CapturedHttpHeaders (instrumentation-api 1.9.1-alpha API)

java.lang.Object
- io.opentelemetry.instrumentation.api.instrumenter.http.CapturedHttpHeaders

```
public abstract class CapturedHttpHeaders
extends Object
```
Represents the configuration that specifies which HTTP request and response headers should be captured as span attributes as described in HTTP semantic conventions.
The HTTP request header values will be captured under the http.request.header.<name> attribute key. The HTTP response header values will be captured under the http.response.header.<name> attribute key. The <name> part in the attribute key is the normalized header name: lowercase, with dashes replaced by underscores.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static CapturedHttpHeaders`	`client(Config config)`	Returns a configuration that captures HTTP client request and response headers as configured in the received `config`.
`static CapturedHttpHeaders`	`create(List<String> capturedRequestHeaders, List<String> capturedResponseHeaders)`	Returns a configuration that captures chosen HTTP request and response headers.
`static CapturedHttpHeaders`	`empty()`	Returns a configuration that does not capture any HTTP headers as span attributes.
`abstract List<String>`	`requestHeaders()`	Returns the list of HTTP request header names that are to be captured as span attributes.
`abstract List<String>`	`responseHeaders()`	Returns the list of HTTP response header names that are to be captured as span attributes.
`static CapturedHttpHeaders`	`server(Config config)`	Returns a configuration that captures HTTP server request and response headers as configured in the received `config`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - empty
```
public static CapturedHttpHeaders empty()
```
    Returns a configuration that does not capture any HTTP headers as span attributes.
  - client
```
public static CapturedHttpHeaders client(Config config)
```
    Returns a configuration that captures HTTP client request and response headers as configured in the received config.
  - server
```
public static CapturedHttpHeaders server(Config config)
```
    Returns a configuration that captures HTTP server request and response headers as configured in the received config.
  - create
```
public static CapturedHttpHeaders create(List<String> capturedRequestHeaders,
                                         List<String> capturedResponseHeaders)
```
    Returns a configuration that captures chosen HTTP request and response headers.
    
    Parameters:
    
    capturedRequestHeaders - A list of HTTP request header names that are to be captured as span attributes.
    
    capturedResponseHeaders - A list of HTTP response header names that are to be captured as span attributes.
  - requestHeaders
```
public abstract List<String> requestHeaders()
```
    Returns the list of HTTP request header names that are to be captured as span attributes.
  - responseHeaders
```
public abstract List<String> responseHeaders()
```
    Returns the list of HTTP response header names that are to be captured as span attributes.