/// <summary>
/// Gets framework and provider specific information
///
/// This method should never return null.
/// </summary>
/// <param name="informationType">The name of the information to be retrieved.</param>
/// <returns>An XmlReader at the begining of the information requested.</returns>
public XmlReader GetInformation(string informationType)
{
XmlReader reader = null;
try
{
reader = GetDbInformation(informationType);
}
catch (Exception e)
{
// we should not be wrapping all exceptions
if (EntityUtil.IsCatchableExceptionType(e))
{
// we don't want folks to have to know all the various types of exceptions that can
// occur, so we just rethrow a ProviderIncompatibleException and make whatever we caught
// the inner exception of it.
throw EntityUtil.ProviderIncompatible(
System.Data.Entity.Strings.EntityClient_FailedToGetInformation(informationType), e);
}
throw;
}
if (reader == null)
{
// if the provider returned null for the conceptual schema definition, return the default one
if (informationType == ConceptualSchemaDefinitionVersion3 ||
informationType == ConceptualSchemaDefinition)
{
return(DbProviderServices.GetConceptualSchemaDefinition(informationType));
}
throw EntityUtil.ProviderIncompatible(System.Data.Entity.Strings.ProviderReturnedNullForGetDbInformation(informationType));
}
return(reader);
}
