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 org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  15 import org.opendaylight.openflowplugin.api.openflow.md.util.OpenflowVersion;
  16 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.FlowStatsResponseConvertor;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdate;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.FlowsStatisticsUpdateBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.transaction.rev150304.TransactionId;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartType;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReply;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyFlowCase;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.flow._case.MultipartReplyFlow;
  25
  26 /**
  27  * pulled out flow stats to notification transformation
  28  */
  29 public class FlowStatisticsToNotificationTransformer {
  30
  31     private static FlowStatsResponseConvertor flowStatsConvertor = new FlowStatsResponseConvertor();
  32
  33     /**
  34      * @param mpResult      raw multipart response from device
  35      * @param deviceContext device context
  36      * @param ofVersion device version
  37      * @param emulatedTxId
  38      * @return notification containing flow stats
  39      */
  40     public static FlowsStatisticsUpdate transformToNotification(final List<MultipartReply> mpResult,
  41                                                                 final DeviceContext deviceContext,
  42                                                                 final OpenflowVersion ofVersion,
  43                                                                 final TransactionId emulatedTxId) {
  44         final FlowsStatisticsUpdateBuilder notification = new FlowsStatisticsUpdateBuilder();
  45         final List<FlowAndStatisticsMapList> statsList = new ArrayList<>();
  46         notification.setFlowAndStatisticsMapList(statsList);
  47         notification.setMoreReplies(Boolean.FALSE);
  48         notification.setTransactionId(emulatedTxId);
  49
  50         for (MultipartReply mpRawReply : mpResult) {
  51             Preconditions.checkArgument(MultipartType.OFPMPFLOW.equals(mpRawReply.getType()));
  52
  53             MultipartReplyFlowCase caseBody = (MultipartReplyFlowCase) mpRawReply.getMultipartReplyBody();
  54             MultipartReplyFlow replyBody = caseBody.getMultipartReplyFlow();
  55             List<FlowAndStatisticsMapList> outStatsItem = flowStatsConvertor.toSALFlowStatsList(
  56                     replyBody.getFlowStats(),
  57                     deviceContext.getDeviceState().getFeatures().getDatapathId(),
  58                     ofVersion);
  59             statsList.addAll(outStatsItem);
  60         }
  61
  62         return notification.build();
  63     }
  64 }