Actually enable STOMP heart beats

1 files changed, 10 insertions, 1 deletions

diff --git a/sw-server/src/main/kotlin/org/luxons/sevenwonders/server/config/WebSocketConfig.kt b/sw-server/src/main/kotlin/org/luxons/sevenwonders/server/config/WebSocketConfig.kt
index dd4c4b15..1911f5b9 100644
--- a/sw-server/src/main/kotlin/org/luxons/sevenwonders/server/config/WebSocketConfig.kt
+++ b/sw-server/src/main/kotlin/org/luxons/sevenwonders/server/config/WebSocketConfig.kt
@@ -5,6 +5,7 @@ import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 import org.springframework.messaging.simp.config.ChannelRegistration
 import org.springframework.messaging.simp.config.MessageBrokerRegistry
+import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler
 import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker
 import org.springframework.web.socket.config.annotation.StompEndpointRegistry
 import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer
@@ -18,13 +19,21 @@ class WebSocketConfig(
 
     override fun configureMessageBroker(config: MessageBrokerRegistry) {
         // prefixes for all subscriptions
-        config.enableSimpleBroker("/queue", "/topic")
+        config.enableSimpleBroker("/queue", "/topic").apply {
+            setTaskScheduler(createTaskScheduler()) // to support heart beats
+        }
         config.setUserDestinationPrefix("/user")
 
         // /app for normal calls, /topic for subscription events
         config.setApplicationDestinationPrefixes("/app", "/topic")
     }
 
+    private fun createTaskScheduler() = ThreadPoolTaskScheduler().apply {
+        poolSize = 1
+        threadNamePrefix = "stomp-heartbeat-thread-"
+        initialize()
+    }
+
     override fun registerStompEndpoints(registry: StompEndpointRegistry) {
         registry.addEndpoint(SEVEN_WONDERS_WS_ENDPOINT)
             .setHandshakeHandler(handshakeHandler())