Database", DBDatabase));
158			}
159			ErrorInfo = ex; throw ErrorInfo;
160			}
161			catch (Exception ex)
162			{
163			using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString())))
164			{
165			Logging.DatabaseLog.Error(string.Format("Failed to open connection to {0} Database", DBDatabase));
166			}
167			ErrorInfo = ex; throw ErrorInfo;
168	william	89	}
169	william	84	}
170	william	89	#endregion
171			#region public virtual void CloseConnection(out Exception ErrorInfo)
172	william	84	public virtual void CloseConnection(out Exception ErrorInfo)
173			{
174			ErrorInfo = null;
175			try
176			{
177			if (this.ConnectionIsOpen)
178			connection.Close();
179			}
180	william	87	catch (SqlException ex)
181			{
182			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())))
183			{
184			Logging.DatabaseLog.Error(string.Format("Failed to close connection to {0} Database", DBDatabase));
185			}
186			ErrorInfo = ex; throw ErrorInfo;
187			}
188			catch (Exception ex)
189			{
190			using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString())))
191			{
192			Logging.DatabaseLog.Error(string.Format("Failed to close connection to {0} Database", DBDatabase));
193			}
194			ErrorInfo = ex; throw ErrorInfo;
195	william	89	}
196	william	84	}
197	william	89	#endregion
198			#region public virtual DbDataReader ExecuteQuery(string command, List<DBParameter> Params, out Exception ErrorInfo)
199	william	84	public virtual DbDataReader ExecuteQuery(string command, List<DBParameter> Params, out Exception ErrorInfo)
200			{
201			ErrorInfo = null;
202			if (!this.ConnectionIsOpen) { ErrorInfo = new Exception("Cannot execute query.", new Exception("A connection to the database has not, yet, been established.")); }
203			try
204			{
205			command = this.SafeSqlLiteral(command);
206			DBCommand sqlComm = new DBCommand();
207			sqlComm.CommandText = command;
208			sqlComm.Connection = connection;
209			foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); }
210			DbDataReader r = sqlComm.ExecuteReader();
211			return r;
212			}
213	william	87	catch (SqlException ex)
214			{
215			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())))
216			{
217			Logging.DatabaseLog.Error(string.Format("Failed to execute query: {0}", command));
218			}
219			ErrorInfo = ex; throw ErrorInfo;
220			}
221			catch (Exception ex)
222			{
223			using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString())))
224			{
225			Logging.DatabaseLog.Error(string.Format("Failed to execute querey: {0}", command));
226			}
227			ErrorInfo = ex; throw ErrorInfo;
228	william	89	}
229	william	84	}
230	william	89	#endregion
231			#region public virtual void ExecuteNonQuery(string command, List<DBParameter> Params, out Exception ErrorInfo)
232	william	84	public virtual void ExecuteNonQuery(string command, List<DBParameter> Params, out Exception ErrorInfo)
233			{
234			ErrorInfo = null;
235			if (!this.ConnectionIsOpen) { ErrorInfo = new Exception("Cannot execute non-query.", new Exception("A connection to the database has not, yet, been established.")); }
236			try
237			{
238			command = this.SafeSqlLiteral(command);
239			DBCommand sqlComm = new DBCommand();
240			sqlComm.CommandText = command;
241			sqlComm.Connection = connection;
242			foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); }
243			sqlComm.ExecuteNonQuery();
244			}
245	william	87	catch (SqlException ex)
246			{
247			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())))
248			{
249			Logging.DatabaseLog.Error(string.Format("Failed to execute non querey: {0}", command));
250			}
251			ErrorInfo = ex; throw ErrorInfo;
252			}
253			catch (Exception ex)
254			{
255			using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString())))
256			{
257			Logging.DatabaseLog.Error(string.Format("Failed to execute non querey: {0}", command));
258			}
259			ErrorInfo = ex; throw ErrorInfo;
260	william	89	}
261	william	84	}
262	william	89	#endregion
263			#region public virtual List<string> ExecuteColumnNamesReader(string command, List<DBParameter> Params, out Exception ErrorInfo)
264	william	84	public virtual List<string> ExecuteColumnNamesReader(string command, List<DBParameter> Params, out Exception ErrorInfo)
265			{
266			ErrorInfo = null;
267			try
268			{
269			List<string> ColumnNames = new List<string>();
270			DBDataAdapter da = new DBDataAdapter();
271			command = this.SafeSqlLiteral(command);
272			DBCommand sqlComm = new DBCommand();
273			sqlComm.CommandText = command;
274			sqlComm.Connection = connection;
275			foreach (DBParameter p in Params) { sqlComm.Parameters.Add(p); }
276			da.SelectCommand = sqlComm;
277			DataTable dt = new DataTable();
278			da.Fill(dt);
279			DataRow row = dt.Rows[0];
280			for (int ordinal = 0; ordinal < dt.Columns.Count; ordinal++)
281			{
282			string value = row[ordinal].ToString();
283			string column_name = dt.Columns[ordinal].ColumnName;
284			ColumnNames.Add(column_name);
285			}
286			return ColumnNames;
287			}
288	william	87	catch (SqlException ex)
289			{
290			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())))
291			{
292			Logging.DatabaseLog.Error(string.Format("Failed to get colum names from reader: {0}", command));
293			}
294			ErrorInfo = ex; throw ErrorInfo;
295			}
296			catch (Exception ex)
297			{
298			using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", ex.GetType().Name, ex.Message, System.Environment.NewLine, ex.ToString())))
299			{
300			Logging.DatabaseLog.Error(string.Format("Failed to get colum names from reader: {0}", command));
301			}
302			ErrorInfo = ex; throw ErrorInfo;
303	william	89	}
304	william	84	}
305	william	89	#endregion
306			#region public string[] ParseScriptToCommands(string strScript)
307	william	123
308			protected abstract bool ClientRunScript(string strFile, out Exception ErrorInfo);
309	william	89	#endregion
310			#region public virtual bool RunScript(string strFile, out Exception ErrorInfo)
311	william	119	public bool RunScript(string strFile, out Exception ErrorInfo)
312	william	87	{
313			ErrorInfo = null;
314			try
315			{
316			if (this.ConnectionIsOpen)
317			{
318	william	123	if (!ClientRunScript(strFile, out ErrorInfo))
319	william	87	{
320	william	125	if(ErrorInfo != null)
321	william	124	throw ErrorInfo;
322	william	119	return false;
323	william	87	}
324			}
325			else
326			{
327	william	119	Logging.DatabaseLog.Fatal(string.Format("Failed to run script: [database connection is not open] {0}{1}", System.Environment.NewLine, strFile));
328	william	87	return false;
329			}
330			}
331			catch (SqlException ex)
332			{
333	william	128	SqlException e = (ex.GetBaseException() as SqlException);
334			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())))
335	william	87	{
336			Logging.DatabaseLog.Error(string.Format("Failed to run script: {0}{1}", System.Environment.NewLine, strFile));
337			}
338	william	128	ErrorInfo = ex; throw ErrorInfo;
339	william	87	}
340			catch (Exception ex)
341			{
342	william	128	Exception e = ex.GetBaseException();
343			using (log4net.NDC.Push(string.Format("{0}: MESSAGE={1}{2}Diagnostics:{2}{3}", e.GetType().Name, e.Message, System.Environment.NewLine, e.ToString())))
344	william	87	{
345			Logging.DatabaseLog.Error(string.Format("Failed to run script: {0}{1}", System.Environment.NewLine, strFile));
346			}
347	william	128	ErrorInfo = ex; throw ErrorInfo;
348	william	87	}
349			return false;
350			}
351	william	84	#endregion
352	william	89	#endregion
353	william	84
354			#region IDisposable Members
355			public virtual void Dispose()
356			{
357			try
358			{
359			Exception ErrorInfo;
360	william	131	if (this.ConnectionIsOpen)
361			CloseConnection(out ErrorInfo);
362	william	84	}
363			catch
364			{
365			}
366			}
367			#endregion
368			}
369			}