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 com.google.common.base.Optional;
  11 import java.util.Collections;
  12 import javax.annotation.PostConstruct;
  13 import javax.inject.Inject;
  14 import javax.inject.Singleton;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  18 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  19 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  20 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  21 import org.opendaylight.netvirt.elan.cache.ElanInterfaceCache;
  22 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  23 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlan;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 @Singleton
  33 public class ElanInterfaceConfigListener
  34     extends AsyncDataTreeChangeListenerBase<Interface, ElanInterfaceConfigListener> {
  35
  36     private static final Logger LOG = LoggerFactory.getLogger(ElanInterfaceConfigListener.class);
  37
  38     private final DataBroker dataBroker;
  39     private final ManagedNewTransactionRunner txRunner;
  40     private final ElanInterfaceManager elanInterfaceManager;
  41     private final JobCoordinator jobCoordinator;
  42     private final ElanInterfaceCache elanInterfaceCache;
  43
  44     @Inject
  45     public ElanInterfaceConfigListener(DataBroker dataBroker, ElanInterfaceManager elanInterfaceManager,
  46             JobCoordinator jobCoordinator, ElanInterfaceCache elanInterfaceCache) {
  47         super(Interface.class, ElanInterfaceConfigListener.class);
  48         this.dataBroker = dataBroker;
  49         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  50         this.elanInterfaceManager = elanInterfaceManager;
  51         this.jobCoordinator = jobCoordinator;
  52         this.elanInterfaceCache = elanInterfaceCache;
  53     }
  54
  55     @Override
  56     @PostConstruct
  57     public void init() {
  58         LOG.info("ElanInterfaceConfigListener init");
  59         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  60     }
  61
  62     @Override
  63     protected InstanceIdentifier<Interface> getWildCardPath() {
  64         return InstanceIdentifier.create(Interfaces.class).child(Interface.class);
  65     }
  66
  67     @Override
  68     protected void remove(InstanceIdentifier<Interface> key, Interface intrf) {
  69         // Sometimes elan service is not unbound on the interface when the user does nova delete followed
  70         // by neutron port delete since interface config is deleted a bit later. so adding logic to
  71         // unbind service for interface config removal.
  72         if (intrf == null || intrf.augmentation(IfL2vlan.class) == null) {
  73             LOG.debug("The interface {} is not a L2 interface. Ignoring it", intrf);
  74             return;
  75         }
  76
  77         String interfaceName = intrf.getName();
  78         Optional<ElanInterface> elanInterface = elanInterfaceCache.get(interfaceName);
  79         if (!elanInterface.isPresent()) {
  80             LOG.debug("There is no ELAN service for interface {}. Ignoring it", interfaceName);
  81             return;
  82         }
  83         jobCoordinator.enqueueJob(ElanUtils.getElanInterfaceJobKey(interfaceName),
  84             () -> Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(tx -> {
  85                 LOG.debug("unbinding elan service on interface {} for its config removal", interfaceName);
  86                 elanInterfaceManager.unbindService(interfaceName, tx);
  87             })), ElanConstants.JOB_MAX_RETRIES);
  88     }
  89
  90     @Override
  91     protected void update(InstanceIdentifier<Interface> key, Interface dataObjectModificationBefore,
  92             Interface dataObjectModificationAfter) {
  93         // Not required to handle this event
  94     }
  95
  96     @Override
  97     protected void add(InstanceIdentifier<Interface> key, Interface dataObjectModification) {
  98         // Not required to handle this event
  99     }
 100
 101     @Override
 102     protected ElanInterfaceConfigListener getDataTreeChangeListener() {
 103         return this;
 104     }
 105
 106 }