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.impl.schema.Builders;
  35 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  36 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  37
  38 @Singleton
  39 public final class ProtocolsConfigFileProcessor extends AbstractConfigFileProcessor {
  40     private static final QName NAME = QName.create(NetworkInstance.QNAME, "name").intern();
  41
  42     // TODO: isn't there a better place where we can get this?
  43     @VisibleForTesting
  44     static final String GLOBAL_BGP_NAME = "global-bgp";
  45
  46     private static final @NonNull NodeIdentifierWithPredicates GLOBAL_BGP =
  47         NodeIdentifierWithPredicates.of(NetworkInstance.QNAME, NAME, GLOBAL_BGP_NAME);
  48     private static final @NonNull YangInstanceIdentifier GLOBAL_BGP_PATH = YangInstanceIdentifier.create(
  49         NodeIdentifier.create(NetworkInstances.QNAME), NodeIdentifier.create(NetworkInstance.QNAME), GLOBAL_BGP);
  50
  51     @Inject
  52     public ProtocolsConfigFileProcessor(final ConfigLoader configLoader, final DOMDataBroker dataBroker) {
  53         super("Protocols", configLoader, dataBroker);
  54     }
  55
  56     @PostConstruct
  57     public void init() {
  58         start();
  59     }
  60
  61     @PreDestroy
  62     @Override
  63     public void close() {
  64         stop();
  65     }
  66
  67     @Override
  68     public Absolute fileRootSchema() {
  69         return Absolute.of(NetworkInstances.QNAME, NetworkInstance.QNAME, Protocols.QNAME);
  70     }
  71
  72     @Override
  73     protected FluentFuture<? extends CommitInfo> loadConfiguration(final DOMDataBroker dataBroker,
  74             final NormalizedNode dto) {
  75         final ContainerNode protocolsContainer = (ContainerNode) dto;
  76         final MapNode protocols = (MapNode) protocolsContainer.childByArg(new NodeIdentifier(Protocol.QNAME));
  77         if (protocols == null) {
  78             return CommitInfo.emptyFluentFuture();
  79         }
  80
  81         final DOMDataTreeWriteTransaction wtx = dataBroker.newWriteOnlyTransaction();
  82
  83         // Ensure global-bgp exists
  84         wtx.merge(LogicalDatastoreType.CONFIGURATION, GLOBAL_BGP_PATH, Builders.mapEntryBuilder()
  85             .withNodeIdentifier(GLOBAL_BGP)
  86             .withChild(ImmutableNodes.leafNode(NAME, GLOBAL_BGP_NAME))
  87             .build());
  88         wtx.merge(LogicalDatastoreType.CONFIGURATION,
  89             GLOBAL_BGP_PATH.node(Protocols.QNAME).node(protocols.name()), protocols);
  90         return wtx.commit();
  91     }
  92 }