dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpInterfaceConfigListener.java

   1 /*
   2  * Copyright (c) 2016 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
   9 package org.opendaylight.netvirt.dhcpservice;
  10
  11 import java.util.Collections;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  15 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  16 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  17 import org.opendaylight.genius.mdsalutil.NwConstants;
  18 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  19 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlan;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.ParentRefs;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class DhcpInterfaceConfigListener
  33         extends AsyncDataTreeChangeListenerBase<Interface, DhcpInterfaceConfigListener> {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(DhcpInterfaceConfigListener.class);
  36
  37     private final ManagedNewTransactionRunner txRunner;
  38     private final DhcpExternalTunnelManager dhcpExternalTunnelManager;
  39     private final DhcpManager dhcpManager;
  40     private final JobCoordinator jobCoordinator;
  41
  42     public DhcpInterfaceConfigListener(DataBroker dataBroker,
  43             DhcpExternalTunnelManager dhcpExternalTunnelManager, DhcpManager dhcpManager,
  44             JobCoordinator jobCoordinator) {
  45         super(Interface.class, DhcpInterfaceConfigListener.class);
  46         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  47         this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
  48         this.dhcpManager = dhcpManager;
  49         this.jobCoordinator = jobCoordinator;
  50         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  51     }
  52
  53     @Override
  54     public void close() {
  55         super.close();
  56         LOG.info("DhcpInterfaceConfigListener Closed");
  57     }
  58
  59     @Override
  60     protected void remove(InstanceIdentifier<Interface> identifier, Interface del) {
  61         jobCoordinator.enqueueJob(DhcpServiceUtils.getJobKey(del.getName()), () -> {
  62             IfTunnel tunnelInterface = del.augmentation(IfTunnel.class);
  63             IfL2vlan vlanInterface = del.augmentation(IfL2vlan.class);
  64             String interfaceName = del.getName();
  65             if (tunnelInterface != null && !tunnelInterface.isInternal()) {
  66                 IpAddress tunnelIp = tunnelInterface.getTunnelDestination();
  67                 ParentRefs interfce = del.augmentation(ParentRefs.class);
  68                 if (interfce != null) {
  69                     if (LOG.isTraceEnabled()) {
  70                         LOG.trace("Calling handleTunnelStateDown for tunnelIp {} and interface {}",
  71                                 tunnelIp, interfaceName);
  72                     }
  73                     return dhcpExternalTunnelManager.handleTunnelStateDown(tunnelIp,
  74                             interfce.getDatapathNodeIdentifier());
  75                 }
  76             }
  77             if (vlanInterface != null) {
  78                 return Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(
  79                     tx -> DhcpServiceUtils.unbindDhcpService(interfaceName, tx)));
  80             }
  81             return Collections.emptyList();
  82         }, DhcpMConstants.RETRY_COUNT);
  83     }
  84
  85     @Override
  86     protected void update(InstanceIdentifier<Interface> identifier, Interface original, Interface update) {
  87         // Handled in update () DhcpInterfaceEventListener
  88     }
  89
  90     @Override
  91     protected void add(InstanceIdentifier<Interface> identifier, Interface add) {
  92         jobCoordinator.enqueueJob(DhcpServiceUtils.getJobKey(add.getName()), () -> {
  93             String interfaceName = add.getName();
  94             IfL2vlan vlanInterface = add.augmentation(IfL2vlan.class);
  95             if (vlanInterface == null) {
  96                 return Collections.emptyList();
  97             }
  98             Port port = dhcpManager.getNeutronPort(interfaceName);
  99             Subnet subnet = dhcpManager.getNeutronSubnet(port);
 100             if (null != subnet && subnet.isEnableDhcp()) {
 101                 return Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
 102                     LOG.debug("Binding DHCP service for interface {}", interfaceName);
 103                     DhcpServiceUtils.bindDhcpService(interfaceName, NwConstants.DHCP_TABLE, tx);
 104                 }));
 105             }
 106             return Collections.emptyList();
 107         }, DhcpMConstants.RETRY_COUNT);
 108     }
 109
 110     @Override
 111     protected InstanceIdentifier<Interface> getWildCardPath() {
 112         return InstanceIdentifier.create(Interfaces.class).child(Interface.class);
 113     }
 114
 115     @Override
 116     protected DhcpInterfaceConfigListener getDataTreeChangeListener() {
 117         return DhcpInterfaceConfigListener.this;
 118     }
 119 }