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