| /* |
| * Copyright 2017-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.drivers.stratum; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.onosproject.drivers.p4runtime.AbstractP4RuntimePipelineProgrammable; |
| import org.onosproject.net.behaviour.PiPipelineProgrammable; |
| import org.onosproject.net.pi.model.PiPipeconf; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.Optional; |
| |
| import static org.onosproject.net.pi.model.PiPipeconf.ExtensionType.STRATUM_FPM_BIN; |
| |
| /** |
| * Implementation of the PiPipelineProgrammable behaviour for a Stratum |
| * Fixed-Pipeline Model (FPM) target. |
| */ |
| public class FpmPipelineProgrammable |
| extends AbstractP4RuntimePipelineProgrammable |
| implements PiPipelineProgrammable { |
| |
| @Override |
| public Optional<PiPipeconf> getDefaultPipeconf() { |
| return Optional.empty(); |
| } |
| |
| @Override |
| public ByteBuffer createDeviceDataBuffer(PiPipeconf pipeconf) { |
| if (pipeconf.extension(STRATUM_FPM_BIN).isEmpty()) { |
| log.warn("Missing extension {} in pipeconf {}", |
| STRATUM_FPM_BIN, pipeconf.id()); |
| return null; |
| } |
| try { |
| return ByteBuffer.wrap(IOUtils.toByteArray( |
| pipeconf.extension(STRATUM_FPM_BIN).get())); |
| } catch (IOException e) { |
| log.warn("Unable to read {} from pipeconf {}", |
| STRATUM_FPM_BIN, pipeconf.id()); |
| return null; |
| } |
| } |
| } |