| /* |
| * Copyright 2015-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.provider.of.device.impl; |
| |
| import org.onosproject.net.OduSignalType; |
| |
| import com.google.common.collect.BiMap; |
| import com.google.common.collect.EnumHashBiMap; |
| |
| /** |
| * Collection of helper methods to convert protocol agnostic models to values used in OpenFlow spec. |
| */ |
| final class OpenFlowDeviceValueMapper { |
| |
| // prohibit instantiation |
| private OpenFlowDeviceValueMapper() {} |
| |
| private static final BiMap<OduSignalType, Byte> ODU_SIGNAL_TYPES = EnumHashBiMap.create(OduSignalType.class); |
| static { |
| // See ONF "Optical Transport Protocol Extensions Version 1.0" for the following values |
| ODU_SIGNAL_TYPES.put(OduSignalType.ODU1, (byte) 1); // OFPODUT_ODU1 of enum ofp_odu_signal_type |
| ODU_SIGNAL_TYPES.put(OduSignalType.ODU2, (byte) 2); // OFPODUT_ODU2 of enum ofp_odu_signal_type |
| ODU_SIGNAL_TYPES.put(OduSignalType.ODU3, (byte) 3); // OFPODUT_ODU3 of enum ofp_odu_signal_type |
| ODU_SIGNAL_TYPES.put(OduSignalType.ODU4, (byte) 4); // OFPODUT_ODU4 of enum ofp_odu_signal_type |
| ODU_SIGNAL_TYPES.put(OduSignalType.ODU0, (byte) 10); // OFPODUT_ODU0 of enum ofp_odu_signal_type |
| ODU_SIGNAL_TYPES.put(OduSignalType.ODU2e, (byte) 11); // OFPODUT_ODU2E of enum ofp_odu_signal_type |
| } |
| |
| /** |
| * Looks up the specified input value to the corresponding value with the specified map. |
| * |
| * @param map bidirectional mapping |
| * @param input input value |
| * @param cls class of output value |
| * @param <I> type of input value |
| * @param <O> type of output value |
| * @return the corresponding value stored in the specified map |
| */ |
| private static <I, O> O lookup(BiMap<I, O> map, I input, Class<O> cls) { |
| if (!map.containsKey(input)) { |
| throw new RuntimeException( |
| String.format("No mapping found for %s when converting to %s", input, cls.getName())); |
| } |
| |
| return map.get(input); |
| } |
| |
| /** |
| * Looks up the the corresponding {@link OduSignalType} instance |
| * from the specified byte value for ODU signal type defined in |
| * ONF "Optical Transport Protocol Extensions Version 1.0". |
| * |
| * @param signalType byte value as ODU (Optical channel Data Unit) signal type defined the spec |
| * @return the corresponding OchSignalType instance |
| */ |
| static OduSignalType lookupOduSignalType(byte signalType) { |
| return lookup(ODU_SIGNAL_TYPES.inverse(), signalType, OduSignalType.class); |
| } |
| |
| } |