openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/statistics/services/compatibility/FlowStatisticsToNotificationTransformer.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.base.Preconditions;
  12 import java.util.ArrayList;
  13 import java.util.List;
  14 import java.util.Optional;
  15 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
  16 import org.opendaylight.openflowplugin.api.openflow.md.util.OpenflowVersion;
  17 import org.opendaylight.openflowplugin.extension.api.path.MatchPath;
  18 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
  19 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.data.FlowStatsResponseConvertorData;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdateBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev150304.TransactionId;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartType;
  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.MultipartReplyFlowCase;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.flow._case.MultipartReplyFlow;
  28
  29 /**
  30  * Pulled out flow stats to notification transformation.
  31  */
  32 public final class FlowStatisticsToNotificationTransformer {
  33
  34     private FlowStatisticsToNotificationTransformer() {
  35         // Hide implicit constructor
  36     }
  37
  38     /**
  39      * Transform to notification.
  40      *
  41      * @param mpResult      raw multipart response from device
  42      * @param deviceInfo    device state
  43      * @param ofVersion     device version
  44      * @param emulatedTxId  emulated transaction Id
  45      * @param convertorExecutor convertor executor
  46      * @return notification containing flow stats
  47      */
  48     public static FlowsStatisticsUpdate transformToNotification(final List<MultipartReply> mpResult,
  49                                                                 final DeviceInfo deviceInfo,
  50                                                                 final OpenflowVersion ofVersion,
  51                                                                 final TransactionId emulatedTxId,
  52                                                                 final ConvertorExecutor convertorExecutor) {
  53         final FlowStatsResponseConvertorData data = new FlowStatsResponseConvertorData(ofVersion.getVersion());
  54         data.setDatapathId(deviceInfo.getDatapathId());
  55         data.setMatchPath(MatchPath.FLOWS_STATISTICS_UPDATE_MATCH);
  56         final FlowsStatisticsUpdateBuilder notification = new FlowsStatisticsUpdateBuilder();
  57         final List<FlowAndStatisticsMapList> statsList = new ArrayList<>();
  58         notification.setId(deviceInfo.getNodeId());
  59         notification.setFlowAndStatisticsMapList(statsList);
  60         notification.setMoreReplies(Boolean.FALSE);
  61         notification.setTransactionId(emulatedTxId);
  62
  63         for (MultipartReply mpRawReply : mpResult) {
  64             Preconditions.checkArgument(MultipartType.OFPMPFLOW.equals(mpRawReply.getType()));
  65
  66             MultipartReplyFlowCase caseBody = (MultipartReplyFlowCase) mpRawReply.getMultipartReplyBody();
  67             MultipartReplyFlow replyBody = caseBody.getMultipartReplyFlow();
  68             final Optional<List<FlowAndStatisticsMapList>> outStatsItem =
  69                     convertorExecutor.convert(replyBody.getFlowStats(), data);
  70
  71
  72             outStatsItem.ifPresent(statsList::addAll);
  73         }
  74
  75         return notification.build();
  76     }
  77 }