| /* |
| * 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; |
| |
| /** |
| * Instance ID type LCAF address class. |
| * <p> |
| * Instance ID type is defined in draft-ietf-lisp-lcaf-22 |
| * https://tools.ietf.org/html/draft-ietf-lisp-lcaf-22#page-8 |
| * |
| * <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 = 2 | IID mask-len | Length | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | Instance ID | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * | AFI = x | Address ... | |
| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| * }</pre> |
| */ |
| public final class LispSegmentLcafAddress extends LispLcafAddress { |
| |
| private final LispAfiAddress address; |
| private final int instanceId; |
| |
| /** |
| * Initializes segment type LCAF address. |
| * |
| * @param idMaskLength Id mask length |
| * @param instanceId instance id |
| * @param address address |
| */ |
| private LispSegmentLcafAddress(byte idMaskLength, int instanceId, |
| LispAfiAddress address) { |
| super(LispCanonicalAddressFormatEnum.SEGMENT, idMaskLength); |
| this.address = address; |
| this.instanceId = instanceId; |
| } |
| |
| /** |
| * Initializes segment type LCAF address. |
| * |
| * @param reserved1 reserved1 |
| * @param idMaskLength ID mask length |
| * @param flag flag |
| * @param length length |
| * @param instanceId instance id |
| * @param address address |
| */ |
| private LispSegmentLcafAddress(byte reserved1, byte idMaskLength, byte flag, |
| short length, int instanceId, |
| LispAfiAddress address) { |
| super(LispCanonicalAddressFormatEnum.SEGMENT, reserved1, |
| idMaskLength, flag, length); |
| this.address = address; |
| this.instanceId = instanceId; |
| } |
| |
| /** |
| * Obtains address. |
| * |
| * @return address |
| */ |
| public LispAfiAddress getAddress() { |
| return address; |
| } |
| |
| /** |
| * Obtains instance id. |
| * |
| * @return instance id |
| */ |
| public int getInstanceId() { |
| return instanceId; |
| } |
| |
| /** |
| * Obtains id mask length. |
| * |
| * @return id mask length |
| */ |
| public byte getIdMaskLength() { |
| return getReserved2(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(address, instanceId, getReserved2()); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj instanceof LispSegmentLcafAddress) { |
| final LispSegmentLcafAddress other = (LispSegmentLcafAddress) obj; |
| return Objects.equals(this.address, other.address) && |
| Objects.equals(this.instanceId, other.instanceId) && |
| Objects.equals(this.getReserved2(), other.getReserved2()); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this) |
| .add("address", address) |
| .add("instanceId", instanceId) |
| .add("idMaskLength", getReserved2()) |
| .toString(); |
| } |
| |
| public static final class SegmentAddressBuilder |
| extends LcafAddressBuilder<SegmentAddressBuilder> { |
| private byte idMaskLength; |
| private LispAfiAddress address; |
| private int instanceId; |
| |
| /** |
| * Sets identifier mask length. |
| * |
| * @param idMaskLength identifier mask length |
| * @return SegmentAddressBuilder object |
| */ |
| public SegmentAddressBuilder withIdMaskLength(byte idMaskLength) { |
| this.idMaskLength = idMaskLength; |
| return this; |
| } |
| |
| /** |
| * Sets instance identifer. |
| * |
| * @param instanceId instance identifier |
| * @return SegmentAddressBuilder object |
| */ |
| public SegmentAddressBuilder withInstanceId(int instanceId) { |
| this.instanceId = instanceId; |
| return this; |
| } |
| |
| /** |
| * Sets AFI address. |
| * |
| * @param address AFI address |
| * @return SegmentAddressBuilder object |
| */ |
| public SegmentAddressBuilder withAddress(LispAfiAddress address) { |
| this.address = address; |
| return this; |
| } |
| |
| /** |
| * Builds LispSegmentLcafAddress instance. |
| * |
| * @return LispSegmentLcafAddress instance |
| */ |
| public LispSegmentLcafAddress build() { |
| |
| checkNotNull(address, "Must specify an address"); |
| |
| return new LispSegmentLcafAddress(reserved1, idMaskLength, flag, |
| length, instanceId, address); |
| } |
| } |
| |
| /** |
| * Segment LCAF address reader class. |
| */ |
| public static class SegmentLcafAddressReader |
| implements LispAddressReader<LispSegmentLcafAddress> { |
| |
| @Override |
| public LispSegmentLcafAddress readFrom(ByteBuf byteBuf) |
| throws LispParseError, LispReaderException { |
| |
| LispLcafAddress lcafAddress = LispLcafAddress.deserializeCommon(byteBuf); |
| |
| byte idMaskLength = lcafAddress.getReserved2(); |
| |
| int instanceId = (int) byteBuf.readUnsignedInt(); |
| LispAfiAddress address = new AfiAddressReader().readFrom(byteBuf); |
| |
| return new SegmentAddressBuilder() |
| .withIdMaskLength(idMaskLength) |
| .withInstanceId(instanceId) |
| .withAddress(address) |
| .build(); |
| } |
| } |
| |
| /** |
| * Segment LCAF address writer class. |
| */ |
| public static class SegmentLcafAddressWriter |
| implements LispAddressWriter<LispSegmentLcafAddress> { |
| |
| @Override |
| public void writeTo(ByteBuf byteBuf, LispSegmentLcafAddress address) |
| throws LispWriterException { |
| |
| int lcafIndex = byteBuf.writerIndex(); |
| LispLcafAddress.serializeCommon(byteBuf, address); |
| |
| byteBuf.writeInt(address.getInstanceId()); |
| |
| new LispAfiAddress.AfiAddressWriter().writeTo(byteBuf, address.getAddress()); |
| |
| LispLcafAddress.updateLength(lcafIndex, byteBuf); |
| } |
| } |
| } |