diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventExporterManager.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventExporterManager.java
new file mode 100644
index 0000000..6e1a0e8
--- /dev/null
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventExporterManager.java
@@ -0,0 +1,323 @@
+/*
+ * Copyright 2016-present 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.impl;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onosproject.kafkaintegration.api.dto.OnosEvent.Type.DEVICE;
+import static org.onosproject.kafkaintegration.api.dto.OnosEvent.Type.LINK;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+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.apache.felix.scr.annotations.Service;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.kafkaintegration.api.EventExporterService;
+import org.onosproject.kafkaintegration.api.dto.EventSubscriber;
+import org.onosproject.kafkaintegration.api.dto.EventSubscriberGroupId;
+import org.onosproject.kafkaintegration.api.dto.OnosEvent.Type;
+import org.onosproject.kafkaintegration.errors.InvalidApplicationException;
+import org.onosproject.kafkaintegration.errors.InvalidGroupIdException;
+import org.onosproject.kafkaintegration.listener.ListenerFactory;
+import org.onosproject.kafkaintegration.listener.OnosEventListener;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.link.LinkService;
+import org.onosproject.store.serializers.KryoNamespaces;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.StorageService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Implementation of Event Exporter Service.
+ *
+ */
+@Component(immediate = true)
+@Service
+public class EventExporterManager implements EventExporterService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    // Stores the currently registered applications for event export service.
+    private Map<ApplicationId, EventSubscriberGroupId> registeredApps;
+
+    private Map<Type, List<EventSubscriber>> subscriptions;
+
+    private static final String REGISTERED_APPS = "registered-applications";
+
+    private static final String SUBSCRIBED_APPS = "event-subscriptions";
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceService deviceService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected LinkService linkService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected CoreService coreService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected StorageService storageService;
+
+    private ApplicationId appId;
+
+    @Activate
+    protected void activate() {
+        appId = coreService
+                .registerApplication("org.onosproject.kafkaintegration");
+
+        registeredApps = storageService
+                .<ApplicationId, EventSubscriberGroupId>consistentMapBuilder()
+                .withName(REGISTERED_APPS)
+                .withSerializer(Serializer.using(KryoNamespaces.API,
+                                                 EventSubscriberGroupId.class,
+                                                 UUID.class))
+                .build().asJavaMap();
+
+        subscriptions = storageService
+                .<Type, List<EventSubscriber>>consistentMapBuilder()
+                .withName(SUBSCRIBED_APPS)
+                .withSerializer(Serializer.using(KryoNamespaces.API,
+                                                 EventSubscriber.class))
+                .build().asJavaMap();
+
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        log.info("Stopped");
+    }
+
+    @Override
+    public EventSubscriberGroupId registerListener(String appName) {
+
+        // TODO: Remove it once ONOS provides a mechanism for external apps
+        // to register with the core service. See Jira - 4409
+        ApplicationId externalAppId = coreService.registerApplication(appName);
+
+        return registeredApps.computeIfAbsent(externalAppId,
+                                              (key) -> new EventSubscriberGroupId(UUID
+                                                      .randomUUID()));
+
+    }
+
+    @Override
+    public void unregisterListener(String appName) {
+        ApplicationId externalAppId =
+                checkNotNull(coreService.getAppId(appName));
+        registeredApps.remove(externalAppId);
+    }
+
+    @Override
+    public void subscribe(EventSubscriber subscriber)
+            throws InvalidGroupIdException, InvalidApplicationException {
+
+        checkNotNull(subscriber);
+
+        if (!registeredApplication(subscriber.appName())) {
+            throw new InvalidApplicationException("Application is not "
+                    + "registered to make this request.");
+        }
+
+        if (!validGroupId(subscriber.subscriberGroupId(),
+                          subscriber.appName())) {
+            throw new InvalidGroupIdException("Incorrect group id in the request");
+        }
+
+        OnosEventListener onosListener = getListener(subscriber.eventType());
+        checkNotNull(onosListener,
+                     "No listener for the supported event type - {}",
+                     subscriber.eventType());
+
+        applyListenerAction(subscriber.eventType(), onosListener,
+                            ListenerAction.START);
+
+        // update internal state
+        List<EventSubscriber> subscriptionList =
+                subscriptions.get(subscriber.eventType());
+        if (subscriptionList == null) {
+            subscriptionList = new ArrayList<EventSubscriber>();
+        }
+        subscriptionList.add(subscriber);
+        subscriptions.put(subscriber.eventType(), subscriptionList);
+
+        log.info("Subscription for {} event by {} successfull",
+                 subscriber.eventType(), subscriber.appName());
+    }
+
+    /**
+     * Checks if the application has registered.
+     *
+     * @param appName application name
+     * @return true if application has registered
+     */
+    private boolean registeredApplication(String appName) {
+
+        checkNotNull(appName);
+        ApplicationId appId = checkNotNull(coreService.getAppId(appName));
+        if (registeredApps.containsKey(appId)) {
+            return true;
+        }
+
+        log.debug("{} is not registered", appName);
+        return false;
+    }
+
+    /**
+     * Actions that can be performed on the ONOS Event Listeners.
+     *
+     */
+    private enum ListenerAction {
+        START, STOP;
+    }
+
+    /**
+     * Applies the specified action on the Listener.
+     *
+     * @param eventType the ONOS Event type registered by the application
+     * @param onosListener ONOS event listener
+     * @param action to be performed on the listener
+     */
+    private void applyListenerAction(Type eventType,
+                                     OnosEventListener onosListener,
+                                     ListenerAction action) {
+        switch (eventType) {
+        case DEVICE:
+            if (action == ListenerAction.START) {
+                onosListener.startListener(DEVICE, deviceService);
+            } else {
+                onosListener.stopListener(DEVICE, deviceService);
+            }
+            break;
+        case LINK:
+            if (action == ListenerAction.START) {
+                onosListener.startListener(LINK, linkService);
+            } else {
+                onosListener.stopListener(LINK, linkService);
+            }
+            break;
+        default:
+            log.error("Cannot {} listener. Unsupported event type {} ",
+                      action.toString(), eventType.toString());
+        }
+    }
+
+    /**
+     * Returns the ONOS event listener corresponding to the ONOS Event type.
+     *
+     * @param eventType ONOS event type
+     * @return ONOS event listener
+     */
+    private OnosEventListener getListener(Type eventType) {
+        checkNotNull(eventType);
+        ListenerFactory factory = ListenerFactory.getInstance();
+        OnosEventListener onosListener = factory.getListener(eventType);
+        return onosListener;
+    }
+
+    /**
+     * Checks if the group id is valid for this registered application.
+     *
+     * @param groupId GroupId assigned to the subscriber
+     * @param appName Registered Application name
+     * @return true if valid groupId and false otherwise
+     */
+    private boolean validGroupId(EventSubscriberGroupId groupId,
+                                 String appName) {
+
+        checkNotNull(groupId);
+
+        ApplicationId appId = coreService.getAppId(appName);
+        EventSubscriberGroupId registeredGroupId = registeredApps.get(appId);
+        if (registeredGroupId.equals(groupId)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    @Override
+    public void unsubscribe(EventSubscriber subscriber)
+            throws InvalidGroupIdException, InvalidApplicationException {
+
+        checkNotNull(subscriber);
+
+        if (!registeredApplication(subscriber.appName())) {
+            throw new InvalidApplicationException("Application is not "
+                    + "registered to make this request.");
+        }
+
+        if (!validGroupId(subscriber.subscriberGroupId(),
+                          subscriber.appName())) {
+            throw new InvalidGroupIdException("Incorrect group id in the request");
+        }
+
+        if (!eventSubscribed(subscriber)) {
+            log.error("No subscription to {} was found",
+                      subscriber.eventType());
+            return;
+        }
+
+        // If this is the only subscriber listening for this event,
+        // stop the listener.
+        List<EventSubscriber> subscribers =
+                subscriptions.get(subscriber.eventType());
+        if (subscribers.size() == 1) {
+            OnosEventListener onosListener =
+                    getListener(subscriber.eventType());
+            checkNotNull(onosListener,
+                         "No listener for the supported event type - {}",
+                         subscriber.eventType());
+            applyListenerAction(subscriber.eventType(), onosListener,
+                                ListenerAction.STOP);
+        }
+
+        // update internal state.
+        subscribers.remove(subscriber);
+        subscriptions.put(subscriber.eventType(), subscribers);
+
+        log.info("Unsubscribed {} for {} events", subscriber.appName(),
+                 subscriber.eventType());
+    }
+
+    /**
+     * Checks if the subscriber has already subscribed to the requested event
+     * type.
+     *
+     * @param subscriber the subscriber to a specific ONOS event
+     * @return true if subscriber has subscribed to the ONOS event
+     */
+    private boolean eventSubscribed(EventSubscriber subscriber) {
+
+        List<EventSubscriber> subscriberList =
+                subscriptions.get(subscriber.eventType());
+
+        if (subscriberList == null) {
+            return false;
+        }
+
+        return subscriberList.contains(subscriber);
+    }
+
+}