1 files changed, 95 insertions, 0 deletions
diff --git a/netconfsimulator/src/main/java/org/onap/netconfsimulator/websocket/NetconfEndpoint.java b/netconfsimulator/src/main/java/org/onap/netconfsimulator/websocket/NetconfEndpoint.java
new file mode 100644
index 0000000..5870ee1
--- /dev/null
+++ b/netconfsimulator/src/main/java/org/onap/netconfsimulator/websocket/NetconfEndpoint.java
@@ -0,0 +1,95 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Simulator
+ * ================================================================================
+ * Copyright (C) 2019 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.netconfsimulator.websocket;
+
+
+import java.util.Optional;
+import javax.websocket.CloseReason;
+import javax.websocket.Endpoint;
+import javax.websocket.EndpointConfig;
+import javax.websocket.RemoteEndpoint;
+import javax.websocket.Session;
+
+import org.onap.netconfsimulator.kafka.listener.KafkaListenerEntry;
+import org.onap.netconfsimulator.kafka.listener.KafkaListenerHandler;
+import org.onap.netconfsimulator.websocket.message.NetconfMessageListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.kafka.listener.AbstractMessageListenerContainer;
+import org.springframework.kafka.listener.MessageListener;
+import org.springframework.stereotype.Component;
+
+//instance of this class is created every each websocket request
+@Component
+class NetconfEndpoint extends Endpoint {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(NetconfEndpoint.class);
+    private static final String TOPIC_NAME = "config";
+
+    private KafkaListenerHandler kafkaListenerHandler;
+
+    public Optional<KafkaListenerEntry> getEntry() {
+        return entry;
+    }
+
+    public void setEntry(Optional<KafkaListenerEntry> entry) {
+        this.entry = entry;
+    }
+
+    private Optional<KafkaListenerEntry> entry = Optional.empty();
+
+
+    @Autowired
+    NetconfEndpoint(KafkaListenerHandler listenerHandler) {
+        this.kafkaListenerHandler = listenerHandler;
+    }
+
+    @Override
+    public void onOpen(Session session, EndpointConfig endpointConfig) {
+        RemoteEndpoint.Basic basicRemote = session.getBasicRemote();
+
+        addKafkaListener(basicRemote);
+        entry.ifPresent(x -> LOGGER.info("Session with client: {} established", x.getClientId()));
+    }
+
+    @Override
+    public void onError(Session session, Throwable throwable) {
+        LOGGER.error("Unexpected error occurred", throwable);
+    }
+
+    @Override
+    public void onClose(Session session, CloseReason closeReason) {
+        entry.ifPresent(x -> x.getListenerContainer().stop());
+        entry.ifPresent(x -> LOGGER.info("Closing connection for client: {}", x.getClientId()));
+    }
+
+
+    private void addKafkaListener(RemoteEndpoint.Basic remoteEndpoint) {
+        MessageListener messageListener = new NetconfMessageListener(remoteEndpoint);
+
+        KafkaListenerEntry kafkaListener = kafkaListenerHandler.createKafkaListener(messageListener, TOPIC_NAME);
+
+        AbstractMessageListenerContainer listenerContainer = kafkaListener.getListenerContainer();
+        listenerContainer.start();
+        entry = Optional.of(kafkaListener);
+    }
+}