HttpServerHandler (Spring Cloud Sleuth API 3.1.10 API)

```
public interface HttpServerHandler
```
This API is taken from OpenZipkin Brave. This standardizes a way to instrument http servers, particularly in a way that encourages use of portable customizations via HttpRequestParser and HttpResponseParser.

Since:

3.0.0

Author:

OpenZipkin Brave Authors, Marcin Grzejszczak

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Span`	`handleReceive(HttpServerRequest request)`	Conditionally joins a span, or starts a new trace, depending on if a trace context was extracted from the request.
`void`	`handleSend(HttpServerResponse response, Span span)`	Finishes the server span after assigning it tags according to the response or error.

- Method Detail
  - handleReceive
```
Span handleReceive(HttpServerRequest request)
```
    Conditionally joins a span, or starts a new trace, depending on if a trace context was extracted from the request. Tags are added before the span is started.
    
    Parameters:
    
    request - HTTP request
    
    Returns:
    
    server side span (either joined or a new trace)
  - handleSend
```
void handleSend(HttpServerResponse response,
                Span span)
```
    Finishes the server span after assigning it tags according to the response or error.
    
    Parameters:
    
    response - HTTP response
    
    span - server side span to end