Spring Rolls with cucumber dipping sauce

Name: Spring Rolls with cucumber dipping sauce
Ingredients: * 10-15 shitake mushroom, stem removed, thinly sliced; * 100g rice vermicelli noodle; * 500g chicken or pork mince (optional); * 1 tsp ginger; * 2 garlic clove, crushed; * 2 carrot, peeled and julienned; * 4-5 chinese wombok cabbage leaf, finely shredded; * 2 tsp oyster sauce; * 1 tbsp soy sauce; for the cucumber dipping sauce; * 160 ml water; * 120 ml white vinegar; * 100 g caster sugar; * 1 to 1 1/2 large telegraph cucumber; * 1 red chilli (optional)