Made changes as per comments.
kafkaProducer is now non-static.
TODO: KafkaPublisherManager Service and not Singleton.
Kafka event publishing.
Change-Id: I5ec20a6e4950c38e822468d343521ab77475b7d3
diff --git a/apps/kafka-integration/core/src/main/java/org/onosproject/kafkaintegration/converter/DeviceEventConverter.java b/apps/kafka-integration/core/src/main/java/org/onosproject/kafkaintegration/converter/DeviceEventConverter.java
new file mode 100644
index 0000000..6b2ee24
--- /dev/null
+++ b/apps/kafka-integration/core/src/main/java/org/onosproject/kafkaintegration/converter/DeviceEventConverter.java
@@ -0,0 +1,122 @@
+/**
+ * Copyright 2016 Open Networking Laboratory
+ * 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.onosproject.kafkaintegration.converter;
+
+import com.google.protobuf.GeneratedMessage;
+import org.onosproject.event.Event;
+import org.onosproject.grpc.net.Device.DeviceCore;
+import org.onosproject.grpc.net.Device.DeviceType;
+import org.onosproject.grpc.net.DeviceEvent.DeviceEventType;
+import org.onosproject.grpc.net.DeviceEvent.DeviceNotification;
+import org.onosproject.grpc.net.Port.PortCore;
+import org.onosproject.grpc.net.Port.PortType;
+import org.onosproject.net.device.DeviceEvent;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Converts ONOS Device event message to protobuf format.
+ */
+public class DeviceEventConverter implements EventConverter {
+
+ private final Logger log = LoggerFactory.getLogger(getClass());
+
+ @Override
+ public GeneratedMessage convertToProtoMessage(Event<?, ?> event) {
+
+ DeviceEvent deviceEvent = (DeviceEvent) event;
+
+ if (!deviceEventTypeSupported(deviceEvent)) {
+ log.error("Unsupported Onos Device Event {}. There is no matching"
+ + "proto Device Event type", deviceEvent.type().toString());
+ return null;
+ }
+
+ return buildDeviceProtoMessage(deviceEvent);
+ }
+
+ /**
+ * Checks if the ONOS Device Event type is supported.
+ *
+ * @param event ONOS Device event
+ * @return true if there is a match and false otherwise
+ */
+ private boolean deviceEventTypeSupported(DeviceEvent event) {
+ DeviceEventType[] deviceEvents = DeviceEventType.values();
+ for (DeviceEventType deviceEventType : deviceEvents) {
+ if (deviceEventType.name().equals(event.type().name())) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ private DeviceNotification buildDeviceProtoMessage(DeviceEvent deviceEvent) {
+ DeviceNotification.Builder notificationBuilder =
+ DeviceNotification.newBuilder();
+
+ DeviceCore deviceCore =
+ DeviceCore.newBuilder()
+ .setChassisId(deviceEvent.subject().chassisId().id()
+ .toString())
+ .setDeviceId(deviceEvent.subject().id().toString())
+ .setHwVersion(deviceEvent.subject().hwVersion())
+ .setManufacturer(deviceEvent.subject().manufacturer())
+ .setSerialNumber(deviceEvent.subject().serialNumber())
+ .setSwVersion(deviceEvent.subject().swVersion())
+ .setType(DeviceType
+ .valueOf(deviceEvent.subject().type().name()))
+ .build();
+
+ PortCore portCore = null;
+ if (deviceEvent.port() != null) {
+ portCore =
+ PortCore.newBuilder()
+ .setIsEnabled(deviceEvent.port().isEnabled())
+ .setPortNumber(deviceEvent.port().number()
+ .toString())
+ .setPortSpeed(deviceEvent.port().portSpeed())
+ .setType(PortType
+ .valueOf(deviceEvent.port().type().name()))
+ .build();
+
+ notificationBuilder.setPort(portCore);
+ }
+
+ notificationBuilder.setDeviceEventType(getProtoType(deviceEvent))
+ .setDevice(deviceCore);
+
+ return notificationBuilder.build();
+ }
+
+ /**
+ * Retrieves the protobuf generated device event type.
+ *
+ * @param event ONOS Device Event
+ * @return generated Device Event Type
+ */
+ private DeviceEventType getProtoType(DeviceEvent event) {
+ DeviceEventType protobufEventType = null;
+ DeviceEventType[] deviceEvents = DeviceEventType.values();
+ for (DeviceEventType deviceEventType : deviceEvents) {
+ if (deviceEventType.name().equals(event.type().name())) {
+ protobufEventType = deviceEventType;
+ }
+ }
+
+ return protobufEventType;
+ }
+}