opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/TableStatisticsConverter.java

   1 /*
   2  * Copyright (c) 2013 Big Switch Networks, Inc.  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 package org.opendaylight.controller.protocol_plugin.openflow.internal;
   9
  10 import java.util.ArrayList;
  11 import java.util.List;
  12
  13 import org.opendaylight.controller.sal.core.Node;
  14 import org.opendaylight.controller.sal.reader.NodeTableStatistics;
  15 import org.opendaylight.controller.sal.utils.NodeCreator;
  16 import org.openflow.protocol.statistics.OFStatistics;
  17 import org.openflow.protocol.statistics.OFTableStatistics;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 /**
  22  * Converts an openflow list of table statistics in a SAL list of
  23  * NodeTableStatistics objects
  24  */
  25 public class TableStatisticsConverter {
  26     private static final Logger log = LoggerFactory
  27             .getLogger(TableStatisticsConverter.class);
  28
  29     private final long switchId;
  30     private List<OFStatistics> ofStatsList;
  31     private List<NodeTableStatistics> ntStatsList;
  32
  33     public TableStatisticsConverter(long switchId, List<OFStatistics> statsList) {
  34         this.switchId = switchId;
  35         if (statsList == null || statsList.isEmpty()) {
  36             this.ofStatsList = new ArrayList<OFStatistics>(1); // dummy list
  37         } else {
  38             this.ofStatsList = new ArrayList<OFStatistics>(statsList);
  39         }
  40         this.ntStatsList = null;
  41     }
  42
  43     public List<NodeTableStatistics> getNodeTableStatsList() {
  44         if (this.ofStatsList != null && this.ntStatsList == null) {
  45             this.ntStatsList = new ArrayList<NodeTableStatistics>();
  46             OFTableStatistics ofTableStat;
  47             Node node = NodeCreator.createOFNode(switchId);
  48             for (OFStatistics ofStat : this.ofStatsList) {
  49                 ofTableStat = (OFTableStatistics) ofStat;
  50                 NodeTableStatistics ntStat = new NodeTableStatistics();
  51                 ntStat.setNodeTable(TableConverter.toNodeTable(
  52                         ofTableStat.getTableId(), node));
  53                 ntStat.setActiveCount(ofTableStat.getActiveCount());
  54                 ntStat.setLookupCount(ofTableStat.getLookupCount());
  55                 ntStat.setMatchedCount(ofTableStat.getMatchedCount());
  56                 this.ntStatsList.add(ntStat);
  57             }
  58         }
  59         log.trace("OFStatistics: {} NodeTableStatistics: {}", ofStatsList,
  60                 ntStatsList);
  61         return this.ntStatsList;
  62     }
  63 }