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

   1 /*
   2  * Copyright (c) 2015 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.vpnservice.test;
   9
  10 import java.util.Collection;
  11
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  14 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24
  25 public class MockFlowForwarder extends AbstractMockForwardingRulesManager<Flow> {
  26
  27     private int nFlowCount = 0;
  28
  29     private ListenerRegistration<MockFlowForwarder> listenerRegistration;
  30
  31     public MockFlowForwarder( final DataBroker db) {
  32         super() ;
  33         registerListener(db) ;
  34     }
  35
  36     private void registerListener(final DataBroker db) {
  37         final DataTreeIdentifier<Flow> treeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION, getWildCardPath());
  38         try {
  39             listenerRegistration = db.registerDataTreeChangeListener(treeId, MockFlowForwarder.this);
  40         } catch (final Exception e) {
  41             throw new IllegalStateException("FlowForwarder registration Listener fail! System needs restart.", e);
  42         }
  43     }
  44
  45     private InstanceIdentifier<Flow> getWildCardPath() {
  46             return InstanceIdentifier.create(Nodes.class).child(Node.class)
  47                     .augmentation(FlowCapableNode.class).child(Table.class).child(Flow.class);
  48      }
  49
  50     @Override
  51     public void onDataTreeChanged(Collection<DataTreeModification<Flow>> changes) {
  52         for (DataTreeModification<Flow> change : changes) {
  53             final InstanceIdentifier<Flow> key = change.getRootPath().getRootIdentifier();
  54             final DataObjectModification<Flow> mod = change.getRootNode();
  55
  56                 switch (mod.getModificationType()) {
  57                 case DELETE:
  58                     nFlowCount -= 1;
  59                     break;
  60                 case SUBTREE_MODIFIED:
  61                     // CHECK IF RQD
  62                     break;
  63                 case WRITE:
  64                     if (mod.getDataBefore() == null) {
  65                         nFlowCount += 1;
  66                     } else {
  67                         // UPDATE COUNT UNCHANGED
  68                     }
  69                     break;
  70                 default:
  71                     throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
  72                 }
  73             }
  74      }
  75
  76     public int getDataChgCount() {
  77         return nFlowCount;
  78     }
  79 }