+/*
+ * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.vpnservice.elan.internal;
+
+//import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+//import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
+//import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
+//import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+//import org.opendaylight.vpnservice.mdsalutil.AbstractDataChangeListener;
+//import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.itm.op.rev150701.TunnelsState;
+//import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.itm.op.rev150701.tunnels_state.StateTunnelList;
+//import org.opendaylight.yangtools.concepts.ListenerRegistration;
+//import org.opendaylight.yangtools.yang.binding.DataObject;
+//import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+//import org.slf4j.Logger;
+//import org.slf4j.LoggerFactory;
+//
+//import java.math.BigInteger;
+
+public class ElanItmEventListener{
+
+}
+//public class ElanItmEventListener extends AbstractDataChangeListener<DataObject> implements AutoCloseable {
+//FIXME: This class is to be made functional once ITM is added
+// private static final Logger logger = LoggerFactory.getLogger(ElanItmEventListener.class);
+// private final DataBroker broker;
+// private ListenerRegistration<DataChangeListener> listenerRegistration;
+// private ElanInterfaceManager elanInterfaceManager;
+//
+// public ElanItmEventListener(final DataBroker db, final ElanInterfaceManager ifManager) {
+// super(StateTunnelList.class);
+// broker = db;
+// elanInterfaceManager = ifManager;
+// registerListener(db);
+// }
+//
+// private void registerListener(final DataBroker db) {
+// try {
+// listenerRegistration = broker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
+// getWildCardPath(), ElanItmEventListener.this, AsyncDataBroker.DataChangeScope.SUBTREE);
+// } catch (final Exception e) {
+// logger.error("ITM Monitor Interfaces DataChange listener registration fail!", e);
+// throw new IllegalStateException("ITM Monitor registration Listener failed.", e);
+// }
+// }
+//
+// private InstanceIdentifier<StateTunnelList> getWildCardPath() {
+// return InstanceIdentifier.create(TunnelsState.class).child(StateTunnelList.class);
+// }
+//
+// @Override
+// public void close() throws Exception {
+// if (listenerRegistration != null) {
+// try {
+// listenerRegistration.close();
+// } catch (final Exception e) {
+// logger.error("Error when cleaning up DataChangeListener.", e);
+// }
+// listenerRegistration = null;
+// }
+// }
+//
+// @Override
+// protected void remove(InstanceIdentifier<StateTunnelList> identifier, StateTunnelList del) {
+//
+// }
+//
+// @Override
+// protected void update(InstanceIdentifier<StateTunnelList> identifier, StateTunnelList original, StateTunnelList update) {
+// BigInteger srcDpId = update.getSourceDPN();
+// BigInteger dstDpId = update.getDestinationDPN();
+// logger.trace("ITM Tunnel state event changed from :{} to :{} for transportZone:{}",original.isLogicalTunnelState(), update.isLogicalTunnelState(), update.getLogicalTunnelGroupName());
+//
+// if(update.isLogicalTunnelState()) {
+// logger.trace("ITM Tunnel State is Up b/w srcDpn: {} and dstDpn: {}", srcDpId, dstDpId);
+// elanInterfaceManager.handleTunnelStateEvent(srcDpId, dstDpId);
+// }
+// }
+//
+// @Override
+// protected void add(InstanceIdentifier<StateTunnelList> identifier, StateTunnelList add) {
+// BigInteger srcDpId = add.getSourceDPN();
+// BigInteger dstDpId = add.getDestinationDPN();
+// logger.trace("ITM Tunnel state event:{} for transportZone:{} of {}", add.isLogicalTunnelState(), add.getLogicalTunnelGroupName());
+//
+// if(add.isLogicalTunnelState()) {
+// logger.trace("ITM Tunnel State is Up b/w srcDpn: {} and dstDpn: {}", srcDpId, dstDpId);
+// elanInterfaceManager.handleTunnelStateEvent(srcDpId, dstDpId);
+// }
+// }
+//}