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