AWSXRayServletFilter.java 文件源码

public void postFilter(ServletRequest request, ServletResponse response) {
    Segment segment = recorder.getCurrentSegment();
    if (null != segment) {
        HttpServletResponse httpServletResponse = castServletResponse(response);

        if (null != httpServletResponse) {
            Map<String, Object> responseAttributes = new HashMap<String, Object>();

            int responseCode = httpServletResponse.getStatus();
            switch (responseCode/100) {
                case 4:
                    segment.setError(true);
                    if (responseCode == 429) {
                        segment.setThrottle(true);
                    }
                    break;
                case 5:
                    segment.setFault(true);
                    break;
                default:
                    break;
            }
            responseAttributes.put("status", responseCode);


            Optional<Integer> contentLength = getContentLength(httpServletResponse);
            if (contentLength.isPresent()) {
                responseAttributes.put("content_length", contentLength.get());
            }

            segment.putHttp("response", responseAttributes);
        }

        recorder.endSegment();
    }
}