private static T valueAt()

in spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/json/MappedObject.java [86:107]

• 22 lines of code
• 9 McCabe index (conditional complexity)

	private static <T> T valueAt(MappedObject root, JsonNode node, Lookup lookup, String expression, Class<T> type) {
		JsonNode result = node.at(expression);
		if (result.isMissingNode() && expression.startsWith("/") && expression.length() > 1
				&& Character.isLowerCase(expression.charAt(1))) {
			StringBuilder alternative = new StringBuilder(expression);
			alternative.setCharAt(1, Character.toUpperCase(alternative.charAt(1)));
			result = node.at(alternative.toString());
		}
		if (type.isInterface() && !type.getName().startsWith("java")) {
			return (T) Proxy.newProxyInstance(MappedObject.class.getClassLoader(), new Class<?>[] { type },
					new MappedInvocationHandler(root, result, lookup));
		}
		if (result.isMissingNode()) {
			return null;
		}
		try {
			return SharedObjectMapper.get().treeToValue(result, type);
		}
		catch (IOException ex) {
			throw new IllegalStateException(ex);
		}
	}