2 * Copyright (c) 2016, 2017 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
8 package org.opendaylight.netvirt.vpnmanager.intervpnlink;
10 import java.math.BigInteger;
11 import java.util.List;
12 import javax.annotation.PreDestroy;
13 import javax.inject.Inject;
14 import javax.inject.Singleton;
15 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
16 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
17 import org.opendaylight.infrautils.utils.concurrent.Executors;
18 import org.opendaylight.mdsal.binding.api.DataBroker;
19 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
20 import org.opendaylight.netvirt.vpnmanager.VpnFootprintService;
21 import org.opendaylight.netvirt.vpnmanager.VpnUtil;
22 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkCache;
23 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkDataComposite;
24 import org.opendaylight.netvirt.vpnmanager.intervpnlink.tasks.InterVpnLinkCleanedCheckerTask;
25 import org.opendaylight.netvirt.vpnmanager.intervpnlink.tasks.InterVpnLinkCreatorTask;
26 import org.opendaylight.netvirt.vpnmanager.intervpnlink.tasks.InterVpnLinkRemoverTask;
27 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink;
30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
35 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
36 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
37 import org.slf4j.Logger;
38 import org.slf4j.LoggerFactory;
41 * Listens for Nodes going down, in order to check if the InterVpnLink must be
42 * moved to some other DPN.
45 public class InterVpnLinkNodeListener extends AbstractAsyncDataTreeChangeListener<Node> {
46 private static final Logger LOG = LoggerFactory.getLogger(InterVpnLinkNodeListener.class);
48 public static final TopologyId FLOW_TOPOLOGY_ID = new TopologyId(new Uri("flow:1"));
50 private final DataBroker dataBroker;
51 private final IMdsalApiManager mdsalManager;
52 private final VpnFootprintService vpnFootprintService;
53 private final JobCoordinator jobCoordinator;
54 private final InterVpnLinkCache interVpnLinkCache;
55 private final VpnUtil vpnUtil;
56 private final InterVpnLinkUtil interVpnLinkUtil;
59 public InterVpnLinkNodeListener(final DataBroker dataBroker, final IMdsalApiManager mdsalMgr,
60 final VpnFootprintService vpnFootprintService,
61 final JobCoordinator jobCoordinator, final InterVpnLinkCache interVpnLinkCache,
62 VpnUtil vpnUtil, InterVpnLinkUtil interVpnLinkUtil) {
63 super(dataBroker, LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(NetworkTopology.class)
64 .child(Topology.class, new TopologyKey(FLOW_TOPOLOGY_ID))
65 .child(Node.class), Executors.newListeningSingleThreadExecutor("InterVpnLinkNodeListener",
67 this.dataBroker = dataBroker;
68 this.mdsalManager = mdsalMgr;
69 this.vpnFootprintService = vpnFootprintService;
70 this.jobCoordinator = jobCoordinator;
71 this.interVpnLinkCache = interVpnLinkCache;
72 this.vpnUtil = vpnUtil;
73 this.interVpnLinkUtil = interVpnLinkUtil;
77 LOG.info("{} start", getClass().getSimpleName());
84 Executors.shutdownAndAwaitTermination(getExecutorService());
88 public void add(InstanceIdentifier<Node> identifier, Node add) {
89 NodeId nodeId = add.getNodeId();
90 String[] node = nodeId.getValue().split(":");
91 if (node.length < 2) {
92 LOG.warn("Unexpected nodeId {}", nodeId.getValue());
95 BigInteger dpId = new BigInteger(node[1]);
96 jobCoordinator.enqueueJob("IVpnLink" + dpId.toString(),
97 new InterVpnLinkNodeAddTask(dataBroker, mdsalManager, vpnFootprintService, dpId, interVpnLinkCache,
98 vpnUtil, interVpnLinkUtil));
102 public void remove(InstanceIdentifier<Node> identifier, Node del) {
103 LOG.trace("Node {} has been deleted", identifier.firstKeyOf(Node.class).toString());
104 NodeId nodeId = del.getNodeId();
105 String[] node = nodeId.getValue().split(":");
106 if (node.length < 2) {
107 LOG.warn("Unexpected nodeId {}", nodeId.getValue());
110 BigInteger dpId = new BigInteger(node[1]);
111 List<InterVpnLinkDataComposite> allInterVpnLinks = interVpnLinkCache.getAllInterVpnLinks();
112 allInterVpnLinks.stream()
113 .filter(ivl -> ivl.stepsOnDpn(dpId)) // Only those affected by DPN going down
114 .forEach(this::reinstallInterVpnLink); // Move them somewhere else
117 private void reinstallInterVpnLink(InterVpnLinkDataComposite ivl) {
118 String ivlName = ivl.getInterVpnLinkName();
119 LOG.debug("Reinstalling InterVpnLink {} affected by node going down", ivlName);
120 // Lets move the InterVpnLink to some other place. Basically, remove it and create it again
121 InstanceIdentifier<InterVpnLink> interVpnLinkIid = InterVpnLinkUtil.getInterVpnLinkPath(ivlName);
122 String specificJobKey = "InterVpnLink.update." + ivlName;
123 InterVpnLink interVpnLink = ivl.getInterVpnLinkConfig();
124 jobCoordinator.enqueueJob(specificJobKey, new InterVpnLinkRemoverTask(dataBroker, interVpnLinkIid));
125 jobCoordinator.enqueueJob(specificJobKey, new InterVpnLinkCleanedCheckerTask(dataBroker, interVpnLink,
126 interVpnLinkUtil, vpnUtil));
127 jobCoordinator.enqueueJob(specificJobKey, new InterVpnLinkCreatorTask(dataBroker, interVpnLink));
131 public void update(InstanceIdentifier<Node> identifier, Node original, Node update) {