mdsalutil/mdsalutil-impl/src/test/java/org/opendaylight/vpnservice/test/MockFlowForwarder.java

   1 package org.opendaylight.vpnservice.test;
   2
   3 import java.util.Collection;
   4
   5 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
   6 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
   7 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
   8 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
   9 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  10 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  11 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  15 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  17
  18 public class MockFlowForwarder extends AbstractMockForwardingRulesManager<Flow> {
  19
  20     private int nFlowCount = 0;
  21
  22     private ListenerRegistration<MockFlowForwarder> listenerRegistration;
  23
  24     public MockFlowForwarder( final DataBroker db) {
  25         super() ;
  26         registerListener(db) ;
  27     }
  28
  29     private void registerListener(final DataBroker db) {
  30         final DataTreeIdentifier<Flow> treeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, getWildCardPath());
  31         try {
  32             listenerRegistration = db.registerDataTreeChangeListener(treeId, MockFlowForwarder.this);
  33         } catch (final Exception e) {
  34             throw new IllegalStateException("FlowForwarder registration Listener fail! System needs restart.", e);
  35         }
  36     }
  37
  38     private InstanceIdentifier<Flow> getWildCardPath() {
  39             return InstanceIdentifier.create(Nodes.class).child(Node.class)
  40                     .augmentation(FlowCapableNode.class).child(Table.class).child(Flow.class);
  41      }
  42
  43     @Override
  44     public void onDataTreeChanged(Collection<DataTreeModification<Flow>> changes) {
  45         for (DataTreeModification<Flow> change : changes) {
  46             final InstanceIdentifier<Flow> key = change.getRootPath().getRootIdentifier();
  47             final DataObjectModification<Flow> mod = change.getRootNode();
  48
  49                 switch (mod.getModificationType()) {
  50                 case DELETE:
  51                     nFlowCount -= 1;
  52                     break;
  53                 case SUBTREE_MODIFIED:
  54                     // CHECK IF RQD
  55                     break;
  56                 case WRITE:
  57                     if (mod.getDataBefore() == null) {
  58                         nFlowCount += 1;
  59                     } else {
  60                         // UPDATE COUNT UNCHANGED
  61                     }
  62                     break;
  63                 default:
  64                     throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
  65                 }
  66             }
  67      }
  68
  69     public int getDataChgCount() {
  70         return nFlowCount;
  71     }
  72 }