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/*
* Copyright (c) 2016 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.common.translate.util;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.Arrays;
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.IpAddressNoZone;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
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 {
AddressTranslator INSTANCE = new AddressTranslator() {
};
default byte[] ipAddressToArray(IpAddress address) {
checkNotNull(address, "Cannot resolve null address");
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()));
}
}
default byte[] ipAddressToArray(IpAddressNoZone address) {
checkNotNull(address, "Cannot resolve null address");
if (isIpv6(address)) {
return ipv6AddressNoZoneToArray(address.getIpv6AddressNoZone());
} else {
return ipv4AddressNoZoneToArray(address.getIpv4AddressNoZone());
}
}
/**
* 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));
}
}
// safest way to compare addresses - prevents returning false while using different types from hierarchy
// Ex. Key for MapResolver contains Ipv4Address as value but we translate addresses from binary data to Ipv4AddressNoZone
default boolean addressesEqual(final IpAddress left, final IpAddress right) {
return left.stringValue().equalsIgnoreCase(right.stringValue());
}
/**
* Extract mask length from prefixed address
*/
default byte extractPrefix(IpPrefix ipPrefix) {
if (isIpv6(ipPrefix)) {
return extractPrefix(ipPrefix.getIpv6Prefix());
} else {
return extractPrefix(ipPrefix.getIpv4Prefix());
}
}
/**
* Convert address part of prefix to byte array
*/
default byte[] ipPrefixToArray(IpPrefix ipPrefix) {
if (isIpv6(ipPrefix)) {
return ipv6AddressPrefixToArray(ipPrefix.getIpv6Prefix());
} else {
return ipv4AddressPrefixToArray(ipPrefix.getIpv4Prefix());
}
}
}
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