dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/NodeListener.java

   1 /*
   2  * Copyright (c) 2015 - 2016 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.dhcpservice;
   9
  10 import java.math.BigInteger;
  11 import java.util.List;
  12 import javax.annotation.PostConstruct;
  13 import javax.annotation.PreDestroy;
  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.infra.Datastore;
  20 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  21 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  22 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  23 import org.opendaylight.infrautils.utils.concurrent.ListenableFutures;
  24 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 @Singleton
  33 public class NodeListener extends AsyncDataTreeChangeListenerBase<Node, NodeListener> {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(NodeListener.class);
  36
  37     private final DataBroker broker;
  38     private final DhcpManager dhcpManager;
  39     private final DhcpExternalTunnelManager dhcpExternalTunnelManager;
  40     private final ManagedNewTransactionRunner txRunner;
  41
  42     @Inject
  43     public NodeListener(final DataBroker db, final DhcpManager dhcpMgr,
  44             final DhcpExternalTunnelManager dhcpExternalTunnelManager) {
  45         super(Node.class, NodeListener.class);
  46         this.broker = db;
  47         this.dhcpManager = dhcpMgr;
  48         this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
  49         this.txRunner = new ManagedNewTransactionRunnerImpl(db);
  50     }
  51
  52     @Override
  53     @PostConstruct
  54     public void init() {
  55         registerListener(LogicalDatastoreType.OPERATIONAL, broker);
  56     }
  57
  58     @Override
  59     protected void remove(InstanceIdentifier<Node> identifier, Node del) {
  60         NodeId nodeId = del.getId();
  61         BigInteger dpnId = MDSALUtil.getDpnIdFromNodeName(nodeId);
  62         List<BigInteger> listOfDpns = DhcpServiceUtils.getListOfDpns(broker);
  63         dhcpExternalTunnelManager.handleDesignatedDpnDown(dpnId, listOfDpns);
  64     }
  65
  66     @Override
  67     protected void update(InstanceIdentifier<Node> identifier, Node original, Node update) {
  68
  69     }
  70
  71     @Override
  72     protected void add(InstanceIdentifier<Node> identifier, Node add) {
  73         NodeId nodeId = add.getId();
  74         String[] node =  nodeId.getValue().split(":");
  75         if (node.length < 2) {
  76             LOG.warn("Unexpected nodeId {}", nodeId.getValue());
  77             return;
  78         }
  79         BigInteger dpId = new BigInteger(node[1]);
  80         ListenableFutures.addErrorLogging(txRunner.callWithNewWriteOnlyTransactionAndSubmit(Datastore.CONFIGURATION,
  81             tx -> dhcpManager.setupDefaultDhcpFlows(tx, dpId)), LOG, "Error handling node addition for {}", add);
  82         dhcpExternalTunnelManager.installDhcpDropActionOnDpn(dpId);
  83         List<BigInteger> listOfDpns = DhcpServiceUtils.getListOfDpns(broker);
  84         dhcpExternalTunnelManager.handleDesignatedDpnDown(DhcpMConstants.INVALID_DPID, listOfDpns);
  85     }
  86
  87     @Override
  88     @PreDestroy
  89     public void close() {
  90         super.close();
  91         LOG.debug("Node Listener Closed");
  92     }
  93
  94     @Override
  95     protected InstanceIdentifier<Node> getWildCardPath() {
  96         return InstanceIdentifier.create(Nodes.class).child(Node.class);
  97     }
  98
  99     @Override
 100     protected NodeListener getDataTreeChangeListener() {
 101         return NodeListener.this;
 102     }
 103 }