config-loader/protocols-config-loader/src/main/java/org/opendaylight/bgpcep/config/loader/protocols/ProtocolsConfigFileProcessor.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.protocols;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import com.google.common.util.concurrent.FluentFuture;
  12 import javax.annotation.PostConstruct;
  13 import javax.annotation.PreDestroy;
  14 import javax.inject.Inject;
  15 import javax.inject.Singleton;
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.opendaylight.bgpcep.config.loader.spi.AbstractConfigFileProcessor;
  18 import org.opendaylight.bgpcep.config.loader.spi.ConfigLoader;
  19 import org.opendaylight.mdsal.common.api.CommitInfo;
  20 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  21 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  22 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
  23 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.NetworkInstances;
  24 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.NetworkInstance;
  25 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.network.instance.Protocols;
  26 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.network.instance.rev151018.network.instance.top.network.instances.network.instance.protocols.Protocol;
  27 import org.opendaylight.yangtools.yang.common.QName;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  31 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  33 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  34 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
  35 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  36
  37 @Singleton
  38 public final class ProtocolsConfigFileProcessor extends AbstractConfigFileProcessor {
  39     private static final QName NAME = QName.create(NetworkInstance.QNAME, "name").intern();
  40
  41     // TODO: isn't there a better place where we can get this?
  42     @VisibleForTesting
  43     static final String GLOBAL_BGP_NAME = "global-bgp";
  44
  45     private static final @NonNull NodeIdentifierWithPredicates GLOBAL_BGP =
  46         NodeIdentifierWithPredicates.of(NetworkInstance.QNAME, NAME, GLOBAL_BGP_NAME);
  47     private static final @NonNull YangInstanceIdentifier GLOBAL_BGP_PATH = YangInstanceIdentifier.of(
  48         NodeIdentifier.create(NetworkInstances.QNAME), NodeIdentifier.create(NetworkInstance.QNAME), GLOBAL_BGP);
  49
  50     @Inject
  51     public ProtocolsConfigFileProcessor(final ConfigLoader configLoader, final DOMDataBroker dataBroker) {
  52         super("Protocols", configLoader, dataBroker);
  53     }
  54
  55     @PostConstruct
  56     public void init() {
  57         start();
  58     }
  59
  60     @PreDestroy
  61     @Override
  62     public void close() {
  63         stop();
  64     }
  65
  66     @Override
  67     public Absolute fileRootSchema() {
  68         return Absolute.of(NetworkInstances.QNAME, NetworkInstance.QNAME, Protocols.QNAME);
  69     }
  70
  71     @Override
  72     protected FluentFuture<? extends CommitInfo> loadConfiguration(final DOMDataBroker dataBroker,
  73             final NormalizedNode dto) {
  74         final ContainerNode protocolsContainer = (ContainerNode) dto;
  75         final MapNode protocols = (MapNode) protocolsContainer.childByArg(new NodeIdentifier(Protocol.QNAME));
  76         if (protocols == null) {
  77             return CommitInfo.emptyFluentFuture();
  78         }
  79
  80         final DOMDataTreeWriteTransaction wtx = dataBroker.newWriteOnlyTransaction();
  81
  82         // Ensure global-bgp exists
  83         wtx.merge(LogicalDatastoreType.CONFIGURATION, GLOBAL_BGP_PATH, ImmutableNodes.newMapEntryBuilder()
  84             .withNodeIdentifier(GLOBAL_BGP)
  85             .withChild(ImmutableNodes.leafNode(NAME, GLOBAL_BGP_NAME))
  86             .build());
  87         wtx.merge(LogicalDatastoreType.CONFIGURATION,
  88             GLOBAL_BGP_PATH.node(Protocols.QNAME).node(protocols.name()), protocols);
  89         return wtx.commit();
  90     }
  91 }