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.genius.infra.Datastore.CONFIGURATION;
  11
  12 import com.google.common.base.Optional;
  13 import java.util.Collections;
  14 import javax.annotation.PostConstruct;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  20 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  21 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  22 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  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.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlan;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 @Singleton
  35 public class ElanInterfaceConfigListener
  36     extends AsyncDataTreeChangeListenerBase<Interface, ElanInterfaceConfigListener> {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(ElanInterfaceConfigListener.class);
  39
  40     private final DataBroker dataBroker;
  41     private final ManagedNewTransactionRunner txRunner;
  42     private final ElanInterfaceManager elanInterfaceManager;
  43     private final JobCoordinator jobCoordinator;
  44     private final ElanInterfaceCache elanInterfaceCache;
  45
  46     @Inject
  47     public ElanInterfaceConfigListener(DataBroker dataBroker, ElanInterfaceManager elanInterfaceManager,
  48             JobCoordinator jobCoordinator, ElanInterfaceCache elanInterfaceCache) {
  49         super(Interface.class, ElanInterfaceConfigListener.class);
  50         this.dataBroker = dataBroker;
  51         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  52         this.elanInterfaceManager = elanInterfaceManager;
  53         this.jobCoordinator = jobCoordinator;
  54         this.elanInterfaceCache = elanInterfaceCache;
  55     }
  56
  57     @Override
  58     @PostConstruct
  59     public void init() {
  60         LOG.info("ElanInterfaceConfigListener init");
  61         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  62     }
  63
  64     @Override
  65     protected InstanceIdentifier<Interface> getWildCardPath() {
  66         return InstanceIdentifier.create(Interfaces.class).child(Interface.class);
  67     }
  68
  69     @Override
  70     protected void remove(InstanceIdentifier<Interface> key, Interface intrf) {
  71         // Sometimes elan service is not unbound on the interface when the user does nova delete followed
  72         // by neutron port delete since interface config is deleted a bit later. so adding logic to
  73         // unbind service for interface config removal.
  74         if (intrf == null || intrf.augmentation(IfL2vlan.class) == null) {
  75             LOG.debug("The interface {} is not a L2 interface. Ignoring it", intrf);
  76             return;
  77         }
  78
  79         String interfaceName = intrf.getName();
  80         Optional<ElanInterface> elanInterface = elanInterfaceCache.get(interfaceName);
  81         if (!elanInterface.isPresent()) {
  82             LOG.debug("There is no ELAN service for interface {}. Ignoring it", interfaceName);
  83             return;
  84         }
  85         jobCoordinator.enqueueJob(ElanUtils.getElanInterfaceJobKey(interfaceName),
  86             () -> Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION, tx -> {
  87                 LOG.debug("unbinding elan service on interface {} for its config removal", interfaceName);
  88                 elanInterfaceManager.unbindService(interfaceName, tx);
  89             })), ElanConstants.JOB_MAX_RETRIES);
  90     }
  91
  92     @Override
  93     protected void update(InstanceIdentifier<Interface> key, Interface dataObjectModificationBefore,
  94             Interface dataObjectModificationAfter) {
  95         // Not required to handle this event
  96     }
  97
  98     @Override
  99     protected void add(InstanceIdentifier<Interface> key, Interface dataObjectModification) {
 100         // Not required to handle this event
 101     }
 102
 103     @Override
 104     protected ElanInterfaceConfigListener getDataTreeChangeListener() {
 105         return this;
 106     }
 107
 108 }