| /* |
| * Copyright 2015 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.attr; |
| |
| import java.util.Objects; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.bgpio.exceptions.BgpParseException; |
| import org.onosproject.bgpio.types.BgpErrorType; |
| import org.onosproject.bgpio.types.BgpValueType; |
| import org.onosproject.bgpio.util.Constants; |
| import org.onosproject.bgpio.util.Validation; |
| |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * Implements BGP link protection type attribute. |
| */ |
| public final class BgpLinkAttrProtectionType implements BgpValueType { |
| public static final int ATTRLINK_PROTECTIONTYPE = 1093; |
| public static final int LINK_PROTECTION_LEN = 2; |
| |
| private byte linkProtectionType; |
| |
| /** |
| * Enum to provide Link protection types. |
| */ |
| public enum ProtectionType { |
| EXTRA_TRAFFIC(1), UNPROTECTED(2), SHARED(4), DEDICATED_ONE_ISTO_ONE(8), |
| DEDICATED_ONE_PLUS_ONE(0x10), ENHANCED(0x20), RESERVED(0x40); |
| int value; |
| |
| /** |
| * Assign val with the value as the link protection type. |
| * |
| * @param val link protection |
| */ |
| ProtectionType(int val) { |
| value = val; |
| } |
| |
| /** |
| * Returns value of link protection type. |
| * |
| * @return link protection type |
| */ |
| public byte type() { |
| return (byte) value; |
| } |
| } |
| |
| /** |
| * Constructor to initialize the value. |
| * |
| * @param linkProtectionType link protection type |
| */ |
| public BgpLinkAttrProtectionType(byte linkProtectionType) { |
| this.linkProtectionType = linkProtectionType; |
| } |
| |
| /** |
| * Returns object of this class with specified values. |
| * |
| * @param linkProtectionType link protection type |
| * @return object of BgpLinkAttrProtectionType |
| */ |
| public static BgpLinkAttrProtectionType of(byte linkProtectionType) { |
| return new BgpLinkAttrProtectionType(linkProtectionType); |
| } |
| |
| /** |
| * Reads the BGP link attributes protection type. |
| * |
| * @param cb Channel buffer |
| * @return object of type BgpLinkAttrProtectionType |
| * @throws BgpParseException while parsing BgpLinkAttrProtectionType |
| */ |
| public static BgpLinkAttrProtectionType read(ChannelBuffer cb) |
| throws BgpParseException { |
| short lsAttrLength = cb.readShort(); |
| |
| if ((lsAttrLength != LINK_PROTECTION_LEN) || (cb.readableBytes() < lsAttrLength)) { |
| Validation |
| .validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.ATTRIBUTE_LENGTH_ERROR, lsAttrLength); |
| } |
| |
| byte linkProtectionType = cb.readByte(); |
| byte reserved = cb.readByte(); |
| |
| return BgpLinkAttrProtectionType.of(linkProtectionType); |
| } |
| |
| /** |
| * Returns Link Protection Type. |
| * |
| * @return Link Protection Type |
| * @throws BgpParseException when failed to parse link protection type |
| */ |
| public ProtectionType protectionType() throws BgpParseException { |
| switch (linkProtectionType) { |
| case Constants.EXTRA_TRAFFIC: |
| return ProtectionType.EXTRA_TRAFFIC; |
| case Constants.UNPROTECTED: |
| return ProtectionType.UNPROTECTED; |
| case Constants.SHARED: |
| return ProtectionType.SHARED; |
| case Constants.DEDICATED_ONE_ISTO_ONE: |
| return ProtectionType.DEDICATED_ONE_ISTO_ONE; |
| case Constants.DEDICATED_ONE_PLUS_ONE: |
| return ProtectionType.DEDICATED_ONE_PLUS_ONE; |
| case Constants.ENHANCED: |
| return ProtectionType.ENHANCED; |
| case Constants.RESERVED: |
| return ProtectionType.RESERVED; |
| default: |
| throw new BgpParseException("Got another type " + linkProtectionType); |
| } |
| } |
| |
| @Override |
| public short getType() { |
| return ATTRLINK_PROTECTIONTYPE; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(linkProtectionType); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj instanceof BgpLinkAttrProtectionType) { |
| BgpLinkAttrProtectionType other = (BgpLinkAttrProtectionType) obj; |
| return Objects.equals(linkProtectionType, other.linkProtectionType); |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer cb) { |
| // TODO This will be implemented in the next version |
| return 0; |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("linkProtectionType", linkProtectionType) |
| .toString(); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| } |