| /* |
| * 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.PiMeterId; |
| import org.onosproject.net.pi.model.PiPipeconf; |
| import org.onosproject.net.pi.runtime.PiMeterBand; |
| import org.onosproject.net.pi.runtime.PiMeterCellConfig; |
| import org.onosproject.net.pi.runtime.PiMeterCellHandle; |
| import org.onosproject.net.pi.runtime.PiMeterCellId; |
| import org.onosproject.p4runtime.ctl.utils.P4InfoBrowser; |
| import p4.v1.P4RuntimeOuterClass; |
| |
| /** |
| * Codec for P4Runtime MeterEntry. |
| */ |
| public final class MeterEntryCodec |
| extends AbstractEntityCodec<PiMeterCellConfig, PiMeterCellHandle, |
| P4RuntimeOuterClass.MeterEntry, Object> { |
| |
| static P4RuntimeOuterClass.MeterConfig getP4Config(PiMeterCellConfig piConfig) |
| throws CodecException { |
| if (piConfig.meterBands().size() != 2) { |
| throw new CodecException("Number of meter bands should be 2"); |
| } |
| final PiMeterBand[] bands = piConfig.meterBands().toArray(new PiMeterBand[0]); |
| long cir, cburst, pir, pburst; |
| // The band with bigger burst is peak if rate of them is equal. |
| if (bands[0].rate() > bands[1].rate() || |
| (bands[0].rate() == bands[1].rate() && |
| bands[0].burst() >= bands[1].burst())) { |
| cir = bands[1].rate(); |
| cburst = bands[1].burst(); |
| pir = bands[0].rate(); |
| pburst = bands[0].burst(); |
| } else { |
| cir = bands[0].rate(); |
| cburst = bands[0].burst(); |
| pir = bands[1].rate(); |
| pburst = bands[1].burst(); |
| } |
| return P4RuntimeOuterClass.MeterConfig.newBuilder() |
| .setCir(cir) |
| .setCburst(cburst) |
| .setPir(pir) |
| .setPburst(pburst) |
| .build(); |
| } |
| |
| @Override |
| protected P4RuntimeOuterClass.MeterEntry encode( |
| PiMeterCellConfig piEntity, Object ignored, PiPipeconf pipeconf, |
| P4InfoBrowser browser) |
| throws P4InfoBrowser.NotFoundException, CodecException { |
| final int meterId = browser.meters().getByName( |
| piEntity.cellId().meterId().id()).getPreamble().getId(); |
| return P4RuntimeOuterClass.MeterEntry.newBuilder() |
| .setMeterId(meterId) |
| .setIndex(P4RuntimeOuterClass.Index.newBuilder() |
| .setIndex(piEntity.cellId().index()).build()) |
| .setConfig(getP4Config(piEntity)) |
| .build(); |
| } |
| |
| @Override |
| protected P4RuntimeOuterClass.MeterEntry encodeKey( |
| PiMeterCellHandle handle, Object metadata, PiPipeconf pipeconf, |
| P4InfoBrowser browser) |
| throws P4InfoBrowser.NotFoundException { |
| return keyMsgBuilder(handle.cellId(), browser).build(); |
| } |
| |
| @Override |
| protected P4RuntimeOuterClass.MeterEntry encodeKey( |
| PiMeterCellConfig piEntity, Object metadata, PiPipeconf pipeconf, |
| P4InfoBrowser browser) |
| throws P4InfoBrowser.NotFoundException { |
| return keyMsgBuilder(piEntity.cellId(), browser).build(); |
| } |
| |
| private P4RuntimeOuterClass.MeterEntry.Builder keyMsgBuilder( |
| PiMeterCellId cellId, P4InfoBrowser browser) |
| throws P4InfoBrowser.NotFoundException { |
| final int meterId = browser.meters().getByName( |
| cellId.meterId().id()).getPreamble().getId(); |
| return P4RuntimeOuterClass.MeterEntry.newBuilder() |
| .setMeterId(meterId) |
| .setIndex(P4RuntimeOuterClass.Index.newBuilder() |
| .setIndex(cellId.index()).build()); |
| } |
| |
| @Override |
| protected PiMeterCellConfig decode( |
| P4RuntimeOuterClass.MeterEntry message, Object ignored, |
| PiPipeconf pipeconf, P4InfoBrowser browser) |
| throws P4InfoBrowser.NotFoundException { |
| final String meterName = browser.meters() |
| .getById(message.getMeterId()) |
| .getPreamble() |
| .getName(); |
| return PiMeterCellConfig.builder() |
| .withMeterCellId(PiMeterCellId.ofIndirect( |
| PiMeterId.of(meterName), message.getIndex().getIndex())) |
| .withMeterBand(new PiMeterBand(message.getConfig().getCir(), |
| message.getConfig().getCburst())) |
| .withMeterBand(new PiMeterBand(message.getConfig().getPir(), |
| message.getConfig().getPburst())) |
| .build(); |
| } |
| } |