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package io.fd.honeycomb.translate.v3po.util;

import static com.google.common.base.Preconditions.checkNotNull;

import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone;

/**
 * Aggregation trait providing logic for converting address based data
 */
public interface AddressTranslator extends Ipv4Translator, Ipv6Translator, MacTranslator {

    default byte[] ipAddressToArray(IpAddress address) {
        checkNotNull(address, "Cannot resolve null adddress");

        if (isIpv6(address)) {
            return ipv6AddressNoZoneToArray(new Ipv6AddressNoZone(address.getIpv6Address()));
        } else {
            return ipv4AddressNoZoneToArray(new Ipv4AddressNoZone(address.getIpv4Address()));
        }
    }


    /**
     * Converts {@link IpAddress} to array representing {@link Ipv4Address} or {@link Ipv6Address}
     */
    default byte[] ipAddressToArray(boolean isIpv6, @Nonnull IpAddress address) {
        checkNotNull(address, "Cannot convert null Address");

        if (isIpv6) {
            return ipv6AddressNoZoneToArray(new Ipv6AddressNoZone(address.getIpv6Address()));
        } else {
            return ipv4AddressNoZoneToArray(new Ipv4AddressNoZone(address.getIpv4Address()));
        }
    }

    /**
     * Converts array bytes to {@link IpAddress}
     */
    @Nonnull
    default IpAddress arrayToIpAddress(boolean isIpv6, byte[] ip) {
        if (isIpv6) {
            return new IpAddress(arrayToIpv6AddressNoZone(ip));
        } else {
            return new IpAddress(arrayToIpv4AddressNoZone(ip));
        }
    }

    default IpAddress reverseAddress(@Nonnull final IpAddress address) {
        //arrayToIpAdddress internaly reverts order
        return arrayToIpAddress(isIpv6(address), ipAddressToArray(address));
    }
}