| /* |
| * 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.isis.io.isispacket.tlv.subtlv; |
| |
| import com.google.common.base.MoreObjects; |
| import com.google.common.primitives.Bytes; |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.isis.io.isispacket.tlv.TlvHeader; |
| import org.onosproject.isis.io.util.IsisUtil; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Representation of an unreserved band width TE value. |
| */ |
| public class UnreservedBandwidth extends TlvHeader implements TrafficEngineeringSubTlv { |
| private List<Float> unReservedBandwidth = new ArrayList<>(); |
| |
| /** |
| * Creates an instance of unreserved band width. |
| * |
| * @param header tlv header instance |
| */ |
| public UnreservedBandwidth(TlvHeader header) { |
| this.setTlvType(header.tlvType()); |
| this.setTlvLength(header.tlvLength()); |
| } |
| |
| /** |
| * Adds value of un reserved bandwidth . |
| * |
| * @param unreservedBandwidth value of un reserved bandwidth |
| */ |
| public void addUnReservedBandwidth(float unreservedBandwidth) { |
| this.unReservedBandwidth.add(unreservedBandwidth); |
| } |
| |
| /** |
| * Returns list of un reserved bandwidth . |
| * |
| * @return List of un reserved bandwidth |
| */ |
| public List<Float> unReservedBandwidthValue() { |
| return this.unReservedBandwidth; |
| } |
| |
| /** |
| * Reads bytes from channel buffer . |
| * |
| * @param channelBuffer channel buffer instance |
| */ |
| public void readFrom(ChannelBuffer channelBuffer) { |
| while (channelBuffer.readableBytes() >= IsisUtil.FOUR_BYTES) { |
| int maxReversibleBandwidth = channelBuffer.readInt(); |
| this.addUnReservedBandwidth(Float.intBitsToFloat(maxReversibleBandwidth)); |
| } |
| } |
| |
| /** |
| * Returns instance as byte array. |
| * |
| * @return instance as byte array |
| */ |
| public byte[] asBytes() { |
| byte[] linkSubType = null; |
| |
| byte[] linkSubTlvHeader = tlvHeaderAsByteArray(); |
| byte[] linkSubTlvBody = tlvBodyAsBytes(); |
| linkSubType = Bytes.concat(linkSubTlvHeader, linkSubTlvBody); |
| |
| return linkSubType; |
| } |
| |
| /** |
| * Returns unreserved bandwidth as byte array. |
| * |
| * @return unreserved bandwidth as byte array |
| */ |
| public byte[] tlvBodyAsBytes() { |
| List<Byte> linkSubTypeBody = new ArrayList<>(); |
| if (this.unReservedBandwidth.size() < 8) { |
| int size = IsisUtil.EIGHT_BYTES - this.unReservedBandwidth.size(); |
| for (int i = 0; i < size; i++) { |
| linkSubTypeBody.addAll(Bytes.asList(IsisUtil.convertToFourBytes(IsisUtil.INITIAL_BANDWIDTH))); |
| } |
| } |
| for (Float unreservedBandwidth : this.unReservedBandwidth) { |
| int unresBandwidth = Float.floatToIntBits(unreservedBandwidth); |
| linkSubTypeBody.addAll(Bytes.asList(IsisUtil.convertToFourBytes(unresBandwidth))); |
| } |
| |
| return Bytes.toArray(linkSubTypeBody); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .omitNullValues() |
| .add("unReservedBandwidth", unReservedBandwidth) |
| .toString(); |
| } |
| } |