Opens a HTTP connection.
The HTTP method to use is specified in
method, the server is
port, and the path (including
a possible query) is specified using
The path may also contain a URI fragment, which will be ignored.
Host header for the request will be set to the value
port. This can be overridden through the
HttpClientRequest interface before the request is sent. NOTE
host is an IP address this will still be set in the
For additional information on the sequence of events during an HTTP transaction, and the objects returned by the futures, see the overall documentation for the class HttpClient.
Future<HttpClientRequest> open( String method, String host, int port, String path);