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