vpnservice/ipv6service/impl/src/main/java/org/opendaylight/netvirt/ipv6service/NeutronSubnetChangeListener.java

   1 /*
   2  * Copyright (c) 2016 Red Hat, Inc. 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.ipv6service;
   9
  10 import com.google.common.collect.ImmutableBiMap;
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  13 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.genius.mdsalutil.AbstractDataChangeListener;
  16 import org.opendaylight.netvirt.ipv6service.utils.Ipv6Constants;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.Dhcpv6Base;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.Dhcpv6Off;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.Dhcpv6Slaac;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.Dhcpv6Stateful;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.Dhcpv6Stateless;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.IpVersionBase;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.IpVersionV4;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712.IpVersionV6;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.Subnets;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
  28 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class NeutronSubnetChangeListener extends AbstractDataChangeListener<Subnet> implements AutoCloseable {
  34     private static final Logger LOG = LoggerFactory.getLogger(NeutronSubnetChangeListener.class);
  35     private static final ImmutableBiMap<Class<? extends IpVersionBase>,String> IPV_MAP
  36             = new ImmutableBiMap.Builder<Class<? extends IpVersionBase>,String>()
  37             .put(IpVersionV4.class, Ipv6Constants.IP_VERSION_V4)
  38             .put(IpVersionV6.class, Ipv6Constants.IP_VERSION_V6)
  39             .build();
  40
  41     private static final ImmutableBiMap<Class<? extends Dhcpv6Base>,String> DHCPV6_MAP
  42             = new ImmutableBiMap.Builder<Class<? extends Dhcpv6Base>,String>()
  43             .put(Dhcpv6Off.class,Ipv6Constants.DHCPV6_OFF)
  44             .put(Dhcpv6Stateful.class,Ipv6Constants.IPV6_DHCPV6_STATEFUL)
  45             .put(Dhcpv6Slaac.class,Ipv6Constants.IPV6_SLAAC)
  46             .put(Dhcpv6Stateless.class,Ipv6Constants.IPV6_DHCPV6_STATELESS)
  47             .build();
  48
  49     private ListenerRegistration<DataChangeListener> listenerRegistration;
  50     private IfMgr ifMgr;
  51     private final DataBroker broker;
  52
  53     public NeutronSubnetChangeListener(final DataBroker db) {
  54         super(Subnet.class);
  55         broker = db;
  56         this.ifMgr = IfMgr.getIfMgrInstance();
  57         registerListener(db);
  58     }
  59
  60     @Override
  61     public void close() throws Exception {
  62         if (listenerRegistration != null) {
  63             listenerRegistration.close();
  64             listenerRegistration = null;
  65         }
  66         LOG.info("Neutron Subnet listener Closed");
  67     }
  68
  69     private void registerListener(final DataBroker db) {
  70         listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
  71                 InstanceIdentifier.create(Neutron.class).child(Subnets.class).child(Subnet.class),
  72                 NeutronSubnetChangeListener.this, DataChangeScope.SUBTREE);
  73     }
  74
  75     @Override
  76     protected void add(InstanceIdentifier<Subnet> identifier, Subnet input) {
  77         LOG.info("Add Subnet notification handler is invoked...");
  78         String ipv6AddrMode = "";
  79         if (input.getIpv6AddressMode() != null) {
  80             ipv6AddrMode = DHCPV6_MAP.get(input.getIpv6AddressMode());
  81         }
  82         String ipv6RaMode = "";
  83         if (input.getIpv6RaMode() != null) {
  84             ipv6RaMode = DHCPV6_MAP.get(input.getIpv6RaMode());
  85         }
  86         ifMgr.addSubnet(input.getUuid(), input.getName(), input.getNetworkId(),
  87                 input.getTenantId(), input.getGatewayIp(), IPV_MAP.get(input.getIpVersion()),
  88                 input.getCidr(), ipv6AddrMode, ipv6RaMode);
  89     }
  90
  91     @Override
  92     protected void remove(InstanceIdentifier<Subnet> identifier, Subnet input) {
  93         LOG.info("Remove Subnet notification handler is invoked...");
  94         ifMgr.removeSubnet(input.getUuid());
  95     }
  96
  97     @Override
  98     protected void update(InstanceIdentifier<Subnet> identifier, Subnet original, Subnet update) {
  99         LOG.info("Update Subnet notification handler is invoked...");
 100     }
 101 }