--- /dev/null
+/*
+ * Copyright (c) 2017 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.netvirt.elan.evpn.listeners;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
+import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
+import org.opendaylight.netvirt.elan.evpn.utils.EvpnMacVrfUtils;
+import org.opendaylight.netvirt.elan.evpn.utils.EvpnUtils;
+import org.opendaylight.netvirt.elan.utils.ElanUtils;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInstances;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.EvpnAugmentation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+
+@Singleton
+public class EvpnElanInstanceListener extends AsyncDataTreeChangeListenerBase<ElanInstance, EvpnElanInstanceListener> {
+ private static final Logger LOG = LoggerFactory.getLogger(EvpnElanInstanceListener.class);
+ private final DataBroker broker;
+ private final EvpnUtils evpnUtils;
+ private final EvpnMacVrfUtils evpnMacVrfUtils;
+ private final IMdsalApiManager mdsalManager;
+
+
+ @Inject
+ public EvpnElanInstanceListener(final DataBroker dataBroker, final EvpnUtils evpnUtils,
+ EvpnMacVrfUtils evpnMacVrfUtils, IMdsalApiManager mdsalApiManager) {
+ super(ElanInstance.class, EvpnElanInstanceListener.class);
+ this.broker = dataBroker;
+ this.evpnUtils = evpnUtils;
+ this.evpnMacVrfUtils = evpnMacVrfUtils;
+ this.mdsalManager = mdsalApiManager;
+ }
+
+ @Override
+ @PostConstruct
+ public void init() {
+ registerListener(LogicalDatastoreType.CONFIGURATION, broker);
+ }
+
+ @Override
+ protected InstanceIdentifier<ElanInstance> getWildCardPath() {
+ return InstanceIdentifier.builder(ElanInstances.class).child(ElanInstance.class).build();
+ }
+
+ @Override
+ protected void add(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance evpnAugmentation) {
+ }
+
+ @Override
+ protected void remove(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance evpnAugmentation) {
+ }
+
+ @Override
+ protected void update(InstanceIdentifier<ElanInstance> instanceIdentifier, ElanInstance original,
+ ElanInstance update) {
+ String elanName = update.getElanInstanceName();
+ ElanUtils.addElanInstanceIntoCache(elanName, update);
+ if (evpnUtils.isWithdrawEvpnRT2Routes(original, update)) {
+ evpnUtils.withdrawEvpnRT2Routes(original.getAugmentation(EvpnAugmentation.class), elanName);
+ evpnMacVrfUtils.updateEvpnDmacFlows(original, false);
+ evpnUtils.programEvpnL2vniDemuxTable(elanName,
+ (elan, interfaceName) -> evpnUtils.bindElanServiceToExternalTunnel(elanName, interfaceName),
+ (dpnId, flowEntity) -> mdsalManager.installFlow(dpnId, flowEntity));
+ } else if (evpnUtils.isAdvertiseEvpnRT2Routes(original, update)) {
+ evpnUtils.advertiseEvpnRT2Routes(update.getAugmentation(EvpnAugmentation.class), elanName);
+ evpnMacVrfUtils.updateEvpnDmacFlows(update, true);
+ evpnUtils.programEvpnL2vniDemuxTable(elanName,
+ (elan, interfaceName) -> evpnUtils.unbindElanServiceFromExternalTunnel(elanName, interfaceName),
+ (dpnId, flowEntity) -> mdsalManager.removeFlow(dpnId, flowEntity));
+ }
+ }
+
+ @Override
+ protected EvpnElanInstanceListener getDataTreeChangeListener() {
+ return this;
+ }
+
+}