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//
// Mono.Data.ProviderFactory
//
// Authors:
// Brian Ritchie (brianlritchie@hotmail.com)
//
//
// Copyright (C) Brian Ritchie, 2002
//
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Data;
using System.Reflection;
using System.Runtime.Remoting;
using System.Configuration;
using System.Xml;
using System.Collections.Specialized;
namespace Mono.Data
{
public class ProviderFactory
{
private static ProviderCollection providers;
static ProviderFactory ()
{
providers = (ProviderCollection) ConfigurationSettings.GetConfig ("mono.data/providers");
if (providers == null) {
providers = new ProviderCollection ();
// warn the developer or administrator that the provider list is empty
System.Diagnostics.Debug.Listeners.Add (new System.Diagnostics.TextWriterTraceListener (Console.Out));
System.Diagnostics.Debug.WriteLine ("No providers found. Did you set up a mono.data/providers area in your app.config or in machine.config?");
}
}
static public ProviderCollection Providers
{
get {
return providers;
}
}
static public IDbConnection CreateConnectionFromConfig (string Setting)
{
if (Setting == null)
throw new System.ArgumentNullException ("Setting");
return CreateConnection (ConfigurationSettings.AppSettings [Setting]);
}
static public IDbConnection CreateConnection(string ConnectionString)
{
if (ConnectionString == null)
throw new System.ArgumentNullException ("ConnectionString");
string [] ConnectionAttributes = ConnectionString.Split (new Char [1] { ';' });
string ProviderName = null;
string NewConnectionString = "";
foreach (string s in ConnectionAttributes) {
string [] AttributeParts = s.Split (new Char [1] { '=' });
if (AttributeParts [0].ToLower ().Trim () == "factory")
ProviderName = AttributeParts [1].Trim ();
else
NewConnectionString += ";" + s;
}
NewConnectionString = NewConnectionString.Remove (0, 1); // remove the initial semicolon
if (ProviderName == null)
throw new System.ArgumentException ("The connection string must contain a 'factory=Provider.Class' token", "ConnectionString");
return CreateConnection (ProviderName, NewConnectionString);
}
static public IDbConnection CreateConnection(string ProviderName, string ConnectionString)
{
if (ProviderName == null)
throw new System.ArgumentNullException("ProviderName");
if (ConnectionString == null)
throw new System.ArgumentNullException ("ConnectionString");
Provider provider = providers [ProviderName];
IDbConnection conn = provider.CreateConnection ();
conn.ConnectionString = ConnectionString;
return conn;
}
static public IDbCommand CreateStoredProc (IDbConnection Conn, string CommandName)
{
if (Conn == null)
throw new System.ArgumentNullException ("Conn");
if (CommandName == null)
throw new System.ArgumentNullException ("CommandName");
IDbCommand cmd = Conn.CreateCommand ();
cmd.CommandText = CommandName;
cmd.CommandType = CommandType.StoredProcedure;
return cmd;
}
static public IDbDataAdapter CreateDataAdapter (IDbCommand SelectCommand)
{
if (SelectCommand == null)
throw new System.ArgumentNullException("SelectCommand");
Provider provider = providers.FindByCommandType (SelectCommand.GetType ());
IDbDataAdapter adapter = provider.CreateDataAdapter ();
adapter.SelectCommand = SelectCommand;
return adapter;
}
static public IDbDataAdapter CreateDataAdapter (string ProviderName)
{
if (ProviderName == null)
throw new System.ArgumentNullException("ProviderName");
Provider provider = providers [ProviderName];
IDbDataAdapter adapter = provider.CreateDataAdapter ();
return adapter;
}
static public IDbDataAdapter CreateDataAdapter (IDbConnection Conn, string SelectCommand)
{
if (Conn == null)
throw new System.ArgumentNullException ("Conn");
if (SelectCommand == null)
throw new System.ArgumentNullException("SelectCommand");
IDbCommand cmd = Conn.CreateCommand ();
cmd.CommandText = SelectCommand;
return CreateDataAdapter (cmd);
}
static public IDbCommand CreateCommand (string ProviderName)
{
if (ProviderName == null)
throw new System.ArgumentNullException("ProviderName");
Provider provider = providers [ProviderName];
return provider.CreateCommand ();
}
static public IDbCommand CreateCommand (IDbConnection Conn)
{
if (Conn == null)
throw new System.ArgumentNullException("Conn");
return Conn.CreateCommand ();
}
}
}
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