aclservice/impl/src/main/java/org/opendaylight/netvirt/aclservice/listeners/AclNodeListener.java

   1 /*
   2  * Copyright (c) 2016, 2018 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.aclservice.listeners;
  10
  11 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  12
  13 import java.util.Collections;
  14 import javax.annotation.PostConstruct;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.eclipse.jdt.annotation.Nullable;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  21 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  22 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  23 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  24 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  25 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  26 import org.opendaylight.netvirt.aclservice.utils.AclConstants;
  27 import org.opendaylight.netvirt.aclservice.utils.AclNodeDefaultFlowsTxBuilder;
  28 import org.opendaylight.netvirt.aclservice.utils.AclServiceUtils;
  29 import org.opendaylight.serviceutils.srm.RecoverableListener;
  30 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  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.yang.gen.v1.urn.opendaylight.netvirt.aclservice.config.rev160806.AclserviceConfig;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.config.rev160806.AclserviceConfig.SecurityGroupMode;
  37 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  38 import org.opendaylight.yangtools.yang.common.Uint64;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 /**
  43  * Listener to handle flow capable node updates. Configures default ACL flows
  44  * during when node is discovered.
  45  */
  46 @Singleton
  47 public class AclNodeListener extends AsyncDataTreeChangeListenerBase<FlowCapableNode, AclNodeListener>
  48         implements RecoverableListener {
  49
  50     private static final Logger LOG = LoggerFactory.getLogger(AclNodeListener.class);
  51
  52     private final IMdsalApiManager mdsalManager;
  53     private final AclserviceConfig config;
  54     private final DataBroker dataBroker;
  55     private final ManagedNewTransactionRunner txRunner;
  56     private final AclServiceUtils aclServiceUtils;
  57     private final JobCoordinator jobCoordinator;
  58
  59     @Nullable
  60     private SecurityGroupMode securityGroupMode = null;
  61
  62     @Inject
  63     public AclNodeListener(final IMdsalApiManager mdsalManager, DataBroker dataBroker, AclserviceConfig config,
  64             AclServiceUtils aclServiceUtils, JobCoordinator jobCoordinator,
  65             ServiceRecoveryRegistry serviceRecoveryRegistry) {
  66         super(FlowCapableNode.class, AclNodeListener.class);
  67
  68         this.mdsalManager = mdsalManager;
  69         this.dataBroker = dataBroker;
  70         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  71         this.config = config;
  72         this.aclServiceUtils = aclServiceUtils;
  73         this.jobCoordinator = jobCoordinator;
  74         serviceRecoveryRegistry.addRecoverableListener(AclServiceUtils.getRecoverServiceRegistryKey(), this);
  75     }
  76
  77     @Override
  78     @PostConstruct
  79     public void init() {
  80         LOG.info("{} start", getClass().getSimpleName());
  81         if (config != null) {
  82             this.securityGroupMode = config.getSecurityGroupMode();
  83         }
  84         registerListener();
  85         LOG.info("AclserviceConfig: {}", this.config);
  86     }
  87
  88     @Override
  89     public void registerListener() {
  90         registerListener(LogicalDatastoreType.OPERATIONAL, dataBroker);
  91     }
  92
  93     @Override
  94     protected InstanceIdentifier<FlowCapableNode> getWildCardPath() {
  95         return InstanceIdentifier.create(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class);
  96     }
  97
  98     @Override
  99     protected void remove(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModification) {
 100         // do nothing
 101     }
 102
 103     @Override
 104     protected void update(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModificationBefore,
 105             FlowCapableNode dataObjectModificationAfter) {
 106         // do nothing
 107     }
 108
 109     @Override
 110     protected void add(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode dataObjectModification) {
 111         NodeKey nodeKey = key.firstKeyOf(Node.class);
 112         Uint64 dpId = MDSALUtil.getDpnIdFromNodeName(nodeKey.getId());
 113         LOG.info("Received ACL node [{}] add event", dpId);
 114
 115         if (securityGroupMode != null && securityGroupMode != SecurityGroupMode.Stateful) {
 116             LOG.error("Invalid security group mode ({}) obtained from AclserviceConfig. dpId={}", securityGroupMode,
 117                     dpId);
 118             return;
 119         }
 120         jobCoordinator.enqueueJob(dpId.toString(),
 121             () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION, tx -> {
 122                 new AclNodeDefaultFlowsTxBuilder(dpId, mdsalManager, config, tx).build();
 123
 124                 LOG.info("Adding default ACL flows for dpId={}", dpId);
 125             })), AclConstants.JOB_MAX_RETRIES);
 126
 127         LOG.trace("FlowCapableNode (dpid: {}) add event is processed.", dpId);
 128     }
 129
 130     @Override
 131     protected AclNodeListener getDataTreeChangeListener() {
 132         return AclNodeListener.this;
 133     }
 134 }