mcs/class/System.Data/System.Data.SqlClient.jvm/SqlConnection.cs

   1 //
   2 // System.Data.SqlClient.SqlConnection
   3 //
   4 // Authors:
   5 //      Konstantin Triger <kostat@mainsoft.com>
   6 //      Boris Kirzner <borisk@mainsoft.com>
   7 //
   8 // (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Data;
  33 using System.Data.Common;
  34 using System.Collections;
  35 using System.Data.ProviderBase;
  36
  37 using java.sql;
  38
  39 using System.Configuration;
  40 using Mainsoft.Data.Configuration;
  41 using Mainsoft.Data.Jdbc.Providers;
  42
  43 namespace System.Data.SqlClient
  44 {
  45         public class SqlConnection : AbstractDBConnection
  46         {
  47                 #region Fields
  48
  49                 private const int DEFAULT_PACKET_SIZE = 8192;
  50
  51                 #endregion // Fields
  52
  53                 #region Constructors
  54
  55                 public SqlConnection() : this(null)
  56                 {
  57                 }
  58
  59                 public SqlConnection(String connectionString) : base(connectionString)
  60                 {
  61                 }
  62
  63                 #endregion // Constructors
  64
  65                 #region Events
  66
  67                 [DataCategory ("InfoMessage")]
  68                 [DataSysDescription ("Event triggered when messages arrive from the DataSource.")]
  69                 public event SqlInfoMessageEventHandler InfoMessage;
  70
  71                 #endregion // Events
  72
  73                 #region Properties
  74
  75                 public string WorkstationId
  76                 {
  77                         get { return (string)ConnectionStringBuilder["workstation id"]; }
  78                 }
  79
  80                 public int PacketSize
  81                 {
  82                         get {
  83                                 string packetSize = (string)ConnectionStringBuilder["Packet Size"];
  84                                 if (packetSize == null || packetSize.Length == 0) {
  85                                         return DEFAULT_PACKET_SIZE;
  86                                 }
  87                                 try {
  88                                         return Convert.ToInt32(packetSize);
  89                                 }
  90                                 catch(FormatException e) {
  91                                         throw ExceptionHelper.InvalidValueForKey("packet size");
  92                                 }
  93                                 catch (OverflowException e) {
  94                                         throw ExceptionHelper.InvalidValueForKey("packet size");
  95                                 }
  96                         }
  97                 }
  98
  99                 protected override IConnectionProvider GetConnectionProvider() {
 100                         IDictionary conProviderDict = ConnectionStringDictionary.Parse(ConnectionString);
 101                         string provider = (string)conProviderDict["Provider"];
 102                         if (provider == null)
 103                                 provider = "SQLCLIENT";
 104
 105                         return GetConnectionProvider("Mainsoft.Data.Configuration/SqlClientProviders", provider);
 106                 }
 107
 108                 #endregion // Properties
 109
 110                 #region Methods
 111
 112                 protected override DbTransaction BeginDbTransaction(IsolationLevel isolationLevel) {
 113                         return BeginTransaction(isolationLevel);
 114                 }
 115
 116                 public SqlTransaction BeginTransaction(String transactionName)
 117                 {
 118                         return BeginTransaction(IsolationLevel.ReadCommitted,transactionName);
 119                 }
 120
 121                 public new SqlTransaction BeginTransaction(IsolationLevel isolationLevel)
 122                 {
 123                         return BeginTransaction(isolationLevel,"Transaction");
 124                 }
 125
 126                 public new SqlTransaction BeginTransaction()
 127                 {
 128                         return BeginTransaction(IsolationLevel.ReadCommitted);
 129                 }
 130
 131                 public SqlTransaction BeginTransaction(IsolationLevel isolationLevel, string transactionName)
 132                 {
 133                         return new SqlTransaction(isolationLevel, this, transactionName);
 134                 }
 135
 136                 public new SqlCommand CreateCommand()
 137                 {
 138                         return new SqlCommand(this);
 139                 }
 140
 141                 protected override DbCommand CreateDbCommand() {
 142                         return CreateCommand();
 143                 }
 144
 145                 protected internal sealed override void OnSqlWarning(SQLWarning warning)
 146                 {
 147                         SqlErrorCollection col = new SqlErrorCollection(warning, this);
 148                         OnSqlInfoMessage(new SqlInfoMessageEventArgs(col));
 149                 }
 150
 151                 protected sealed override SystemException CreateException(SQLException e)
 152                 {
 153                         return new SqlException(e, this);
 154                 }
 155
 156                 protected sealed override SystemException CreateException(string message)
 157                 {
 158                         return new SqlException(message, null, this);
 159                 }
 160
 161                 private void OnSqlInfoMessage (SqlInfoMessageEventArgs value)
 162                 {
 163                         if (InfoMessage != null) {
 164                                 InfoMessage (this, value);
 165                         }
 166                 }
 167
 168 #if NET_2_0
 169
 170                 [MonoNotSupported("")]
 171                 public static void ChangePassword (string connectionString, string newPassword)
 172                 {
 173                         throw new NotImplementedException ();
 174
 175                         // FIXME: refactored from Mono implementation.  Not finished!!!
 176                         if (connectionString == null || newPassword == null || newPassword == String.Empty)
 177                                 throw new ArgumentNullException ();
 178                         if (newPassword.Length > 128)
 179                                 throw new ArgumentException ("The value of newPassword exceeds its permittable length which is 128");
 180
 181                         SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder (connectionString);
 182                         if (builder.IntegratedSecurity) {
 183                                 throw new ArgumentException ("Can't use integrated security when changing password");
 184                         }
 185
 186                         using (SqlConnection conn = new SqlConnection (connectionString)) {
 187                                 conn.Open ();
 188                                 SqlCommand cmd = conn.CreateCommand ();
 189                                 cmd.CommandText = "sp_password";
 190                                 cmd.CommandType = CommandType.StoredProcedure;
 191                                 // FIXME: Need to extract old password and user from our structures
 192                                 // of the connectionString.
 193                                 cmd.Parameters.Add (builder.Password); // Is this good???
 194                                 cmd.Parameters.Add (newPassword);
 195                                 cmd.Parameters.Add (builder.UserID); // Is this good???
 196                                 cmd.ExecuteNonQuery();
 197                         }
 198                 }
 199
 200                 #region Pooling
 201
 202                 [MonoNotSupported("Pooling not supported")]
 203                 public static void ClearPool (SqlConnection connection)
 204                 {
 205                         throw new NotImplementedException ();
 206                 }
 207
 208                 [MonoNotSupported ("Pooling not supported")]
 209                 public static void ClearAllPools ()
 210                 {
 211                         throw new NotImplementedException ();
 212                 }
 213
 214                 #endregion
 215                 #region Statistics
 216
 217                 [MonoNotSupported ("Statistics not supported")]
 218                 public IDictionary RetrieveStatistics ()
 219                 {
 220                         throw new NotImplementedException ();
 221                 }
 222
 223                 [MonoNotSupported ("Statistics not supported")]
 224                 public void ResetStatistics ()
 225                 {
 226                         throw new NotImplementedException ();
 227                 }
 228
 229                 #endregion
 230 #endif
 231                 #endregion // Methods
 232
 233         }
 234 }