elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanInterfaceConfigListener.java

   1 /*
   2  * Copyright (c) 2017 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.netvirt.elan.internal;
   9
  10 import static org.opendaylight.mdsal.binding.util.Datastore.CONFIGURATION;
  11
  12 import java.util.Collections;
  13 import java.util.Optional;
  14 import javax.annotation.PreDestroy;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  18 import org.opendaylight.infrautils.utils.concurrent.Executors;
  19 import org.opendaylight.mdsal.binding.api.DataBroker;
  20 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunner;
  21 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunnerImpl;
  22 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  23 import org.opendaylight.netvirt.elan.cache.ElanInterfaceCache;
  24 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  25 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  26 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlan;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 @Singleton
  36 public class ElanInterfaceConfigListener
  37     extends AbstractAsyncDataTreeChangeListener<Interface> {
  38
  39     private static final Logger LOG = LoggerFactory.getLogger(ElanInterfaceConfigListener.class);
  40
  41     private final DataBroker dataBroker;
  42     private final ManagedNewTransactionRunner txRunner;
  43     private final ElanInterfaceManager elanInterfaceManager;
  44     private final JobCoordinator jobCoordinator;
  45     private final ElanInterfaceCache elanInterfaceCache;
  46
  47     @Inject
  48     public ElanInterfaceConfigListener(DataBroker dataBroker, ElanInterfaceManager elanInterfaceManager,
  49             JobCoordinator jobCoordinator, ElanInterfaceCache elanInterfaceCache) {
  50         super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(Interfaces.class)
  51                 .child(Interface.class),
  52                 Executors.newListeningSingleThreadExecutor("ElanInterfaceConfigListener", LOG));
  53         this.dataBroker = dataBroker;
  54         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  55         this.elanInterfaceManager = elanInterfaceManager;
  56         this.jobCoordinator = jobCoordinator;
  57         this.elanInterfaceCache = elanInterfaceCache;
  58     }
  59
  60     public void init() {
  61         LOG.info("ElanInterfaceConfigListener init");
  62     }
  63
  64     @Override
  65     public void remove(InstanceIdentifier<Interface> key, Interface intrf) {
  66         // Sometimes elan service is not unbound on the interface when the user does nova delete followed
  67         // by neutron port delete since interface config is deleted a bit later. so adding logic to
  68         // unbind service for interface config removal.
  69         if (intrf == null || intrf.augmentation(IfL2vlan.class) == null) {
  70             LOG.debug("The interface {} is not a L2 interface. Ignoring it", intrf);
  71             return;
  72         }
  73
  74         String interfaceName = intrf.getName();
  75         Optional<ElanInterface> elanInterface = elanInterfaceCache.get(interfaceName);
  76         if (!elanInterface.isPresent()) {
  77             LOG.debug("There is no ELAN service for interface {}. Ignoring it", interfaceName);
  78             return;
  79         }
  80         jobCoordinator.enqueueJob(ElanUtils.getElanInterfaceJobKey(interfaceName),
  81             () -> Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION, tx -> {
  82                 LOG.debug("unbinding elan service on interface {} for its config removal", interfaceName);
  83                 elanInterfaceManager.unbindService(interfaceName, tx);
  84             })), ElanConstants.JOB_MAX_RETRIES);
  85     }
  86
  87     @Override
  88     public void update(InstanceIdentifier<Interface> key, Interface dataObjectModificationBefore,
  89             Interface dataObjectModificationAfter) {
  90         // Not required to handle this event
  91     }
  92
  93     @Override
  94     public void add(InstanceIdentifier<Interface> key, Interface dataObjectModification) {
  95         // Not required to handle this event
  96     }
  97
  98     @Override
  99     @PreDestroy
 100     public void close() {
 101         super.close();
 102         Executors.shutdownAndAwaitTermination(getExecutorService());
 103     }
 104 }