public static class ClientEndpointConfig.Configurator
The Configurator class may be extended by developers who want to provide custom configuration algorithms, such as
intercepting the opening handshake, or providing arbitrary methods and algorithms that can be accessed from each
endpoint instance configured with this configurator.
This method is called by the implementation after it has formulated the handshake request that will be used
to initiate the connection to the server, but before it has sent any part of the request. This allows the
developer to inspect and modify the handshake request headers prior to the start of the handshake
headers - the mutable map of handshake request headers the implementation is about to send to start the
This method is called by the implementation after it has received a handshake response from the server as a
result of a handshake interaction it initiated. The developer may implement this method in order to inspect
the returning handshake response.