netvirt/src/main/java/org/opendaylight/unimgr/mef/netvirt/TenantUniListener.java

   1 /*
   2  * Copyright (c) 2016 Hewlett Packard Enterprise, Co. 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
   9 package org.opendaylight.unimgr.mef.netvirt;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  13 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.unimgr.api.UnimgrDataTreeChangeListener;
  16 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.services.rev150526.MefServices;
  17 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.services.rev150526.mef.services.MefService;
  18 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.Uni;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 import com.google.common.base.Optional;
  24
  25 public class TenantUniListener extends UnimgrDataTreeChangeListener<Uni> {
  26
  27     private static final Logger log = LoggerFactory.getLogger(TenantUniListener.class);
  28     private ListenerRegistration<TenantUniListener> evcListenerRegistration;
  29
  30     public TenantUniListener(final DataBroker dataBroker) {
  31         super(dataBroker);
  32
  33         registerListener();
  34     }
  35
  36     public void registerListener() {
  37         try {
  38             final DataTreeIdentifier<Uni> dataTreeIid = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
  39                     MefUtils.getUniListInterfaceInstanceIdentifier());
  40             evcListenerRegistration = dataBroker.registerDataTreeChangeListener(dataTreeIid, this);
  41             log.info("TenantUniListener created and registered");
  42         } catch (final Exception e) {
  43             log.error("TenantUniListener registration failed !", e);
  44             throw new IllegalStateException("Evc registration Listener failed.", e);
  45         }
  46     }
  47
  48     @Override
  49     public void close() throws Exception {
  50         evcListenerRegistration.close();
  51     }
  52
  53     @Override
  54     public void add(DataTreeModification<Uni> newDataObject) {
  55         log.info("received add Uni notification");
  56         handleUniChanged(newDataObject.getRootNode().getDataAfter());
  57     }
  58
  59     @Override
  60     public void remove(DataTreeModification<Uni> removedDataObject) {
  61     }
  62
  63     @Override
  64     public void update(DataTreeModification<Uni> modifiedDataObject) {
  65         log.info("received update Uni notification");
  66         handleUniChanged(modifiedDataObject.getRootNode().getDataAfter());
  67     }
  68
  69     private void handleUniChanged(Uni uni) {
  70         if (!TenantEnhancerUtils.isUniTenanted(uni)) {
  71             return;
  72         }
  73
  74         String tenant = uni.getTenantId();
  75
  76         Optional<MefServices> optionalServices = MdsalUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
  77                 MefUtils.getMefServicesInstanceIdentifier());
  78         if (!optionalServices.isPresent()) {
  79             return;
  80         }
  81         for (MefService service : optionalServices.get().getMefService()) {
  82             for (org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.services.rev150526.mef.services.mef.service.evc.unis.Uni serviceUni : service
  83                     .getEvc().getUnis().getUni()) {
  84                 if (!TenantEnhancerUtils.isServiceTenanted(service) && serviceUni.getUniId().equals(uni.getUniId())) {
  85                     log.info("instance identifier is {}", MefUtils.getMefServiceInstanceIdentifier(service.getSvcId()));
  86                     TenantEnhancerUtils.updateService(dataBroker, tenant, service);
  87                 }
  88             }
  89         }
  90     }
  91 }