MutatingResourceBanner Class — spring-boot Architecture

Source Code

core/spring-boot/src/test/java/org/springframework/boot/ResourceBannerTests.java lines 215–242

	static class MutatingResourceBanner extends MockResourceBanner {

		MutatingResourceBanner(Resource resource, String bootVersion, @Nullable String applicationTitle) {
			super(resource, bootVersion, applicationTitle);
		}

		@Override
		protected List<PropertyResolver> getPropertyResolvers(Environment environment, @Nullable Class<?> sourceClass) {
			List<PropertyResolver> resolvers = super.getPropertyResolvers(environment, sourceClass);
			PropertyResolver resolver = new AbstractPropertyResolver() {

				@Override
				@SuppressWarnings("unchecked")
				public <T> @Nullable T getProperty(String key, Class<T> targetType) {
					return String.class.equals(targetType) ? (T) getPropertyAsRawString(key) : null;
				}

				@Override
				protected @Nullable String getPropertyAsRawString(String key) {
					return ("foo".equals(key)) ? "bar" : null;
				}

			};
			resolvers.add(resolver);
			return resolvers;
		}

	}