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.util.ArrayList;
  11 import java.util.List;
  12 import javax.annotation.PreDestroy;
  13 import javax.inject.Inject;
  14 import javax.inject.Singleton;
  15 import org.opendaylight.genius.mdsalutil.ActionInfo;
  16 import org.opendaylight.genius.mdsalutil.FlowEntity;
  17 import org.opendaylight.genius.mdsalutil.InstructionInfo;
  18 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  19 import org.opendaylight.genius.mdsalutil.MatchInfo;
  20 import org.opendaylight.genius.mdsalutil.NwConstants;
  21 import org.opendaylight.genius.mdsalutil.actions.ActionNxResubmit;
  22 import org.opendaylight.genius.mdsalutil.instructions.InstructionApplyActions;
  23 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  24 import org.opendaylight.infrautils.utils.concurrent.Executors;
  25 import org.opendaylight.mdsal.binding.api.DataBroker;
  26 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  27 import org.opendaylight.netvirt.qosservice.recovery.QosServiceRecoveryHandler;
  28 import org.opendaylight.serviceutils.srm.RecoverableListener;
  29 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  30 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  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.opendaylight.yangtools.yang.common.Uint64;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 @Singleton
  41 public class QosNodeListener extends AbstractAsyncDataTreeChangeListener<FlowCapableNode>
  42         implements RecoverableListener {
  43     private static final Logger LOG = LoggerFactory.getLogger(QosNodeListener.class);
  44
  45     private final DataBroker dataBroker;
  46     private final IMdsalApiManager mdsalUtils;
  47
  48     @Inject
  49     public QosNodeListener(final DataBroker dataBroker, final IMdsalApiManager mdsalUtils,
  50                            final ServiceRecoveryRegistry serviceRecoveryRegistry,
  51                            final QosServiceRecoveryHandler qosServiceRecoveryHandler) {
  52         super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(Nodes.class).child(Node.class)
  53                 .augmentation(FlowCapableNode.class),
  54                 Executors.newListeningSingleThreadExecutor("QosNodeListener", LOG));
  55         this.dataBroker = dataBroker;
  56         this.mdsalUtils = mdsalUtils;
  57         serviceRecoveryRegistry.addRecoverableListener(qosServiceRecoveryHandler.buildServiceRegistryKey(),
  58                 this);
  59         LOG.trace("{} created",  getClass().getSimpleName());
  60     }
  61
  62     public void init() {
  63         LOG.trace("{} init and registerListener done", getClass().getSimpleName());
  64     }
  65
  66     @Override
  67     @PreDestroy
  68     public void close() {
  69         super.close();
  70         Executors.shutdownAndAwaitTermination(getExecutorService());
  71     }
  72
  73     @Override
  74     public void registerListener() {
  75         super.register();
  76     }
  77
  78     @Override
  79     public void deregisterListener() {
  80         super.close();
  81     }
  82
  83     @Override
  84     public void remove(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModification) {
  85         //do nothing
  86     }
  87
  88     @Override
  89     public void update(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModificationBefore,
  90                           FlowCapableNode dataObjectModificationAfter) {
  91         //do nothing
  92     }
  93
  94     @Override
  95     public void add(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModification) {
  96         NodeKey nodeKey = key.firstKeyOf(Node.class);
  97         Uint64 dpId = MDSALUtil.getDpnIdFromNodeName(nodeKey.getId());
  98         createTableMissEntry(dpId);
  99     }
 100
 101     public void createTableMissEntry(Uint64 dpnId) {
 102         List<MatchInfo> matches = new ArrayList<>();
 103         List<InstructionInfo> instructions = new ArrayList<>();
 104         List<ActionInfo> actionsInfos = new ArrayList<>();
 105         actionsInfos.add(new ActionNxResubmit(NwConstants.LPORT_DISPATCHER_TABLE));
 106         instructions.add(new InstructionApplyActions(actionsInfos));
 107         FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId, NwConstants.QOS_DSCP_TABLE, "QoSTableMissFlow",
 108                 0, "QoS Table Miss Flow", 0, 0,
 109                 NwConstants.COOKIE_QOS_TABLE, matches, instructions);
 110         mdsalUtils.installFlow(flowEntity);
 111     }
 112 }
 113
 114