openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/statistics/services/compatibility/GroupStatisticsToNotificationTransformer.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.openflow.md.core.sal.convertor.ConvertorExecutor;
  20 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.data.VersionConvertorData;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev150304.TransactionId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupStatisticsUpdated;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.GroupStatisticsUpdatedBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.reply.GroupStats;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReply;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyGroupCase;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.group._case.MultipartReplyGroup;
  28
  29 /**
  30  * Pulled out group stats to notification transformation.
  31  */
  32 public final class GroupStatisticsToNotificationTransformer {
  33
  34     private GroupStatisticsToNotificationTransformer() {
  35         // Hide implicit constructor
  36     }
  37
  38     /**
  39      * Transform statistics to notification.
  40      * @param mpReplyList   raw multipart response from device
  41      * @param deviceInfo   device state
  42      * @param emulatedTxId emulated transaction id
  43      * @param convertorExecutor convertor executor
  44      * @return notification containing flow stats
  45      */
  46     public static GroupStatisticsUpdated transformToNotification(final List<MultipartReply> mpReplyList,
  47                                                                  final DeviceInfo deviceInfo,
  48                                                                  final TransactionId emulatedTxId,
  49                                                                  final ConvertorExecutor convertorExecutor) {
  50
  51         VersionConvertorData data = new VersionConvertorData(deviceInfo.getVersion());
  52         GroupStatisticsUpdatedBuilder notification = new GroupStatisticsUpdatedBuilder();
  53         notification.setId(deviceInfo.getNodeId());
  54         notification.setMoreReplies(Boolean.FALSE);
  55         notification.setTransactionId(emulatedTxId);
  56
  57         notification.setGroupStats(new ArrayList<>());
  58
  59         for (MultipartReply mpReply : mpReplyList) {
  60             MultipartReplyGroupCase caseBody = (MultipartReplyGroupCase) mpReply.getMultipartReplyBody();
  61             MultipartReplyGroup replyBody = caseBody.getMultipartReplyGroup();
  62             final Optional<List<GroupStats>> groupStatsList = convertorExecutor.convert(
  63                     replyBody.getGroupStats(), data);
  64
  65             groupStatsList.ifPresent(groupStats -> {
  66                 if (notification.getGroupStats() == null) {
  67                     List<GroupStats> stats = Lists.newArrayList(groupStats);
  68                     notification.setGroupStats(stats);
  69                 } else {
  70                     Set<GroupStats> stats = new HashSet<>(notification.getGroupStats().values());
  71                     stats.addAll(groupStats);
  72                     notification.setGroupStats(stats.stream().collect(Collectors.toList()));
  73                 }
  74             });
  75         }
  76         return notification.build();
  77     }
  78 }