| /* |
| * 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.ospf.protocol.lsa.types; |
| |
| import com.google.common.base.MoreObjects; |
| import com.google.common.primitives.Bytes; |
| |
| import java.util.Arrays; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.ospf.controller.OspfLsaType; |
| import org.onosproject.ospf.protocol.lsa.OpaqueLsaHeader; |
| |
| /** |
| * Representation of an Opaque LSA of type AS (11). |
| */ |
| public class OpaqueLsa11 extends OpaqueLsaHeader { |
| /* |
| 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 |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | LS age | Options | 9, 10 or 11 | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | Opaque Type | Opaque ID | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | Advertising Router | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | LS Sequence Number | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | LS checksum | Length | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | | |
| + + |
| | Opaque Information | |
| + + |
| | ... | |
| */ |
| private byte[] opaqueInfo = null; |
| |
| /** |
| * Creates an instance of Opaque type 11 LSA. |
| * |
| * @param lsaHeader LSA header instance |
| */ |
| public OpaqueLsa11(OpaqueLsaHeader lsaHeader) { |
| populateHeader(lsaHeader); |
| } |
| |
| /** |
| * Reads from channel buffer and populate this. |
| * |
| * @param channelBuffer channelBuffer instance. |
| */ |
| public void readFrom(ChannelBuffer channelBuffer) { |
| int length = channelBuffer.readableBytes(); |
| opaqueInfo = new byte[length]; |
| channelBuffer.readBytes(opaqueInfo, 0, length); |
| } |
| |
| /** |
| * Returns instance as bytes. |
| * |
| * @return instance as bytes |
| */ |
| public byte[] asBytes() { |
| byte[] lsaMessage = null; |
| |
| byte[] lsaHeader = getOpaqueLsaHeaderAsByteArray(); |
| byte[] lsaBody = getLsaBodyAsByteArray(); |
| lsaMessage = Bytes.concat(lsaHeader, lsaBody); |
| |
| return lsaMessage; |
| } |
| |
| /** |
| * Get the LSA body as byte array. |
| * |
| * @return LSA body as byte array |
| */ |
| public byte[] getLsaBodyAsByteArray() { |
| return opaqueInfo; |
| } |
| |
| @Override |
| public OspfLsaType getOspfLsaType() { |
| return OspfLsaType.AS_OPAQUE_LSA; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| OpaqueLsa11 that = (OpaqueLsa11) o; |
| return Arrays.equals(opaqueInfo, that.opaqueInfo); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Arrays.hashCode(opaqueInfo); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .omitNullValues() |
| .add("opaqueInfo", opaqueInfo) |
| .toString(); |
| } |
| } |