public Device resolveDevice()

in app/src/main/java/org/apache/roller/weblogger/ui/rendering/util/mobile/LiteDeviceResolver.java [66:129]
55 lines of code
23 McCabe index (conditional complexity)

	public Device resolveDevice(HttpServletRequest request) {
		String userAgent = request.getHeader("User-Agent");
		// UserAgent keyword detection of Normal devices
		if (userAgent != null) {
			userAgent = userAgent.toLowerCase();
			for (String keyword : normalUserAgentKeywords) {
				if (userAgent.contains(keyword)) {
					return resolveFallback(request);
				}
			}
		}
		// UserAgent keyword detection of Tablet devices
		if (userAgent != null) {
			userAgent = userAgent.toLowerCase();
			// Android special case
			if (userAgent.contains("android") && !userAgent.contains("mobile")) {
				return LiteDevice.TABLET_INSTANCE;
			}
			// Kindle Fire special case
			if (userAgent.contains("silk") && !userAgent.contains("mobile")) {
				return LiteDevice.TABLET_INSTANCE;
			}
			for (String keyword : tabletUserAgentKeywords) {
				if (userAgent.contains(keyword)) {
					return LiteDevice.TABLET_INSTANCE;
				}
			}
		}
		// UAProf detection
		if (request.getHeader("x-wap-profile") != null
				|| request.getHeader("Profile") != null) {
			return LiteDevice.MOBILE_INSTANCE;
		}
		// User-Agent prefix detection
		if (userAgent != null && userAgent.length() >= 4) {
			String prefix = userAgent.substring(0, 4).toLowerCase();
			if (mobileUserAgentPrefixes.contains(prefix)) {
				return LiteDevice.MOBILE_INSTANCE;
			}
		}
		// Accept-header based detection
		String accept = request.getHeader("Accept");
		if (accept != null && accept.contains("wap")) {
			return LiteDevice.MOBILE_INSTANCE;
		}
		// UserAgent keyword detection for Mobile devices
		if (userAgent != null) {
			for (String keyword : mobileUserAgentKeywords) {
				if (userAgent.contains(keyword)) {
					return LiteDevice.MOBILE_INSTANCE;
				}
			}
		}
		// OperaMini special case
		@SuppressWarnings("rawtypes")
		Enumeration headers = request.getHeaderNames();
		while (headers.hasMoreElements()) {
			String header = (String) headers.nextElement();
			if (header.contains("OperaMini")) {
				return LiteDevice.MOBILE_INSTANCE;
			}
		}
		return resolveFallback(request);
	}