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 java.math.BigInteger;
  12 import java.util.List;
  13
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.vpnservice.datastoreutils.DataStoreJobCoordinator;
  19 import org.opendaylight.vpnservice.elan.utils.ElanConstants;
  20 import org.opendaylight.vpnservice.elan.utils.ElanUtils;
  21 import org.opendaylight.vpnservice.interfacemgr.globals.InterfaceInfo;
  22 import org.opendaylight.vpnservice.interfacemgr.interfaces.IInterfaceManager;
  23 import org.opendaylight.vpnservice.mdsalutil.AbstractDataChangeListener;
  24 import org.opendaylight.vpnservice.mdsalutil.MDSALUtil;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.elan.instances.ElanInstance;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.elan.interfaces.ElanInterface;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.TunnelList;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.tunnel.list.InternalTunnel;
  33 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  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     @Override
  71     protected void remove(InstanceIdentifier<Interface> identifier, Interface delIf) {
  72         logger.trace("Received interface {} Down event", delIf);
  73         String interfaceName =  delIf.getName();
  74         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
  75         if(elanInterface == null) {
  76             logger.debug("No Elan Interface is created for the interface:{} ", interfaceName);
  77             return;
  78         }
  79         NodeConnectorId nodeConnectorId = new NodeConnectorId(delIf.getLowerLayerIf().get(0));
  80         BigInteger dpId = BigInteger.valueOf(MDSALUtil.getDpnIdFromPortName(nodeConnectorId));
  81         InterfaceInfo interfaceInfo = new InterfaceInfo(dpId, nodeConnectorId.getValue());
  82         interfaceInfo.setInterfaceName(interfaceName);
  83         interfaceInfo.setInterfaceType(InterfaceInfo.InterfaceType.VLAN_INTERFACE);
  84         interfaceInfo.setInterfaceTag(delIf.getIfIndex());
  85         String elanInstanceName = elanInterface.getElanInstanceName();
  86         ElanInstance elanInstance = ElanUtils.getElanInstanceByName(elanInstanceName);
  87         DataStoreJobCoordinator coordinator = DataStoreJobCoordinator.getInstance();
  88         ElanInterfaceRemoveWorker removeWorker = new ElanInterfaceRemoveWorker(elanInstanceName, elanInstance,
  89                 interfaceName, interfaceInfo, elanInterfaceManager);
  90         coordinator.enqueueJob(elanInstanceName, removeWorker, ElanConstants.JOB_MAX_RETRIES);
  91     }
  92
  93     @Override
  94     protected void update(InstanceIdentifier<Interface> identifier, Interface original, Interface update) {
  95         logger.trace("Operation Interface update event - Old: {}, New: {}", original, update);
  96         String interfaceName = update.getName();
  97         if (update.getType() == null) {
  98             logger.trace("Interface type for interface {} is null", interfaceName);
  99             return;
 100         }
 101         if(update.getType().equals(Tunnel.class)) {
 102             if (update.getOperStatus().equals(Interface.OperStatus.Up)) {
 103                 InternalTunnel internalTunnel = getTunnelState(interfaceName);
 104                 if (internalTunnel != null) {
 105                     elanInterfaceManager.handleInternalTunnelStateEvent(internalTunnel.getSourceDPN(), internalTunnel.getDestinationDPN());
 106                 }
 107             }
 108         }
 109     }
 110
 111     @Override
 112     protected void add(InstanceIdentifier<Interface> identifier, Interface intrf) {
 113         logger.trace("Received interface {} up event", intrf);
 114         String interfaceName =  intrf.getName();
 115         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
 116         if(elanInterface == null) {
 117             if (intrf.getType() != null && intrf.getType().equals(Tunnel.class)) {
 118                 if(intrf.getOperStatus().equals(Interface.OperStatus.Up)) {
 119                     InternalTunnel internalTunnel = getTunnelState(interfaceName);
 120                     if (internalTunnel != null) {
 121                         elanInterfaceManager.handleInternalTunnelStateEvent(internalTunnel.getSourceDPN(),
 122                                 internalTunnel.getDestinationDPN());
 123                     }
 124                 }
 125             }
 126             return;
 127         }
 128         InstanceIdentifier<ElanInterface> elanInterfaceId = ElanUtils.getElanInterfaceConfigurationDataPathId(interfaceName);
 129         elanInterfaceManager.add(elanInterfaceId, elanInterface);
 130     }
 131
 132     @Override
 133     public void close() throws Exception {
 134
 135     }
 136
 137     public  InternalTunnel getTunnelState(String interfaceName) {
 138         InternalTunnel internalTunnel = null;
 139         TunnelList tunnelList = ElanUtils.buildInternalTunnel(broker);
 140         if (tunnelList != null && tunnelList.getInternalTunnel() != null) {
 141             List<InternalTunnel> internalTunnels = tunnelList.getInternalTunnel();
 142             for (InternalTunnel tunnel : internalTunnels) {
 143                 if (tunnel.getTunnelInterfaceName().equalsIgnoreCase(interfaceName)) {
 144                     internalTunnel = tunnel;
 145                     break;
 146                 }
 147             }
 148         }
 149         return internalTunnel;
 150     }
 151 }