aclservice/impl/src/main/java/org/opendaylight/netvirt/aclservice/listeners/AclElanInterfaceListener.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.aclservice.listeners;
   9
  10 import javax.annotation.PreDestroy;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.opendaylight.infrautils.utils.concurrent.Executors;
  14 import org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener;
  15 import org.opendaylight.mdsal.binding.api.DataBroker;
  16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  17 import org.opendaylight.netvirt.aclservice.api.AclInterfaceCache;
  18 import org.opendaylight.netvirt.aclservice.api.AclServiceManager;
  19 import org.opendaylight.netvirt.aclservice.api.AclServiceManager.Action;
  20 import org.opendaylight.netvirt.aclservice.api.utils.AclInterface;
  21 import org.opendaylight.netvirt.aclservice.utils.AclClusterUtil;
  22 import org.opendaylight.netvirt.aclservice.utils.AclServiceUtils;
  23 import org.opendaylight.serviceutils.srm.RecoverableListener;
  24 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  25 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInterfaces;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 @Singleton
  34 public class AclElanInterfaceListener extends AbstractAsyncDataTreeChangeListener<ElanInterface>
  35         implements ClusteredDataTreeChangeListener<ElanInterface>, RecoverableListener {
  36     private static final Logger LOG = LoggerFactory.getLogger(AclElanInterfaceListener.class);
  37
  38     private final AclServiceManager aclServiceManager;
  39     private final AclClusterUtil aclClusterUtil;
  40     private final DataBroker dataBroker;
  41     private final AclInterfaceCache aclInterfaceCache;
  42
  43     @Inject
  44     public AclElanInterfaceListener(AclServiceManager aclServiceManager, AclClusterUtil aclClusterUtil,
  45             DataBroker dataBroker, AclInterfaceCache aclInterfaceCache,
  46             ServiceRecoveryRegistry serviceRecoveryRegistry) {
  47         super(dataBroker, LogicalDatastoreType.CONFIGURATION,
  48                 InstanceIdentifier.create(ElanInterfaces.class).child(ElanInterface.class),
  49                 Executors.newListeningSingleThreadExecutor("AclElanInterfaceListener", LOG));
  50         this.aclServiceManager = aclServiceManager;
  51         this.aclClusterUtil = aclClusterUtil;
  52         this.dataBroker = dataBroker;
  53         this.aclInterfaceCache = aclInterfaceCache;
  54         serviceRecoveryRegistry.addRecoverableListener(AclServiceUtils.getRecoverServiceRegistryKey(), this);
  55     }
  56
  57     public void init() {
  58         LOG.info("{} start", getClass().getSimpleName());
  59     }
  60
  61     @Override
  62     public void registerListener() {
  63         super.register();
  64     }
  65
  66     @Override
  67     public void deregisterListener() {
  68         super.close();
  69     }
  70
  71     @Override
  72     public void remove(InstanceIdentifier<ElanInterface> key, ElanInterface dataObjectModification) {
  73         // do nothing
  74     }
  75
  76     @Override
  77     public void update(InstanceIdentifier<ElanInterface> key, ElanInterface dataObjectModificationBefore,
  78             ElanInterface dataObjectModificationAfter) {
  79         // do nothing
  80     }
  81
  82     @Override
  83     public void add(InstanceIdentifier<ElanInterface> key, ElanInterface elanInterface) {
  84         String interfaceId = elanInterface.getName();
  85         AclInterface aclInterface = aclInterfaceCache.updateIfPresent(interfaceId, (prevAclInterface, builder) -> {
  86             if (prevAclInterface.getElanId() == null) {
  87                 ElanInstance elanInfo = AclServiceUtils.getElanInstanceByName(elanInterface.getElanInstanceName(),
  88                         dataBroker);
  89                 if (elanInfo != null) {
  90                     builder.elanId(elanInfo.getElanTag().toJava());
  91                 }
  92                 return true;
  93             }
  94
  95             return false;
  96         });
  97
  98         if (aclInterface == null) {
  99             LOG.debug("On Add event, ignore if AclInterface was not found in cache or was not updated");
 100             return;
 101         }
 102
 103         if (aclInterface.getDpId() != null && aclClusterUtil.isEntityOwner()) {
 104             // Notify ADD flows, if InterfaceStateListener has processed before ELAN-ID getting populated
 105             LOG.debug("On add event, notify ACL service manager to BIND/ADD ACL for interface: {}", aclInterface);
 106             aclServiceManager.notify(aclInterface, null, Action.BIND);
 107             aclServiceManager.notify(aclInterface, null, Action.ADD);
 108         }
 109     }
 110
 111     @Override
 112     @PreDestroy
 113     public void close() {
 114         super.close();
 115         Executors.shutdownAndAwaitTermination(getExecutorService());
 116     }
 117 }