WsHttpUpgradeHandler (Apache Tomcat 8.5.20 API Documentation)

org.apache.tomcat.websocket.server

## Class WsHttpUpgradeHandler

- java.lang.Object
- - org.apache.tomcat.websocket.server.WsHttpUpgradeHandler

- All Implemented Interfaces:
    HttpUpgradeHandler, InternalHttpUpgradeHandler

      public class WsHttpUpgradeHandler
      extends Object
      implements InternalHttpUpgradeHandler

  Servlet 3.1 HTTP upgrade handler for WebSocket connections.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `WsHttpUpgradeHandler()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `destroy()` This method is called after the upgraded connection has been closed.
    `void` | `init(WebConnection connection)` This method is called once the request/response pair where `HttpServletRequest.upgrade(Class)` is called has completed processing and is the point where control of the connection passes from the container to the `HttpUpgradeHandler`.
    `void` | `pause()`
    `void` | `preInit(Endpoint ep, EndpointConfig endpointConfig, WsServerContainer wsc, WsHandshakeRequest handshakeRequest, List<Extension> negotiatedExtensionsPhase2, String subProtocol, Transformation transformation, Map<String,String> pathParameters, boolean secure)`
    `void` | `setSocketWrapper(SocketWrapperBase<?> socketWrapper)`
    `void` | `setSslSupport(SSLSupport sslSupport)`
    `AbstractEndpoint.Handler.SocketState` | `upgradeDispatch(SocketEvent status)`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### WsHttpUpgradeHandler

          public WsHttpUpgradeHandler()

  - ### Method Detail

    - #### setSocketWrapper

          public void setSocketWrapper(SocketWrapperBase<?> socketWrapper)

      Specified by:
        `setSocketWrapper` in interface `InternalHttpUpgradeHandler`

    - #### preInit

          public void preInit(Endpoint ep,
                     EndpointConfig endpointConfig,
                     WsServerContainer wsc,
                     WsHandshakeRequest handshakeRequest,
                     List<Extension> negotiatedExtensionsPhase2,
                     String subProtocol,
                     Transformation transformation,
                     Map<String,String> pathParameters,
                     boolean secure)

    - #### init

          public void init(WebConnection connection)

      Description copied from interface: `javax.servlet.http.HttpUpgradeHandler`
      This method is called once the request/response pair where `HttpServletRequest.upgrade(Class)` is called has completed processing and is the point where control of the connection passes from the container to the `HttpUpgradeHandler`.
      Specified by:
        `init` in interface `HttpUpgradeHandler`
      Parameters:
        `connection` - The connection that has been upgraded

    - #### upgradeDispatch

          public AbstractEndpoint.Handler.SocketState upgradeDispatch(SocketEvent status)

      Specified by:
        `upgradeDispatch` in interface `InternalHttpUpgradeHandler`

    - #### pause

          public void pause()

      Specified by:
        `pause` in interface `InternalHttpUpgradeHandler`

    - #### destroy

          public void destroy()

      Description copied from interface: `javax.servlet.http.HttpUpgradeHandler`
      This method is called after the upgraded connection has been closed.
      Specified by:
        `destroy` in interface `HttpUpgradeHandler`

    - #### setSslSupport

          public void setSslSupport(SSLSupport sslSupport)

      Specified by:
        `setSslSupport` in interface `InternalHttpUpgradeHandler`

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