Implement a jank sink healthcheck

nsq/src/main/scala/com.snowplowanalytics.snowplow.collectors.scalastream/sinks/NsqSink.scala

@@ -28,12 +28,13 @@ import scala.concurrent.duration.MILLISECONDS
 import scala.collection.JavaConverters._
 
 import cats.effect.{Resource, Sync}
-// import cats.implicits.catsSyntaxMonadErrorRethrow
 
 // import org.slf4j.LoggerFactory
 
 import com.snowplowanalytics.client.nsq.NSQProducer
 import com.snowplowanalytics.snowplow.collector.core.{Sink}
+import com.snowplowanalytics.client.nsq.exceptions.NSQException
+import java.util.concurrent.TimeoutException
 
 /**
   * NSQ Sink for the Scala Stream Collector
@@ -52,17 +53,29 @@ class NsqSink[F[_]: Sync] private (
   implicit lazy val ec: ExecutionContextExecutorService =
     concurrent.ExecutionContext.fromExecutorService(executorService)
 
-  override def isHealthy: F[Boolean] = Sync[F].pure(true) //TODO: Figure out this implementation
+  var healthStatus = true
+
+  override def isHealthy: F[Boolean] = Sync[F].pure(healthStatus) //TODO: Figure out this implementation
 
   private val producer = new NSQProducer().addAddress(nsqConfig.host, nsqConfig.port).start()
 
+  def produceData(topicName: String, events: List[Array[Byte]]): Unit =
+    try {
+      producer.produceMulti(topicName, events.asJava)
+    } catch {
+      case e @ (_: NSQException | _: TimeoutException) => {
+        healthStatus = false
+        throw e
+      }
+    }
+
   /**
     * Store raw events to the topic
     * @param events The list of events to send
     * @param key The partition key (unused)
     */
   override def storeRawEvents(events: List[Array[Byte]], key: String): F[Unit] =
-    Sync[F].delay(producer.produceMulti(topicName, events.asJava))
+    Sync[F].delay(produceData(topicName, events))
 
   def shutdown(): Unit =
     producer.shutdown()
@@ -83,7 +96,6 @@ object NsqSink {
     val acquire = Sync[F].delay(
       new NsqSink(maxBytes, nsqConfig, topicName, executorService)
     )
-    //.rethrow
 
     val release = (sink: NsqSink[F]) => (Sync[F].delay(sink.shutdown()))