hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/transact/HwvtepOperationalState.java

   1 /*
   2  * Copyright (c) 2015 China Telecom Beijing Research Institute 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.ovsdb.hwvtepsouthbound.transact;
  10
  11 import java.util.Collection;
  12 import java.util.HashMap;
  13 import java.util.Map;
  14 import java.util.Map.Entry;
  15 import java.util.concurrent.ExecutionException;
  16
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  19 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  21 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
  22 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  23 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalLocatorAugmentation;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalPortAugmentation;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LogicalSwitches;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.physical.locator.set.attributes.LocatorSet;
  30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36 import com.google.common.base.Optional;
  37 import com.google.common.util.concurrent.CheckedFuture;
  38
  39 public class HwvtepOperationalState {
  40     private static final Logger LOG = LoggerFactory.getLogger(HwvtepOperationalState.class);
  41     private Map<InstanceIdentifier<Node>, Node> operationalNodes = new HashMap<>();
  42
  43     public HwvtepOperationalState(DataBroker db, Collection<DataTreeModification<Node>> changes) {
  44         ReadOnlyTransaction transaction = db.newReadOnlyTransaction();
  45         Map<InstanceIdentifier<Node>, Node> nodeCreateOrUpdate =
  46             extractCreatedOrUpdatedOrRemoved(changes, Node.class);
  47             //TransactUtils.extractCreatedOrUpdatedOrRemoved(changes, Node.class);
  48         if (nodeCreateOrUpdate != null) {
  49             for (Entry<InstanceIdentifier<Node>, Node> entry: nodeCreateOrUpdate.entrySet()) {
  50                 CheckedFuture<Optional<Node>, ReadFailedException> nodeFuture =
  51                         transaction.read(LogicalDatastoreType.OPERATIONAL, entry.getKey());
  52                 try {
  53                     Optional<Node> nodeOptional = nodeFuture.get();
  54                     if (nodeOptional.isPresent()) {
  55                         operationalNodes.put(entry.getKey(), nodeOptional.get());
  56                     }
  57                 } catch (InterruptedException | ExecutionException e) {
  58                     LOG.warn("Error reading from datastore",e);
  59                 }
  60             }
  61         }
  62         transaction.close();
  63     }
  64
  65     private Node getCreated(DataObjectModification<Node> mod) {
  66         if((mod.getModificationType() == ModificationType.WRITE)
  67                         && (mod.getDataBefore() == null)){
  68             return mod.getDataAfter();
  69         }
  70         return null;
  71     }
  72
  73     private Node getRemoved(DataObjectModification<Node> mod) {
  74         if(mod.getModificationType() == ModificationType.DELETE){
  75             return mod.getDataBefore();
  76         }
  77         return null;
  78     }
  79
  80     private Node getUpdated(DataObjectModification<Node> mod) {
  81         Node node = null;
  82         switch(mod.getModificationType()) {
  83             case SUBTREE_MODIFIED:
  84                 node = mod.getDataAfter();
  85                 break;
  86             case WRITE:
  87                 if(mod.getDataBefore() !=  null) {
  88                     node = mod.getDataAfter();
  89                 }
  90                 break;
  91             default:
  92                 break;
  93         }
  94         return node;
  95     }
  96
  97     private Node getOriginal(DataObjectModification<Node> mod) {
  98         Node node = null;
  99         switch(mod.getModificationType()) {
 100             case SUBTREE_MODIFIED:
 101                 node = mod.getDataBefore();
 102                 break;
 103             case WRITE:
 104                 if(mod.getDataBefore() !=  null) {
 105                     node = mod.getDataBefore();
 106                 }
 107                 break;
 108             case DELETE:
 109                 node = mod.getDataBefore();
 110                 break;
 111             default:
 112                 break;
 113         }
 114         return node;
 115     }
 116
 117     private Map<InstanceIdentifier<Node>, Node> extractCreatedOrUpdatedOrRemoved(
 118             Collection<DataTreeModification<Node>> changes, Class<Node> class1) {
 119         // TODO Auto-generated method stub
 120         Map<InstanceIdentifier<Node>, Node> result = new HashMap<InstanceIdentifier<Node>, Node>();
 121         for (DataTreeModification<Node> change : changes) {
 122             final InstanceIdentifier<Node> key = change.getRootPath().getRootIdentifier();
 123             final DataObjectModification<Node> mod = change.getRootNode();
 124             Node created = getCreated(mod);
 125             result.put(key, created);
 126             Node updated = getUpdated(mod);
 127             result.put(key, updated);
 128             Node deleted = getRemoved(mod);
 129             result.put(key, deleted);
 130         }
 131         return result;
 132     }
 133
 134     public Optional<Node> getGlobalNode(InstanceIdentifier<?> iid) {
 135         InstanceIdentifier<Node> nodeIid = iid.firstIdentifierOf(Node.class);
 136         return Optional.fromNullable(operationalNodes.get(nodeIid));
 137     }
 138
 139     public Optional<LogicalSwitches> getLogicalSwitches(InstanceIdentifier<?> iid) {
 140         Optional<Node> nodeOptional = getGlobalNode(iid);
 141         /*if (nodeOptional.isPresent()) {
 142             return Optional.fromNullable(nodeOptional.get().getAugmentation(HwvtepLogicalSwitchAugmentation.class));
 143         }*/
 144         return Optional.absent();
 145     }
 146
 147     public Optional<PhysicalSwitchAugmentation> getPhysicalSwitchAugmentation(InstanceIdentifier<?> iid) {
 148         Optional<Node> nodeOptional = getGlobalNode(iid);
 149         if (nodeOptional.isPresent()) {
 150             return Optional.fromNullable(nodeOptional.get().getAugmentation(PhysicalSwitchAugmentation.class));
 151         }
 152         return Optional.absent();
 153     }
 154
 155     public Optional<LocatorSet> getPhysicalLocatorSet(InstanceIdentifier<?> iid) {
 156         Optional<Node> nodeOptional = getGlobalNode(iid);
 157         /*if (nodeOptional.isPresent()) {
 158             return Optional.fromNullable(nodeOptional.get().getAugmentation(HwvtepGlobalAugmentation.class).getLogicalSwitches());
 159         }*/
 160         return Optional.absent();
 161     }
 162
 163     public Optional<TerminationPoint> getHwvtepTerminationPoint(InstanceIdentifier<?> iid) {
 164         if (iid != null) {
 165             Optional<Node> nodeOptional = getGlobalNode(iid);
 166             if (nodeOptional.isPresent() && nodeOptional.get().getTerminationPoint() != null) {
 167                 TerminationPointKey key = iid.firstKeyOf(TerminationPoint.class, TerminationPointKey.class);
 168                 if (key != null) {
 169                     for (TerminationPoint tp:nodeOptional.get().getTerminationPoint()) {
 170                         if (tp.getKey().equals(key)) {
 171                             return Optional.of(tp);
 172                         }
 173                     }
 174                 }
 175             }
 176         }
 177         return Optional.absent();
 178     }
 179
 180     public Optional<HwvtepPhysicalLocatorAugmentation> getPhysicalLocatorAugmentation(InstanceIdentifier<?> iid) {
 181         Optional<TerminationPoint> nodeOptional = getHwvtepTerminationPoint(iid);
 182         if (nodeOptional.isPresent()) {
 183             return Optional.fromNullable(nodeOptional.get().getAugmentation(HwvtepPhysicalLocatorAugmentation.class));
 184         }
 185         return Optional.absent();
 186     }
 187
 188     public Optional<HwvtepPhysicalPortAugmentation> getPhysycalPortAugmentation(InstanceIdentifier<?> iid) {
 189         Optional<TerminationPoint> tpOptional = getHwvtepTerminationPoint(iid);
 190         if (tpOptional.isPresent()) {
 191             return Optional.fromNullable(tpOptional.get().getAugmentation(HwvtepPhysicalPortAugmentation.class));
 192         }
 193         return Optional.absent();
 194     }
 195 }