| /* |
| * 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.bgpio.types; |
| |
| import com.google.common.base.MoreObjects; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.bgpio.exceptions.BgpParseException; |
| import org.onosproject.bgpio.util.Validation; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Objects; |
| |
| /** |
| * Provides implementation of BGP wide community integer subtlv. |
| */ |
| public class WideCommunityInteger implements BgpValueType { |
| public static final short TYPE = 4; |
| private List<Integer> integer; |
| |
| /** |
| * Creates an instance of wide community integer subtlv. |
| * |
| * @param integer integer |
| */ |
| public WideCommunityInteger(List<Integer> integer) { |
| this.integer = integer; |
| } |
| |
| /** |
| * Returns object of this class with specified values. |
| * |
| * @param integer wide community subtlv integer |
| * @return object of WideCommunityInteger |
| */ |
| public static WideCommunityInteger of(List<Integer> integer) { |
| return new WideCommunityInteger(integer); |
| } |
| |
| /** |
| * Returns wide community subtlv integer. |
| * |
| * @return wide community subtlv integer |
| */ |
| public List<Integer> integer() { |
| return integer; |
| } |
| |
| /** |
| * Sets wide community subtlv integer. |
| * |
| * @param integer wide community subtlv integer |
| */ |
| public void setInteger(List<Integer> integer) { |
| this.integer = integer; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(integer); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj == null) { |
| return false; |
| } |
| |
| if (obj instanceof WideCommunityInteger) { |
| WideCommunityInteger other = (WideCommunityInteger) obj; |
| return Objects.equals(integer, other.integer); |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer c) { |
| int iLenStartIndex = c.writerIndex(); |
| |
| Iterator<Integer> listIterator = integer.iterator(); |
| c.writeByte(TYPE); |
| |
| int iLengthIndex = c.writerIndex(); |
| c.writeShort(0); |
| |
| while (listIterator.hasNext()) { |
| Integer integer = listIterator.next(); |
| if (integer instanceof Integer) { |
| c.writeInt(integer); |
| } |
| } |
| |
| int length = c.writerIndex() - iLengthIndex; |
| c.setShort(iLengthIndex, (short) (length - 2)); |
| |
| return c.writerIndex() - iLenStartIndex; |
| } |
| |
| /** |
| * Reads the channel buffer and returns object of WideCommunityInteger. |
| * |
| * @param c ChannelBuffer |
| * @return object of WideCommunityInteger |
| * @throws BgpParseException on read error |
| */ |
| public static WideCommunityInteger read(ChannelBuffer c) throws BgpParseException { |
| |
| List<Integer> integer = new ArrayList<>(); |
| short length; |
| |
| if (c.readableBytes() < 2) { |
| Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, |
| c.readableBytes()); |
| } |
| |
| length = c.readShort(); |
| if (length == 0) { |
| return new WideCommunityInteger(integer); |
| } |
| |
| if (c.readableBytes() < length) { |
| Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, |
| c.readableBytes()); |
| } |
| |
| while (c.readableBytes() > 0) { |
| if (c.readableBytes() < 4) { |
| Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, |
| c.readableBytes()); |
| } |
| integer.add(c.readInt()); |
| } |
| |
| return new WideCommunityInteger(integer); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .omitNullValues() |
| .add("integer", integer) |
| .toString(); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| |
| @Override |
| public short getType() { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| } |