Before this change the SockJsWebSocketHandler precluded determination
of the sub-protocols by wrapping the actual target handler.
After this change SockJsWebSocketHandler implements SubProtocolCapable
and returns the list of sub-protocols from the wrapped handler.
Before this change the DefaultHandshakeHandler by default passed the
list of requested WebSocket extensions as-is relying on the WebSocket
engine to remove those not supported.
This change ensures that WebSocket extensions not supported by the
runtime are proactively removed instead.
This change is preparation for SPR-11094.
This change adds a WebSocketTestServer setup method that initializes
the server and obtains a new port.
In turn AbstractWebSocketIntegrationTests invokes the new method from
its setup method thus ensuring a new port is used on every test.
In order to be able to use separators like "." (used by default
by most broker relays) instead of "/" for destination patterns
handling, the PathMatcher used in spring-messaging can now
be customized easily thanks to XML websocket namespace
or JavaConfig.
AntPathMatcher has been updated in order to use the configured path
separator instead of an hardcoded "/" for path concatenation.
Extension handling is now disabled when the "." separator is configured.
Issue: SPR-11660
Before this change WebSocketConnectionManager delegated SmartLifecycle
methods to the client instance it contained. After this change
WebSocketClient implementations are expected to implement Lifecycle
(rather than SmartLifecycle).
The need for this is even more evident with SockJsClient, which is a
WebSocketClient implementation and contains a WebSocketTransport that
in turn contains the actual WebSocketClient. In this case
WebSocketConnectionManager as the top level container is the obvious
place to configure autostartup while Lifecycle events can be
propagated all the way down to the root WebSocketClient.
This change removes most logging at INFO level and also ensures the
amount of information logged at DEBUG level is useful, brief, and
not duplicated.
Also added is custom logging for STOMP frames to ensure very readable
and consise output.
Issue: SPR-11934
This change adds collection of stats in key infrastructure components
of the WebSocket message broker config setup and exposes the gathered
information for logging and viewing (e.g. via JMX).
WebSocketMessageBrokerStats is a single class that assembles all
gathered information and by default logs it once every 15 minutes.
Application can also easily expose to JMX through an MBeanExporter.
A new section in the reference documentation provides a summary of
the available information.
Issue: SPR-11739
This change removes the recently added SockJsThreadPoolTaskScheduler
and instead builds support for the removeOnCancelPolicy property in
ThreadPoolTaskScheduler and ScheduledExecutorFactoryBean.
Issue: SPR-11918
Update WebSocketSession toString methods to include the handshake URI
and add id and URI fields to ensure they're available after close().
Log WebSocket session open and close events at INFO.
Remove trace messages for destinations that do not match.
Issue: SPR-11884
Optimize logging with tracking the opening and closing of WebSocket
sessions and STOMP broker connections in mind.
While the volume of messages makes it impractical to log every message
at anything higher than TRACE, the opening and closing of connections
is more manageable and can be logged at INFO. This makes it possible to
drop to INFO in production and get useful information without getting
too much in a short period of time.
The logging is also optimized to avoid providing the same information
from multiple places since messages pass through multiple layers.
Issue: SPR-11884
Prior to this commit, the ServletResponseHttpHeaders.get method
would throw an NPE when used under Wildfly 8.0.0.Final and 8.1.0.Final.
This can be traced to WFLY-3474, which throws an NPE when calling
HttpServletResponse.getHeaders("foo") and that header has not
been defined prior to that.
This would cause NPE being thrown by AbstractSockJsService when
checking for CORS HTTP headers in the server HTTP response.
This commit surrounds that method call in AbstractSockJsService and
guards against this issue.
Issue: SPR-11919
In a recent CI build failure a test timed out waiting for a message:
https://build.spring.io/browse/SPR-PUB-1316
In fact there was a WebSocket transport failure originating in Jetty's
WebSocket Parser. However this failure is only apparent by looking at
the logs. This change adds a check if a transport error ocurred while
we were waiting and throws an AssertionError.
Sessions connected to a STOMP endpoint are expected to receive some
client messages. Having received none after successfully connecting
could be an indication of proxy or network issue. This change adds
periodic checks to see if we have not received any messages on a
session which is an indication the session isn't going anywhere
most likely due to a proxy issue (or unreliable network) and close
those sessions.
Issue: SPR-11884
This change sets the removeOnCancelPolicy on the SockJS
ScheduledThreadPoolExecutor to true. This ensures that cancelled
tasks are removed immediately to avoid the "unbounded retention
of cancelled tasks" that is mentioned in the Javadoc of
ScheduledThreadPoolExecutor:
"By default, such a cancelled task is not automatically removed from
the work queue until its delay elapses. While this enables further
inspection and monitoring, it may also cause unbounded retention of
cancelled tasks. To avoid this, set setRemoveOnCancelPolicy to true,
which causes tasks to be immediately removed from the work queue at
time of cancellation."
Issue: SPR-11918
This change ensures the server "WebSocketHandler" is notified of the
opening of a session before writing the open frame to the remote
handler. Any messages sent by the server "WebSocketHandler" while
getting notified of the opening get cached and flushed after the open
frame has been written.
This change introduces locking in AbtractHttpSockJsSession to guard
access to the HTTP response. The goal is to prevent contention between
client requests to receive messages (i.e. long polling) and
the application trying to write.
Issue: SPR-11916
This change adds a new implementation of WebSocketClient that can
connect to a SockJS server using one of the SockJS transports
"websocket", "xhr_streaming", or "xhr". From a client perspective
there is no implementation difference between "xhr_streaming" and
"xhr". Just keep receiving and when the response is complete,
start over. Other SockJS transports are browser specific
and therefore not relevant in Java ("eventsource", "htmlfile" or
iframe based variations).
The client loosely mimics the behavior of the JavaScript SockJS client.
First it sends an info request to find the server capabilities,
then it tries to connect with each configured transport, falling
back, or forcing a timeout and then falling back, until one of the
configured transports succeeds.
The WebSocketTransport can be configured with any Spring Framework
WebSocketClient implementation (currently JSR-356 or Jetty 9).
The XhrTransport currently has a RestTemplate-based and a Jetty
HttpClient-based implementations. To use those to simulate a large
number of users be sure to configure Jetty's HttpClient executor
and maxConnectionsPerDestination to high numbers. The same is true
for whichever underlying HTTP library is used with the RestTemplate
(e.g. maxConnPerRoute and maxConnTotal in Apache HttpComponents).
Issue: SPR-10797
This change adds support for a custom "websocket" scope.
WebSocket-scoped beans may be injected into controllers with message
handling methods as well as channel interceptor registered on the
"inboundClientChannel".
Issue: SPR-11305
Before this change, subscribing to a user destination and use of
@SendToUser annotation required an authenticated user.
This change makes it possible to subscribe to a user destination from
WebSocket sessions without an authenticated user. In such cases the
destination is associated with one session only rather than with a
user (and all their sessions).
It is then also possible to send a message to a user destination
via "/user/{sessionId}/.." rather than "/user/{user}/...".
That means @SendToUser works relying on the session id of the input
message, effectively sending a reply to destination private to the
session.
A key use case for this is handling an exception with an
@MessageExceptionHandler method and sending a reply with @SendToUser.
Issue: SPR-11309
The original fix for SPR-11423:
32e5f57e64
was insufficient when using an external broker since the original
destination header has to be in the "native headers" map (i.e. with
STOMP headers) in order to be included in messages broadcast by
the broker.
Mutate rather than re-create headers when decoding STOMP messages
before a message is sent on a message channel.
Use MessageBuilder.createMessage to ensure the fully prepared
MessageHeaders is used directly MessageHeaderAccessor instance.
Issue: SPR-11468
Refine semantics of ID and TIMESTAMP headers provided to protected
MessageHeaders constructor.
Refactor internal implementation of MessageHeaderAccessor.
Support mutating headers from a single thread while a message is being
built (e.g. StompDecoder creating message + then adding session id).
Improve immutablity in NativeMessageHeaderAccessor and in
StompHeaderAccessor.
Optimize object creation for initializing messages and subsequent
accessing their headers.
Introduce MessageHeaderAccessorFactory support to enable applying a
common strategies for ID and TIMESTAMP generation to every message.
Add MessageBuilder shortcut factory method for creating messages from
payload and a full-prepared MessageHeaders instance. Also add
equivalent constructors to GenericMessage and ErrorMessage.
Issue: SPR-11468
The UserDestinationMessageHandler adds a header providing a hint for
what the original destination a user may have used when subscribing.
That is then used when writing messages back to WebSocket clients to
ensure they dont see the internally used, transformed user destination.
This change moves the header name constatn to make it more broadly
applicable. For example SPR-11645.
Prior to this commit, @SubscribeMapping mapped methods (backed with
@SendTo* annotations, or not) would send MESSAGEs with the wrong
destination. Instead of using the original SUBSCRIBE destination, it
would use the lookup path computed from the configured prefixes in the
application.
This commit fixes this issue - now @SubscribeMapping MESSAGEs use the
original SUBSCRIBE destination.
Issue: SPR-11648
