elanmanager/elanmanager-impl/src/main/java/org/opendaylight/vpnservice/elan/internal/ElanInterfaceStateChangeListener.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.vpnservice.elan.internal;
   9
  10
  11 import com.google.common.base.Optional;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.vpnservice.elan.utils.ElanUtils;
  17 import org.opendaylight.vpnservice.interfacemgr.globals.InterfaceInfo;
  18 import org.opendaylight.vpnservice.interfacemgr.interfaces.IInterfaceManager;
  19 import org.opendaylight.vpnservice.mdsalutil.AbstractDataChangeListener;
  20 import org.opendaylight.vpnservice.mdsalutil.MDSALUtil;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.elan.instances.ElanInstance;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.elan.interfaces.ElanInterface;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.TunnelList;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.tunnel.list.InternalTunnel;
  30 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 import java.math.BigInteger;
  36 import java.util.List;
  37
  38 public class ElanInterfaceStateChangeListener extends AbstractDataChangeListener<Interface> implements AutoCloseable {
  39     private DataBroker broker;
  40     private IInterfaceManager interfaceManager;
  41     private ElanInterfaceManager elanInterfaceManager;
  42     private ListenerRegistration<DataChangeListener> listenerRegistration;
  43     private static final Logger logger = LoggerFactory.getLogger(ElanInterfaceStateChangeListener.class);
  44
  45     public ElanInterfaceStateChangeListener(final DataBroker db, final ElanInterfaceManager ifManager) {
  46         super(Interface.class);
  47         broker = db;
  48         elanInterfaceManager = ifManager;
  49         registerListener(db);
  50     }
  51
  52     private void registerListener(final DataBroker db) {
  53         try {
  54             listenerRegistration = broker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
  55                     getWildCardPath(), ElanInterfaceStateChangeListener.this, AsyncDataBroker.DataChangeScope.SUBTREE);
  56         } catch (final Exception e) {
  57             logger.error("Elan Interfaces DataChange listener registration fail!", e);
  58             throw new IllegalStateException("ElanInterface registration Listener failed.", e);
  59         }
  60     }
  61
  62     private InstanceIdentifier<Interface> getWildCardPath() {
  63         return InstanceIdentifier.create(InterfacesState.class).child(Interface.class);
  64     }
  65
  66     public void setInterfaceManager(IInterfaceManager interfaceManager) {
  67         this.interfaceManager = interfaceManager;
  68     }
  69
  70     private void handleVlanInterfaceOperationalStateChange(String interfaceName, boolean isStateUp) {
  71         //fetching the elanInstanceName from elan-interface config data-store
  72         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
  73         if (elanInterface == null) {
  74             return;
  75         }
  76         ElanInstance elanInfo = ElanUtils.getElanInstanceByName(elanInterface.getElanInstanceName());
  77         InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfoFromOperationalDataStore(interfaceName,
  78                 InterfaceInfo.InterfaceType.VLAN_INTERFACE);
  79         if (interfaceInfo == null) {
  80             logger.warn("Interface {} doesn't exist in operational datastore", interfaceName);
  81             return;
  82         }
  83
  84         logger.trace("ElanService Interface Operational state has changes for Interface:{}", interfaceName);
  85         elanInterfaceManager.handleInterfaceUpated(interfaceInfo, elanInfo , isStateUp);
  86     }
  87
  88     @Override
  89     protected void remove(InstanceIdentifier<Interface> identifier, Interface delIf) {
  90         logger.trace("Received interface {} Down event", delIf);
  91         String interfaceName =  delIf.getName();
  92         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
  93         if(elanInterface == null) {
  94             logger.debug("No Elan Interface is created for the interface:{} ", interfaceName);
  95             return;
  96         }
  97         NodeConnectorId nodeConnectorId = new NodeConnectorId(delIf.getLowerLayerIf().get(0));
  98         BigInteger dpId = MDSALUtil.getDpnIdFromNodeName(nodeConnectorId.getValue());
  99         InterfaceInfo interfaceInfo = new InterfaceInfo(dpId, nodeConnectorId.getValue());
 100         interfaceInfo.setInterfaceName(interfaceName);
 101         interfaceInfo.setInterfaceType(InterfaceInfo.InterfaceType.VLAN_INTERFACE);
 102         interfaceInfo.setInterfaceTag(delIf.getIfIndex());
 103         elanInterfaceManager.removeElanService(elanInterface, interfaceInfo);
 104     }
 105
 106     @Override
 107     protected void update(InstanceIdentifier<Interface> identifier, Interface original, Interface update) {
 108         logger.trace("Operation Interface update event - Old: {}, New: {}", original, update);
 109         String interfaceName = update.getName();
 110         if(update.getType().equals(Tunnel.class)) {
 111             if (update.getOperStatus().equals(Interface.OperStatus.Up)) {
 112                 InternalTunnel internalTunnel = getTunnelState(interfaceName);
 113                 if (internalTunnel != null) {
 114                     elanInterfaceManager.handleTunnelStateEvent(internalTunnel.getSourceDPN(), internalTunnel.getDestinationDPN());
 115                 }
 116             }
 117         } else if(update.getType().equals(L2vlan.class)) {
 118             ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
 119             if(elanInterface == null) {
 120                 logger.debug("No Elan Interface is created for the interface:{} ", interfaceName);
 121                 return;
 122             }
 123             if (update.getOperStatus().equals(Interface.OperStatus.Up) && update.getAdminStatus() == Interface.AdminStatus.Up) {
 124                 logger.trace("Operation Status for Interface:{}  event state UP ", interfaceName);
 125                 handleVlanInterfaceOperationalStateChange(interfaceName, true);
 126             } else if (update.getOperStatus().equals(Interface.OperStatus.Down)) {
 127                 logger.trace("Operation Status for Interface:{}  event state DOWN ", interfaceName);
 128                 handleVlanInterfaceOperationalStateChange(interfaceName, false);
 129             }
 130
 131         }
 132     }
 133
 134     @Override
 135     protected void add(InstanceIdentifier<Interface> identifier, Interface intrf) {
 136         logger.trace("Received interface {} up event", intrf);
 137         String interfaceName =  intrf.getName();
 138         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
 139         if(elanInterface == null) {
 140             if (intrf.getType() != null && intrf.getType().equals(Tunnel.class)) {
 141                 if(intrf.getOperStatus().equals(Interface.OperStatus.Up)) {
 142                     InternalTunnel internalTunnel = getTunnelState(interfaceName);
 143                     if (internalTunnel != null) {
 144                         elanInterfaceManager.handleTunnelStateEvent(internalTunnel.getSourceDPN(), internalTunnel.getDestinationDPN());
 145                     }
 146                 }
 147             }
 148             return;
 149         }
 150         InstanceIdentifier<ElanInterface> elanInterfaceId = ElanUtils.getElanInterfaceConfigurationDataPathId(interfaceName);
 151         elanInterfaceManager.add(elanInterfaceId, elanInterface);
 152     }
 153
 154     @Override
 155     public void close() throws Exception {
 156
 157     }
 158
 159     public  InternalTunnel getTunnelState(String interfaceName) {
 160         InternalTunnel internalTunnel = null;
 161         TunnelList tunnelList = ElanUtils.buildInternalTunnel(broker);
 162         if (tunnelList.getInternalTunnel() != null) {
 163             List<InternalTunnel> internalTunnels = tunnelList.getInternalTunnel();
 164             for (InternalTunnel tunnel : internalTunnels) {
 165                 if (internalTunnel.getTunnelInterfaceName().equalsIgnoreCase(interfaceName)) {
 166                     internalTunnel = tunnel;
 167                     break;
 168                 }
 169             }
 170         }
 171         return internalTunnel;
 172     }
 173 }