UpgradeToWebSocketLowLevel

java.lang.Object
- akka.http.javadsl.model.HttpHeader
- - akka.http.scaladsl.model.HttpHeader
  - - akka.http.javadsl.model.headers.CustomHeader
    - - akka.http.scaladsl.model.headers.CustomHeader
      - akka.http.impl.engine.server.InternalCustomHeader
        
        akka.http.impl.engine.ws.UpgradeToWebSocketLowLevel

All Implemented Interfaces:

Renderable, ToStringRenderable, UpgradeToWebSocket, WebSocketUpgrade, UpgradeToWebSocket, WebSocketUpgrade
```
public abstract class UpgradeToWebSocketLowLevel
extends InternalCustomHeader
implements UpgradeToWebSocket, WebSocketUpgrade
```
Currently internal API to handle FrameEvents directly.
INTERNAL API

Nested Class Summary
- Nested classes/interfaces inherited from class akka.http.scaladsl.model.HttpHeader
  HttpHeader.ParsingResult, HttpHeader.ParsingResult$

Constructor Summary

Constructors
Constructor Description

UpgradeToWebSocketLowLevel()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract HttpResponse`	`handleFrames(akka.stream.Graph<akka.stream.FlowShape<FrameEvent,FrameEvent>,java.lang.Object> handlerFlow, scala.Option<java.lang.String> subprotocol)`	The low-level interface to create WebSocket server based on "frames".

Methods inherited from class akka.http.impl.engine.server.InternalCustomHeader
name, renderInRequests, renderInResponses, value

Methods inherited from class akka.http.scaladsl.model.headers.CustomHeader
lowercaseName, render

Methods inherited from class akka.http.scaladsl.model.HttpHeader
fastFind, is, isNot, parse, unapply, unsafeToString

Methods inherited from class akka.http.javadsl.model.HttpHeader
parse

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

Methods inherited from interface akka.http.impl.util.ToStringRenderable
toString

Methods inherited from interface akka.http.scaladsl.model.ws.UpgradeToWebSocket
createScalaFlow, getRequestedProtocols, handleMessages, handleMessagesWith, handleMessagesWith, handleMessagesWith, handleMessagesWith, handleMessagesWithSinkSource, requestedProtocols

Methods inherited from interface akka.http.scaladsl.model.ws.WebSocketUpgrade
getRequestedProtocols, handleMessagesWith, handleMessagesWith, handleMessagesWith, handleMessagesWith

- Constructor Detail
  - UpgradeToWebSocketLowLevel
```
public UpgradeToWebSocketLowLevel()
```
- Method Detail
  - handleFrames
```
public abstract HttpResponse handleFrames(akka.stream.Graph<akka.stream.FlowShape<FrameEvent,FrameEvent>,java.lang.Object> handlerFlow,
                                          scala.Option<java.lang.String> subprotocol)
```
    The low-level interface to create WebSocket server based on "frames". The user needs to handle control frames manually in this case.
    Returns a response to return in a request handler that will signal the low-level HTTP implementation to upgrade the connection to WebSocket and use the supplied handler to handle incoming WebSocket frames.
    INTERNAL API (for now)
    
    Parameters:
    
    handlerFlow - (undocumented)
    
    subprotocol - (undocumented)
    
    Returns:
    
    (undocumented)