WebSocketEngine.UpgradeInfo (Tyrus 2.1.5 API)

Enclosing interface:

WebSocketEngine
```
public static interface WebSocketEngine.UpgradeInfo
```
Upgrade info that includes status for HTTP request upgrading and connection creation details.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Connection`	`createConnection(Writer writer, Connection.CloseListener closeListener)`	Creates a connection if the upgrade is successful.
`WebSocketEngine.UpgradeStatus`	`getStatus()`	Returns the status of HTTP request upgrade.

- Method Detail
  - getStatus
```
WebSocketEngine.UpgradeStatus getStatus()
```
    Returns the status of HTTP request upgrade.
    
    Returns:
    
    status of the upgrade.
  - createConnection
```
Connection createConnection(Writer writer,
                            Connection.CloseListener closeListener)
```
    Creates a connection if the upgrade is successful. Tyrus would call onConnect lifecycle method on the endpoint during the invocation of this method.
    
    Parameters:
    
    writer - transport writer that actually writes tyrus websocket data to underlying connection.
    
    closeListener - transport listener for receiving tyrus close notifications.
    
    Returns:
    
    upgraded connection if the upgrade is successful otherwise null.