| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * 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.roadm; |
| |
| import org.onosproject.net.OchSignal; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.criteria.Criterion; |
| import org.onosproject.net.flow.criteria.OchSignalCriterion; |
| import org.onosproject.net.flow.criteria.PortCriterion; |
| import org.onosproject.net.flow.instructions.Instruction; |
| import org.onosproject.net.flow.instructions.Instructions; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.util.List; |
| |
| /** |
| * Representation of an internal ROADM connection. |
| */ |
| public final class ChannelData { |
| private PortNumber inPort; |
| private PortNumber outPort; |
| private OchSignal ochSignal; |
| |
| private ChannelData(PortNumber inPort, PortNumber outPort, OchSignal ochSignal) { |
| this.inPort = inPort; |
| this.outPort = outPort; |
| this.ochSignal = ochSignal; |
| } |
| |
| /** |
| * Returns a ChannelData representation from a flow rule. The rule must contain |
| * a Criterion.Type.IN_PORT selector, Criterion.Type.OCH_SIGID selector, and |
| * Instruction.Type.OUTPUT instruction. |
| * |
| * @param rule the flow rule representing the connection |
| * @return ChannelData representation of the connection |
| */ |
| public static ChannelData fromFlow(FlowRule rule) { |
| checkNotNull(rule); |
| |
| Criterion in = rule.selector().getCriterion(Criterion.Type.IN_PORT); |
| checkNotNull(in); |
| PortNumber inPort = ((PortCriterion) in).port(); |
| |
| Criterion och = rule.selector().getCriterion(Criterion.Type.OCH_SIGID); |
| OchSignal ochSignal = och == null ? null : ((OchSignalCriterion) och).lambda(); |
| |
| PortNumber outPort = null; |
| List<Instruction> instructions = rule.treatment().allInstructions(); |
| for (Instruction ins : instructions) { |
| if (ins.type() == Instruction.Type.OUTPUT) { |
| outPort = ((Instructions.OutputInstruction) ins).port(); |
| } |
| } |
| checkNotNull(outPort); |
| |
| return new ChannelData(inPort, outPort, ochSignal); |
| } |
| |
| /** |
| * Returns the input port. |
| * |
| * @return input port |
| */ |
| public PortNumber inPort() { |
| return inPort; |
| } |
| |
| /** |
| * Returns the output port. |
| * |
| * @return output port |
| */ |
| public PortNumber outPort() { |
| return outPort; |
| } |
| |
| /** |
| * Returns the channel signal. |
| * |
| * @return channel signal |
| */ |
| public OchSignal ochSignal() { |
| return ochSignal; |
| } |
| } |