| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * 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 org.onosproject.lisp.msg.types.lcaf; |
| |
| import io.netty.buffer.ByteBuf; |
| import org.onosproject.lisp.msg.exceptions.LispParseError; |
| import org.onosproject.lisp.msg.exceptions.LispReaderException; |
| import org.onosproject.lisp.msg.exceptions.LispWriterException; |
| import org.onosproject.lisp.msg.types.LispAddressReader; |
| import org.onosproject.lisp.msg.types.LispAddressWriter; |
| import org.onosproject.lisp.msg.types.LispAfiAddress; |
| |
| import java.util.Objects; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * AS Numbers type LCAF address class. |
| * <p> |
| * AS Number type is defined in draft-ietf-lisp-lcaf-22 |
| * https://tools.ietf.org/html/draft-ietf-lisp-lcaf-22#page-9 |
| * |
| * <pre> |
| * {@literal |
| * 0 1 2 3 |
| * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | AFI = 16387 | Rsvd1 | Flags | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | Type = 3 | Rsvd2 | Length | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | AS Number | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | AFI = x | Address ... | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * }</pre> |
| */ |
| public final class LispAsLcafAddress extends LispLcafAddress { |
| |
| private final LispAfiAddress address; |
| private final int asNumber; |
| |
| /** |
| * Initializes AS numbers type LCAF address. |
| * |
| * @param asNumber AS number |
| * @param address AFI address |
| */ |
| private LispAsLcafAddress(int asNumber, LispAfiAddress address) { |
| super(LispCanonicalAddressFormatEnum.AS); |
| this.asNumber = asNumber; |
| this.address = address; |
| } |
| |
| /** |
| * Obtains address. |
| * |
| * @return address |
| */ |
| public LispAfiAddress getAddress() { |
| return address; |
| } |
| |
| /** |
| * Obtains AS number. |
| * |
| * @return AS number |
| */ |
| public int getAsNumber() { |
| return asNumber; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(asNumber, address); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj instanceof LispAsLcafAddress) { |
| final LispAsLcafAddress other = (LispAsLcafAddress) obj; |
| return Objects.equals(this.asNumber, other.asNumber) && |
| Objects.equals(this.address, other.address); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this) |
| .add("asNumber", asNumber) |
| .add("address", address) |
| .toString(); |
| } |
| |
| public static final class AsAddressBuilder |
| extends LcafAddressBuilder<AsAddressBuilder> { |
| private int asNumber; |
| private LispAfiAddress address; |
| |
| /** |
| * Sets AS number. |
| * |
| * @param asNumber AS number |
| * @return AsAddressBuilder object |
| */ |
| public AsAddressBuilder withAsNumber(int asNumber) { |
| this.asNumber = asNumber; |
| return this; |
| } |
| |
| /** |
| * Sets AFI address. |
| * |
| * @param address AFI address |
| * @return AsAddressBuilder object |
| */ |
| public AsAddressBuilder withAddress(LispAfiAddress address) { |
| this.address = address; |
| return this; |
| } |
| |
| /** |
| * Builds LispAsLcafAddress instance. |
| * |
| * @return LispAsLcafAddress instance |
| */ |
| public LispAsLcafAddress build() { |
| |
| checkNotNull(address, "Must specify an address"); |
| |
| return new LispAsLcafAddress(asNumber, address); |
| } |
| } |
| |
| /** |
| * AS number LCAF address reader class. |
| */ |
| public static class AsLcafAddressReader |
| implements LispAddressReader<LispAsLcafAddress> { |
| |
| @Override |
| public LispAsLcafAddress readFrom(ByteBuf byteBuf) |
| throws LispParseError, LispReaderException { |
| |
| LispLcafAddress.deserializeCommon(byteBuf); |
| |
| int asNumber = (int) byteBuf.readUnsignedInt(); |
| LispAfiAddress address = new LispAfiAddress.AfiAddressReader().readFrom(byteBuf); |
| |
| return new AsAddressBuilder() |
| .withAsNumber(asNumber) |
| .withAddress(address) |
| .build(); |
| } |
| } |
| |
| /** |
| * AS number LCAF address writer class. |
| */ |
| public static class AsLcafAddressWriter |
| implements LispAddressWriter<LispAsLcafAddress> { |
| |
| @Override |
| public void writeTo(ByteBuf byteBuf, LispAsLcafAddress address) |
| throws LispWriterException { |
| |
| int lcafIndex = byteBuf.writerIndex(); |
| LispLcafAddress.serializeCommon(byteBuf, address); |
| |
| byteBuf.writeInt(address.getAsNumber()); |
| |
| new LispAfiAddress.AfiAddressWriter().writeTo(byteBuf, address.getAddress()); |
| |
| LispLcafAddress.updateLength(lcafIndex, byteBuf); |
| } |
| } |
| } |