interfacemgr/interfacemgr-impl/src/main/java/org/opendaylight/vpnservice/interfacemgr/IfmNodeConnectorListener.java

   1 package org.opendaylight.vpnservice.interfacemgr;
   2
   3 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
   4 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
   5 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
   6 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
   7 import org.opendaylight.vpnservice.AbstractDataChangeListener;
   8 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
   9 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  10 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  11 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  12 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15
  16 public class IfmNodeConnectorListener extends AbstractDataChangeListener<NodeConnector> implements AutoCloseable{
  17     private static final Logger LOG = LoggerFactory.getLogger(IfmNodeConnectorListener.class);
  18     private ListenerRegistration<DataChangeListener> listenerRegistration;
  19     private final DataBroker broker;
  20     private InterfaceManager ifManager;
  21
  22     public IfmNodeConnectorListener(final DataBroker db) {
  23         super(NodeConnector.class);
  24         broker = db;
  25         registerListener(db);
  26     }
  27
  28     public IfmNodeConnectorListener(final DataBroker dataBroker, InterfaceManager interfaceManager) {
  29         this(dataBroker);
  30         ifManager = interfaceManager;
  31     }
  32
  33     private void registerListener(final DataBroker db) {
  34         try {
  35             listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
  36                     getWildCardPath(), IfmNodeConnectorListener.this, DataChangeScope.SUBTREE);
  37         } catch (final Exception e) {
  38             LOG.error("IfmNodeConnectorListener: DataChange listener registration fail!", e);
  39             throw new IllegalStateException("IfmNodeConnectorListener: registration Listener failed.", e);
  40         }
  41     }
  42
  43     private InstanceIdentifier<NodeConnector> getWildCardPath() {
  44         return InstanceIdentifier.create(Nodes.class).child(Node.class).child(NodeConnector.class);
  45     }
  46
  47     @Override
  48     public void close() throws Exception {
  49         if (listenerRegistration != null) {
  50             try {
  51                 listenerRegistration.close();
  52             } catch (final Exception e) {
  53                 LOG.error("Error when cleaning up DataChangeListener.", e);
  54             }
  55             listenerRegistration = null;
  56         }
  57         LOG.info("IfmNodeConnectorListener Closed");
  58     }
  59
  60     @Override
  61     protected void add(InstanceIdentifier<NodeConnector> identifier, NodeConnector node) {
  62         LOG.trace("NodeConnectorAdded: key: " + identifier + ", value=" + node );
  63         ifManager.processPortAdd(node);
  64     }
  65
  66     @Override
  67     protected void remove(InstanceIdentifier<NodeConnector> identifier, NodeConnector del) {
  68         LOG.trace("NodeConnectorRemoved: key: " + identifier + ", value=" + del );
  69         ifManager.processPortDelete(del);
  70     }
  71
  72     @Override
  73     protected void update(InstanceIdentifier<NodeConnector> identifier, NodeConnector original, NodeConnector update) {
  74         ifManager.processPortUpdate(original, update);
  75     }
  76
  77 }