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Reconnect failures delegated to TcpConnectionHandler 

When connecting with a ReconnectStrategy we can only report the outcome
of the first connect to the ListenableFuture<Void> return value.

Failures for all subsequent attempts to reconnect however must be
channeled to TcpConnectHandler#afterConnectFailure which is used in
the STOMP broker relay for example to publish
BroadcastAvailability(true/false) events.
This commit is contained in:
Rossen Stoyanchev 2016-12-28 16:35:12 -05:00
parent ea274ebc0a
commit 698c885e06
1 changed files with 7 additions and 4 deletions
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11
spring-messaging/src/main/java/org/springframework/messaging/tcp/reactor/ReactorNettyTcpClient.java
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@ -116,12 +116,15 @@ public class ReactorNettyTcpClient<P> implements TcpOperations<P> {
return handleShuttingDownConnectFailure(handler); return handleShuttingDownConnectFailure(handler);
} }
// Report first connect to the ListenableFuture
MonoProcessor<Void> connectMono = MonoProcessor.create(); MonoProcessor<Void> connectMono = MonoProcessor.create();
this.tcpClient this.tcpClient
.newHandler(new ReactorNettyHandler(handler)) .newHandler(new ReactorNettyHandler(handler))
.doOnNext(connectFailureConsumer(connectMono)) .doOnNext(updateConnectMono(connectMono))
.doOnError(connectFailureConsumer(connectMono)) .doOnError(updateConnectMono(connectMono))
.then(NettyContext::onClose) .doOnError(handler::afterConnectFailure) // report all connect failures to the handler
.then(NettyContext::onClose) // post-connect issues
.retryWhen(reconnectFunction(strategy)) .retryWhen(reconnectFunction(strategy))
.repeatWhen(reconnectFunction(strategy)) .repeatWhen(reconnectFunction(strategy))
.subscribe(); .subscribe();
@ -135,7 +138,7 @@ public class ReactorNettyTcpClient<P> implements TcpOperations<P> {
return new MonoToListenableFutureAdapter<>(Mono.error(ex)); return new MonoToListenableFutureAdapter<>(Mono.error(ex));
} }
private <T> Consumer<T> connectFailureConsumer(MonoProcessor<Void> connectMono) { private <T> Consumer<T> updateConnectMono(MonoProcessor<Void> connectMono) {
return o -> { return o -> {
if (!connectMono.isTerminated()) { if (!connectMono.isTerminated()) {
if (o instanceof Throwable) { if (o instanceof Throwable) {