private IEnumerable <string> GetAppContextObjectNameListFromType(Type type)
{
var objectNameList = _applicationContext.GetObjectNamesForType(type);
if (objectNameList.Count > 1)
{
throw new NotSupportedException("The case where there is more than one object for a single type is " +
"not yet supported");
}
return(objectNameList);
}
/// <summary>
/// Gets the Spring IDbProvider given the ISessionFactory.
/// </summary>
/// <remarks>The matching is performed by comparing the assembly qualified
/// name string of the hibernate Driver.ConnectionType to those in
/// the DbProviderFactory definitions. No connections are created
/// in performing this comparison.</remarks>
/// <param name="sessionFactory">The session factory.</param>
/// <returns>The corresponding IDbProvider, null if no mapping was found.</returns>
/// <exception cref="InvalidOperationException">If DbProviderFactory's ApplicaitonContext is not
/// an instance of IConfigurableApplicaitonContext.</exception>
public static IDbProvider GetDbProvider(ISessionFactory sessionFactory)
{
ISessionFactoryImplementor sfi = sessionFactory as ISessionFactoryImplementor;
if (sfi != null)
{
IConnectionProvider cp = sfi.ConnectionProvider as IConnectionProvider;
if (cp != null)
{
IConfigurableApplicationContext ctx =
Spring.Data.Common.DbProviderFactory.ApplicationContext as IConfigurableApplicationContext;
if (ctx == null)
{
throw new InvalidOperationException(
"Implementations of IApplicationContext must also implement IConfigurableApplicationContext");
}
#if NET_1_1
DriverBase db = cp.Driver as DriverBase;
#else
IDriver db = cp.Driver;
#endif
if (db != null)
{
Type hibCommandType = db.CreateCommand().GetType();
string[] providerNames = ctx.GetObjectNamesForType(typeof(DbProvider), true, false);
string hibCommandAQN = hibCommandType.AssemblyQualifiedName;
foreach (string providerName in providerNames)
{
IObjectDefinition objectdef = ctx.ObjectFactory.GetObjectDefinition(providerName);
ConstructorArgumentValues ctorArgs = objectdef.ConstructorArgumentValues;
ConstructorArgumentValues.ValueHolder vh = ctorArgs.NamedArgumentValues["dbmetadata"] as ConstructorArgumentValues.ValueHolder;
IObjectDefinition od = ((ObjectDefinitionHolder)vh.Value).ObjectDefinition;
ConstructorArgumentValues dbmdCtorArgs = od.ConstructorArgumentValues;
string commandType = dbmdCtorArgs.GetArgumentValue("commandType", typeof(string)).Value as string;
if (hibCommandAQN.Equals(commandType))
{
IDbProvider prov = Spring.Data.Common.DbProviderFactory.GetDbProvider(providerName);
return(prov);
}
}
}
else
{
log.Info("Could not derive IDbProvider from SessionFactory");
}
}
}
return(null);
}
