mcs/class/referencesource/System.Data/System/Data/OleDb/OleDbError.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="OleDbError.cs" company="Microsoft">
   3 //      Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 // <owner current="true" primary="true">[....]</owner>
   6 // <owner current="true" primary="false">[....]</owner>
   7 //------------------------------------------------------------------------------
   8
   9 namespace System.Data.OleDb {
  10
  11     using System;
  12     using System.Data.Common;
  13     using System.Diagnostics;
  14     using System.Globalization;
  15     using System.Runtime.InteropServices;
  16
  17     [Serializable]
  18     public sealed class OleDbError {
  19         readonly private string message;
  20         readonly private string source;
  21         readonly private string sqlState;
  22         readonly private int nativeError;
  23
  24         internal OleDbError(UnsafeNativeMethods.IErrorRecords errorRecords, int index) {
  25             OleDbHResult hr;
  26             int lcid = System.Globalization.CultureInfo.CurrentCulture.LCID;
  27
  28             Bid.Trace("<oledb.IErrorRecords.GetErrorInfo|API|OS>\n");
  29             UnsafeNativeMethods.IErrorInfo errorInfo = errorRecords.GetErrorInfo(index, lcid);
  30             if (null != errorInfo) {
  31
  32                 Bid.Trace("<oledb.IErrorInfo.GetDescription|API|OS>\n");
  33                 hr = errorInfo.GetDescription(out this.message);
  34                 Bid.Trace("<oledb.IErrorInfo.GetDescription|API|OS|RET> Message='%ls'\n", this.message);
  35
  36                 if (OleDbHResult.DB_E_NOLOCALE == hr) { // MDAC 87303
  37                     Bid.Trace("<oledb.ReleaseComObject|API|OS> ErrorInfo\n");
  38                     Marshal.ReleaseComObject(errorInfo);
  39
  40                     Bid.Trace("<oledb.Kernel32.GetUserDefaultLCID|API|OS>\n");
  41                     lcid = SafeNativeMethods.GetUserDefaultLCID();
  42
  43                     Bid.Trace("<oledb.IErrorRecords.GetErrorInfo|API|OS> LCID=%d\n", lcid);
  44                     errorInfo = errorRecords.GetErrorInfo(index, lcid);
  45
  46                     if (null != errorInfo) {
  47
  48                         Bid.Trace("<oledb.IErrorInfo.GetDescription|API|OS>\n");
  49                         hr = errorInfo.GetDescription(out this.message);
  50                         Bid.Trace("<oledb.IErrorInfo.GetDescription|API|OS|RET> Message='%ls'\n", this.message);
  51                     }
  52                 }
  53                 if ((hr < 0) && ADP.IsEmpty(this.message)) {
  54                     this.message = ODB.FailedGetDescription(hr);
  55                 }
  56                 if (null != errorInfo) {
  57
  58                     Bid.Trace("<oledb.IErrorInfo.GetSource|API|OS>\n");
  59                     hr = errorInfo.GetSource(out this.source);
  60                     Bid.Trace("<oledb.IErrorInfo.GetSource|API|OS|RET> Source='%ls'\n", this.source);
  61
  62                     if (OleDbHResult.DB_E_NOLOCALE == hr) { // MDAC 87303
  63                         Marshal.ReleaseComObject(errorInfo);
  64
  65                         Bid.Trace("<oledb.Kernel32.GetUserDefaultLCID|API|OS>\n");
  66                         lcid = SafeNativeMethods.GetUserDefaultLCID();
  67
  68                         Bid.Trace("<oledb.IErrorRecords.GetErrorInfo|API|OS> LCID=%d\n", lcid);
  69                         errorInfo = errorRecords.GetErrorInfo(index, lcid);
  70
  71                         if (null != errorInfo) {
  72
  73                             Bid.Trace("<oledb.IErrorInfo.GetSource|API|OS>\n");
  74                             hr = errorInfo.GetSource(out this.source);
  75                             Bid.Trace("<oledb.IErrorInfo.GetSource|API|OS|RET> Source='%ls'\n", this.source);
  76                         }
  77                     }
  78                     if ((hr < 0) && ADP.IsEmpty(this.source)) {
  79                         this.source = ODB.FailedGetSource(hr);
  80                     }
  81                     Bid.Trace("<oledb.Marshal.ReleaseComObject|API|OS> ErrorInfo\n");
  82                     Marshal.ReleaseComObject(errorInfo);
  83                 }
  84             }
  85
  86             UnsafeNativeMethods.ISQLErrorInfo sqlErrorInfo;
  87
  88             Bid.Trace("<oledb.IErrorRecords.GetCustomErrorObject|API|OS> IID_ISQLErrorInfo\n");
  89             hr = errorRecords.GetCustomErrorObject(index, ref ODB.IID_ISQLErrorInfo, out sqlErrorInfo);
  90
  91             if (null != sqlErrorInfo) {
  92
  93                 Bid.Trace("<oledb.ISQLErrorInfo.GetSQLInfo|API|OS>\n");
  94                 this.nativeError = sqlErrorInfo.GetSQLInfo(out this.sqlState);
  95
  96                 Bid.Trace("<oledb.ReleaseComObject|API|OS> SQLErrorInfo\n");
  97                 Marshal.ReleaseComObject(sqlErrorInfo);
  98             }
  99         }
 100
 101         public string Message {
 102             get {
 103                 string message = this.message;
 104                 return ((null != message) ? message : ADP.StrEmpty);
 105             }
 106         }
 107
 108         public int NativeError {
 109             get {
 110                 return this.nativeError;
 111             }
 112         }
 113
 114         public string Source {
 115             get {
 116                 string source = this.source;
 117                 return ((null != source) ? source : ADP.StrEmpty);
 118             }
 119         }
 120
 121         public string SQLState {
 122             get {
 123                 string sqlState = this.sqlState;
 124                 return ((null != sqlState) ? sqlState : ADP.StrEmpty);
 125             }
 126         }
 127
 128         override public string ToString() {
 129             return Message;
 130         }
 131     }
 132 }