1 files changed, 61 insertions, 0 deletions
diff --git a/src/main/java/org/onap/avcnmanager/kafka/stream/AVCNKafkaStream.java b/src/main/java/org/onap/avcnmanager/kafka/stream/AVCNKafkaStream.java
new file mode 100644
index 0000000..dfc7912
--- /dev/null
+++ b/src/main/java/org/onap/avcnmanager/kafka/stream/AVCNKafkaStream.java
@@ -0,0 +1,61 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Simulator
+ * ================================================================================
+ * Copyright (C) 2021 Nokia. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.avcnmanager.kafka.stream;
+
+import org.apache.kafka.streams.KafkaStreams;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+
+
+@Component
+public class AVCNKafkaStream {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(AVCNKafkaStream.class);
+
+    private final KafkaStreams streams;
+
+    @Autowired
+    AVCNKafkaStream(KafkaStreams streams) {
+        this.streams = streams;
+        streams.setUncaughtExceptionHandler(this::handleExceptionInStreams);
+    }
+
+    @PostConstruct
+    void startKafkaStream() {
+        streams.start();
+    }
+
+    private void handleExceptionInStreams(Thread thread,Throwable throwable) {
+        LOGGER.warn("Exception occurred int kafka stream: " + thread);
+        LOGGER.debug(throwable.getMessage());
+        if(!streams.state().isRunning()) {
+            LOGGER.error("Kafka stream stop running, state: " + streams.state());
+            streams.close();
+            System.exit(1);
+        }
+    }
+}
+
+