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.getInterfaceInfo(interfaceName);
  78
  79         logger.trace("ElanService Interface Operational state has changes for Interface:{}", interfaceName);
  80         elanInterfaceManager.handleInterfaceUpated(interfaceInfo, elanInfo , isStateUp);
  81     }
  82
  83     @Override
  84     protected void remove(InstanceIdentifier<Interface> identifier, Interface delIf) {
  85         logger.trace("Received interface {} Down event", delIf);
  86         String interfaceName =  delIf.getName();
  87         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
  88         if(elanInterface == null) {
  89             logger.debug("No Elan Interface is created for the interface:{} ", interfaceName);
  90             return;
  91         }
  92         NodeConnectorId nodeConnectorId = new NodeConnectorId(delIf.getLowerLayerIf().get(0));
  93         BigInteger dpId = MDSALUtil.getDpnIdFromNodeName(nodeConnectorId.getValue());
  94         InterfaceInfo interfaceInfo = new InterfaceInfo(dpId, nodeConnectorId.getValue());
  95         interfaceInfo.setInterfaceName(interfaceName);
  96         interfaceInfo.setInterfaceType(InterfaceInfo.InterfaceType.VLAN_INTERFACE);
  97         interfaceInfo.setInterfaceTag(delIf.getIfIndex());
  98         elanInterfaceManager.removeElanService(elanInterface, interfaceInfo);
  99     }
 100
 101     @Override
 102     protected void update(InstanceIdentifier<Interface> identifier, Interface original, Interface update) {
 103         logger.trace("Operation Interface update event - Old: {}, New: {}", original, update);
 104         String interfaceName = update.getName();
 105         if(update.getType().equals(Tunnel.class)) {
 106             if (update.getOperStatus().equals(Interface.OperStatus.Up)) {
 107                 InternalTunnel internalTunnel = getTunnelState(interfaceName);
 108                 if (internalTunnel != null) {
 109                     elanInterfaceManager.handleTunnelStateEvent(internalTunnel.getSourceDPN(), internalTunnel.getDestinationDPN());
 110                 }
 111             }
 112         } else if(update.getType().equals(L2vlan.class)) {
 113             ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
 114             if(elanInterface == null) {
 115                 logger.debug("No Elan Interface is created for the interface:{} ", interfaceName);
 116                 return;
 117             }
 118             if (update.getOperStatus().equals(Interface.OperStatus.Up) && update.getAdminStatus() == Interface.AdminStatus.Up) {
 119                 logger.trace("Operation Status for Interface:{}  event state UP ", interfaceName);
 120                 handleVlanInterfaceOperationalStateChange(interfaceName, true);
 121             } else if (update.getOperStatus().equals(Interface.OperStatus.Down)) {
 122                 logger.trace("Operation Status for Interface:{}  event state DOWN ", interfaceName);
 123                 handleVlanInterfaceOperationalStateChange(interfaceName, false);
 124             }
 125
 126         }
 127     }
 128
 129     @Override
 130     protected void add(InstanceIdentifier<Interface> identifier, Interface intrf) {
 131         logger.trace("Received interface {} up event", intrf);
 132         String interfaceName =  intrf.getName();
 133         ElanInterface elanInterface = ElanUtils.getElanInterfaceByElanInterfaceName(interfaceName);
 134         if(elanInterface == null) {
 135             if (intrf.getType() != null && intrf.getType().equals(Tunnel.class)) {
 136                 if(intrf.getOperStatus().equals(Interface.OperStatus.Up)) {
 137                     InternalTunnel internalTunnel = getTunnelState(interfaceName);
 138                     if (internalTunnel != null) {
 139                         elanInterfaceManager.handleTunnelStateEvent(internalTunnel.getSourceDPN(), internalTunnel.getDestinationDPN());
 140                     }
 141                 }
 142             }
 143             return;
 144         }
 145         InstanceIdentifier<ElanInterface> elanInterfaceId = ElanUtils.getElanInterfaceConfigurationDataPathId(interfaceName);
 146         elanInterfaceManager.add(elanInterfaceId, elanInterface);
 147     }
 148
 149     @Override
 150     public void close() throws Exception {
 151
 152     }
 153
 154     public  InternalTunnel getTunnelState(String interfaceName) {
 155         InternalTunnel internalTunnel = null;
 156         TunnelList tunnelList = ElanUtils.buildInternalTunnel(broker);
 157         if (tunnelList.getInternalTunnel() != null) {
 158             List<InternalTunnel> internalTunnels = tunnelList.getInternalTunnel();
 159             for (InternalTunnel tunnel : internalTunnels) {
 160                 if (internalTunnel.getTunnelInterfaceName().equalsIgnoreCase(interfaceName)) {
 161                     internalTunnel = tunnel;
 162                     break;
 163                 }
 164             }
 165         }
 166         return internalTunnel;
 167     }
 168 }