config-loader/topology-config-loader/src/main/java/org/opendaylight/bgpcep/config/loader/topology/NetworkTopologyConfigFileProcessor.java

   1 /*
   2  * Copyright (c) 2017 AT&T Intellectual Property. 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 package org.opendaylight.bgpcep.config.loader.topology;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import java.util.Collection;
  13 import java.util.Map;
  14 import java.util.concurrent.ExecutionException;
  15 import org.opendaylight.bgpcep.config.loader.spi.ConfigFileProcessor;
  16 import org.opendaylight.bgpcep.config.loader.spi.ConfigLoader;
  17 import org.opendaylight.mdsal.binding.api.DataBroker;
  18 import org.opendaylight.mdsal.binding.api.WriteTransaction;
  19 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  20 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  24 import org.opendaylight.yangtools.concepts.AbstractRegistration;
  25 import org.opendaylight.yangtools.yang.binding.DataObject;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  30 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  31 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  33 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 public final class NetworkTopologyConfigFileProcessor implements ConfigFileProcessor, AutoCloseable {
  38
  39     private static final Logger LOG = LoggerFactory.getLogger(NetworkTopologyConfigFileProcessor.class);
  40
  41     private static final SchemaPath TOPOLOGY_SCHEMA_PATH = SchemaPath.create(true, NetworkTopology.QNAME);
  42     private final BindingNormalizedNodeSerializer bindingSerializer;
  43     private AbstractRegistration registration;
  44     private final YangInstanceIdentifier topologyYii;
  45     private static final InstanceIdentifier<Topology> TOPOLOGY_IID =
  46             InstanceIdentifier.create(NetworkTopology.class).child(Topology.class);
  47     private final DataBroker dataBroker;
  48     private final ConfigLoader configLoader;
  49
  50     public NetworkTopologyConfigFileProcessor(final ConfigLoader configLoader, final DataBroker dataBroker) {
  51         requireNonNull(configLoader);
  52         this.dataBroker = requireNonNull(dataBroker);
  53         this.configLoader = requireNonNull(configLoader);
  54         this.bindingSerializer = configLoader.getBindingNormalizedNodeSerializer();
  55         this.topologyYii = this.bindingSerializer.toYangInstanceIdentifier(TOPOLOGY_IID);
  56     }
  57
  58     public synchronized void init() {
  59         this.registration = this.configLoader.registerConfigFile(this);
  60         LOG.info("Network Topology Loader service initiated");
  61     }
  62
  63     @Override
  64     public synchronized void close() {
  65         if (this.registration != null) {
  66             this.registration.close();
  67             this.registration = null;
  68         }
  69     }
  70
  71     @Override
  72     public SchemaPath getSchemaPath() {
  73         return TOPOLOGY_SCHEMA_PATH;
  74     }
  75
  76     @Override
  77     public synchronized void loadConfiguration(final NormalizedNode<?, ?> dto) {
  78         final ContainerNode networkTopologyContainer = (ContainerNode) dto;
  79         final MapNode topologyList = (MapNode) networkTopologyContainer.getChild(
  80                 this.topologyYii.getLastPathArgument()).get();
  81         final Collection<MapEntryNode> networkTopology = topologyList.getValue();
  82         if (networkTopology.isEmpty()) {
  83             return;
  84         }
  85         final WriteTransaction wtx = this.dataBroker.newWriteOnlyTransaction();
  86
  87         for (final MapEntryNode topologyEntry : networkTopology) {
  88             final Map.Entry<InstanceIdentifier<?>, DataObject> bi =
  89                     this.bindingSerializer.fromNormalizedNode(this.topologyYii, topologyEntry);
  90             if (bi != null) {
  91                 processTopology((Topology) bi.getValue(), wtx);
  92             }
  93         }
  94         try {
  95             wtx.commit().get();
  96         } catch (final ExecutionException | InterruptedException e) {
  97             LOG.warn("Failed to create Network Topologies", e);
  98         }
  99     }
 100
 101     private static void processTopology(final Topology topology, final WriteTransaction wtx) {
 102         LOG.info("Storing Topology {}", topology);
 103         final KeyedInstanceIdentifier<Topology, TopologyKey> topologyIIdKeyed =
 104                 InstanceIdentifier.create(NetworkTopology.class).child(Topology.class, topology.key());
 105         wtx.merge(LogicalDatastoreType.CONFIGURATION, topologyIIdKeyed, topology, true);
 106     }
 107 }