/
ExtensionMethods.cs
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/
ExtensionMethods.cs
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// Copyright (C) 2024, The Duplicati Team
// https://duplicati.com, hello@duplicati.com
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Duplicati.Library.Localization.Short;
namespace Duplicati.Library.Main.Database
{
public static class ExtensionMethods
{
/// <summary>
/// The tag used for logging
/// </summary>
private static readonly string LOGTAG = Logging.Log.LogTagFromType(typeof(ExtensionMethods));
public static void AddParameters(this System.Data.IDbCommand self, int count)
{
for(var i = 0; i < count; i++)
self.Parameters.Add(self.CreateParameter());
}
public static void AddParameter(this System.Data.IDbCommand self)
{
self.Parameters.Add(self.CreateParameter());
}
public static void AddParameter<T>(this System.Data.IDbCommand self, T value, string name = null)
{
var p = self.CreateParameter();
p.Value = value;
if (!string.IsNullOrEmpty(name))
p.ParameterName = name;
self.Parameters.Add(p);
}
public static void SetParameterValue<T>(this System.Data.IDbCommand self, int index, T value)
{
((System.Data.IDataParameter)self.Parameters[index]).Value = value;
}
public static string GetPrintableCommandText(this System.Data.IDbCommand self)
{
var txt = self.CommandText;
foreach(var p in self.Parameters.Cast<System.Data.IDbDataParameter>())
{
var ix = txt.IndexOf('?');
if (ix >= 0)
{
string v;
if (p.Value is string)
v = string.Format("\"{0}\"", p.Value);
else if (p.Value == null)
v = "NULL";
else
v = string.Format("{0}", p.Value);
txt = txt.Substring(0, ix) + v + txt.Substring(ix + 1);
}
}
return txt;
}
public static int ExecuteNonQuery(this System.Data.IDbCommand self, bool writeLog)
{
return ExecuteNonQuery(self, writeLog, null, null);
}
public static int ExecuteNonQuery(this System.Data.IDbCommand self, string cmd, params object[] values)
{
return ExecuteNonQuery(self, true, cmd, values);
}
public static int ExecuteNonQuery(this System.Data.IDbCommand self, bool writeLog, string cmd, params object[] values)
{
if (cmd != null)
self.CommandText = cmd;
if (values != null && values.Length > 0)
{
self.Parameters.Clear();
foreach (var n in values)
self.AddParameter(n);
}
using(writeLog ? new Logging.Timer(LOGTAG, "ExecuteNonQuery", string.Format("ExecuteNonQuery: {0}", self.GetPrintableCommandText())) : null)
return self.ExecuteNonQuery();
}
public static object ExecuteScalar(this System.Data.IDbCommand self, string cmd, params object[] values)
{
return ExecuteScalar(self, true, cmd, values);
}
public static object ExecuteScalar(this System.Data.IDbCommand self, bool writeLog, string cmd, params object[] values)
{
if (cmd != null)
self.CommandText = cmd;
if (values != null && values.Length > 0)
{
self.Parameters.Clear();
foreach (var n in values)
self.AddParameter(n);
}
using(writeLog ? new Logging.Timer(LOGTAG, "ExecuteScalar", string.Format("ExecuteScalar: {0}", self.GetPrintableCommandText())) : null)
return self.ExecuteScalar();
}
public static long ExecuteScalarInt64(this System.Data.IDbCommand self, bool writeLog, long defaultvalue = -1)
{
return ExecuteScalarInt64(self, writeLog, null, defaultvalue);
}
public static long ExecuteScalarInt64(this System.Data.IDbCommand self, long defaultvalue = -1)
{
return ExecuteScalarInt64(self, true, null, defaultvalue);
}
public static long ExecuteScalarInt64(this System.Data.IDbCommand self, bool writeLog, string cmd, long defaultvalue = -1)
{
return ExecuteScalarInt64(self, writeLog, cmd, defaultvalue, null);
}
public static long ExecuteScalarInt64(this System.Data.IDbCommand self, string cmd, long defaultvalue = -1)
{
return ExecuteScalarInt64(self, true, cmd, defaultvalue, null);
}
public static long ExecuteScalarInt64(this System.Data.IDbCommand self, string cmd, long defaultvalue, params object[] values)
{
return ExecuteScalarInt64(self, true, cmd, defaultvalue, values);
}
public static long ExecuteScalarInt64(this System.Data.IDbCommand self, bool writeLog, string cmd, long defaultvalue, params object[] values)
{
if (cmd != null)
self.CommandText = cmd;
if (values != null && values.Length > 0)
{
self.Parameters.Clear();
foreach (var n in values)
self.AddParameter(n);
}
using(writeLog ? new Logging.Timer(LOGTAG, "ExecuteScalarInt64", string.Format("ExecuteScalarInt64: {0}", self.GetPrintableCommandText())) : null)
using(var rd = self.ExecuteReader())
if (rd.Read())
return ConvertValueToInt64(rd, 0, defaultvalue);
return defaultvalue;
}
public static System.Data.IDataReader ExecuteReader(this System.Data.IDbCommand self, string cmd, params object[] values)
{
return ExecuteReader(self, true, cmd, values);
}
public static System.Data.IDataReader ExecuteReader(this System.Data.IDbCommand self, bool writeLog, string cmd, params object[] values)
{
if (cmd != null)
self.CommandText = cmd;
if (values != null && values.Length > 0)
{
self.Parameters.Clear();
foreach (var n in values)
self.AddParameter(n);
}
using(writeLog ? new Logging.Timer(LOGTAG, "ExecuteReader", string.Format("ExecuteReader: {0}", self.GetPrintableCommandText())) : null)
return self.ExecuteReader();
}
public static IEnumerable<System.Data.IDataReader> ExecuteReaderEnumerable(this System.Data.IDbCommand self, string cmd, params object[] values)
{
using(var rd = ExecuteReader(self, cmd, values))
while (rd.Read())
yield return rd;
}
public static string ConvertValueToString(this System.Data.IDataReader reader, int index)
{
var v = reader.GetValue(index);
if (v == null || v == DBNull.Value)
return null;
return v.ToString();
}
public static long ConvertValueToInt64(this System.Data.IDataReader reader, int index, long defaultvalue = -1)
{
try
{
if (!reader.IsDBNull(index))
return reader.GetInt64(index);
}
catch
{
}
return defaultvalue;
}
public static System.Data.IDbCommand CreateCommand(this System.Data.IDbConnection self, System.Data.IDbTransaction transaction)
{
var con = self.CreateCommand();
con.Transaction = transaction;
return con;
}
}
}