bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/RIBSupportContextImpl.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. 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 package org.opendaylight.protocol.bgp.rib.impl;
   9
  10 import com.google.common.base.Preconditions;
  11 import com.google.common.base.Verify;
  12 import java.util.Map.Entry;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  15 import org.opendaylight.protocol.bgp.rib.impl.spi.CodecsRegistry;
  16 import org.opendaylight.protocol.bgp.rib.impl.spi.RIBSupportContext;
  17 import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlri;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.Routes;
  22 import org.opendaylight.yangtools.yang.common.QName;
  23 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  24 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  25 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
  26 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  27 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  28 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  29 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
  30
  31 class RIBSupportContextImpl extends RIBSupportContext {
  32
  33     private static final ContainerNode EMPTY_TABLE_ATTRIBUTES = ImmutableNodes.containerNode(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.Attributes.QNAME);
  34
  35     private final RIBSupport ribSupport;
  36     private final Codecs codecs;
  37
  38     public RIBSupportContextImpl(final RIBSupport ribSupport, final CodecsRegistry codecs) {
  39         this.ribSupport = Preconditions.checkNotNull(ribSupport);
  40         this.codecs = codecs.getCodecs(this.ribSupport);
  41     }
  42
  43     @Override
  44     public void writeRoutes(final DOMDataWriteTransaction tx, final YangInstanceIdentifier tableId, final MpReachNlri nlri,
  45             final Attributes attributes) {
  46         final ContainerNode domNlri = this.codecs.serializeReachNlri(nlri);
  47         final ContainerNode routeAttributes = this.codecs.serializeAttributes(attributes);
  48         this.ribSupport.putRoutes(tx, tableId, domNlri, routeAttributes);
  49     }
  50
  51     @Override
  52     public void clearTable(final DOMDataWriteTransaction tx, final YangInstanceIdentifier tableId) {
  53         final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> tb = ImmutableNodes.mapEntryBuilder();
  54         tb.withNodeIdentifier((NodeIdentifierWithPredicates)tableId.getLastPathArgument());
  55         tb.withChild(EMPTY_TABLE_ATTRIBUTES);
  56
  57         // tableId is keyed, but that fact is not directly visible from YangInstanceIdentifier, see BUG-2796
  58         final NodeIdentifierWithPredicates tableKey = (NodeIdentifierWithPredicates) tableId.getLastPathArgument();
  59         for (final Entry<QName, Object> e : tableKey.getKeyValues().entrySet()) {
  60             tb.withChild(ImmutableNodes.leafNode(e.getKey(), e.getValue()));
  61         }
  62
  63         final ChoiceNode routes = this.ribSupport.emptyRoutes();
  64         Verify.verifyNotNull(routes, "Null empty routes in %s", this.ribSupport);
  65         Verify.verify(Routes.QNAME.equals(routes.getNodeType()), "Empty routes have unexpected identifier %s, expected %s", routes.getNodeType(), Routes.QNAME);
  66
  67         tx.put(LogicalDatastoreType.OPERATIONAL, tableId, tb.withChild(routes).build());
  68     }
  69
  70     @Override
  71     public void deleteRoutes(final DOMDataWriteTransaction tx, final YangInstanceIdentifier tableId, final MpUnreachNlri nlri) {
  72         this.ribSupport.deleteRoutes(tx, tableId, this.codecs.serializeUnreachNlri(nlri));
  73     }
  74
  75     @Override
  76     public RIBSupport getRibSupport() {
  77         return this.ribSupport;
  78     }
  79 }