bmp/bmp-impl/src/main/java/org/opendaylight/protocol/bmp/impl/app/TableContext.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
   9 package org.opendaylight.protocol.bmp.impl.app;
  10
  11 import static java.util.Objects.requireNonNull;
  12 import static org.opendaylight.protocol.bmp.impl.app.TablesUtil.BMP_ATTRIBUTES_QNAME;
  13 import static org.opendaylight.protocol.bmp.impl.app.TablesUtil.BMP_ROUTES_QNAME;
  14
  15 import com.google.common.base.Preconditions;
  16 import java.util.Map;
  17 import javax.annotation.concurrent.NotThreadSafe;
  18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  20 import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTree;
  21 import org.opendaylight.mdsal.binding.dom.codec.api.BindingCodecTreeNode;
  22 import org.opendaylight.mdsal.binding.dom.codec.api.BindingDataObjectCodecTreeNode;
  23 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeCachingCodec;
  24 import org.opendaylight.protocol.bgp.rib.spi.RIBSupport;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.Update;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.AttributesBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes1;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes2;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlri;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpUnreachNlri;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  34 import org.opendaylight.yangtools.yang.common.QName;
  35 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  36 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  37 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  38 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  39 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  40 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  41 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
  42 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableChoiceNodeBuilder;
  43
  44 @NotThreadSafe
  45 final class TableContext {
  46
  47     private static final ContainerNode EMPTY_TABLE_ATTRIBUTES = ImmutableNodes.containerNode(BMP_ATTRIBUTES_QNAME);
  48
  49     private static final InstanceIdentifier<MpReachNlri> MP_REACH_NLRI_II = InstanceIdentifier.create(Update.class)
  50             .child(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path
  51                     .attributes.Attributes.class).augmentation(Attributes1.class).child(MpReachNlri.class);
  52     private static final InstanceIdentifier<MpUnreachNlri> MP_UNREACH_NLRI_II = InstanceIdentifier.create(Update.class)
  53             .child(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path
  54                     .attributes.Attributes.class).augmentation(Attributes2.class).child(MpUnreachNlri.class);
  55     private static final NodeIdentifier BGP_ROUTES_NODE_ID = new NodeIdentifier(BMP_ROUTES_QNAME);
  56
  57     private final YangInstanceIdentifier tableId;
  58     private final RIBSupport tableSupport;
  59     private final BindingNormalizedNodeCachingCodec<Attributes> attributesCodec;
  60     private final BindingNormalizedNodeCachingCodec<MpReachNlri> reachNlriCodec;
  61     private final BindingNormalizedNodeCachingCodec<MpUnreachNlri> unreachNlriCodec;
  62
  63     @SuppressWarnings({ "unchecked", "rawtypes" })
  64     TableContext(final RIBSupport tableSupport, final YangInstanceIdentifier tableId, final BindingCodecTree tree) {
  65         this.tableSupport = requireNonNull(tableSupport);
  66         this.tableId = requireNonNull(tableId);
  67         final BindingCodecTreeNode tableCodecContext = tree.getSubtreeCodec(tableId);
  68         Preconditions.checkState(tableCodecContext instanceof BindingDataObjectCodecTreeNode);
  69         final BindingDataObjectCodecTreeNode<?> routeListCodec = ((BindingDataObjectCodecTreeNode)tableCodecContext)
  70             .streamChild(Routes.class)
  71             .streamChild(this.tableSupport.routesCaseClass())
  72             .streamChild(this.tableSupport.routesContainerClass())
  73             .streamChild(this.tableSupport.routesListClass());
  74
  75         this.attributesCodec = routeListCodec.streamChild(Attributes.class)
  76                 .createCachingCodec(this.tableSupport.cacheableAttributeObjects());
  77         this.reachNlriCodec = tree.getSubtreeCodec(MP_REACH_NLRI_II)
  78                 .createCachingCodec(this.tableSupport.cacheableNlriObjects());
  79         this.unreachNlriCodec = tree.getSubtreeCodec(MP_UNREACH_NLRI_II)
  80                 .createCachingCodec(this.tableSupport.cacheableNlriObjects());
  81     }
  82
  83     YangInstanceIdentifier getTableId() {
  84         return this.tableId;
  85     }
  86
  87     void createTable(final DOMDataWriteTransaction tx) {
  88         final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> tb =
  89                 ImmutableNodes.mapEntryBuilder();
  90         tb.withNodeIdentifier((NodeIdentifierWithPredicates) this.tableId.getLastPathArgument());
  91         tb.withChild(EMPTY_TABLE_ATTRIBUTES);
  92
  93         // tableId is keyed, but that fact is not directly visible from YangInstanceIdentifier, see BUG-2796
  94         final NodeIdentifierWithPredicates tableKey =
  95                 (NodeIdentifierWithPredicates) this.tableId.getLastPathArgument();
  96         for (final Map.Entry<QName, Object> e : tableKey.getKeyValues().entrySet()) {
  97             tb.withChild(ImmutableNodes.leafNode(e.getKey(), e.getValue()));
  98         }
  99
 100         tx.put(LogicalDatastoreType.OPERATIONAL, this.tableId,
 101                 tb.withChild(ImmutableChoiceNodeBuilder.create().withNodeIdentifier(
 102                         new NodeIdentifier(TablesUtil.BMP_ROUTES_QNAME)).build()).build());
 103     }
 104
 105     void writeRoutes(final DOMDataWriteTransaction tx, final MpReachNlri nlri, final Attributes attributes) {
 106         final ContainerNode domNlri = serializeReachNlri(nlri);
 107         final ContainerNode routeAttributes = serializeAttributes(attributes);
 108         this.tableSupport.putRoutes(tx, this.tableId, domNlri, routeAttributes, BGP_ROUTES_NODE_ID);
 109     }
 110
 111     void removeRoutes(final DOMDataWriteTransaction tx, final MpUnreachNlri nlri) {
 112         this.tableSupport.deleteRoutes(tx, this.tableId, serializeUnreachNlri(nlri), BGP_ROUTES_NODE_ID);
 113     }
 114
 115     private ContainerNode serializeUnreachNlri(final MpUnreachNlri nlri) {
 116         Preconditions.checkState(this.unreachNlriCodec != null, "MpUnReachNlri codec not available");
 117         return (ContainerNode) this.unreachNlriCodec.serialize(nlri);
 118     }
 119
 120     private ContainerNode serializeReachNlri(final MpReachNlri nlri) {
 121         Preconditions.checkState(this.reachNlriCodec != null, "MpReachNlri codec not available");
 122         return (ContainerNode) this.reachNlriCodec.serialize(nlri);
 123     }
 124
 125     private ContainerNode serializeAttributes(final Attributes pathAttr) {
 126         Preconditions.checkState(this.attributesCodec != null, "Attributes codec not available");
 127         final AttributesBuilder a = new AttributesBuilder(pathAttr);
 128         a.addAugmentation(Attributes1.class, null);
 129         a.addAugmentation(Attributes2.class, null);
 130         return (ContainerNode) this.attributesCodec.serialize(a.build());
 131     }
 132 }