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 javax.annotation.PreDestroy;
  11 import javax.inject.Inject;
  12 import javax.inject.Singleton;
  13 import org.opendaylight.genius.infra.Datastore;
  14 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  15 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  16 import org.opendaylight.infrautils.utils.concurrent.Executors;
  17 import org.opendaylight.infrautils.utils.concurrent.ListenableFutures;
  18 import org.opendaylight.mdsal.binding.api.DataBroker;
  19 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  20 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.opendaylight.yangtools.yang.common.Uint64;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 @Singleton
  30 public class NodeListener extends AbstractAsyncDataTreeChangeListener<Node> {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(NodeListener.class);
  33
  34     private final DataBroker broker;
  35     private final DhcpManager dhcpManager;
  36     private final DhcpExternalTunnelManager dhcpExternalTunnelManager;
  37     private final ManagedNewTransactionRunner txRunner;
  38
  39     @Inject
  40     public NodeListener(final DataBroker db, final DhcpManager dhcpMgr,
  41             final DhcpExternalTunnelManager dhcpExternalTunnelManager) {
  42         super(db, LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(Nodes.class).child(Node.class),
  43                 Executors.newListeningSingleThreadExecutor("NodeListener", LOG));
  44         this.broker = db;
  45         this.dhcpManager = dhcpMgr;
  46         this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
  47         this.txRunner = new ManagedNewTransactionRunnerImpl(db);
  48     }
  49
  50     public void init() {
  51         LOG.info("{} init", getClass().getSimpleName());
  52     }
  53
  54     @Override
  55     public void remove(InstanceIdentifier<Node> identifier, Node del) {
  56     }
  57
  58     @Override
  59     public void update(InstanceIdentifier<Node> identifier, Node original, Node update) {
  60
  61     }
  62
  63     @Override
  64     public void add(InstanceIdentifier<Node> identifier, Node add) {
  65         NodeId nodeId = add.getId();
  66         String[] node =  nodeId.getValue().split(":");
  67         if (node.length < 2) {
  68             LOG.warn("Unexpected nodeId {}", nodeId.getValue());
  69             return;
  70         }
  71         try {
  72             if (node[1] != null) {
  73                 Uint64 dpId = Uint64.valueOf(node[1]);
  74                 ListenableFutures.addErrorLogging(
  75                         txRunner.callWithNewWriteOnlyTransactionAndSubmit(Datastore.CONFIGURATION,
  76                             tx -> dhcpManager.setupDefaultDhcpFlows(tx, dpId)),
  77                             LOG, "Error handling node addition for {}", add);
  78                 dhcpExternalTunnelManager.installDhcpDropActionOnDpn(dpId);
  79             } else {
  80                 LOG.error("Unexpected nodeId {} found", nodeId.getValue());
  81             }
  82         } catch (NumberFormatException ex) {
  83             LOG.error("Unexpected nodeId {} found with Exception {} ", nodeId.getValue(),ex.getMessage());
  84         }
  85     }
  86
  87     @Override
  88     @PreDestroy
  89     public void close() {
  90         super.close();
  91         Executors.shutdownAndAwaitTermination(getExecutorService());
  92         LOG.debug("Node Listener Closed");
  93     }
  94 }