cloud-servicechain/cloud-servicechain-impl/src/main/java/org/opendaylight/netvirt/cloudservicechain/listeners/VpnToDpnListener.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 package org.opendaylight.netvirt.cloudservicechain.listeners;
   9
  10 import com.google.common.base.Optional;
  11 import java.math.BigInteger;
  12 import java.util.List;
  13
  14 import javax.inject.Inject;
  15 import javax.inject.Singleton;
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.genius.mdsalutil.NwConstants;
  18 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  19 import org.opendaylight.netvirt.cloudservicechain.CloudServiceChainConstants;
  20 import org.opendaylight.netvirt.cloudservicechain.VPNServiceChainHandler;
  21 import org.opendaylight.netvirt.cloudservicechain.utils.VpnServiceChainUtils;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.cloud.servicechain.state.rev160711.vpn.to.pseudo.port.list.VpnToPseudoPortData;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.AddDpnEvent;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.AddInterfaceToDpnOnVpnEvent;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.OdlL3vpnListener;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.RemoveDpnEvent;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.RemoveInterfaceFromDpnOnVpnEvent;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 @Singleton
  33 public class VpnToDpnListener implements OdlL3vpnListener {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(VpnToDpnListener.class);
  36     private final DataBroker broker;
  37     private final IMdsalApiManager mdsalMgr;
  38     private final VPNServiceChainHandler vpnScHandler;
  39
  40     @Inject
  41     public VpnToDpnListener(final DataBroker db, final IMdsalApiManager mdsalManager,
  42                             final VPNServiceChainHandler vpnServiceChainHandler) {
  43         this.broker = db;
  44         this.mdsalMgr = mdsalManager;
  45         this.vpnScHandler = vpnServiceChainHandler;
  46     }
  47
  48     @Override
  49     public void onAddDpnEvent(AddDpnEvent notification) {
  50         programVpnScfFlowsOnDpn(notification.getAddEventData().getDpnId(),
  51                                 notification.getAddEventData().getVpnName(),
  52                                 notification.getAddEventData().getRd(),
  53                                 NwConstants.ADD_FLOW);
  54
  55     }
  56
  57     @Override
  58     public void onRemoveDpnEvent(RemoveDpnEvent notification) {
  59         programVpnScfFlowsOnDpn(notification.getRemoveEventData().getDpnId(),
  60                                 notification.getRemoveEventData().getVpnName(),
  61                                 notification.getRemoveEventData().getRd(),
  62                                 NwConstants.DEL_FLOW);
  63     }
  64
  65     private void programVpnScfFlowsOnDpn(BigInteger dpnId, String vpnName, String rd, int addOrRemove) {
  66         String addedOrRemovedTxt = addOrRemove == NwConstants.ADD_FLOW ? " added " : " removed";
  67         LOG.debug("DpnToVpn {} event received: dpn={}  vpn={}  rd={}", addedOrRemovedTxt, dpnId, vpnName, rd);
  68         if (dpnId == null) {
  69             LOG.warn("Dpn to Vpn {} event received, but no DPN specified in event", addedOrRemovedTxt);
  70             return;
  71         }
  72
  73         if (vpnName == null) {
  74             LOG.warn("Dpn to Vpn {} event received, but no VPN specified in event", addedOrRemovedTxt);
  75             return;
  76         }
  77
  78         if (rd == null) {
  79             LOG.warn("Dpn to Vpn {} event received, but no RD specified in event", addedOrRemovedTxt);
  80             return;
  81         }
  82
  83         Optional<VpnToPseudoPortData> optVpnToPseudoPortInfo = VpnServiceChainUtils.getVpnPseudoPortData(broker, rd);
  84
  85         if (!optVpnToPseudoPortInfo.isPresent()) {
  86             LOG.debug("Dpn to Vpn {} event received: Could not find VpnPseudoLportTag for VPN name={}  rd={}",
  87                       addedOrRemovedTxt, vpnName, rd);
  88             return;
  89         }
  90
  91         VpnToPseudoPortData vpnToPseudoPortInfo = optVpnToPseudoPortInfo.get();
  92
  93         // Vpn2Scf flows (LFIB + LportDispatcher)
  94         // TODO: Should we filter out by bgp origin
  95         List<VrfEntry> allVpnVrfEntries = VpnServiceChainUtils.getAllVrfEntries(broker, rd);
  96         vpnScHandler.programVpnToScfPipelineOnDpn(dpnId, allVpnVrfEntries,
  97                                                   vpnToPseudoPortInfo.getScfTableId(),
  98                                                   vpnToPseudoPortInfo.getScfTag(),
  99                                                   vpnToPseudoPortInfo.getVpnLportTag().intValue(),
 100                                                   addOrRemove);
 101
 102         // Scf2Vpn flow (LportDispatcher)
 103         long vpnId = addOrRemove == NwConstants.ADD_FLOW ? VpnServiceChainUtils.getVpnId(broker, vpnName)
 104                 : CloudServiceChainConstants.INVALID_VPN_TAG;
 105         VpnServiceChainUtils.programLPortDispatcherFlowForScfToVpn(mdsalMgr, vpnId, dpnId,
 106                                                                    vpnToPseudoPortInfo.getVpnLportTag().intValue(),
 107                                                                    addOrRemove);
 108     }
 109
 110     @Override
 111     public void onAddInterfaceToDpnOnVpnEvent(AddInterfaceToDpnOnVpnEvent notification) {
 112     }
 113
 114     @Override
 115     public void onRemoveInterfaceFromDpnOnVpnEvent(RemoveInterfaceFromDpnOnVpnEvent notification) {
 116     }
 117
 118 }