qosservice/impl/src/main/java/org/opendaylight/netvirt/qosservice/QosNodeListener.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 package org.opendaylight.netvirt.qosservice;
   9
  10 import java.math.BigInteger;
  11 import java.util.ArrayList;
  12 import java.util.List;
  13 import javax.annotation.PostConstruct;
  14 import javax.inject.Inject;
  15 import javax.inject.Singleton;
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  19 import org.opendaylight.genius.mdsalutil.ActionInfo;
  20 import org.opendaylight.genius.mdsalutil.FlowEntity;
  21 import org.opendaylight.genius.mdsalutil.InstructionInfo;
  22 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  23 import org.opendaylight.genius.mdsalutil.MatchInfo;
  24 import org.opendaylight.genius.mdsalutil.NwConstants;
  25 import org.opendaylight.genius.mdsalutil.actions.ActionNxResubmit;
  26 import org.opendaylight.genius.mdsalutil.instructions.InstructionApplyActions;
  27 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  28 import org.opendaylight.genius.srm.RecoverableListener;
  29 import org.opendaylight.genius.srm.ServiceRecoveryRegistry;
  30 import org.opendaylight.netvirt.qosservice.recovery.QosServiceRecoveryHandler;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 @Singleton
  40 public class QosNodeListener extends AsyncDataTreeChangeListenerBase<FlowCapableNode, QosNodeListener>
  41         implements RecoverableListener {
  42     private static final Logger LOG = LoggerFactory.getLogger(QosNodeListener.class);
  43
  44     private final DataBroker dataBroker;
  45     private final IMdsalApiManager mdsalUtils;
  46
  47     @Inject
  48     public QosNodeListener(final DataBroker dataBroker, final IMdsalApiManager mdsalUtils,
  49                            final ServiceRecoveryRegistry serviceRecoveryRegistry,
  50                            final QosServiceRecoveryHandler qosServiceRecoveryHandler) {
  51         super(FlowCapableNode.class, QosNodeListener.class);
  52         this.dataBroker = dataBroker;
  53         this.mdsalUtils = mdsalUtils;
  54         serviceRecoveryRegistry.addRecoverableListener(qosServiceRecoveryHandler.buildServiceRegistryKey(),
  55                 this);
  56         LOG.trace("{} created",  getClass().getSimpleName());
  57     }
  58
  59     @Override
  60     @PostConstruct
  61     public void init() {
  62         registerListener();
  63         LOG.trace("{} init and registerListener done", getClass().getSimpleName());
  64     }
  65
  66     @Override
  67     public void registerListener() {
  68         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  69     }
  70
  71     @Override
  72     protected InstanceIdentifier<FlowCapableNode> getWildCardPath() {
  73         return InstanceIdentifier.create(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class);
  74     }
  75
  76     @Override
  77     protected void remove(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModification) {
  78         //do nothing
  79     }
  80
  81     @Override
  82     protected void update(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModificationBefore,
  83                           FlowCapableNode dataObjectModificationAfter) {
  84         //do nothing
  85     }
  86
  87     @Override
  88     protected void add(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModification) {
  89         NodeKey nodeKey = key.firstKeyOf(Node.class);
  90         BigInteger dpId = MDSALUtil.getDpnIdFromNodeName(nodeKey.getId());
  91         createTableMissEntry(dpId);
  92     }
  93
  94     @Override
  95     protected QosNodeListener getDataTreeChangeListener() {
  96         return QosNodeListener.this;
  97     }
  98
  99     public void createTableMissEntry(BigInteger dpnId) {
 100         List<MatchInfo> matches = new ArrayList<>();
 101         List<InstructionInfo> instructions = new ArrayList<>();
 102         List<ActionInfo> actionsInfos = new ArrayList<>();
 103         actionsInfos.add(new ActionNxResubmit(NwConstants.LPORT_DISPATCHER_TABLE));
 104         instructions.add(new InstructionApplyActions(actionsInfos));
 105         FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId, NwConstants.QOS_DSCP_TABLE, "QoSTableMissFlow",
 106                 0, "QoS Table Miss Flow", 0, 0,
 107                 NwConstants.COOKIE_QOS_TABLE, matches, instructions);
 108         mdsalUtils.installFlow(flowEntity);
 109     }
 110 }
 111
 112