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tijian_tieying/web/cyqdata-master/DAL/DalCreate.cs

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C#
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v1
2025-02-20 12:14:39 +08:00
using System;
using System.Collections.Generic;
using System.Text;
using CYQ.Data.Tool;
using System.Threading;
using System.IO;
namespace CYQ.Data
{
/// <summary>
/// <20><><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD>
/// </summary>
internal class DalCreate
{
private const string SqlClient = "System.Data.SqlClient";
private const string OleDb = "System.Data.OleDb";
private const string OracleClient = "System.Data.OracleClient";
private const string SQLiteClient = "System.Data.SQLite";
private const string MySqlClient = "MySql.Data.MySqlClient";
private const string SybaseClient = "Sybase.Data.AseClient";
private const string PostgreClient = "System.Data.NpgSqlClient";
private const string TxtClient = "CYQ.Data.TxtClient";
private const string XmlClient = "CYQ.Data.XmlClient";
private const string XHtmlClient = "CYQ.Data.XHtmlClient";
/// <summary>
/// <20>򵥹<EFBFBD><F2B5A5B9><EFBFBD><EFBFBD><EFBFBD>Factory Method<6F><64>
/// </summary>
/// <param name="dbConn"></param>
/// <returns></returns>
public static DbBase CreateDal(string dbConn)
{
DbBase db = GetDbBaseBy(GetConnObject(dbConn));
if (db.connObject.Master.ConfigName != dbConn && dbConn.EndsWith("Conn"))//<2F><>Ҫ<EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD>á<EFBFBD>
{
DbResetResult result = db.ChangeDatabase(dbConn.Substring(0, dbConn.Length - 4));
if (result == DbResetResult.Yes) // д<>뻺<EFBFBD><EBBBBA>
{
if (!connDicCache.ContainsKey(dbConn))
{
connDicCache.Set(dbConn, db.connObject);
}
}
}
return db;
//ConnEntity cEntity = GetConnString(dbConn);
//DbBase db = GetDbBaseBy(cEntity.Conn, cEntity.ProviderName);
//db.connObject = cEntity;
//return db;
}
public static DalType GetDalTypeByConn(string conn)
{
return GetConnBean(conn).ConnDalType;
}
public static DalType GetDalTypeByReaderName(string typeName)
{
switch (typeName.Replace("DataReader", "").ToLower())
{
case "oracle":
return DalType.Oracle;
case "sql":
return DalType.MsSql;
case "sqlite":
return DalType.SQLite;
case "oledb":
return DalType.Access;
case "mysql":
return DalType.MySql;
case "odbc":
case "ase":
return DalType.Sybase;
case "PgSql":
case "Npgsql":
return DalType.PostgreSQL;
default:
return DalType.None;
}
}
public static string GetProvider(string connString)
{
connString = connString.ToLower().Replace(" ", "");//ȥ<><C8A5><EFBFBD>ո<EFBFBD>
if (connString.Contains("initialcatalog=") || connString.Contains("port=1433"))
{
return SqlClient;
}
else if (connString.Contains("microsoft.jet.oledb.4.0") || connString.Contains("microsoft.ace.oledb") || connString.Contains(".mdb"))
{
return OleDb;
}
else if (connString.Contains("provider=msdaora") || connString.Contains("provider=oraoledb.oracle")
|| connString.Contains("description=") || connString.Contains("fororacle"))
{
return OracleClient;
}
else if (connString.Contains("failifmissing=") || (connString.StartsWith("datasource=") && connString.EndsWith(".db")))
{
return SQLiteClient;
}
else if (connString.Contains("convertzerodatetime") || (connString.Contains("host=") && connString.Contains("port=") && connString.Contains("database=")))
{
return MySqlClient;
}
else if (connString.Contains("provider=ase") || (connString.Contains("datasource=") && connString.Contains("port=") && connString.Contains("database=")))
{
return SybaseClient;
}
else if (connString.Contains("port=5432"))
{
return PostgreClient;
}
else if (connString.Contains("txtpath="))
{
return TxtClient;
}
else if (connString.Contains("xmlpath="))
{
return XmlClient;
}
else
{
//postgre<72><65>mssql<71><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>database=<3D><>uid=˳<><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>databaseд<65>ں<EFBFBD><DABA><EFBFBD><EFBFBD>ģ<EFBFBD>Ϊpostgre
int dbIndex = connString.IndexOf("database=", StringComparison.OrdinalIgnoreCase);
int uid = connString.IndexOf("uid=", StringComparison.OrdinalIgnoreCase);
if (uid > 0 && uid < dbIndex && File.Exists(AppConfig.RunPath + "Npgsql.dll"))
{
return PostgreClient;
}
return SqlClient;
}
}
public static DalType GetDalType(string providerName)
{
switch (providerName)
{
case SqlClient:
return DalType.MsSql;
case OleDb:
return DalType.Access;
case OracleClient:
return DalType.Oracle;
case SQLiteClient:
return DalType.SQLite;
case MySqlClient:
return DalType.MySql;
case SybaseClient:
return DalType.Sybase;
case PostgreClient:
return DalType.PostgreSQL;
case TxtClient:
return DalType.Txt;
case XmlClient:
return DalType.Xml;
}
return (DalType)Error.Throw(string.Format("GetDalType:{0} No Be Support Now!", providerName));
}
private static DbBase GetDbBaseBy(ConnObject co)
{
string providerName = co.Master.ProviderName;
//License.Check(providerName);//<2F><><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD>⡣
switch (providerName)
{
case SqlClient:
return new MsSqlDal(co);
case OleDb:
return new OleDbDal(co);
case OracleClient:
return new OracleDal(co);
case SQLiteClient:
return new SQLiteDal(co);
case MySqlClient:
return new MySQLDal(co);
case SybaseClient:
return new SybaseDal(co);
case PostgreClient:
return new PostgreDal(co);
case TxtClient:
case XmlClient:
return new NoSqlDal(co);
}
return (DbBase)Error.Throw(string.Format("GetHelper:{0} No Be Support Now!", providerName));
}
#region ע<EFBFBD>͵Ĵ<EFBFBD><EFBFBD><EFBFBD>
/*
private static MDictionary<string, ConnEntity> connCache = new MDictionary<string, ConnEntity>();
internal static ConnEntity GetConnString(string dbConn) // ˼<><CBBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD>⡣=<3D><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>˼<EFBFBD><CBBC><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡣
{
if (connCache.ContainsKey(dbConn))
{
return connCache[dbConn];
}
ConnEntity cEntity = new ConnEntity();
cEntity.Conn = string.IsNullOrEmpty(dbConn) ? AppConfig.DB.DefaultConn : dbConn;
if (cEntity.Conn.Length < 32 && cEntity.Conn.Split(' ').Length == 1)//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
if (ConfigurationManager.ConnectionStrings[cEntity.Conn] == null && cEntity.Conn != AppConfig.DB.DefaultConn)
{
cEntity.Conn = AppConfig.DB.DefaultConn;//תȡĬ<C8A1><C4AC><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
if (cEntity.Conn.Length >= 32 || cEntity.Conn.Trim().Contains(" "))
{
goto er;
}
}
if (ConfigurationManager.ConnectionStrings[cEntity.Conn] != null)
{
string p = string.Empty, c = string.Empty;
#region <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
string bakKey = cEntity.Conn + "_Bak";
if (ConfigurationManager.ConnectionStrings[cEntity.Conn + "_Bak"] == null && cEntity.Conn == AppConfig.DB.DefaultConn && AppConfig.DB.DefaultConnBak != cEntity.Conn + "_Bak")
{
bakKey = AppConfig.DB.DefaultConnBak;
}
string connBak = AppConfig.GetConn(bakKey, out p);
if (connBak.Length >= 32 || connBak.Trim().Contains(" "))//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD>
{
cEntity.ConnBak = AppConfig.GetConn(bakKey, out p);
cEntity.ProviderNameBak = p;
}
#endregion
cEntity.Conn = AppConfig.GetConn(cEntity.Conn, out p);
cEntity.ProviderName = p;
}
else
{
Error.Throw(string.Format("Can't find the connection key '{0}' from web.config!", cEntity.Conn));
}
}
else if (cEntity.Conn == AppConfig.DB.DefaultConn && string.IsNullOrEmpty(cEntity.ConnBak))
{
string connBak = AppConfig.GetConn(AppConfig.DB.DefaultConnBak);//<2F>ȸ<EFBFBD>Ĭ<EFBFBD>ϱ<EFBFBD><CFB1><EFBFBD>ֵ<EFBFBD><D6B5>
if (connBak.Length >= 32 || connBak.Trim().Contains(" "))//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD>
{
cEntity.ConnBak = connBak;
}
}
er:
if (string.IsNullOrEmpty(cEntity.ProviderName))
{
cEntity.ProviderName = GetProvider(cEntity.Conn);
cEntity.ConnDalType = GetDalType(cEntity.ProviderName);
}
if (string.IsNullOrEmpty(cEntity.ProviderNameBak) && !string.IsNullOrEmpty(cEntity.ConnBak))
{
cEntity.ProviderNameBak = DalCreate.GetProvider(cEntity.ConnBak);
cEntity.ConnBakDalType = GetDalType(cEntity.ProviderNameBak);
}
cEntity.Conn = string.Format(cEntity.Conn, AppConfig.WebRootPath);
cEntity.ConnBak = string.Format(cEntity.ConnBak ?? string.Empty, AppConfig.WebRootPath);
if (!connCache.ContainsKey(dbConn))
{
connCache.Set(dbConn, cEntity);
}
return cEntity;
}
*/
#endregion
internal static string FormatConn(DalType dal, string connString)
{
if (dal != DalType.Access)
{
string conn = connString.ToLower();
int index = conn.IndexOf("provider");
if (index > -1 && index < connString.Length - 5 && (connString[index + 8] == '=' || connString[index + 9] == '='))
{
int end = conn.IndexOf(';', index);
if (end > index)
{
connString = connString.Remove(index, end - index + 1);
}
}
}
return connString;
}
/// <summary>
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵĶ<D3B5><C4B6>󼯺<EFBFBD>
/// </summary>
private static MDictionary<string, ConnObject> connDicCache = new MDictionary<string, ConnObject>(StringComparer.OrdinalIgnoreCase);
internal static ConnObject GetConnObject(string dbConn)
{
dbConn = string.IsNullOrEmpty(dbConn) ? AppConfig.DB.DefaultConn : dbConn;
if (dbConn.EndsWith("_Bak")) { dbConn = dbConn.Replace("_Bak", ""); }
if (connDicCache.ContainsKey(dbConn))
{
return connDicCache[dbConn];
}
ConnBean cbMaster = GetConnBean(dbConn);
if (cbMaster == null)
{
string errMsg = string.Format("Can't find the connection key '{0}' from web.config or app.config!", dbConn);
if (dbConn == AppConfig.DB.DefaultConn)
{
Error.Throw(errMsg);
}
else
{
ConnBean cb = GetConnBean(AppConfig.DB.DefaultConn);
if (cb != null)
{
cbMaster = cb.Clone();//<2F><>ȡĬ<C8A1>ϵ<EFBFBD>ֵ<EFBFBD><D6B5>
}
else
{
Error.Throw(errMsg);
}
}
}
ConnObject co = new ConnObject();
co.Master = cbMaster;
if (dbConn != null && dbConn.Length < 32 && !dbConn.Trim().Contains(" ")) // ΪconfigKey
{
ConnBean coBak = GetConnBean(dbConn + "_Bak");
if (coBak != null && coBak.ProviderName == cbMaster.ProviderName)
{
co.BackUp = coBak;
}
for (int i = 1; i < 1000; i++)
{
ConnBean cbSlave = GetConnBean(dbConn + "_Slave" + i);
if (cbSlave == null)
{
break;
}
cbSlave.IsSlave = true;
co.Slave.Add(cbSlave);
}
}
if (!connDicCache.ContainsKey(dbConn) && co.Master.ConfigName == dbConn) // <20><>һ<EFBFBD>µģ<C2B5><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD>ٻ<EFBFBD><D9BB><EFBFBD>
{
connDicCache.Set(dbConn, co);
}
return co;
}
private static ConnBean GetConnBean(string dbConn)
{
string provider;
string conn = string.Format(AppConfig.GetConn(dbConn, out provider), AppConfig.WebRootPath);
if (string.IsNullOrEmpty(conn))
{
return null;
}
ConnBean cb = new ConnBean();
cb.ConfigName = dbConn;
cb.Conn = conn;
if (string.IsNullOrEmpty(provider))
{
provider = GetProvider(cb.Conn);
}
cb.ProviderName = provider;
cb.ConnDalType = GetDalType(provider);
return cb;
}
/// <summary>
/// <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD><ECB3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7>ָ<EFBFBD><D6B8><EFBFBD>
/// </summary>
/// <param name="threadID"></param>
public static void CheckConnIsOk(object threadID)
{
while (true)
{
Thread.Sleep(3000);
if (connDicCache.Count > 0)
{
try
{
string[] items = new string[connDicCache.Count];
connDicCache.Keys.CopyTo(items, 0);
foreach (string key in items)
{
ConnObject obj = connDicCache[key];
if (obj != null)
{
if (!obj.Master.IsOK) { obj.Master.TryTestConn(); }
if (obj.BackUp != null && !obj.BackUp.IsOK) { obj.BackUp.TryTestConn(); }
if (obj.Slave != null && obj.Slave.Count > 0)
{
for (int i = 0; i < obj.Slave.Count; i++)
{
if (!obj.Slave[i].IsOK)
{
obj.Slave[i].TryTestConn();
}
}
}
}
}
items = null;
}
catch
{
}
}
}
}
}
}
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