| /* |
| * Copyright 2019-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.p4runtime.ctl.codec; |
| |
| import org.onosproject.net.pi.model.PiPacketOperationType; |
| import org.onosproject.net.pi.model.PiPipeconf; |
| import org.onosproject.net.pi.runtime.PiPacketOperation; |
| import org.onosproject.p4runtime.ctl.utils.P4InfoBrowser; |
| import p4.config.v1.P4InfoOuterClass; |
| import p4.v1.P4RuntimeOuterClass; |
| |
| import static org.onlab.util.ImmutableByteSequence.copyFrom; |
| import static org.onosproject.p4runtime.ctl.codec.Codecs.CODECS; |
| |
| /** |
| * Codec for P4Runtime PacketIn. Only decoding is supported, as encoding is not |
| * meaningful in this case (packet-ins are always generated by the server). |
| */ |
| public final class PacketInCodec |
| extends AbstractCodec<PiPacketOperation, |
| P4RuntimeOuterClass.PacketIn, Object> { |
| |
| private static final String PACKET_IN = "packet_in"; |
| |
| @Override |
| protected P4RuntimeOuterClass.PacketIn encode( |
| PiPacketOperation piEntity, Object ignored, PiPipeconf pipeconf, |
| P4InfoBrowser browser) |
| throws CodecException { |
| throw new CodecException("Encoding of packet-in is not supported"); |
| } |
| |
| @Override |
| protected PiPacketOperation decode( |
| P4RuntimeOuterClass.PacketIn message, Object ignored, |
| PiPipeconf pipeconf, P4InfoBrowser browser) |
| throws CodecException, P4InfoBrowser.NotFoundException { |
| final P4InfoOuterClass.Preamble ctrlPktMetaPreamble = browser |
| .controllerPacketMetadatas() |
| .getByName(PACKET_IN) |
| .getPreamble(); |
| return PiPacketOperation.builder() |
| .withType(PiPacketOperationType.PACKET_IN) |
| .withMetadatas(CODECS.packetMetadata().decodeAll( |
| message.getMetadataList(), ctrlPktMetaPreamble, pipeconf)) |
| .withData(copyFrom(message.getPayload().asReadOnlyByteBuffer())) |
| .build(); |
| } |
| } |