Vegetable stew with herby dumplings

Name: Vegetable stew with herby dumplings
Ingredients: 1 tbsp olive oil; 350g shallot, peeled; 2 leeks, thickly sliced; ½ swede, chopped into chunks; 2 parsnips, quartered; 350g Chantenay carrot; 175g pearl barley; 225ml white wine; 1l vegetable stock; 1 bay leaf; 3 sprigs thyme; small bunch parsley, finely chopped; 100g self-raising flour; 50g unsalted butter; 50g mature cheddar cheese, grated; 2 tsp finely chopped fresh rosemary; 1 tsp fresh thyme leaves