public virtual DatabaseInitializationResult Initialize(string connectionName)
{
if (_ignoreConnectionNames.Contains(connectionName))
{
DatabaseInitializationResult result = new DatabaseInitializationResult(null, Args.Exception <Exception>("connection explicitly ignored: {0}", connectionName));
return(result);
}
try
{
if (string.IsNullOrEmpty(connectionName))
{
throw new ArgumentNullException("connectionName");
}
ConnectionStringResolveResult r = ResolveConnectionString(connectionName);
ConnectionStringSettings conn = r.Settings;
if (conn == null)
{
throw new InvalidOperationException(string.Format("The connection name ({0}) was not found in the config file", connectionName));
}
Type factoryType = ResolveFactoryType(conn);
DbProviderFactory factory = factoryType.GetField("Instance").GetValue(null) as DbProviderFactory;
if (factory == null)
{
throw new InvalidOperationException(string.Format("Unable to find Instance field of specified DbProviderFactory ({0})", conn.ProviderName));
}
Database database = GetDatabase(conn, factory);
return(new DatabaseInitializationResult(database));
}
catch (Exception ex)
{
return(new DatabaseInitializationResult(null, ex));
}
}
internal void InitializeDatabase(string connectionName, Dictionary <string, Database> databases)
{
DatabaseInitializationResult dir = DatabaseInitializers.TryInitialize(connectionName);
if (dir.Success)
{
databases.AddMissing(connectionName, dir.Database);
}
else
{
if (FallBack != null && !TriedFallback.Contains(connectionName))
{
TriedFallback.Add(connectionName);
FallBack(connectionName, databases);
InitializeDatabase(connectionName, databases);
}
else
{
throw dir.Exception;
}
}
}
/// <summary>
/// Tries to initialize the database for the specified connectionName using
/// the registered DatabaseInitializers
/// </summary>
/// <param name="connectionName"></param>
/// <returns></returns>
public static DatabaseInitializationResult TryInitialize(string connectionName)
{
List <string> _exceptionMessages = new List <string>();
foreach (IDatabaseInitializer di in _initializers.Values)
{
DatabaseInitializationResult r = di.Initialize(connectionName);
if (r.Success)
{
r.Initializer = di;
return(r);
}
else
{
if (r.Exception != null)
{
_exceptionMessages.Add(r.Exception.Message);
}
}
}
return(new DatabaseInitializationResult(null, new DatabaseInitializationFailedException(_exceptionMessages)));
}
