2024-11-13 18:18:28 +08:00

315 lines
14 KiB
C#

using FreeSql.Internal;
using FreeSql.Internal.Model;
using Newtonsoft.Json.Linq;
using Npgsql;
using NpgsqlTypes;
using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Globalization;
using System.Linq;
using System.Linq.Expressions;
using System.Net;
using System.Net.Http;
using System.Numerics;
using System.Text;
using System.Threading;
using FreeSql.QuestDb;
using System.Web;
using System.Threading.Tasks;
using Newtonsoft.Json;
using System.IO;
using CsvHelper;
namespace FreeSql.QuestDb
{
class QuestDbUtils : CommonUtils
{
string now_to_timezone;
public QuestDbUtils(IFreeSql orm) : base(orm)
{
var timeOffset = (int)DateTime.Now.Subtract(DateTime.UtcNow).TotalMinutes;
if (timeOffset == 0) now_to_timezone = "systimestamp()";
else
{
var absTimeOffset = Math.Abs(timeOffset);
now_to_timezone = $"to_timezone(systimestamp(),'{(timeOffset > 0 ? '+' : '-')}{(absTimeOffset / 60).ToString().PadLeft(2, '0')}:{(absTimeOffset % 60).ToString().PadLeft(2, '0')}')";
}
}
static Array getParamterArrayValue(Type arrayType, object value, object defaultValue)
{
var valueArr = value as Array;
var len = valueArr.GetLength(0);
var ret = Array.CreateInstance(arrayType, len);
for (var a = 0; a < len; a++)
{
var item = valueArr.GetValue(a);
ret.SetValue(item == null ? defaultValue : getParamterValue(item.GetType(), item, 1), a);
}
return ret;
}
static Dictionary<string, Func<object, object>> dicGetParamterValue =
new Dictionary<string, Func<object, object>>
{
{ typeof(JToken).FullName, a => string.Concat(a) },
{ typeof(JToken[]).FullName, a => getParamterArrayValue(typeof(string), a, null) },
{ typeof(JObject).FullName, a => string.Concat(a) },
{ typeof(JObject[]).FullName, a => getParamterArrayValue(typeof(string), a, null) },
{ typeof(JArray).FullName, a => string.Concat(a) },
{ typeof(JArray[]).FullName, a => getParamterArrayValue(typeof(string), a, null) },
{ typeof(uint).FullName, a => long.Parse(string.Concat(a)) },
{ typeof(uint[]).FullName, a => getParamterArrayValue(typeof(long), a, 0) },
{ typeof(uint?[]).FullName, a => getParamterArrayValue(typeof(long?), a, null) },
{ typeof(ulong).FullName, a => decimal.Parse(string.Concat(a)) },
{ typeof(ulong[]).FullName, a => getParamterArrayValue(typeof(decimal), a, 0) },
{ typeof(ulong?[]).FullName, a => getParamterArrayValue(typeof(decimal?), a, null) },
{ typeof(ushort).FullName, a => int.Parse(string.Concat(a)) },
{ typeof(ushort[]).FullName, a => getParamterArrayValue(typeof(int), a, 0) },
{ typeof(ushort?[]).FullName, a => getParamterArrayValue(typeof(int?), a, null) },
{ typeof(byte).FullName, a => short.Parse(string.Concat(a)) },
{ typeof(byte[]).FullName, a => getParamterArrayValue(typeof(short), a, 0) },
{ typeof(byte?[]).FullName, a => getParamterArrayValue(typeof(short?), a, null) },
{ typeof(sbyte).FullName, a => short.Parse(string.Concat(a)) },
{ typeof(sbyte[]).FullName, a => getParamterArrayValue(typeof(short), a, 0) },
{ typeof(sbyte?[]).FullName, a => getParamterArrayValue(typeof(short?), a, null) },
{ typeof(char).FullName, a => string.Concat(a).Replace('\0', ' ').ToCharArray().FirstOrDefault() },
{
typeof(BigInteger).FullName,
a => BigInteger.Parse(string.Concat(a), System.Globalization.NumberStyles.Any)
},
{ typeof(BigInteger[]).FullName, a => getParamterArrayValue(typeof(BigInteger), a, 0) },
{ typeof(BigInteger?[]).FullName, a => getParamterArrayValue(typeof(BigInteger?), a, null) },
{
typeof(NpgsqlPath).FullName, a =>
{
var path = (NpgsqlPath)a;
try
{
int count = path.Count;
return path;
}
catch
{
return new NpgsqlPath(new NpgsqlPoint(0, 0));
}
}
},
{
typeof(NpgsqlPath[]).FullName,
a => getParamterArrayValue(typeof(NpgsqlPath), a, new NpgsqlPath(new NpgsqlPoint(0, 0)))
},
{ typeof(NpgsqlPath?[]).FullName, a => getParamterArrayValue(typeof(NpgsqlPath?), a, null) },
{
typeof(NpgsqlPolygon).FullName, a =>
{
var polygon = (NpgsqlPolygon)a;
try
{
int count = polygon.Count;
return polygon;
}
catch
{
return new NpgsqlPolygon(new NpgsqlPoint(0, 0), new NpgsqlPoint(0, 0));
}
}
},
{
typeof(NpgsqlPolygon[]).FullName,
a => getParamterArrayValue(typeof(NpgsqlPolygon), a,
new NpgsqlPolygon(new NpgsqlPoint(0, 0), new NpgsqlPoint(0, 0)))
},
{ typeof(NpgsqlPolygon?[]).FullName, a => getParamterArrayValue(typeof(NpgsqlPolygon?), a, null) },
{
typeof((IPAddress Address, int Subnet)).FullName, a =>
{
var inet = ((IPAddress Address, int Subnet))a;
if (inet.Address == null) return (IPAddress.Any, inet.Subnet);
return inet;
}
},
{
typeof((IPAddress Address, int Subnet)[]).FullName,
a => getParamterArrayValue(typeof((IPAddress Address, int Subnet)), a, (IPAddress.Any, 0))
},
{
typeof((IPAddress Address, int Subnet)?[]).FullName,
a => getParamterArrayValue(typeof((IPAddress Address, int Subnet)?), a, null)
},
};
static object getParamterValue(Type type, object value, int level = 0)
{
if (type.FullName == "System.Byte[]") return value;
if (type.FullName == "System.Char[]") return value;
if (type.IsArray && level == 0)
{
var elementType = type.GetElementType();
Type enumType = null;
if (elementType.IsEnum) enumType = elementType;
else if (elementType.IsNullableType() && elementType.GenericTypeArguments.First().IsEnum)
enumType = elementType.GenericTypeArguments.First();
if (enumType != null)
return enumType.GetCustomAttributes(typeof(FlagsAttribute), false).Any()
? getParamterArrayValue(typeof(long), value,
elementType.IsEnum ? null : enumType.CreateInstanceGetDefaultValue())
: getParamterArrayValue(typeof(int), value,
elementType.IsEnum ? null : enumType.CreateInstanceGetDefaultValue());
return dicGetParamterValue.TryGetValue(type.FullName, out var trydicarr) ? trydicarr(value) : value;
}
if (type.IsNullableType()) type = type.GenericTypeArguments.First();
if (type.IsEnum) return (int)value;
if (dicGetParamterValue.TryGetValue(type.FullName, out var trydic)) return trydic(value);
return value;
}
public override DbParameter AppendParamter(List<DbParameter> _params, string parameterName, ColumnInfo col,
Type type, object value)
{
if (string.IsNullOrEmpty(parameterName)) parameterName = $"p_{_params?.Count}";
if (value != null) value = getParamterValue(type, value);
var ret = new NpgsqlParameter { ParameterName = QuoteParamterName(parameterName), Value = value };
if (value != null && (value.GetType().IsEnum ||
value.GetType().GenericTypeArguments.FirstOrDefault()?.IsEnum == true))
{
ret.DataTypeName = "";
}
else
{
var tp = _orm.CodeFirst.GetDbInfo(type)?.type;
if (tp != null)
{
var ntp = (NpgsqlDbType)tp;
switch (ntp)
{
case NpgsqlDbType.Boolean:
ret.NpgsqlDbType = NpgsqlDbType.Text;
ret.DbType = DbType.String;
ret.Value = string.Concat(value);
break;
case NpgsqlDbType.Numeric:
ret.NpgsqlDbType = NpgsqlDbType.Double;
ret.DbType = DbType.Double;
ret.Value = Convert.ToDouble(FormatSql("{0}", value));
break;
default:
ret.NpgsqlDbType = (NpgsqlDbType)tp.Value;
break;
}
}
if (col != null)
{
var dbtype = (NpgsqlDbType)_orm.DbFirst.GetDbType(new DatabaseModel.DbColumnInfo
{ DbTypeText = col.DbTypeText });
if (dbtype != NpgsqlDbType.Unknown)
{
ret.NpgsqlDbType = dbtype;
//if (col.DbSize != 0) ret.Size = col.DbSize;
if (col.DbPrecision != 0)
ret.Precision = col.DbPrecision;
if (col.DbScale != 0)
ret.Scale = col.DbScale;
}
}
}
_params?.Add(ret);
return ret;
}
public override DbParameter[] GetDbParamtersByObject(string sql, object obj) =>
Utils.GetDbParamtersByObject<NpgsqlParameter>(sql, obj, "@", (name, type, value) =>
{
if (value != null) value = getParamterValue(type, value);
var ret = new NpgsqlParameter { ParameterName = $"@{name}", Value = value };
//if (value.GetType().IsEnum || value.GetType().GenericTypeArguments.FirstOrDefault()?.IsEnum == true) {
// ret.DataTypeName = "";
//} else {
var tp = _orm.CodeFirst.GetDbInfo(type)?.type;
if (tp != null) ret.NpgsqlDbType = (NpgsqlDbType)tp.Value;
//}
return ret;
});
public override string FormatSql(string sql, params object[] args) => sql?.FormatQuestDb(args);
public override string QuoteSqlNameAdapter(params string[] name)
{
if (name.Length == 1)
{
var nametrim = name[0].Trim();
if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
return nametrim; //原生SQL
if (nametrim.StartsWith("\"") && nametrim.EndsWith("\""))
return nametrim;
return $"\"{nametrim.Replace(".", "\".\"")}\"";
}
return $"\"{string.Join("\".\"", name)}\"";
}
public override string TrimQuoteSqlName(string name)
{
var nametrim = name.Trim();
if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
return nametrim; //原生SQL
return $"{nametrim.Trim('"').Replace("\".\"", ".").Replace(".\"", ".")}";
}
public override string[] SplitTableName(string name) => GetSplitTableNames(name, '"', '"', 2);
public override string QuoteParamterName(string name) => $"@{name}";
public override string IsNull(string sql, object value) => $"coalesce({sql}, {value})";
public override string StringConcat(string[] objs, Type[] types) => $"{string.Join(" || ", objs)}";
public override string Mod(string left, string right, Type leftType, Type rightType) => $"{left} % {right}";
public override string Div(string left, string right, Type leftType, Type rightType) => $"{left} / {right}";
public override string Now => now_to_timezone;
public override string NowUtc => "systimestamp()";
public override string QuoteWriteParamterAdapter(Type type, string paramterName) => paramterName;
protected override string QuoteReadColumnAdapter(Type type, Type mapType, string columnName) => columnName;
public override string GetNoneParamaterSqlValue(List<DbParameter> specialParams, string specialParamFlag,
ColumnInfo col, Type type, object value)
{
if (value == null) return "NULL";
if (type.IsNumberType()) return string.Format(CultureInfo.InvariantCulture, "{0}", value);
value = getParamterValue(type, value);
var type2 = value.GetType();
if (type2 == typeof(byte[])) return $"'\\x{CommonUtils.BytesSqlRaw(value as byte[])}'";
else if (dicGetParamterValue.ContainsKey(type2.FullName))
{
value = string.Concat(value);
}
return FormatSql("{0}", value, 1);
}
}
}
namespace FreeSql
{
public enum SampleUnit
{
microsecond = 'U',
millisecond = 'T',
second = 's',
minute = 'm',
hour = 'h',
day = 'd',
month = 'M',
year = 'y',
}
}