292 lines
10 KiB
C#
292 lines
10 KiB
C#
using System.Data.OracleClient;
|
||
//using Oracle.DataAccess.Client;
|
||
using System.Data;
|
||
using System;
|
||
using System.Data.Common;
|
||
using System.Reflection;
|
||
using CYQ.Data.Tool;
|
||
using CYQ.Data.Cache;
|
||
|
||
namespace CYQ.Data
|
||
{
|
||
internal partial class OracleDal : DalBase
|
||
{
|
||
/// <summary>
|
||
/// 区分Oracle11和Oracle12的Dll名称。
|
||
/// </summary>
|
||
public static string ManagedName = "Managed";
|
||
|
||
public OracleDal(ConnObject co)
|
||
: base(co)
|
||
{
|
||
}
|
||
protected override void AddReturnPara()
|
||
{
|
||
if (!Com.Parameters.Contains("ResultCount"))
|
||
{
|
||
AddParameters("ResultCount", DBNull.Value, DbType.Int32, -1, ParameterDirection.Output);//记录总数在最后一位
|
||
}
|
||
if (!Com.Parameters.Contains("ResultCursor"))
|
||
{
|
||
AddCustomePara("ResultCursor", ParaType.Cursor, DBNull.Value, null);
|
||
}
|
||
|
||
}
|
||
internal override void AddCustomePara(string paraName, ParaType paraType, object value, string typeName)
|
||
{
|
||
if (IsUseOdpNet)
|
||
{
|
||
AddParaForOdpNet(paraName, paraType, value);
|
||
}
|
||
else
|
||
{
|
||
AddParaForOracleClient(paraName, paraType, value);
|
||
}
|
||
}
|
||
|
||
private void AddParaForOracleClient(string paraName, ParaType paraType, object value)
|
||
{
|
||
if (Com.Parameters.Contains(paraName)) { return; }
|
||
OracleParameter para = new OracleParameter();
|
||
para.ParameterName = paraName;
|
||
switch (paraType)
|
||
{
|
||
case ParaType.Cursor:
|
||
case ParaType.OutPut:
|
||
if (paraType == ParaType.Cursor)
|
||
{
|
||
para.OracleType = OracleType.Cursor;
|
||
}
|
||
else
|
||
{
|
||
para.OracleType = OracleType.NVarChar;
|
||
para.Size = 4000;
|
||
}
|
||
para.Direction = ParameterDirection.Output;
|
||
break;
|
||
case ParaType.ReturnValue:
|
||
para.OracleType = OracleType.Int32;
|
||
para.Direction = ParameterDirection.ReturnValue;
|
||
break;
|
||
case ParaType.CLOB:
|
||
case ParaType.NCLOB:
|
||
para.OracleType = paraType == ParaType.CLOB ? OracleType.Clob : OracleType.NClob;
|
||
para.Direction = ParameterDirection.Input;
|
||
if (value != null)
|
||
{
|
||
para.Value = value;
|
||
}
|
||
break;
|
||
}
|
||
Com.Parameters.Add(para);
|
||
}
|
||
private void AddParaForOdpNet(string paraName, ParaType paraType, object value)
|
||
{
|
||
Assembly ass = GetAssembly();
|
||
//工厂方法理解点
|
||
DbParameter para = ass.CreateInstance("Oracle." + ManagedName + "DataAccess.Client.OracleParameter") as DbParameter;
|
||
para.ParameterName = paraName;
|
||
switch (paraType)
|
||
{
|
||
case ParaType.Cursor:
|
||
case ParaType.OutPut:
|
||
if (paraType == ParaType.Cursor)
|
||
{
|
||
para.GetType().GetProperty("OracleDbType").SetValue(para, OracleDbType.RefCursor, null);
|
||
}
|
||
else
|
||
{
|
||
para.DbType = DbType.String;
|
||
para.Size = 4000;
|
||
}
|
||
para.Direction = ParameterDirection.Output;
|
||
value = DBNull.Value;
|
||
break;
|
||
case ParaType.ReturnValue:
|
||
para.DbType = DbType.Int32;
|
||
para.Direction = ParameterDirection.ReturnValue;
|
||
value = DBNull.Value;
|
||
break;
|
||
case ParaType.CLOB:
|
||
case ParaType.NCLOB:
|
||
para.GetType().GetProperty("OracleDbType").SetValue(para, paraType == ParaType.CLOB ? OracleDbType.Clob : OracleDbType.NClob, null);
|
||
para.Direction = ParameterDirection.Input;
|
||
if (value != null)
|
||
{
|
||
para.Value = value;
|
||
}
|
||
break;
|
||
}
|
||
Com.Parameters.Add(para);
|
||
}
|
||
|
||
public override string DataBaseName
|
||
{
|
||
get
|
||
{
|
||
// (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT = 1521)))(CONNECT_DATA =(Sid = Aries)))
|
||
int i = _con.DataSource.LastIndexOf('=') + 1;
|
||
return _con.DataSource.Substring(i).Trim(' ', ')');
|
||
}
|
||
}
|
||
public override char Pre
|
||
{
|
||
get
|
||
{
|
||
return ':';
|
||
}
|
||
}
|
||
internal static Assembly GetAssembly()
|
||
{
|
||
object ass = DistributedCache.Local.Get("OracleClient_Assembly");
|
||
if (ass == null)
|
||
{
|
||
//try
|
||
//{
|
||
ass = Assembly.Load("Oracle." + ManagedName + "DataAccess");
|
||
DistributedCache.Local.Set("OracleClient_Assembly", ass, 10080);
|
||
//}
|
||
//catch(Exception err)
|
||
//{
|
||
// Error.Throw(errMsg);
|
||
//}
|
||
}
|
||
return ass as Assembly;
|
||
}
|
||
/// <summary>
|
||
/// 抽象工厂
|
||
/// </summary>
|
||
protected override DbProviderFactory GetFactory()
|
||
{
|
||
if (IsUseOdpNet)
|
||
{
|
||
object factory = DistributedCache.Local.Get("OracleClient_Factory");
|
||
if (factory == null)
|
||
{
|
||
|
||
Assembly ass = GetAssembly();
|
||
factory = ass.CreateInstance("Oracle." + ManagedName + "DataAccess.Client.OracleClientFactory");
|
||
if (factory == null)
|
||
{
|
||
throw new System.Exception("Can't Create OracleClientFactory in Oracle." + ManagedName + "DataAccess.dll");
|
||
}
|
||
else
|
||
{
|
||
DistributedCache.Local.Set("OracleClient_Factory", factory, 10080);
|
||
}
|
||
|
||
}
|
||
return factory as DbProviderFactory;
|
||
}
|
||
else
|
||
{
|
||
return DbProviderFactories.GetFactory("System.Data.OracleClient");
|
||
}
|
||
}
|
||
/// <summary>
|
||
/// 值-1未初始化；0使用OracleClient；1使用DataAccess；2使用ManagedDataAccess
|
||
/// </summary>
|
||
internal static int clientType = -1;
|
||
private static readonly object lockObj = new object();
|
||
/// <summary>
|
||
/// 是否使用Oracle的ODP.NET组件。
|
||
/// </summary>
|
||
private bool IsUseOdpNet
|
||
{
|
||
get
|
||
{
|
||
if (clientType == -1)
|
||
{
|
||
lock (lockObj)
|
||
{
|
||
if (clientType == -1)
|
||
{
|
||
if (AppConfig.GetConn(base.ConnName).IndexOf("host", StringComparison.OrdinalIgnoreCase) == -1)
|
||
{
|
||
clientType = 0;
|
||
}
|
||
else
|
||
{
|
||
string path = AppConst.AssemblyPath;
|
||
if (System.IO.File.Exists(path + "Oracle." + ManagedName + "DataAccess.dll"))//Oracle 12
|
||
{
|
||
clientType = 2;
|
||
}
|
||
else if (System.IO.File.Exists(path + "Oracle.DataAccess.dll")) ////Oracle 11
|
||
{
|
||
ManagedName = "";
|
||
clientType = 1;
|
||
}
|
||
else
|
||
{
|
||
clientType = 0;
|
||
Log.Write("Can't find Oracle.ManagedDataAccess.dll or Oracle.DataAccess.dll on the path:" + path, LogType.DataBase);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return clientType > 0;
|
||
}
|
||
}
|
||
protected override bool IsExistsDbName(string dbName)
|
||
{
|
||
return DBTool.TestConn(GetConnString(dbName));
|
||
}
|
||
}
|
||
|
||
internal partial class OracleDal
|
||
{
|
||
protected override string GetUVPSql(string type)
|
||
{
|
||
if (type == "U")
|
||
{
|
||
return "select TABLE_NAME AS TableName,COMMENTS AS Description from user_tab_comments where TABLE_TYPE='TABLE' and TABLE_NAME not like 'BIN$%' order by TABLE_NAME";
|
||
}
|
||
else if (type == "V")
|
||
{
|
||
return "select TABLE_NAME AS TableName,COMMENTS AS Description from user_tab_comments where TABLE_TYPE='VIEW' order by TABLE_NAME";
|
||
}
|
||
else if (type == "P")
|
||
{
|
||
return "select object_name as TableName,'' as Description from user_objects where object_type = 'PROCEDURE' order by object_name";
|
||
}
|
||
return "";
|
||
}
|
||
}
|
||
|
||
internal enum OracleDbType
|
||
{
|
||
//BFile = 101,
|
||
//Blob = 102,
|
||
//Byte = 103,
|
||
//Char = 104,
|
||
Clob = 105,
|
||
//Date = 106,
|
||
//Decimal = 107,
|
||
//Double = 108,
|
||
//Long = 109,
|
||
//LongRaw = 110,
|
||
//Int16 = 111,
|
||
//Int32 = 112,
|
||
//Int64 = 113,
|
||
//IntervalDS = 114,
|
||
//IntervalYM = 115,
|
||
NClob = 116,
|
||
//NChar = 117,
|
||
//NVarchar2 = 119,
|
||
//Raw = 120,
|
||
RefCursor = 121,
|
||
//Single = 122,
|
||
//TimeStamp = 123,
|
||
//TimeStampLTZ = 124,
|
||
//TimeStampTZ = 125,
|
||
//Varchar2 = 126,
|
||
//XmlType = 127,
|
||
//Array = 128,
|
||
//Object = 129,
|
||
//Ref = 130,
|
||
//BinaryDouble = 132,
|
||
//BinaryFloat = 133,
|
||
}
|
||
} |