2 * Copyright (c) 2016 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.tasks;
10 import com.google.common.util.concurrent.ListenableFuture;
11 import java.util.ArrayList;
12 import java.util.Collections;
13 import java.util.List;
14 import java.util.Optional;
15 import java.util.concurrent.Callable;
16 import java.util.concurrent.TimeoutException;
17 import org.opendaylight.mdsal.binding.api.DataBroker;
18 import org.opendaylight.netvirt.fibmanager.api.RouteOrigin;
19 import org.opendaylight.netvirt.vpnmanager.VpnUtil;
20 import org.opendaylight.netvirt.vpnmanager.intervpnlink.InterVpnLinkUtil;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.InterVpnLinkState;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
28 * This Task is in charge of checking that all stuff related to a given
29 * InterVpnLink has been removed, like the stateful information, leaked
32 public class InterVpnLinkCleanedCheckerTask implements Callable<List<? extends ListenableFuture<?>>> {
34 private static final Logger LOG = LoggerFactory.getLogger(InterVpnLinkCleanedCheckerTask.class);
35 private static final long MAX_WAIT_FOR_REMOVAL = 10000; // 10 seconds
37 private final DataBroker dataBroker;
38 private final InterVpnLink interVpnLinkToCheck;
39 private final InterVpnLinkUtil interVpnLinkUtil;
40 private final VpnUtil vpnUtil;
42 public InterVpnLinkCleanedCheckerTask(DataBroker dataBroker, InterVpnLink interVpnLink,
43 InterVpnLinkUtil interVpnLinkUtil, VpnUtil vpnUtil) {
44 this.dataBroker = dataBroker;
45 this.interVpnLinkToCheck = interVpnLink;
46 this.interVpnLinkUtil = interVpnLinkUtil;
47 this.vpnUtil = vpnUtil;
51 public List<ListenableFuture<Void>> call() throws Exception {
52 LOG.debug("Checking if InterVpnLink {} is fully cleaned. MAX_WAIT_FOR_REMOVAL={}",
53 interVpnLinkToCheck.getName(), MAX_WAIT_FOR_REMOVAL);
55 // Check that the State has also been deleted
56 Optional<InterVpnLinkState> optIVpnLinkState =
57 interVpnLinkUtil.getInterVpnLinkState(interVpnLinkToCheck.getName());
58 long t0 = System.currentTimeMillis();
59 long elapsedTime = t0;
60 while (optIVpnLinkState.isPresent() && elapsedTime - t0 < MAX_WAIT_FOR_REMOVAL) {
61 LOG.debug("InterVpnLink {} State has not yet been removed after {}ms.",
62 interVpnLinkToCheck.getName(), elapsedTime - t0);
64 optIVpnLinkState = interVpnLinkUtil.getInterVpnLinkState(interVpnLinkToCheck.getName());
65 elapsedTime = System.currentTimeMillis();
68 if (optIVpnLinkState.isPresent()) {
69 throw new TimeoutException("InterVpnLink " + interVpnLinkToCheck.getName()
70 + " has not been completely removed after " + MAX_WAIT_FOR_REMOVAL + " ms");
73 LOG.debug("InterVpnLink {} State has been removed. Now checking leaked routes", interVpnLinkToCheck.getName());
74 String vpn1Rd = vpnUtil.getVpnRd(interVpnLinkToCheck.getFirstEndpoint().getVpnUuid().getValue());
75 List<VrfEntry> leakedVrfEntries =
76 vpnUtil.getVrfEntriesByOrigin(vpn1Rd, Collections.singletonList(RouteOrigin.INTERVPN));
78 while (!leakedVrfEntries.isEmpty() && t0 - elapsedTime < MAX_WAIT_FOR_REMOVAL) {
79 leakedVrfEntries = vpnUtil.getVrfEntriesByOrigin(vpn1Rd, Collections.singletonList(RouteOrigin.INTERVPN));
80 elapsedTime = System.currentTimeMillis();
82 if (!leakedVrfEntries.isEmpty()) {
83 LOG.info("InterVpnLink {} leaked routes have not been removed after {} ms",
84 interVpnLinkToCheck.getName(), MAX_WAIT_FOR_REMOVAL);
85 throw new TimeoutException("InterVpnLink " + interVpnLinkToCheck.getName()
86 + " has not been completely removed after " + MAX_WAIT_FOR_REMOVAL + " ms");
89 LOG.debug("InterVpnLink {} State and leaked routes are now fully removed", interVpnLinkToCheck.getName());
91 return new ArrayList<>();