diff options
Diffstat (limited to 'vbd/impl/src/main/java/io/fd/honeycomb/vbd/impl/TopologyMonitor.java')
-rw-r--r-- | vbd/impl/src/main/java/io/fd/honeycomb/vbd/impl/TopologyMonitor.java | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/vbd/impl/src/main/java/io/fd/honeycomb/vbd/impl/TopologyMonitor.java b/vbd/impl/src/main/java/io/fd/honeycomb/vbd/impl/TopologyMonitor.java deleted file mode 100644 index dfab2e877..000000000 --- a/vbd/impl/src/main/java/io/fd/honeycomb/vbd/impl/TopologyMonitor.java +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright (c) 2016 Cisco Systems, Inc. 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 io.fd.honeycomb.vbd.impl; - -import com.google.common.base.Preconditions; -import io.fd.honeycomb.vbd.api.VxlanTunnelIdAllocator; -import java.util.Collection; -import java.util.HashMap; -import java.util.Map; -import java.util.Map.Entry; -import javax.annotation.concurrent.GuardedBy; -import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain; -import org.opendaylight.controller.md.sal.binding.api.DataBroker; -import org.opendaylight.controller.md.sal.binding.api.DataObjectModification; -import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener; -import org.opendaylight.controller.md.sal.binding.api.DataTreeModification; -import org.opendaylight.controller.md.sal.binding.api.MountPointService; -import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction; -import org.opendaylight.controller.md.sal.common.api.data.TransactionChain; -import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener; -import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vbridge.topology.rev160129.network.topology.topology.topology.types.VbridgeTopology; -import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology; -import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey; -import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node; -import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey; -import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * Class responsible for monitoring /network-topology/topology and activating a {@link BridgeDomain} when a particular - * topology is marked as a bridge domain. - */ -final class TopologyMonitor implements DataTreeChangeListener<VbridgeTopology>, AutoCloseable { - private static final Logger LOG = LoggerFactory.getLogger(TopologyMonitor.class); - - @GuardedBy("this") - private final Map<TopologyKey, BridgeDomain> domains = new HashMap<>(); - private final DataBroker dataBroker; - private final MountPointService mountService; - private static final VxlanTunnelIdAllocator tunnelIdAllocator = new VxlanTunnelIdAllocatorImpl(); - - public TopologyMonitor(DataBroker dataBroker, MountPointService mountService) { - this.dataBroker = Preconditions.checkNotNull(dataBroker); - this.mountService = Preconditions.checkNotNull(mountService); - - } - - @Override - public synchronized void onDataTreeChanged(final Collection<DataTreeModification<VbridgeTopology>> changes) { - for (DataTreeModification<VbridgeTopology> c : changes) { - @SuppressWarnings("unchecked") - final KeyedInstanceIdentifier<Topology, TopologyKey> topology = - (KeyedInstanceIdentifier<Topology, TopologyKey>) c.getRootPath().getRootIdentifier() - .firstIdentifierOf(Topology.class); - - Preconditions.checkArgument(!topology.isWildcarded(), "Wildcard topology %s is not supported", topology); - - final DataObjectModification<VbridgeTopology> mod = c.getRootNode(); - switch (mod.getModificationType()) { - case DELETE: - LOG.debug("Topology {} removed", topology); - stopDomain(topology); - break; - case WRITE: - LOG.debug("Topology {} added", topology); - startDomain(topology); - break; - default: - LOG.warn("Ignoring unhandled modification type {}", mod.getModificationType()); - break; - } - } - } - - private synchronized void completeDomain(final KeyedInstanceIdentifier<Topology, TopologyKey> topology) { - LOG.debug("Bridge domain for {} completed operation", topology); - domains.remove(topology); - - synchronized (domains) { - domains.notify(); - } - } - - private synchronized void restartDomain(final KeyedInstanceIdentifier<Topology, TopologyKey> topology) { - final BridgeDomain prev = domains.remove(topology); - if (prev == null) { - LOG.warn("No domain for {}, not restarting", topology); - return; - } - - prev.forceStop(); - startDomain(topology); - } - - @GuardedBy("this") - private void startDomain(final KeyedInstanceIdentifier<Topology, TopologyKey> topology) { - final BridgeDomain prev = domains.get(topology.getKey()); - if (prev != null) { - LOG.warn("Bridge domain {} for {} already started", prev, topology); - return; - } - - LOG.debug("Starting bridge domain for {}", topology); - - final BindingTransactionChain chain = dataBroker.createTransactionChain(new TransactionChainListener() { - @Override - public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) { - completeDomain(topology); - } - - @Override - public void onTransactionChainFailed(final TransactionChain<?, ?> chain, - final AsyncTransaction<?, ?> transaction, final Throwable cause) { - LOG.warn("Bridge domain for {} failed, restarting it", cause); - restartDomain(topology); - } - }); - - final BridgeDomain domain = BridgeDomain.create(dataBroker, mountService, topology, chain, tunnelIdAllocator); - domains.put(topology.getKey(), domain); - - LOG.debug("Bridge domain {} for {} started", domain, topology); - } - - @GuardedBy("this") - private void stopDomain(final KeyedInstanceIdentifier<Topology, TopologyKey> topology) { - final BridgeDomain domain = domains.remove(topology.getKey()); - if (domain == null) { - LOG.warn("Bridge domain for {} not present", topology); - return; - } - - domain.stop(); - } - - @Override - public synchronized void close() { - LOG.debug("Topology monitor {} shut down started", this); - - for (Entry<TopologyKey, BridgeDomain> e : domains.entrySet()) { - LOG.debug("Shutting down bridge domain {} (key {})", e.getValue(), e.getKey()); - e.getValue().stop(); - } - - while (!domains.isEmpty()) { - LOG.debug("Waiting for domains for {} to complete", domains.keySet()); - synchronized (domains) { - try { - domains.wait(); - } catch (InterruptedException e) { - LOG.warn("Interrupted while waiting for domain shutdown, {} have not completed yet", - domains.keySet(), e); - break; - } - } - } - - LOG.debug("Topology monitor {} shut down completed", this); - } - - public static class VxlanTunnelIdAllocatorImpl implements VxlanTunnelIdAllocator { - - private final Map<KeyedInstanceIdentifier<Node, NodeKey>, Integer> vppIIToNextTunnelId; - - VxlanTunnelIdAllocatorImpl() { - vppIIToNextTunnelId = new HashMap<>(); - } - - @Override - public synchronized Integer nextIdFor(final KeyedInstanceIdentifier<Node, NodeKey> iiToVPP) { - if(vppIIToNextTunnelId.containsKey(iiToVPP)) { - final int value = vppIIToNextTunnelId.get(iiToVPP); - vppIIToNextTunnelId.put(iiToVPP, value + 1); - return value + 1; - } else { - vppIIToNextTunnelId.put(iiToVPP, 0); - return 0; - } - } - - } -} |