opendaylight/adsal/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.Collections;
  12 import java.util.List;
  13
  14 import org.opendaylight.controller.sal.core.Node;
  15 import org.opendaylight.controller.sal.reader.NodeTableStatistics;
  16 import org.opendaylight.controller.sal.utils.NodeCreator;
  17 import org.openflow.protocol.statistics.OFStatistics;
  18 import org.openflow.protocol.statistics.OFTableStatistics;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 /**
  23  * Converts an openflow list of table statistics in a SAL list of
  24  * NodeTableStatistics objects
  25  */
  26 public class TableStatisticsConverter {
  27     private static final Logger log = LoggerFactory
  28             .getLogger(TableStatisticsConverter.class);
  29
  30     private final long switchId;
  31     private List<OFStatistics> ofStatsList;
  32     private List<NodeTableStatistics> ntStatsList;
  33
  34     public TableStatisticsConverter(long switchId, List<OFStatistics> statsList) {
  35         this.switchId = switchId;
  36         if (statsList == null || statsList.isEmpty()) {
  37             this.ofStatsList = Collections.emptyList();
  38         } else {
  39             this.ofStatsList = new ArrayList<OFStatistics>(statsList);
  40         }
  41         this.ntStatsList = null;
  42     }
  43
  44     public List<NodeTableStatistics> getNodeTableStatsList() {
  45         if (this.ofStatsList != null && this.ntStatsList == null) {
  46             this.ntStatsList = new ArrayList<NodeTableStatistics>();
  47             OFTableStatistics ofTableStat;
  48             Node node = NodeCreator.createOFNode(switchId);
  49             for (OFStatistics ofStat : this.ofStatsList) {
  50                 ofTableStat = (OFTableStatistics) ofStat;
  51                 NodeTableStatistics ntStat = new NodeTableStatistics();
  52                 ntStat.setNodeTable(TableConverter.toNodeTable(
  53                         ofTableStat.getTableId(), node));
  54                 ntStat.setActiveCount(ofTableStat.getActiveCount());
  55                 ntStat.setLookupCount(ofTableStat.getLookupCount());
  56                 ntStat.setMatchedCount(ofTableStat.getMatchedCount());
  57                 ntStat.setMaximumEntries(ofTableStat.getMaximumEntries());
  58                 this.ntStatsList.add(ntStat);
  59             }
  60         }
  61         log.trace("OFStatistics: {} NodeTableStatistics: {}", ofStatsList,
  62                 ntStatsList);
  63         return this.ntStatsList;
  64     }
  65 }