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