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/*
 * Copyright (c) 2017 Cisco and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.fd.hc2vpp.v3po.read;

import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.spi.read.Initialized;
import io.fd.honeycomb.translate.spi.read.InitializingReaderCustomizer;
import io.fd.honeycomb.translate.util.RWUtils;
import io.fd.jvpp.core.future.FutureJVppCore;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.VppInterfaceAugmentation;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.VppInterfaceAugmentationBuilder;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.interfaces._interface.Routing;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.interfaces._interface.RoutingBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.Interface;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class InterfaceRoutingCustomizer extends RoutingCustomizer implements
        InitializingReaderCustomizer<Routing, RoutingBuilder> {

    private static final Logger LOG = LoggerFactory.getLogger(InterfaceRoutingCustomizer.class);

    public InterfaceRoutingCustomizer(@Nonnull final FutureJVppCore vppApi,
                                      @Nonnull final NamingContext interfaceContext) {
        super(vppApi, interfaceContext);
    }

    @Nonnull
    @Override
    public RoutingBuilder getBuilder(@Nonnull final InstanceIdentifier<Routing> id) {
        return new RoutingBuilder();
    }

    @Override
    public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Routing> id,
                                      @Nonnull final RoutingBuilder builder,
                                      @Nonnull final ReadContext ctx) throws ReadFailedException {
        LOG.debug("Reading attributes for Routing: {}", id);
        final String ifName = id.firstKeyOf(Interface.class).getName();
        readInterfaceRouting(id, builder::setIpv4VrfId, builder::setIpv6VrfId, ctx, ifName);
    }

    @Override
    public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final Routing readValue) {
        ((VppInterfaceAugmentationBuilder) parentBuilder).setRouting(readValue);
    }

    @Nonnull
    @Override
    public Initialized<org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.interfaces._interface.Routing> init(
            @Nonnull final InstanceIdentifier<Routing> id,
            @Nonnull final Routing readValue,
            @Nonnull final ReadContext ctx) {
        return Initialized.create(getCfgId(id),
                new org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.interfaces._interface.RoutingBuilder()
                        .setIpv4VrfId(readValue.getIpv4VrfId())
                        .setIpv6VrfId(readValue.getIpv6VrfId())
                        .build());
    }

    private InstanceIdentifier<org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.interfaces._interface.Routing> getCfgId(
            final InstanceIdentifier<Routing> id) {
        return InterfaceCustomizer.getCfgId(RWUtils.cutId(id, Interface.class))
                .augmentation(VppInterfaceAugmentation.class)
                .child(
                        org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev190527.interfaces._interface.Routing.class);
    }
}