/*
 * Copyright (c) 2016 Brocade Communications Systems, Inc. and others.  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.protocol.bgp.flowspec.l3vpn.ipv6;

import io.netty.buffer.ByteBuf;
import java.util.List;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.opendaylight.protocol.bgp.flowspec.SimpleFlowspecTypeRegistry;
import org.opendaylight.protocol.bgp.flowspec.ipv6.FlowspecIpv6NlriParserHelper;
import org.opendaylight.protocol.bgp.flowspec.l3vpn.AbstractFlowspecL3vpnNlriParser;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.flowspec.destination.Flowspec;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.flowspec.destination.FlowspecBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.flowspec.destination.flowspec.FlowspecType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.flowspec.l3vpn.destination.ipv6.DestinationFlowspecL3vpnIpv6;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.flowspec.l3vpn.destination.ipv6.DestinationFlowspecL3vpnIpv6Builder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.PathId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.destination.DestinationType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.RouteDistinguisher;
import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;

/**
 * @author Kevin Wang
 */
public final class FlowspecL3vpnIpv6NlriParser extends AbstractFlowspecL3vpnNlriParser {

    public FlowspecL3vpnIpv6NlriParser(SimpleFlowspecTypeRegistry flowspecTypeRegistry) {
        super(flowspecTypeRegistry);
    }

    @Override
    public DestinationType createWithdrawnDestinationType(@Nonnull final Object[] nlriFields, @Nullable final PathId pathId) {
        final RouteDistinguisher rd = (RouteDistinguisher) nlriFields[0];
        final List<Flowspec> flowspecList = (List<Flowspec>) nlriFields[1];
        return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationFlowspecL3vpnIpv6CaseBuilder()
            .setDestinationFlowspecL3vpnIpv6(
                new DestinationFlowspecL3vpnIpv6Builder()
                    .setRouteDistinguisher(rd)
                    .setFlowspec(flowspecList)
                    .setPathId(pathId)
                    .build()
            ).build();
    }

    @Override
    public DestinationType createAdvertizedRoutesDestinationType(@Nonnull final Object[] nlriFields, @Nullable final PathId pathId) {
        final RouteDistinguisher rd = (RouteDistinguisher) nlriFields[0];
        final List<Flowspec> flowspecList = (List<Flowspec>) nlriFields[1];
        return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationFlowspecL3vpnIpv6CaseBuilder()
            .setDestinationFlowspecL3vpnIpv6(
                new DestinationFlowspecL3vpnIpv6Builder()
                    .setRouteDistinguisher(rd)
                    .setFlowspec(flowspecList)
                    .setPathId(pathId)
                    .build()
            ).build();
    }

    @Override
    public void extractSpecificFlowspec(final ChoiceNode fsType, final FlowspecBuilder fsBuilder) {
        FlowspecIpv6NlriParserHelper.extractFlowspec(fsType, fsBuilder);
    }

    @Override
    protected void stringSpecificFSNlriType(final FlowspecType value, final StringBuilder buffer) {
        FlowspecIpv6NlriParserHelper.buildFlowspecString(value, buffer);
    }

    @Override
    protected void serializeMpReachNlri(final DestinationType dstType, final ByteBuf byteAggregator) {
        if (dstType instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationFlowspecL3vpnIpv6Case) {
            final DestinationFlowspecL3vpnIpv6 destFlowspec = ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationFlowspecL3vpnIpv6Case) dstType)
                .getDestinationFlowspecL3vpnIpv6();
            serializeNlri(
                new Object[] {
                    destFlowspec.getRouteDistinguisher(),
                    destFlowspec.getFlowspec()
                },
                destFlowspec.getPathId(),
                byteAggregator
            );
        }
    }

    @Override
    protected void serializeMpUnreachNlri(final DestinationType dstType, final ByteBuf byteAggregator) {
        if (dstType instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationFlowspecL3vpnIpv6Case) {
            final DestinationFlowspecL3vpnIpv6 destFlowspec = ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationFlowspecL3vpnIpv6Case) dstType)
                .getDestinationFlowspecL3vpnIpv6();
            serializeNlri(
                new Object[] {
                    destFlowspec.getRouteDistinguisher(),
                    destFlowspec.getFlowspec()
                },
                destFlowspec.getPathId(),
                byteAggregator
            );
        }
    }
}