2 * Copyright (c) 2019 Ericsson India Global Services Pvt Ltd. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.netvirt.elan.l2gw.listeners;
11 import java.util.ArrayList;
12 import java.util.List;
14 import java.util.concurrent.ConcurrentHashMap;
15 import javax.annotation.PreDestroy;
16 import javax.inject.Inject;
17 import javax.inject.Singleton;
18 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundConstants;
19 import org.opendaylight.infrautils.utils.concurrent.Executors;
20 import org.opendaylight.mdsal.binding.api.DataBroker;
21 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
22 import org.opendaylight.serviceutils.tools.listener.AbstractClusteredAsyncDataTreeChangeListener;
23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
26 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
32 public class HwvtepConfigNodeCache extends AbstractClusteredAsyncDataTreeChangeListener<Node> {
33 private static final Logger LOG = LoggerFactory.getLogger(HwvtepConfigNodeCache.class);
35 private final DataBroker dataBroker;
36 private final Map<InstanceIdentifier<Node>, Node> cache = new ConcurrentHashMap<>();
37 private final Map<InstanceIdentifier<Node>, List<Runnable>> waitList = new ConcurrentHashMap<>();
40 public HwvtepConfigNodeCache(final DataBroker dataBroker) {
41 super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(NetworkTopology.class)
42 .child(Topology.class, new TopologyKey(HwvtepSouthboundConstants.HWVTEP_TOPOLOGY_ID))
43 .child(Node.class), Executors.newListeningSingleThreadExecutor("HwvtepConfigNodeCache", LOG));
44 this.dataBroker = dataBroker;
48 LOG.info("{} init", getClass().getSimpleName());
55 Executors.shutdownAndAwaitTermination(getExecutorService());
59 public void remove(InstanceIdentifier<Node> key, Node deleted) {
64 public void update(InstanceIdentifier<Node> key, Node old, Node added) {
65 cache.put(key, added);
69 public synchronized void add(InstanceIdentifier<Node> key, Node added) {
70 cache.put(key, added);
71 if (waitList.containsKey(key)) {
72 waitList.remove(key).stream().forEach(runnable -> runnable.run());
76 public Node getConfigNode(InstanceIdentifier<Node> key) {
77 return cache.get(key);
80 public synchronized void runAfterNodeAvailable(InstanceIdentifier<Node> key, Runnable runnable) {
81 if (cache.containsKey(key)) {
84 waitList.putIfAbsent(key, new ArrayList<>());
85 waitList.get(key).add(runnable);