Package org.eclipse.jetty.client

Interface HttpUpgrader

All Known Implementing Classes:

HttpUpgraderOverHTTP, HttpUpgraderOverHTTP2, ProtocolHttpUpgrader

public interface HttpUpgrader

HttpUpgrader prepares a HTTP request to upgrade from one protocol to another, and implements the upgrade mechanism.

The upgrade mechanism can be the HTTP/1.1 upgrade mechanism or the HTTP/2 extended CONNECT mechanism.

Given the differences among mechanism implementations, a request needs to be prepared before being sent to comply with the mechanism requirements (for example, add required headers, etc.).

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	HttpUpgrader.Factory	A factory for HttpUpgraders.

Method Summary

Modifier and Type	Method	Description
void	prepare(HttpRequest request)	Prepares the request for the upgrade, for example by setting the HTTP method or by setting HTTP headers required for the upgrade.
void	upgrade(HttpResponse response, EndPoint endPoint, Callback callback)	Upgrades the given endPoint to a different protocol.

Method Details

prepare

void prepare(HttpRequest request)

Prepares the request for the upgrade, for example by setting the HTTP method or by setting HTTP headers required for the upgrade.

Parameters:

request - the request to prepare

upgrade

void upgrade(HttpResponse response,
 EndPoint endPoint,
 Callback callback)

Upgrades the given endPoint to a different protocol.

The success or failure of the upgrade should be communicated via the given callback.

An exception thrown by this method is equivalent to failing the callback.

Parameters:

response - the response with the information about the upgrade

endPoint - the EndPoint to upgrade

callback - a callback to notify of the success or failure of the upgrade