vpnservice/qosservice/impl/src/main/java/org/opendaylight/netvirt/qosservice/QosAlertPortData.java

   1 /*
   2  * Copyright (c) 2017 Ericsson India Global Services Pvt Ltd. 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.netvirt.qosservice;
  10
  11 import java.math.BigInteger;
  12 import javax.annotation.concurrent.NotThreadSafe;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.rev160613.qos.attributes.qos.policies.QosPolicy;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.node.connector.statistics.and.port.number.map.NodeConnectorStatisticsAndPortNumberMap;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 @NotThreadSafe
  20 public class QosAlertPortData {
  21     private static final Logger LOG = LoggerFactory.getLogger(QosAlertPortData.class);
  22     private static final BigInteger BIG_HUNDRED = new BigInteger("100");
  23
  24     private static volatile BigInteger alertThreshold;
  25
  26     private final Port port;
  27     private final QosNeutronUtils qosNeutronUtils;
  28     private volatile BigInteger rxPackets;
  29     private volatile BigInteger rxDroppedPackets;
  30     private volatile boolean statsDataInit;
  31
  32     public QosAlertPortData(final Port port, final QosNeutronUtils qosNeutronUtils) {
  33         this.port = port;
  34         this.qosNeutronUtils = qosNeutronUtils;
  35     }
  36
  37     public static void setAlertThreshold(int threshold) {
  38         alertThreshold = BigInteger.valueOf(threshold);
  39         LOG.debug("setAlertThreshold:{}", alertThreshold);
  40     }
  41
  42     public void initPortData() {
  43         LOG.trace("Port {} data initialized", port.getUuid().getValue());
  44         statsDataInit = false;
  45     }
  46
  47     public void updatePortStatistics(NodeConnectorStatisticsAndPortNumberMap statsData) {
  48         LOG.trace("Port {} rx-packets {} tx-packets {} rx-dropped {} tx-dropped {}", port.getUuid(),
  49                            statsData.getPackets().getReceived(), statsData.getPackets().getTransmitted(),
  50                            statsData.getReceiveDrops(), statsData.getTransmitDrops());
  51         if (statsDataInit) {
  52             calculateAlertCondition(statsData);
  53         }
  54         rxPackets = statsData.getPackets().getReceived();
  55         rxDroppedPackets = statsData.getReceiveDrops();
  56         statsDataInit = true;
  57     }
  58
  59     private void calculateAlertCondition(NodeConnectorStatisticsAndPortNumberMap statsData)  {
  60         BigInteger rxDiff = statsData.getPackets().getReceived().subtract(rxPackets);
  61         BigInteger rxDroppedDiff = statsData.getReceiveDrops().subtract(rxDroppedPackets);
  62
  63         BigInteger rxTotalDiff = rxDiff.add(rxDroppedDiff);
  64         LOG.trace("Port {} rxDiff:{} rxDropped diff:{} total diff:{}", port.getUuid(), rxDiff,
  65                                                                             rxDroppedDiff, rxTotalDiff);
  66         QosPolicy qosPolicy = qosNeutronUtils.getQosPolicy(port);
  67
  68         if (qosPolicy == null) {
  69             return;
  70         }
  71
  72         if (rxDroppedDiff.multiply(BIG_HUNDRED).compareTo(rxTotalDiff.multiply(alertThreshold)) > 0) {
  73             LOG.trace(QosConstants.ALERT_MSG_FORMAT, qosPolicy.getName(), qosPolicy.getUuid().getValue(),
  74                     port.getUuid().getValue(), port.getNetworkId().getValue(), statsData.getPackets().getReceived(),
  75                                                                                         statsData.getReceiveDrops());
  76
  77             QosAlertGenerator.raiseAlert(qosPolicy.getName(), qosPolicy.getUuid().getValue(),
  78                     port.getUuid().getValue(), port.getNetworkId().getValue(), statsData.getPackets().getReceived(),
  79                                                                                           statsData.getReceiveDrops());
  80         }
  81
  82     }
  83 }