vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanInstanceManager.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.elan.internal;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import java.util.ArrayList;
  14 import java.util.List;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  19 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  20 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  21 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  22 import org.opendaylight.netvirt.elan.ElanException;
  23 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  24 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.etree.rev160614.EtreeInstance;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanDpnInterfaces;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInstances;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.dpn.interfaces.ElanDpnInterfacesList;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.dpn.interfaces.ElanDpnInterfacesListKey;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.dpn.interfaces.elan.dpn.interfaces.list.DpnInterfaces;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstanceKey;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.state.Elan;
  36 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 public class ElanInstanceManager extends AsyncDataTreeChangeListenerBase<ElanInstance, ElanInstanceManager>
  41         implements AutoCloseable {
  42
  43     private static final Logger LOG = LoggerFactory.getLogger(ElanInstanceManager.class);
  44
  45     private final DataBroker broker;
  46     private final IdManagerService idManager;
  47     private final IInterfaceManager interfaceManager;
  48     private final ElanInterfaceManager elanInterfaceManager;
  49
  50     public ElanInstanceManager(final DataBroker dataBroker, final IdManagerService managerService,
  51                                final ElanInterfaceManager elanInterfaceManager,
  52                                final IInterfaceManager interfaceManager) {
  53         super(ElanInstance.class, ElanInstanceManager.class);
  54         this.broker = dataBroker;
  55         this.idManager = managerService;
  56         this.elanInterfaceManager = elanInterfaceManager;
  57         this.interfaceManager = interfaceManager;
  58     }
  59
  60     public void init() {
  61         registerListener(LogicalDatastoreType.CONFIGURATION, broker);
  62     }
  63
  64     @Override
  65     protected void remove(InstanceIdentifier<ElanInstance> identifier, ElanInstance deletedElan) {
  66         LOG.trace("Remove ElanInstance - Key: {}, value: {}", identifier, deletedElan);
  67         List<ListenableFuture<Void>> futures = new ArrayList<>();
  68         String elanName = deletedElan.getElanInstanceName();
  69         // check the elan Instance present in the Operational DataStore
  70         Elan existingElan = ElanUtils.getElanByName(broker, elanName);
  71         long elanTag = deletedElan.getElanTag();
  72         // Cleaning up the existing Elan Instance
  73         if (existingElan != null) {
  74             List<String> elanInterfaces = existingElan.getElanInterfaces();
  75             if (elanInterfaces != null && !elanInterfaces.isEmpty()) {
  76                 for (String elanInterfaceName : elanInterfaces) {
  77                     InstanceIdentifier<ElanInterface> elanInterfaceId = ElanUtils
  78                             .getElanInterfaceConfigurationDataPathId(elanInterfaceName);
  79                     InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(elanInterfaceName);
  80                     elanInterfaceManager.removeElanInterface(futures, deletedElan, elanInterfaceName,
  81                             interfaceInfo, false);
  82                     ElanUtils.delete(broker, LogicalDatastoreType.CONFIGURATION,
  83                             elanInterfaceId);
  84                 }
  85             }
  86             ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL,
  87                     ElanUtils.getElanInstanceOperationalDataPath(elanName));
  88             Optional<ElanDpnInterfacesList> elanDpnInterfaceList = MDSALUtil.read(broker,
  89                     LogicalDatastoreType.OPERATIONAL,
  90                     ElanUtils.getElanDpnOperationDataPath(elanName));
  91             if (elanDpnInterfaceList.isPresent()) {
  92                 ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL,
  93                     getElanDpnOperationDataPath(elanName));
  94             }
  95             ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL,
  96                     ElanUtils.getElanInfoEntriesOperationalDataPath(elanTag));
  97         }
  98         // Release tag
  99         ElanUtils.releaseId(idManager, ElanConstants.ELAN_ID_POOL_NAME, elanName);
 100         if (deletedElan.getAugmentation(EtreeInstance.class) != null) {
 101             removeEtreeInstance(deletedElan);
 102         }
 103     }
 104
 105     private void removeEtreeInstance(ElanInstance deletedElan) {
 106         // Release leaves tag
 107         ElanUtils.releaseId(idManager, ElanConstants.ELAN_ID_POOL_NAME,
 108                 deletedElan.getElanInstanceName() + ElanConstants.LEAVES_POSTFIX);
 109
 110         ElanUtils.delete(broker, LogicalDatastoreType.OPERATIONAL,
 111                 ElanUtils.getElanInfoEntriesOperationalDataPath(
 112                 deletedElan.getAugmentation(EtreeInstance.class).getEtreeLeafTagVal().getValue()));
 113     }
 114
 115     @Override
 116     protected void update(InstanceIdentifier<ElanInstance> identifier, ElanInstance original, ElanInstance update) {
 117         Long existingElanTag = original.getElanTag();
 118         if (existingElanTag != null && existingElanTag == update.getElanTag()) {
 119             return;
 120         } else if (update.getElanTag() == null) {
 121             // update the elan-Instance with new properties
 122             WriteTransaction tx = broker.newWriteOnlyTransaction();
 123             ElanUtils.updateOperationalDataStore(broker, idManager,
 124                     update, new ArrayList<String>(), tx);
 125             ElanUtils.waitForTransactionToComplete(tx);
 126             return;
 127         }
 128         try {
 129             elanInterfaceManager.handleunprocessedElanInterfaces(update);
 130         } catch (ElanException e) {
 131             LOG.error("update() failed for ElanInstance: " + identifier.toString(), e);
 132         }
 133     }
 134
 135     @Override
 136     protected void add(InstanceIdentifier<ElanInstance> identifier, ElanInstance elanInstanceAdded) {
 137         String elanInstanceName  = elanInstanceAdded.getElanInstanceName();
 138         Elan elanInfo = ElanUtils.getElanByName(broker, elanInstanceName);
 139         if (elanInfo == null) {
 140             WriteTransaction tx = broker.newWriteOnlyTransaction();
 141             ElanUtils.updateOperationalDataStore(broker, idManager,
 142                 elanInstanceAdded, new ArrayList<String>(), tx);
 143             ElanUtils.waitForTransactionToComplete(tx);
 144         }
 145     }
 146
 147     public ElanInstance getElanInstanceByName(String elanInstanceName) {
 148         InstanceIdentifier<ElanInstance> elanIdentifierId = getElanInstanceConfigurationDataPath(elanInstanceName);
 149         Optional<ElanInstance> elanInstance = MDSALUtil.read(broker,
 150                 LogicalDatastoreType.CONFIGURATION, elanIdentifierId);
 151         if (elanInstance.isPresent()) {
 152             return elanInstance.get();
 153         }
 154         return null;
 155     }
 156
 157     public List<DpnInterfaces> getElanDPNByName(String elanInstanceName) {
 158         InstanceIdentifier<ElanDpnInterfacesList> elanIdentifier = getElanDpnOperationDataPath(elanInstanceName);
 159         Optional<ElanDpnInterfacesList> elanInstance = MDSALUtil.read(broker,
 160                 LogicalDatastoreType.OPERATIONAL, elanIdentifier);
 161         if (elanInstance.isPresent()) {
 162             ElanDpnInterfacesList elanDPNs = elanInstance.get();
 163             return elanDPNs.getDpnInterfaces();
 164         }
 165         return null;
 166     }
 167
 168     private InstanceIdentifier<ElanDpnInterfacesList> getElanDpnOperationDataPath(String elanInstanceName) {
 169         return InstanceIdentifier.builder(ElanDpnInterfaces.class)
 170                 .child(ElanDpnInterfacesList.class, new ElanDpnInterfacesListKey(elanInstanceName)).build();
 171     }
 172
 173     private InstanceIdentifier<ElanInstance> getElanInstanceConfigurationDataPath(String elanInstanceName) {
 174         return InstanceIdentifier.builder(ElanInstances.class)
 175                 .child(ElanInstance.class, new ElanInstanceKey(elanInstanceName)).build();
 176     }
 177
 178     @Override
 179     protected InstanceIdentifier<ElanInstance> getWildCardPath() {
 180         return InstanceIdentifier.create(ElanInstances.class).child(ElanInstance.class);
 181     }
 182
 183     @Override
 184     protected ElanInstanceManager getDataTreeChangeListener() {
 185         return this;
 186     }
 187 }