org.opendaylight.bgpcep.bgp.topology.provider.ProtocolUtil Maven / Gradle / Ivy
/*
* Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.bgpcep.bgp.topology.provider;
import com.google.common.collect.ImmutableSet;
import com.google.common.io.BaseEncoding;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.IsisAreaIdentifier;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.NodeFlagBits;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.NodeIdentifier;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.TopologyIdentifier;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.object.type.link._case.LinkDescriptors;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.path.attribute.link.state.attribute.link.attributes._case.LinkAttributes;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.path.attribute.link.state.attribute.node.attributes._case.NodeAttributes;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.path.attribute.link.state.attribute.prefix.attributes._case.PrefixAttributes;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.routes.linkstate.routes.LinkstateRoute;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.CRouterIdentifier;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.c.router.identifier.IsisNodeCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.c.router.identifier.IsisPseudonodeCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.c.router.identifier.OspfNodeCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.c.router.identifier.OspfPseudonodeCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.c.router.identifier.isis.node._case.IsisNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.c.router.identifier.isis.pseudonode._case.IsisPseudonode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.identifier.c.router.identifier.ospf.pseudonode._case.OspfPseudonode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.IsoNetId;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.IsoPseudonodeId;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.IsoSystemId;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.isis.link.attributes.IsisLinkAttributesBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.isis.node.attributes.IsisNodeAttributesBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.isis.node.attributes.isis.node.attributes.IsoBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.ted.rev131021.srlg.attributes.SrlgValuesBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.ted.rev131021.ted.link.attributes.SrlgBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.ted.rev131021.ted.link.attributes.UnreservedBandwidth;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.ted.rev131021.ted.link.attributes.UnreservedBandwidthBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.ted.rev131021.ted.link.attributes.UnreservedBandwidthKey;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.link.attributes.IgpLinkAttributesBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.IgpNodeAttributesBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.igp.node.attributes.PrefixBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.Prefix1Builder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.link.attributes.OspfLinkAttributesBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.node.attributes.OspfNodeAttributesBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.node.attributes.ospf.node.attributes.router.type.AbrBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.node.attributes.ospf.node.attributes.router.type.InternalBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.node.attributes.ospf.node.attributes.router.type.PseudonodeBuilder;
import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.prefix.attributes.OspfPrefixAttributesBuilder;
import org.opendaylight.yangtools.yang.binding.util.BindingMap;
import org.opendaylight.yangtools.yang.common.Decimal64;
import org.opendaylight.yangtools.yang.common.Empty;
import org.opendaylight.yangtools.yang.common.Uint8;
public final class ProtocolUtil {
private static final Decimal64 MIN_BANDWIDTH = Decimal64.minValueIn(2);
private static final float MIN_BANDWIDTH_FLT = MIN_BANDWIDTH.floatValue();
private static final Decimal64 MAX_BANDWIDTH = Decimal64.maxValueIn(2);
private static final float MAX_BANDWIDTH_FLT = MAX_BANDWIDTH.floatValue();
private ProtocolUtil() {
// Hidden on purpose
}
public static void augmentProtocolId(final LinkstateRoute value, final PrefixAttributes pa,
final PrefixBuilder pb) {
switch (value.getProtocolId()) {
case Direct:
case IsisLevel1:
case IsisLevel2:
case Static:
case Ospf:
if (pa != null && pa.getOspfForwardingAddress() != null) {
pb.addAugmentation(new Prefix1Builder().setOspfPrefixAttributes(
new OspfPrefixAttributesBuilder().setForwardingAddress(pa.getOspfForwardingAddress()
.getIpv4AddressNoZone()).build()).build());
}
break;
default:
break;
}
}
public static void augmentProtocolId(final LinkstateRoute value, final IgpNodeAttributesBuilder inab,
final NodeAttributes na, final NodeIdentifier nd) {
switch (value.getProtocolId()) {
case Direct:
case Static:
case IsisLevel1:
case IsisLevel2:
inab.addAugmentation(isisNodeAttributes(nd, na));
break;
case Ospf:
inab.addAugmentation(ospfNodeAttributes(nd, na));
break;
default:
break;
}
}
public static void augmentProtocolId(final LinkstateRoute value, final IgpLinkAttributesBuilder ilab,
final LinkAttributes la, final LinkDescriptors ld) {
switch (value.getProtocolId()) {
case Direct:
case Static:
case IsisLevel1:
case IsisLevel2:
ilab.addAugmentation(isisLinkAttributes(ld.getMultiTopologyId(), la));
break;
case OspfV3:
case Ospf:
ilab.addAugmentation(ospfLinkAttributes(ld.getMultiTopologyId(), la));
break;
default:
break;
}
}
private static org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021
.IgpNodeAttributes1 isisNodeAttributes(final NodeIdentifier node, final NodeAttributes na) {
final org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.isis.node
.attributes.isis.node.attributes.TedBuilder tb = new org.opendaylight.yang.gen.v1.urn.tbd.params.xml
.ns.yang.network.isis.topology.rev131021.isis.node.attributes.isis.node.attributes.TedBuilder();
final IsisNodeAttributesBuilder ab = new IsisNodeAttributesBuilder();
if (na != null) {
if (na.getIpv4RouterId() != null) {
tb.setTeRouterIdIpv4(na.getIpv4RouterId());
}
if (na.getIpv6RouterId() != null) {
tb.setTeRouterIdIpv6(na.getIpv6RouterId());
}
if (na.getTopologyIdentifier() != null) {
ab.setMultiTopologyId(nodeMultiTopology(na.getTopologyIdentifier()));
}
}
final CRouterIdentifier ri = node.getCRouterIdentifier();
if (ri instanceof IsisPseudonodeCase) {
final IsisPseudonode pn = ((IsisPseudonodeCase) ri).getIsisPseudonode();
final IsoBuilder b = new IsoBuilder();
final String systemId = UriBuilder.isoId(pn.getIsIsRouterIdentifier().getIsoSystemId());
b.setIsoSystemId(new IsoSystemId(systemId));
b.setIsoPseudonodeId(new IsoPseudonodeId(BaseEncoding.base16()
.encode(new byte[]{pn.getPsn().byteValue()})));
ab.setIso(b.build());
if (na != null) {
ab.setNet(toIsoNetIds(na.getIsisAreaId(), systemId));
}
} else if (ri instanceof IsisNodeCase) {
final IsisNode in = ((IsisNodeCase) ri).getIsisNode();
final String systemId = UriBuilder.isoId(in.getIsoSystemId());
ab.setIso(new IsoBuilder().setIsoSystemId(new IsoSystemId(systemId)).build());
if (na != null) {
ab.setNet(toIsoNetIds(na.getIsisAreaId(), systemId));
}
}
ab.setTed(tb.build());
return new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021
.IgpNodeAttributes1Builder().setIsisNodeAttributes(ab.build()).build();
}
private static org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021
.IgpNodeAttributes1 ospfNodeAttributes(
final NodeIdentifier node, final NodeAttributes na) {
final org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.node
.attributes.ospf.node.attributes.TedBuilder tb = new org.opendaylight.yang.gen.v1.urn.tbd
.params.xml.ns.yang.ospf.topology.rev131021.ospf.node.attributes.ospf.node.attributes.TedBuilder();
final OspfNodeAttributesBuilder ab = new OspfNodeAttributesBuilder();
if (na != null) {
if (na.getIpv4RouterId() != null) {
tb.setTeRouterIdIpv4(na.getIpv4RouterId());
}
if (na.getIpv6RouterId() != null) {
tb.setTeRouterIdIpv6(na.getIpv6RouterId());
}
if (na.getTopologyIdentifier() != null) {
ab.setMultiTopologyId(nodeMultiTopology(na.getTopologyIdentifier()));
}
final CRouterIdentifier ri = node.getCRouterIdentifier();
if (ri instanceof OspfPseudonodeCase) {
final OspfPseudonode pn = ((OspfPseudonodeCase) ri).getOspfPseudonode();
ab.setRouterType(new PseudonodeBuilder().setPseudonode(Empty.value()).build());
ab.setDrInterfaceId(pn.getLanInterface().getValue());
} else if (ri instanceof OspfNodeCase && na.getNodeFlags() != null) {
// TODO: what should we do with in.getOspfRouterId()?
final NodeFlagBits nf = na.getNodeFlags();
if (nf.getAbr()) {
ab.setRouterType(new AbrBuilder().setAbr(Empty.value()).build());
} else if (nf.getExternal()) {
ab.setRouterType(new InternalBuilder().setInternal(Empty.value()).build());
}
}
}
ab.setTed(tb.build());
return new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021
.IgpNodeAttributes1Builder().setOspfNodeAttributes(ab.build()).build();
}
private static Set toIsoNetIds(final Set areaIds, final String systemId) {
return areaIds.stream().map(input -> new IsoNetId(UriBuilder.toIsoNetId(input, systemId)))
.collect(ImmutableSet.toImmutableSet());
}
private static Set nodeMultiTopology(final Set list) {
final var builder = ImmutableSet.builderWithExpectedSize(list.size());
for (final TopologyIdentifier id : list) {
builder.add(Uint8.valueOf(id.getValue()));
}
return builder.build();
}
private static org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021
.IgpLinkAttributes1 ospfLinkAttributes(final TopologyIdentifier topologyIdentifier,
final LinkAttributes la) {
final org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021.ospf.link.attributes
.ospf.link.attributes.TedBuilder tb = new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang
.ospf.topology.rev131021.ospf.link.attributes.ospf.link.attributes.TedBuilder();
if (la != null) {
if (la.getAdminGroup() != null) {
tb.setColor(la.getAdminGroup().getValue());
}
if (la.getTeMetric() != null) {
tb.setTeDefaultMetric(la.getTeMetric().getValue());
}
if (la.getUnreservedBandwidth() != null) {
tb.setUnreservedBandwidth(unreservedBandwidthList(la.nonnullUnreservedBandwidth().values()));
}
if (la.getMaxLinkBandwidth() != null) {
tb.setMaxLinkBandwidth(bandwidthToDecimal64(la.getMaxLinkBandwidth()));
}
if (la.getMaxReservableBandwidth() != null) {
tb.setMaxResvLinkBandwidth(bandwidthToDecimal64(la.getMaxReservableBandwidth()));
}
if (la.getSharedRiskLinkGroups() != null) {
tb.setSrlg(new SrlgBuilder()
.setSrlgValues(la.getSharedRiskLinkGroups().stream()
.map(id -> new SrlgValuesBuilder().setSrlgValue(id.getValue()).build())
.collect(BindingMap.toOrderedMap()))
.build());
}
}
final OspfLinkAttributesBuilder ilab = new OspfLinkAttributesBuilder();
ilab.setTed(tb.build());
if (topologyIdentifier != null) {
ilab.setMultiTopologyId(Uint8.valueOf(topologyIdentifier.getValue()));
}
return new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.ospf.topology.rev131021
.IgpLinkAttributes1Builder().setOspfLinkAttributes(ilab.build()).build();
}
private static org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021
.IgpLinkAttributes1 isisLinkAttributes(
final TopologyIdentifier topologyIdentifier, final LinkAttributes la) {
final org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021.isis
.link.attributes.isis.link.attributes.TedBuilder tb = new org.opendaylight.yang.gen.v1.urn.tbd.params
.xml.ns.yang.network.isis.topology.rev131021.isis.link.attributes.isis.link.attributes.TedBuilder();
if (la != null) {
if (la.getAdminGroup() != null) {
tb.setColor(la.getAdminGroup().getValue());
}
if (la.getTeMetric() != null) {
tb.setTeDefaultMetric(la.getTeMetric().getValue());
}
if (la.getUnreservedBandwidth() != null) {
tb.setUnreservedBandwidth(unreservedBandwidthList(la.nonnullUnreservedBandwidth().values()));
}
if (la.getMaxLinkBandwidth() != null) {
tb.setMaxLinkBandwidth(bandwidthToDecimal64(la.getMaxLinkBandwidth()));
}
if (la.getMaxReservableBandwidth() != null) {
tb.setMaxResvLinkBandwidth(bandwidthToDecimal64(la.getMaxReservableBandwidth()));
}
if (la.getSharedRiskLinkGroups() != null) {
tb.setSrlg(new SrlgBuilder()
.setSrlgValues(la.getSharedRiskLinkGroups().stream()
.map(id -> new SrlgValuesBuilder().setSrlgValue(id.getValue()).build())
.collect(BindingMap.toOrderedMap()))
.build());
}
}
final IsisLinkAttributesBuilder ilab = new IsisLinkAttributesBuilder();
ilab.setTed(tb.build());
if (topologyIdentifier != null) {
ilab.setMultiTopologyId(Uint8.valueOf(topologyIdentifier.getValue()));
}
return new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.isis.topology.rev131021
.IgpLinkAttributes1Builder().setIsisLinkAttributes(ilab.build()).build();
}
static Decimal64 bandwidthToDecimal64(final Bandwidth bandwidth) {
final float floatValue = ByteBuffer.wrap(bandwidth.getValue()).getFloat();
if (floatValue <= MIN_BANDWIDTH_FLT) {
return MIN_BANDWIDTH;
}
if (floatValue >= MAX_BANDWIDTH_FLT) {
return MAX_BANDWIDTH;
}
// Deal with rounding...
return Decimal64.of(2, BigDecimal.valueOf(floatValue)
.setScale(2, RoundingMode.HALF_UP)
.unscaledValue()
.longValueExact());
}
private static Map unreservedBandwidthList(
final Collection input) {
return input.stream()
.map(bandwidth -> new UnreservedBandwidthBuilder()
.setBandwidth(bandwidthToDecimal64(bandwidth.getBandwidth()))
.withKey(new UnreservedBandwidthKey(bandwidth.getPriority()))
.build())
.collect(BindingMap.toOrderedMap());
}
}
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