コード例 #1
0
        /// <summary>
        /// Raw SQL Select Implementation with Parameters for Prepared Query
        /// </summary>
        /// <param name="SQLCommand">Command for reading</param>
        /// <param name="parameters">Collection of Parameters for Single/Multiple Read</param>
        /// <param name="Reader">Reader Method</param>
        /// <param name="Isolation">Transaction Isolation</param>
        protected override void ExecuteSelectImpl(string SQLCommand, IEnumerable <IEnumerable <QueryParameter> > parameters, Action <IDataReader> Reader, IsolationLevel Isolation)
        {
            if (log.IsDebugEnabled)
            {
                log.DebugFormat("ExecuteSelectImpl: {0}", SQLCommand);
            }

            var repeat  = false;
            var current = 0;

            do
            {
                repeat = false;

                using (var conn = new SQLiteConnection(ConnectionString))
                {
                    using (var cmd = new SQLiteCommand(SQLCommand, conn))
                    {
                        try
                        {
                            conn.Open();
                            cmd.Prepare();

                            long start = (DateTime.UtcNow.Ticks / 10000);

                            // Register Parameter
                            foreach (var keys in parameters.First().Select(kv => kv.Name))
                            {
                                cmd.Parameters.Add(new SQLiteParameter(keys));
                            }

                            foreach (var parameter in parameters.Skip(current))
                            {
                                FillSQLParameter(parameter, cmd.Parameters);

                                using (var reader = cmd.ExecuteReader())
                                {
                                    try
                                    {
                                        Reader(reader);
                                    }
                                    catch (Exception es)
                                    {
                                        if (log.IsWarnEnabled)
                                        {
                                            log.WarnFormat("ExecuteSelectImpl: Exception in Select Callback : {2}{0}{2}{1}", es, Environment.StackTrace, Environment.NewLine);
                                        }
                                    }
                                    finally
                                    {
                                        reader.Close();
                                    }
                                }
                                current++;
                            }

                            if (log.IsDebugEnabled)
                            {
                                log.DebugFormat("ExecuteSelectImpl: SQL Select ({0}) exec time {1}ms", Isolation, ((DateTime.UtcNow.Ticks / 10000) - start));
                            }
                            else if (log.IsWarnEnabled && (DateTime.UtcNow.Ticks / 10000) - start > 500)
                            {
                                log.WarnFormat("ExecuteSelectImpl: SQL Select ({0}) took {1}ms!\n{2}", Isolation, ((DateTime.UtcNow.Ticks / 10000) - start), SQLCommand);
                            }
                        }
                        catch (Exception e)
                        {
                            if (!HandleException(e))
                            {
                                if (log.IsErrorEnabled)
                                {
                                    log.ErrorFormat("ExecuteSelectImpl: UnHandled Exception for Select Query \"{0}\"\n{1}", SQLCommand, e);
                                }

                                throw;
                            }
                            repeat = true;
                        }
                        finally
                        {
                            conn.Close();
                        }
                    }
                }
            }while (repeat);
        }
コード例 #2
0
		/// <summary>
		/// Raw SQL Select Implementation with Parameters for Prepared Query
		/// </summary>
		/// <param name="SQLCommand">Command for reading</param>
		/// <param name="parameters">Collection of Parameters for Single/Multiple Read</param>
		/// <param name="Reader">Reader Method</param>
		/// <param name="Isolation">Transaction Isolation</param>
		protected override void ExecuteSelectImpl(string SQLCommand, IEnumerable<IEnumerable<QueryParameter>> parameters, Action<IDataReader> Reader, IsolationLevel Isolation)
		{
			if (log.IsDebugEnabled)
				log.DebugFormat("ExecuteSelectImpl: {0}", SQLCommand);

			var repeat = false;
			var current = 0;
			do
			{
				repeat = false;

				using (var conn = new SQLiteConnection(ConnectionString))
				{
				    using (var cmd = new SQLiteCommand(SQLCommand, conn))
					{
						try
						{
					    	conn.Open();
					    	cmd.Prepare();
					    	
					    	long start = (DateTime.UtcNow.Ticks / 10000);
					    	
					    	// Register Parameter
					    	foreach(var keys in parameters.First().Select(kv => kv.Name))
					    		cmd.Parameters.Add(new SQLiteParameter(keys));
					    	
					    	foreach(var parameter in parameters.Skip(current))
					    	{
					    		FillSQLParameter(parameter, cmd.Parameters);
					    	
							    using (var reader = cmd.ExecuteReader())
							    {
							    	try
							    	{
							        	Reader(reader);
							    	}
							    	catch (Exception es)
							    	{
							    		if(log.IsWarnEnabled)
							    			log.WarnFormat("ExecuteSelectImpl: Exception in Select Callback : {2}{0}{2}{1}", es, Environment.StackTrace, Environment.NewLine);
							    	}
							    	finally
							    	{
							    		reader.Close();
							    	}
							    }
							    current++;
					    	}
					    
						    if (log.IsDebugEnabled)
								log.DebugFormat("ExecuteSelectImpl: SQL Select ({0}) exec time {1}ms", Isolation, ((DateTime.UtcNow.Ticks / 10000) - start));
							else if (log.IsWarnEnabled && (DateTime.UtcNow.Ticks / 10000) - start > 500)
								log.WarnFormat("ExecuteSelectImpl: SQL Select ({0}) took {1}ms!\n{2}", Isolation, ((DateTime.UtcNow.Ticks / 10000) - start), SQLCommand);
						
						}
						catch (Exception e)
						{
							if (!HandleException(e))
							{
								if (log.IsErrorEnabled)
									log.ErrorFormat("ExecuteSelectImpl: UnHandled Exception for Select Query \"{0}\"\n{1}", SQLCommand, e);
								
								throw;
							}
							repeat = true;
						}
						finally
						{
							conn.Close();
						}
				    }
				}
			}
			while (repeat);
		}