1 files changed, 69 insertions, 0 deletions
diff --git a/components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/dmaap/IntelligentSlicingCallback.java b/components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/dmaap/IntelligentSlicingCallback.java
new file mode 100644
index 00000000..dd6760ba
--- /dev/null
+++ b/components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/dmaap/IntelligentSlicingCallback.java
@@ -0,0 +1,69 @@
+/*******************************************************************************
+ *  ============LICENSE_START=======================================================
+ *  slice-analysis-ms
+ *  ================================================================================
+ *   Copyright (C) 2020 Wipro Limited.
+ *   ==============================================================================
+ *     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.slice.analysis.ms.dmaap;
+
+import java.io.IOException;
+
+import org.onap.slice.analysis.ms.models.MLOutputModel;
+import org.onap.slice.analysis.ms.service.MLMessageProcessor;
+import org.onap.slice.analysis.ms.utils.BeanUtil;
+import org.slf4j.Logger;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+/**
+ * Handles Notification on dmaap for ML ms events
+ */
+public class IntelligentSlicingCallback implements NotificationCallback {
+	private static final Logger log = org.slf4j.LoggerFactory.getLogger(IntelligentSlicingCallback.class);
+	private MLMessageProcessor mlMsMessageProcessor;
+
+	public IntelligentSlicingCallback() {
+		mlMsMessageProcessor = BeanUtil.getBean(MLMessageProcessor.class);
+	}
+
+	/**
+	 * Trigger on Notification from ML ms
+	 */
+	@Override
+	public void activateCallBack(String msg) {
+		handlePolicyNotification(msg);
+	}
+
+	/**
+	 * Parse and take actions on reception of Notification from ML ms
+	 * @param msg
+	 */
+	private void handlePolicyNotification(String msg) {
+		log.info("Message received from ML ms: {}" ,msg);
+		ObjectMapper obj = new ObjectMapper();
+		MLOutputModel output = null;
+		try { 
+			output = obj.readValue(msg, new TypeReference<MLOutputModel>(){});
+			mlMsMessageProcessor.processMLMsg(output);
+		} 
+		catch (IOException e) { 
+			log.error("Error converting ML msg to object, {}",e.getMessage());
+		} 
+	}
+}