fibmanager/fibmanager-impl/src/main/java/org/opendaylight/vpnservice/fibmanager/FibNodeCapableListener.java

   1 package org.opendaylight.vpnservice.fibmanager;
   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.vpnservice.mdsalutil.MDSALUtil;
   9 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  10 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  11 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  13 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  14 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 public class FibNodeCapableListener extends AbstractDataChangeListener<FlowCapableNode> implements AutoCloseable{
  19     private static final Logger LOG = LoggerFactory.getLogger(FibNodeCapableListener.class);
  20     private ListenerRegistration<DataChangeListener> listenerRegistration;
  21     private FibManager fibManager;
  22
  23     public FibNodeCapableListener(final DataBroker dataBroker, FibManager fibManager) {
  24         super(FlowCapableNode.class);
  25         registerListener(dataBroker);
  26         this.fibManager = fibManager;
  27     }
  28
  29     private void registerListener(final DataBroker db) {
  30         try {
  31             listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
  32                     getWildCardPath(), FibNodeCapableListener.this, DataChangeScope.ONE);
  33         } catch (final Exception e) {
  34             LOG.error("FibNodeConnectorListener: DataChange listener registration fail!", e);
  35             throw new IllegalStateException("FibNodeConnectorListener: registration Listener failed.", e);
  36         }
  37     }
  38
  39     private InstanceIdentifier<FlowCapableNode> getWildCardPath() {
  40         return InstanceIdentifier.create(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class);
  41     }
  42
  43     @Override
  44     public void close() throws Exception {
  45         if (listenerRegistration != null) {
  46             try {
  47                 listenerRegistration.close();
  48             } catch (final Exception e) {
  49                 LOG.error("Error when cleaning up DataChangeListener.", e);
  50             }
  51             listenerRegistration = null;
  52         }
  53         LOG.info("FibNodeConnectorListener Closed");
  54     }
  55
  56     @Override
  57     protected void add(InstanceIdentifier<FlowCapableNode> identifier, FlowCapableNode node) {
  58         LOG.trace("FlowCapableNode Added: key: " + identifier + ", value=" + node );
  59         NodeKey nodeKey = identifier.firstKeyOf(Node.class, NodeKey.class);
  60         long dpnId = MDSALUtil.getDpnIdFromNodeName(nodeKey.getId());
  61         fibManager.processNodeAdd(dpnId);
  62     }
  63
  64     @Override
  65     protected void remove(InstanceIdentifier<FlowCapableNode> identifier, FlowCapableNode del) {
  66     }
  67
  68     @Override
  69     protected void update(InstanceIdentifier<FlowCapableNode> identifier, FlowCapableNode original, FlowCapableNode update) {
  70     }
  71 }