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