Style Type — spring-boot Architecture

Source Code

core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionMessage.java lines 405–447

	public enum Style {

		/**
		 * Render with normal styling.
		 */
		NORMAL {

			@Override
			protected @Nullable Object applyToItem(@Nullable Object item) {
				return item;
			}

		},

		/**
		 * Render with the item surrounded by quotes.
		 */
		QUOTE {

			@Override
			protected @Nullable String applyToItem(@Nullable Object item) {
				return (item != null) ? "'" + item + "'" : null;
			}

		};

		public @Nullable Collection<?> applyTo(@Nullable Collection<?> items) {
			if (items == null) {
				return null;
			}
			List<Object> result = new ArrayList<>(items.size());
			for (Object item : items) {
				Object applied = applyToItem(item);
				if (applied != null) {
					result.add(applied);
				}
			}
			return result;
		}

		protected abstract @Nullable Object applyToItem(@Nullable Object item);

	}