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
   9 package org.opendaylight.bgpcep.config.loader.topology;
  10
  11 import static java.util.Objects.requireNonNull;
  12
  13 import java.util.Collection;
  14 import java.util.Map;
  15 import java.util.concurrent.ExecutionException;
  16 import javax.annotation.Nonnull;
  17 import org.opendaylight.bgpcep.config.loader.spi.ConfigFileProcessor;
  18 import org.opendaylight.bgpcep.config.loader.spi.ConfigLoader;
  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.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  26 import org.opendaylight.yangtools.concepts.AbstractRegistration;
  27 import org.opendaylight.yangtools.yang.binding.DataObject;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  31 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  33 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  34 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  35 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 public final class NetworkTopologyConfigFileProcessor implements ConfigFileProcessor, AutoCloseable {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(NetworkTopologyConfigFileProcessor.class);
  42
  43     private static final SchemaPath TOPOLOGY_SCHEMA_PATH = SchemaPath.create(true, NetworkTopology.QNAME);
  44     private final BindingNormalizedNodeSerializer bindingSerializer;
  45     private AbstractRegistration registration;
  46     private final YangInstanceIdentifier topologyYii;
  47     private static final InstanceIdentifier<Topology> TOPOLOGY_IID =
  48             InstanceIdentifier.create(NetworkTopology.class).child(Topology.class);
  49     private final DataBroker dataBroker;
  50     private final ConfigLoader configLoader;
  51
  52     public NetworkTopologyConfigFileProcessor(final ConfigLoader configLoader, final DataBroker dataBroker) {
  53         requireNonNull(configLoader);
  54         this.dataBroker = requireNonNull(dataBroker);
  55         this.configLoader = requireNonNull(configLoader);
  56         this.bindingSerializer = configLoader.getBindingNormalizedNodeSerializer();
  57         this.topologyYii = this.bindingSerializer.toYangInstanceIdentifier(TOPOLOGY_IID);
  58     }
  59
  60     public synchronized void init() {
  61         this.registration = this.configLoader.registerConfigFile(this);
  62         LOG.info("Network Topology Loader service initiated");
  63     }
  64
  65     @Override
  66     public synchronized void close() {
  67         if (this.registration != null) {
  68             this.registration.close();
  69             this.registration = null;
  70         }
  71     }
  72
  73     @Nonnull
  74     @Override
  75     public SchemaPath getSchemaPath() {
  76         return TOPOLOGY_SCHEMA_PATH;
  77     }
  78
  79     @Override
  80     public synchronized void loadConfiguration(final NormalizedNode<?, ?> dto) {
  81         final ContainerNode networkTopologyContainer = (ContainerNode) dto;
  82         final MapNode topologyList = (MapNode) networkTopologyContainer.getChild(
  83                 this.topologyYii.getLastPathArgument()).get();
  84         final Collection<MapEntryNode> networkTopology = topologyList.getValue();
  85         if (networkTopology.isEmpty()) {
  86             return;
  87         }
  88         final WriteTransaction wtx = this.dataBroker.newWriteOnlyTransaction();
  89
  90         for (final MapEntryNode topologyEntry : networkTopology) {
  91             final Map.Entry<InstanceIdentifier<?>, DataObject> bi =
  92                     this.bindingSerializer.fromNormalizedNode(this.topologyYii, topologyEntry);
  93             if (bi != null) {
  94                 processTopology((Topology) bi.getValue(), wtx);
  95             }
  96         }
  97         try {
  98             wtx.submit().get();
  99         } catch (final ExecutionException | InterruptedException e) {
 100             LOG.warn("Failed to create Network Topologies", e);
 101         }
 102     }
 103
 104     private static void processTopology(final Topology topology, final WriteTransaction wtx) {
 105         LOG.info("Storing Topology {}", topology);
 106         final KeyedInstanceIdentifier<Topology, TopologyKey> topologyIIdKeyed =
 107                 InstanceIdentifier.create(NetworkTopology.class).child(Topology.class, topology.getKey());
 108         wtx.merge(LogicalDatastoreType.CONFIGURATION, topologyIIdKeyed, topology, true);
 109     }
 110 }