在Java中的Rest API应用程序中实现ContainerRequestFilter

Question

我已实施＆＃34; ContainerRequestFilter＆＃34;记录日志文件中的每个请求，其中包括Rest API，现在我的问题是，要同时处理多个请求，这样就不会发生请求丢失，系统不应该由于额外的日志记录而导致停机，所以我们需要做一些具体的事情，或者由内部过滤器处理。

我已经提到了实现类如下。

@Provider
public class CustomLoggingFilter implements ContainerRequestFilter, ContainerResponseFilter{

    final static Logger log = Logger.getLogger(CustomLoggingFilter.class);

    @Context
    private ResourceInfo resourceInfo;

    @Override
    public void filter(ContainerRequestContext requestContext)
            throws IOException {
        MDC.put("start-time", String.valueOf(System.currentTimeMillis()));

        log.info("Entering in Resource : "+requestContext.getUriInfo().getPath());
        log.info("Method Name : "+ resourceInfo.getResourceMethod().getName());
        log.info("Class : "+ resourceInfo.getResourceClass().getCanonicalName());

        readEntityStream(requestContext);
    }

    private void readEntityStream(ContainerRequestContext requestContext){
        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
        final InputStream inputStream = requestContext.getEntityStream();
        final StringBuilder builder = new StringBuilder();

        int read=0;
        final byte[] data = new byte[4096];
        try {
            while ((read = inputStream.read(data)) != -1) {
                outStream.write(data, 0, read);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        byte[] requestEntity = outStream.toByteArray();
        if (requestEntity.length == 0) {
            builder.append("");
        } else {
            builder.append(new String(requestEntity));
        }
        requestContext.setEntityStream(new ByteArrayInputStream(requestEntity) );
        if(null != builder.toString() && builder.toString().trim().length() > 0) {
            log.info("Request Parameter: {}"+builder.toString());
        }
    }

    @Override
    public void filter(ContainerRequestContext requestContext,
            ContainerResponseContext responseContext) throws IOException {
        String stTime = MDC.get("start-time");
        if(null == stTime || stTime.length() == 0) {
            return;
        }
        long startTime = Long.parseLong(stTime);
        long executionTime = System.currentTimeMillis() - startTime;
        log.info("Total request execution time :"+executionTime+" milliseconds");
    }
}