+++ /dev/null
-/*
- * Copyright (c) 2016 Pantheon Technologies s.r.o. 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.mdsal.model.ietf.util;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static java.util.Objects.requireNonNull;
-
-import com.google.common.annotations.Beta;
-import com.google.common.net.InetAddresses;
-import java.net.Inet4Address;
-import java.net.Inet6Address;
-import java.net.InetAddress;
-import java.net.UnknownHostException;
-import java.util.AbstractMap.SimpleImmutableEntry;
-import java.util.Map.Entry;
-import org.eclipse.jdt.annotation.NonNull;
-import org.eclipse.jdt.annotation.Nullable;
-import org.opendaylight.mdsal.binding.spec.reflect.StringValueObjectFactory;
-
-/**
- * A set of utility methods to efficiently instantiate various ietf-inet-types DTOs.
- */
-@Beta
-@SuppressWarnings("checkstyle:classTypeParameterName")
-public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ extends A6, P6, A, ANZ, P> {
- private final StringValueObjectFactory<A4NZ> address4NoZoneFactory;
- private final StringValueObjectFactory<P4> prefix4Factory;
- private final StringValueObjectFactory<A6NZ> address6NoZoneFactory;
- private final StringValueObjectFactory<P6> prefix6Factory;
- private final Class<A4NZ> addr4nzClass;
- private final Class<A6NZ> addr6nzClass;
-
- protected AbstractIetfInetUtil(final Class<A4NZ> addr4nzClass, final Class<P4> prefix4Class,
- final Class<A6NZ> addr6nzClass, final Class<P6> prefix6Class) {
- this.addr4nzClass = requireNonNull(addr4nzClass);
- this.addr6nzClass = requireNonNull(addr6nzClass);
- this.address4NoZoneFactory = StringValueObjectFactory.create(addr4nzClass, "0.0.0.0");
- this.prefix4Factory = StringValueObjectFactory.create(prefix4Class, "0.0.0.0/0");
- this.address6NoZoneFactory = StringValueObjectFactory.create(addr6nzClass, "::0");
- this.prefix6Factory = StringValueObjectFactory.create(prefix6Class, "::0/0");
- }
-
- protected abstract @NonNull A ipv4Address(@NonNull A4NZ addr);
-
- protected abstract @NonNull ANZ ipv4AddressNoZone(@NonNull A4NZ addr);
-
- protected abstract @NonNull A ipv6Address(@NonNull A6NZ addr);
-
- protected abstract @NonNull ANZ ipv6AddressNoZone(@NonNull A6NZ addr);
-
- protected abstract @Nullable A4 maybeIpv4Address(@NonNull A addr);
-
- protected abstract @Nullable A4NZ maybeIpv4AddressNoZone(@NonNull ANZ addr);
-
- protected abstract @Nullable A6 maybeIpv6Address(@NonNull A addr);
-
- protected abstract @Nullable A6NZ maybeIpv6AddressNoZone(@NonNull ANZ addr);
-
- protected abstract @NonNull P ipv4Prefix(@NonNull P4 addr);
-
- protected abstract @NonNull P ipv6Prefix(@NonNull P6 addr);
-
- protected abstract @NonNull String ipv4AddressString(@NonNull A4 addr);
-
- protected abstract @NonNull String ipv6AddressString(@NonNull A6 addr);
-
- protected abstract @NonNull String ipv4PrefixString(@NonNull P4 prefix);
-
- protected abstract @NonNull String ipv6PrefixString(@NonNull P6 prefix);
-
- /**
- * Create an IpAddress by interpreting input bytes as an IPv4 or IPv6 address, based on array length.
- *
- * @param bytes 4-byte (IPv4) or 6-byte (IPv6) array
- * @return An IpAddress object
- * @throws IllegalArgumentException if bytes has length different from 4 or 6
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull A ipAddressFor(final byte @NonNull[] bytes) {
- return switch (bytes.length) {
- case Ipv4Utils.INET4_LENGTH -> ipv4Address(ipv4AddressFor(bytes));
- case Ipv6Utils.INET6_LENGTH -> ipv6Address(ipv6AddressFor(bytes));
- default -> throwInvalidArray(bytes);
- };
- }
-
- public final @NonNull A ipAddressFor(final @NonNull InetAddress addr) {
- requireAddress(addr);
- if (addr instanceof Inet4Address) {
- return ipv4Address(ipv4AddressFor(addr));
- } else if (addr instanceof Inet6Address) {
- return ipv6Address(ipv6AddressFor(addr));
- } else {
- throw unhandledAddress(addr);
- }
- }
-
- private static <T> @NonNull T requireAddress(final T addr) {
- return requireNonNull(addr, "Address must not be null");
- }
-
- /**
- * Create an IpAddress by interpreting input bytes as an IPv4 or IPv6 address, based on array length.
- *
- * @param bytes 4-byte (IPv4) or 6-byte (IPv6) array
- * @return A no-zone IpAddress object
- * @throws IllegalArgumentException if bytes has length different from 4 or 6
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull ANZ ipAddressNoZoneFor(final byte @NonNull[] bytes) {
- return switch (bytes.length) {
- case Ipv4Utils.INET4_LENGTH -> ipv4AddressNoZone(ipv4AddressFor(bytes));
- case Ipv6Utils.INET6_LENGTH -> ipv6AddressNoZone(ipv6AddressFor(bytes));
- default -> throwInvalidArray(bytes);
- };
- }
-
- public final @NonNull ANZ ipAddressNoZoneFor(final @NonNull InetAddress addr) {
- requireAddress(addr);
- if (addr instanceof Inet4Address) {
- return ipv4AddressNoZone(ipv4AddressFor(addr));
- } else if (addr instanceof Inet6Address) {
- return ipv6AddressNoZone(ipv6AddressFor(addr));
- } else {
- throw unhandledAddress(addr);
- }
- }
-
- private static <T> T throwInvalidArray(final byte[] bytes) {
- throw new IllegalArgumentException("Invalid array length " + bytes.length);
- }
-
- private static IllegalArgumentException unhandledAddress(final InetAddress addr) {
- return new IllegalArgumentException("Unhandled address " + addr);
- }
-
- /**
- * Create an IpPrefix by combining the address with a mask. The address
- * bytes are interpreted as an address and the specified mask is concatenated to
- * it. The address bytes are not masked.
- *
- * @param bytes Input address as a 4-byte (IPv4) or 16-byte (IPv6) array
- * @param mask Prefix mask
- * @return An IpPrefix object
- * @throws IllegalArgumentException if bytes has length different from 4 or 16 or if mask is not
- * in range 0-32 or 0-128 respectively
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull P ipPrefixFor(final byte @NonNull[] bytes, final int mask) {
- return switch (bytes.length) {
- case Ipv4Utils.INET4_LENGTH -> ipv4Prefix(ipv4PrefixFor(bytes, mask));
- case Ipv6Utils.INET6_LENGTH -> ipv6Prefix(ipv6PrefixFor(bytes, mask));
- default -> throwInvalidArray(bytes);
- };
- }
-
- public final @NonNull P ipPrefixFor(final @NonNull InetAddress addr, final int mask) {
- requireAddress(addr);
- if (addr instanceof Inet4Address) {
- return ipv4Prefix(ipv4PrefixFor(addr, mask));
- } else if (addr instanceof Inet6Address) {
- return ipv6Prefix(ipv6PrefixFor(addr, mask));
- } else {
- throw unhandledAddress(addr);
- }
- }
-
- public final @NonNull P ipPrefixFor(final @NonNull A addr) {
- final A4 v4 = maybeIpv4Address(addr);
- return v4 != null ? ipv4Prefix(ipv4PrefixFor(v4)) : ipv6Prefix(ipv6PrefixFor(coerceIpv6Address(addr)));
- }
-
- public final @NonNull P ipPrefixForNoZone(final @NonNull ANZ addr) {
- final A4NZ v4 = maybeIpv4AddressNoZone(addr);
- return v4 != null ? ipv4Prefix(ipv4PrefixFor(inet4AddressForNoZone(v4)))
- : ipv6Prefix(ipv6PrefixFor(coerceIpv6AddressNoZone(addr)));
- }
-
- public final @NonNull InetAddress inetAddressFor(final @NonNull A addr) {
- final A4 v4 = maybeIpv4Address(addr);
- return v4 != null ? inet4AddressFor(v4) : inet6AddressFor(coerceIpv6Address(addr));
- }
-
- public final @NonNull InetAddress inetAddressForNoZone(final @NonNull ANZ addr) {
- final A4NZ v4 = maybeIpv4AddressNoZone(addr);
- return v4 != null ? inet4AddressForNoZone(v4) : inet6AddressForNoZone(coerceIpv6AddressNoZone(addr));
- }
-
- public final @NonNull Inet4Address inet4AddressFor(final @NonNull A4 addr) {
- try {
- return (Inet4Address) InetAddress.getByAddress(ipv4AddressBytes(addr));
- } catch (UnknownHostException e) {
- throw new IllegalArgumentException("Invalid address " + addr, e);
- }
- }
-
- public final @NonNull Inet4Address inet4AddressForNoZone(final @NonNull A4NZ addr) {
- try {
- return (Inet4Address) InetAddress.getByAddress(ipv4AddressNoZoneBytes(addr));
- } catch (UnknownHostException e) {
- throw new IllegalArgumentException("Invalid address " + addr, e);
- }
- }
-
- public final @NonNull Inet6Address inet6AddressFor(final @NonNull A6 addr) {
- try {
- return (Inet6Address) InetAddress.getByAddress(ipv6AddressBytes(addr));
- } catch (UnknownHostException e) {
- throw new IllegalArgumentException("Invalid address " + addr, e);
- }
- }
-
- public final @NonNull Inet6Address inet6AddressForNoZone(final @NonNull A6NZ addr) {
- try {
- return (Inet6Address) InetAddress.getByAddress(ipv6AddressNoZoneBytes(addr));
- } catch (UnknownHostException e) {
- throw new IllegalArgumentException("Invalid address " + addr, e);
- }
- }
-
- /**
- * Create an Ipv4AddressNoZone by interpreting input bytes as an IPv4 address.
- *
- * @param bytes 4-byte array
- * @return An Ipv4AddressNoZone object
- * @throws IllegalArgumentException if bytes has length different from 4
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull A4NZ ipv4AddressFor(final byte @NonNull[] bytes) {
- return address4NoZoneFactory.newInstance(Ipv4Utils.addressString(bytes));
- }
-
- /**
- * Create an Ipv4AddressNoZone by interpreting an {@link Inet4Address}.
- *
- * @param addr An {@link Inet4Address}
- * @return An Ipv4AddressNoZone object
- * @throws IllegalArgumentException if addr is not an {@link Inet4Address}
- * @throws NullPointerException if addr is null
- */
- public final @NonNull A4NZ ipv4AddressFor(final @NonNull InetAddress addr) {
- return address4NoZoneFactory.newInstance(addressStringV4(addr));
- }
-
- /**
- * Create an Ipv4AddressNoZone by interpreting input 32 bits as an IPv4 address in big-endian format.
- *
- * @param bits 32 bits, big endian
- * @return An Ipv4AddressNoZone object
- */
- public final @NonNull A4NZ ipv4AddressFor(final int bits) {
- return address4NoZoneFactory.newInstance(Ipv4Utils.addressString(bits));
- }
-
- /**
- * Create an Ipv4AddressNoZone by interpreting an Ipv4Address.
- *
- * @param addr An Ipv4Address
- * @return An Ipv4AddressNoZone object
- * @throws NullPointerException if addr is null
- */
- public final @NonNull A4NZ ipv4AddressNoZoneFor(final @NonNull A4 addr) {
- requireAddress(addr);
- return addr4nzClass.isInstance(addr) ? addr4nzClass.cast(addr)
- : address4NoZoneFactory.newInstance(stripZone(ipv4AddressString(addr)));
- }
-
- public final @NonNull A4NZ ipv4AddressFrom(final @NonNull P4 prefix) {
- return prefixToAddress(address4NoZoneFactory, ipv4PrefixString(prefix));
- }
-
- public final byte @NonNull[] ipv4AddressBytes(final @NonNull A4 addr) {
- /*
- * This implementation relies heavily on the input string having been validated to comply with
- * the Ipv4Address pattern, which may include a zone index.
- */
- final String str = ipv4AddressString(addr);
- final int percent = str.indexOf('%');
- return Ipv4Utils.addressBytes(str, percent == -1 ? str.length() : percent);
- }
-
- public final int ipv4AddressBits(final @NonNull A4 addr) {
- final String str = ipv4AddressString(addr);
- final int percent = str.indexOf('%');
- return Ipv4Utils.addressBits(str, percent == -1 ? str.length() : percent);
- }
-
- public final byte @NonNull[] ipv4AddressNoZoneBytes(final @NonNull A4NZ addr) {
- /*
- * This implementation relies heavily on the input string having been validated to comply with
- * the Ipv4AddressNoZone pattern, which must not include a zone index.
- */
- final String str = ipv4AddressString(addr);
- return Ipv4Utils.addressBytes(str, str.length());
- }
-
- public final int ipv4AddressNoZoneBits(final @NonNull A4NZ addr) {
- final String str = ipv4AddressString(addr);
- return Ipv4Utils.addressBits(str, str.length());
- }
-
- /**
- * Create a /32 Ipv4Prefix by interpreting input bytes as an IPv4 address.
- *
- * @param bytes four-byte array
- * @return An Ipv4Prefix object
- * @throws IllegalArgumentException if bytes has length different from 4
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull P4 ipv4PrefixFor(final byte @NonNull[] bytes) {
- return prefix4Factory.newInstance(prefixStringV4(bytes));
- }
-
- /**
- * Create a Ipv4Prefix by combining the address with a mask. The address
- * bytes are interpreted as an address and the specified mask is concatenated to
- * it. The address bytes are not masked, hence input <code>address = { 1, 2, 3, 4 }</code>
- * and <code>mask=24</code> will result in <code>1.2.3.4/24</code>.
- *
- * @param address Input address as a 4-byte array
- * @param mask Prefix mask
- * @return An Ipv4Prefix object
- * @throws IllegalArgumentException if bytes has length different from 4 or if mask is not in range 0-32
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull P4 ipv4PrefixFor(final byte @NonNull[] address, final int mask) {
- return prefix4Factory.newInstance(prefixStringV4(address, mask));
- }
-
- /**
- * Create a /32 Ipv4Prefix for an {@link Inet4Address}.
- *
- * @param addr An {@link Inet4Address}
- * @return An Ipv4Prefix object
- * @throws IllegalArgumentException if addr is not an Inet4Address
- * @throws NullPointerException if addr is null
- */
- public final @NonNull P4 ipv4PrefixFor(final @NonNull InetAddress addr) {
- return prefix4Factory.newInstance(addressStringV4(addr) + "/32");
- }
-
- /**
- * Create a Ipv4Prefix by combining the address with a mask. The address bytes are not masked.
- *
- * @param addr An {@link Inet4Address}
- * @param mask Prefix mask
- * @return An Ipv4Prefix object
- * @throws IllegalArgumentException if addr is not an Inet4Address or if mask is not in range 0-32
- * @throws NullPointerException if addr is null
- */
- public final @NonNull P4 ipv4PrefixFor(final @NonNull InetAddress addr, final int mask) {
- return newIpv4Prefix(addressStringV4(addr), mask);
- }
-
- public final @NonNull P4 ipv4PrefixFor(final @NonNull A4 addr) {
- return prefix4Factory.newInstance(stripZone(ipv4AddressString(requireAddress(addr))) + "/32");
- }
-
- public final @NonNull P4 ipv4PrefixFor(final @NonNull A4 addr, final int mask) {
- return newIpv4Prefix(stripZone(ipv4AddressString(requireAddress(addr))), mask);
- }
-
- public final @NonNull P4 ipv4PrefixForNoZone(final @NonNull A4NZ addr) {
- return prefix4Factory.newInstance(ipv4AddressString(requireAddress(addr)) + "/32");
- }
-
- public final @NonNull P4 ipv4PrefixForNoZone(final @NonNull A4NZ addr, final int mask) {
- return newIpv4Prefix(ipv4AddressString(requireAddress(addr)), mask);
- }
-
- public final @NonNull P4 ipv4PrefixForShort(final byte @NonNull[] address, final int mask) {
- if (mask == 0) {
- // Easy case, reuse the template
- return prefix4Factory.getTemplate();
- }
-
- return v4PrefixForShort(address, 0, mask / Byte.SIZE + (mask % Byte.SIZE == 0 ? 0 : 1), mask);
- }
-
- public final @NonNull P4 ipv4PrefixForShort(final byte @NonNull[] array, final int startOffset, final int mask) {
- if (mask == 0) {
- // Easy case, reuse the template
- return prefix4Factory.getTemplate();
- }
-
- return v4PrefixForShort(array, startOffset, mask / Byte.SIZE + (mask % Byte.SIZE == 0 ? 0 : 1), mask);
- }
-
- private static String stripZone(final String str) {
- final int percent = str.indexOf('%');
- return percent == -1 ? str : str.substring(0, percent);
- }
-
- private @NonNull P4 newIpv4Prefix(final String addr, final int mask) {
- checkArgument(mask >= 0 && mask <= 32, "Invalid mask %s", mask);
- return prefix4Factory.newInstance(addr + '/' + mask);
- }
-
- public final @NonNull Entry<A4NZ, Integer> splitIpv4Prefix(final @NonNull P4 prefix) {
- return splitPrefix(address4NoZoneFactory, ipv4PrefixString(prefix));
- }
-
- public final byte @NonNull[] ipv4PrefixToBytes(final @NonNull P4 prefix) {
- final String str = ipv4PrefixString(prefix);
- final int slash = str.lastIndexOf('/');
-
- final byte[] bytes = new byte[Ipv4Utils.INET4_LENGTH + 1];
- Ipv4Utils.fillIpv4Bytes(bytes, 0, str, 0, slash);
- bytes[Ipv4Utils.INET4_LENGTH] = (byte)Integer.parseInt(str.substring(slash + 1), 10);
- return bytes;
- }
-
- /**
- * Create an Ipv6Address by interpreting input bytes as an IPv6 address.
- *
- * @param bytes 16-byte array
- * @return An Ipv6Address object
- * @throws IllegalArgumentException if bytes has length different from 16
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull A6NZ ipv6AddressFor(final byte @NonNull[] bytes) {
- return address6NoZoneFactory.newInstance(addressStringV6(bytes));
- }
-
- /**
- * Create an Ipv6Address by interpreting an {@link Inet6Address}.
- *
- * @param addr An {@link Inet6Address}
- * @return An Ipv6Address object
- * @throws IllegalArgumentException if addr is not an {@link Inet6Address}
- * @throws NullPointerException if addr is null
- */
- public final @NonNull A6NZ ipv6AddressFor(final @NonNull InetAddress addr) {
- return address6NoZoneFactory.newInstance(addressStringV6(addr));
- }
-
- /**
- * Create an Ipv6AddressNoZone by interpreting an Ipv6Address.
- *
- * @param addr An Ipv6Address
- * @return An Ipv6AddressNoZone object
- * @throws NullPointerException if addr is null
- */
- public final @NonNull A6NZ ipv6AddressNoZoneFor(final @NonNull A6 addr) {
- requireAddress(addr);
- return addr6nzClass.isInstance(addr) ? addr6nzClass.cast(addr)
- : address6NoZoneFactory.newInstance(stripZone(ipv6AddressString(addr)));
- }
-
- public final @NonNull A6NZ ipv6AddressFrom(final @NonNull P6 prefix) {
- return prefixToAddress(address6NoZoneFactory, ipv6PrefixString(prefix));
- }
-
- public final byte @NonNull[] ipv6AddressBytes(final @NonNull A6 addr) {
- final String str = ipv6AddressString(addr);
- final int percent = str.indexOf('%');
- return ipv6StringBytes(str, percent == -1 ? str.length() : percent);
- }
-
- public final byte @NonNull[] ipv6AddressNoZoneBytes(final @NonNull A6NZ addr) {
- final String str = ipv6AddressString(addr);
- return ipv6StringBytes(str, str.length());
- }
-
- private static byte @NonNull[] ipv6StringBytes(final @NonNull String str, final int limit) {
- final byte[] bytes = new byte[Ipv6Utils.INET6_LENGTH];
- Ipv6Utils.fillIpv6Bytes(bytes, str, limit);
- return bytes;
- }
-
- /**
- * Create a /128 Ipv6Prefix by interpreting input bytes as an IPv6 address.
- *
- * @param bytes four-byte array
- * @return An Ipv6Prefix object
- * @throws IllegalArgumentException if bytes has length different from 16
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull P6 ipv6PrefixFor(final byte @NonNull[] bytes) {
- return prefix6Factory.newInstance(addressStringV6(bytes) + "/128");
- }
-
- /**
- * Create a Ipv6Prefix by combining the address with a mask. The address
- * bytes are interpreted as an address and the specified mask is concatenated to
- * it. The address bytes are not masked.
- *
- * @param address Input address as a 16-byte array
- * @param mask Prefix mask
- * @return An Ipv6Prefix object
- * @throws IllegalArgumentException if bytes has length different from 16 or if mask is not in range 0-128
- * @throws NullPointerException if bytes is null
- */
- public final @NonNull P6 ipv6PrefixFor(final byte @NonNull[] address, final int mask) {
- checkArgument(mask >= 0 && mask <= 128, "Invalid mask %s", mask);
- return prefix6Factory.newInstance(addressStringV6(address) + '/' + mask);
- }
-
- /**
- * Create a /128 Ipv6Prefix by interpreting input bytes as an IPv6 address.
- *
- * @param addr an {@link Inet6Address}
- * @return An Ipv6Prefix object
- * @throws IllegalArgumentException if addr is not an Inet6Address
- * @throws NullPointerException if addr is null
- */
- public final @NonNull P6 ipv6PrefixFor(final @NonNull InetAddress addr) {
- return prefix6Factory.newInstance(addressStringV6(addr) + "/128");
- }
-
- /**
- * Create a Ipv6Prefix by combining the address with a mask. The address
- * bytes are interpreted as an address and the specified mask is concatenated to
- * it. The address bytes are not masked.
- *
- * @param addr Input address
- * @param mask Prefix mask
- * @return An Ipv6Prefix object
- * @throws IllegalArgumentException if addr is not an Inet6Address or if mask is not in range 0-128
- * @throws NullPointerException if addr is null
- */
- public final @NonNull P6 ipv6PrefixFor(final @NonNull InetAddress addr, final int mask) {
- checkArgument(mask >= 0 && mask <= 128, "Invalid mask %s", mask);
- return prefix6Factory.newInstance(addressStringV6(addr) + '/' + mask);
- }
-
- public final @NonNull P6 ipv6PrefixFor(final @NonNull A6 addr) {
- return prefix6Factory.newInstance(stripZone(ipv6AddressString(requireAddress(addr))) + "/128");
- }
-
- public final @NonNull P6 ipv6PrefixFor(final @NonNull A6 addr, final int mask) {
- return newIpv6Prefix(stripZone(ipv6AddressString(requireAddress(addr))), mask);
- }
-
- public final @NonNull P6 ipv6PrefixForNoZone(final @NonNull A6NZ addr) {
- return prefix6Factory.newInstance(ipv6AddressString(requireAddress(addr)) + "/128");
- }
-
- public final @NonNull P6 ipv6PrefixForNoZone(final @NonNull A6NZ addr, final int mask) {
- return newIpv6Prefix(ipv6AddressString(requireAddress(addr)), mask);
- }
-
- public final @NonNull P6 ipv6PrefixForShort(final byte @NonNull[] address, final int mask) {
- return ipv6PrefixForShort(address, 0, mask);
- }
-
- public final @NonNull P6 ipv6PrefixForShort(final byte @NonNull[] array, final int startOffset, final int mask) {
- if (mask == 0) {
- // Easy case, reuse the template
- return prefix6Factory.getTemplate();
- }
-
- checkArgument(mask > 0 && mask <= 128, "Invalid mask %s", mask);
- final int size = mask / Byte.SIZE + (mask % Byte.SIZE == 0 ? 0 : 1);
-
- // Until we can instantiate an IPv6 address for a partial array, use a temporary buffer
- byte[] tmp = new byte[Ipv6Utils.INET6_LENGTH];
- System.arraycopy(array, startOffset, tmp, 0, size);
- return ipv6PrefixFor(tmp, mask);
- }
-
- private P6 newIpv6Prefix(final String addr, final int mask) {
- checkArgument(mask >= 0 && mask <= 128, "Invalid mask %s", mask);
- return prefix6Factory.newInstance(addr + '/' + mask);
- }
-
- public final @NonNull Entry<A6NZ, Integer> splitIpv6Prefix(final @NonNull P6 prefix) {
- return splitPrefix(address6NoZoneFactory, ipv6PrefixString(prefix));
- }
-
- private static <T> @NonNull T prefixToAddress(final StringValueObjectFactory<T> factory, final String str) {
- return factory.newInstance(str.substring(0, str.lastIndexOf('/')));
- }
-
- private static <T> @NonNull Entry<T, Integer> splitPrefix(final StringValueObjectFactory<T> factory,
- final String str) {
- final int slash = str.lastIndexOf('/');
- return new SimpleImmutableEntry<>(factory.newInstance(str.substring(0, slash)),
- Integer.valueOf(str.substring(slash + 1)));
- }
-
- public final byte @NonNull[] ipv6PrefixToBytes(final @NonNull P6 prefix) {
- final String str = ipv6PrefixString(prefix);
- final byte[] bytes = new byte[Ipv6Utils.INET6_LENGTH + 1];
- final int slash = str.lastIndexOf('/');
- Ipv6Utils.fillIpv6Bytes(bytes, str, slash);
- bytes[Ipv6Utils.INET6_LENGTH] = (byte)Integer.parseInt(str.substring(slash + 1), 10);
- return bytes;
- }
-
- private static @NonNull String addressStringV4(final InetAddress addr) {
- requireAddress(addr);
- checkArgument(addr instanceof Inet4Address, "Address has to be an Inet4Address");
- return addr.getHostAddress();
- }
-
- private static String addressStringV6(final byte @NonNull[] bytes) {
- checkArgument(bytes.length == Ipv6Utils.INET6_LENGTH, "IPv6 address length is 16 bytes");
-
- try {
- return addressStringV6(Inet6Address.getByAddress(null, bytes, null));
- } catch (UnknownHostException e) {
- throw new IllegalArgumentException(String.format("Invalid input %s", bytes), e);
- }
- }
-
- private static String addressStringV6(final InetAddress addr) {
- requireAddress(addr);
- checkArgument(addr instanceof Inet6Address, "Address has to be an Inet6Address");
- return addressStringV6((Inet6Address) addr);
- }
-
- private static String addressStringV6(final Inet6Address addr) {
- return InetAddresses.toAddrString(addr);
- }
-
- private static String prefixStringV4(final byte @NonNull[] bytes) {
- final StringBuilder sb = new StringBuilder(18);
- Ipv4Utils.appendIpv4String(sb, bytes);
- return sb.append("/32").toString();
- }
-
- private static String prefixStringV4(final byte @NonNull[] bytes, final int mask) {
- checkArgument(mask >= 0 && mask <= 32, "Invalid mask %s", mask);
-
- final StringBuilder sb = new StringBuilder(18);
- Ipv4Utils.appendIpv4String(sb, bytes);
- return sb.append('/').append(mask).toString();
- }
-
- private P4 v4PrefixForShort(final byte @NonNull[] array, final int startOffset, final int size, final int mask) {
- if (startOffset == 0 && size == Ipv4Utils.INET4_LENGTH && array.length == Ipv4Utils.INET4_LENGTH) {
- // Easy case, fall back to non-short
- return ipv4PrefixFor(array, mask);
- }
-
- final StringBuilder sb = new StringBuilder(18);
-
- // Add from address
- sb.append(Byte.toUnsignedInt(array[startOffset]));
- for (int i = 1; i < size; i++) {
- sb.append('.').append(Byte.toUnsignedInt(array[startOffset + i]));
- }
-
- // Add zeros
- for (int i = size; i < Ipv4Utils.INET4_LENGTH; i++) {
- sb.append(".0");
- }
-
- // Add mask
- checkArgument(mask > 0 && mask <= 32, "Invalid mask %s", mask);
- sb.append('/').append(mask);
-
- return prefix4Factory.newInstance(sb.toString());
- }
-
- private @NonNull A6 coerceIpv6Address(final @NonNull A addr) {
- final A6 ret = maybeIpv6Address(addr);
- checkArgument(ret != null, "Address %s is neither IPv4 nor IPv6", addr);
- return ret;
- }
-
- private @NonNull A6NZ coerceIpv6AddressNoZone(final @NonNull ANZ addr) {
- final A6NZ ret = maybeIpv6AddressNoZone(addr);
- checkArgument(ret != null, "Address %s is neither IPv4 nor IPv6", addr);
- return ret;
- }
-}
Code Review / mdsal.git / blobdiff