openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/statistics/services/compatibility/MeterStatisticsToNotificationTransformer.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.openflowplugin.impl.statistics.services.compatibility;
  10
  11 import com.google.common.collect.Lists;
  12 import java.util.ArrayList;
  13 import java.util.HashSet;
  14 import java.util.List;
  15 import java.util.Optional;
  16 import java.util.Set;
  17 import java.util.stream.Collectors;
  18 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
  19 import org.opendaylight.openflowplugin.api.openflow.md.util.OpenflowVersion;
  20 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
  21 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.data.VersionConvertorData;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev150304.TransactionId;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.MeterStatisticsUpdated;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.MeterStatisticsUpdatedBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.meter.statistics.reply.MeterStats;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReply;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyMeterCase;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter._case.MultipartReplyMeter;
  29
  30 /**
  31  * Pulled out meter stats to notification transformation.
  32  */
  33 public final class MeterStatisticsToNotificationTransformer {
  34
  35     private MeterStatisticsToNotificationTransformer() {
  36         // Hide implicit constructor
  37     }
  38
  39     /**
  40      * Transform statistics to notification.
  41      *
  42      * @param mpReplyList   raw multipart response from device
  43      * @param deviceInfo    device state
  44      * @param ofVersion     device version
  45      * @param emulatedTxId  emulated transaction Id
  46      * @param convertorExecutor convertor executor
  47      * @return notification containing flow stats
  48      */
  49     public static MeterStatisticsUpdated transformToNotification(final List<MultipartReply> mpReplyList,
  50                                                                  final DeviceInfo deviceInfo,
  51                                                                  final OpenflowVersion ofVersion,
  52                                                                  final TransactionId emulatedTxId,
  53                                                                  final ConvertorExecutor convertorExecutor) {
  54
  55         VersionConvertorData data = new VersionConvertorData(deviceInfo.getVersion());
  56         MeterStatisticsUpdatedBuilder notification = new MeterStatisticsUpdatedBuilder();
  57         notification.setId(deviceInfo.getNodeId());
  58         notification.setMoreReplies(Boolean.FALSE);
  59         notification.setTransactionId(emulatedTxId);
  60
  61         notification.setMeterStats(new ArrayList<>());
  62         for (MultipartReply mpReply : mpReplyList) {
  63             MultipartReplyMeterCase caseBody = (MultipartReplyMeterCase) mpReply.getMultipartReplyBody();
  64             MultipartReplyMeter replyBody = caseBody.getMultipartReplyMeter();
  65             final Optional<List<MeterStats>> meterStatsList =
  66                     convertorExecutor.convert(replyBody.getMeterStats(), data);
  67
  68             meterStatsList.ifPresent(meterStats -> {
  69                 if (notification.getMeterStats() == null) {
  70                     notification.setMeterStats(Lists.newArrayList(meterStats));
  71                 } else {
  72                     Set<MeterStats> stats = new HashSet<>(notification.getMeterStats().values());
  73                     stats.addAll(meterStats);
  74                     notification.setMeterStats(stats.stream().collect(Collectors.toList()));
  75                 }
  76             });
  77         }
  78
  79         return notification.build();
  80     }
  81 }