Kafka app that listens to events from applications and pushes them to a kafka bus
Change-Id: I8026f13f10aa00f6389b89459fa8ebd74de289a3
diff --git a/src/main/java/org/opencord/kafka/integrations/AccessDeviceKafkaIntegration.java b/src/main/java/org/opencord/kafka/integrations/AccessDeviceKafkaIntegration.java
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index 0000000..9a5ddb1
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+++ b/src/main/java/org/opencord/kafka/integrations/AccessDeviceKafkaIntegration.java
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+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.
+ */
+
+package org.opencord.kafka.integrations;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.Port;
+import org.opencord.kafka.EventBusService;
+import org.opencord.olt.AccessDeviceEvent;
+import org.opencord.olt.AccessDeviceListener;
+import org.opencord.olt.AccessDeviceService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.time.Instant;
+
+/**
+ * Listens for access device events and pushes them on a Kafka bus.
+ */
+@Component(immediate = true)
+public class AccessDeviceKafkaIntegration {
+
+ public Logger log = LoggerFactory.getLogger(getClass());
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected EventBusService eventBusService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected AccessDeviceService accessDeviceService;
+
+ private final AccessDeviceListener listener = new InternalAccessDeviceListener();
+
+ private static final String TOPIC = "onu.events";
+
+ private static final String STATUS = "status";
+ private static final String SERIAL_NUMBER = "serial_number";
+ private static final String UNI_PORT_ID = "uni_port_id";
+ private static final String OF_DPID = "of_dpid";
+ private static final String ACTIVATED = "activated";
+ private static final String TIMESTAMP = "timestamp";
+
+ @Activate
+ public void activate() {
+ accessDeviceService.addListener(listener);
+ log.info("Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ accessDeviceService.removeListener(listener);
+ log.info("Stopped");
+ }
+
+ private void handle(AccessDeviceEvent event) {
+ eventBusService.send(TOPIC, serialize(event));
+ }
+
+ private JsonNode serialize(AccessDeviceEvent event) {
+ Port port = event.port().get();
+ String serialNumber = port.annotations().value(AnnotationKeys.PORT_NAME);
+
+ ObjectMapper mapper = new ObjectMapper();
+ ObjectNode onuNode = mapper.createObjectNode();
+ onuNode.put(TIMESTAMP, Instant.now().toString());
+ onuNode.put(STATUS, ACTIVATED);
+ onuNode.put(SERIAL_NUMBER, serialNumber);
+ onuNode.put(UNI_PORT_ID, port.number().toLong());
+ onuNode.put(OF_DPID, port.element().id().toString());
+
+ return onuNode;
+ }
+
+ private class InternalAccessDeviceListener implements
+ AccessDeviceListener {
+
+ @Override
+ public void event(AccessDeviceEvent accessDeviceEvent) {
+ switch (accessDeviceEvent.type()) {
+ case UNI_ADDED:
+ handle(accessDeviceEvent);
+ break;
+ default:
+ break;
+ }
+ }
+ }
+}