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93520df3f9
+ Since SCI adds filters, but init() isn't run till later, that means the context attribute for the WebSocketUpgradeFilter isn't present during jsr356 runs. Added ability for manual filter creation to call setToAttribute() as a pre-init step, allowing the init() itself to bypass the set to attribute for that specific filter instance. + This also means ServletException is now thrown out from the various configureContext() static methods.
This is the jetty websocket module that provides a websocket server and the skeleton of a websocket client.
By default websockets is included with a jetty release (with these classes either being in the jetty-websocket jar or in
an aggregate jar (see below).
In order to accept a websocket connection, the websocket handshake request is first routed to normal HTTP request
handling, which must respond with a 101 response and an instance of WebSocketConnection set as the
"org.eclipse.jetty.io.Connection" request attribute. The accepting behaviour is provided by WebSocketHandler or the
WebSocketServlet class, both of which delegate to the WebSocketFactory class.
A TestServer and TestClient class are available, and can be run either directly from an IDE (if jetty source is
imported), or from the command line with
java -cp jetty-aggregate/jetty-all/target/jetty-all-7.x.y.jar:jetty-distribution/target/distribution/lib/servlet-api-2.5.jar
org.eclipse.jetty.websocket.TestServer --help
java -cp jetty-aggregate/jetty-all/target/jetty-all-7.x.y.jar:jetty-distribution/target/distribution/lib/servlet-api-2.5.jar
org.eclipse.jetty.websocket.TestClient --help
Without a protocol specified, the client will just send/receive websocket PING/PONG packets. A protocol can be specified for testing other
aspects of websocket. Specifically the server and client understand the following protocols:
org.ietf.websocket.test-echo
Websocket messages are sent by the client and the server will echo every frame.
org.ietf.websocket.test-echo-broadcast
Websocket messages are sent by the client and the server will echo every frame to every connection.
org.ietf.websocket.test-echo-assemble
Websocket messages are sent by the client and the server will echo assembled messages as a single frame.
org.ietf.websocket.test-echo-fragment
Websocket messages are sent and the server will echo each message fragmented into 2 frames.