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

   1 /*
   2  * Copyright (c) 2016, 2017 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.genius.test;
   9
  10 import static java.util.concurrent.TimeUnit.MILLISECONDS;
  11
  12 import java.util.Collection;
  13 import java.util.concurrent.TimeUnit;
  14 import java.util.concurrent.atomic.AtomicInteger;
  15 import org.awaitility.Awaitility;
  16 import org.hamcrest.Matchers;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  19 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  20 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  27 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class MockFlowForwarder extends AbstractMockForwardingRulesManager<Flow> {
  33     private static final Logger LOG = LoggerFactory.getLogger(MockFlowForwarder.class);
  34
  35     private final AtomicInteger flowCount = new AtomicInteger(0);
  36
  37     private ListenerRegistration<MockFlowForwarder> listenerRegistration;
  38
  39     public MockFlowForwarder(final DataBroker db) {
  40         super();
  41         registerListener(db);
  42     }
  43
  44     private void registerListener(final DataBroker db) {
  45         final DataTreeIdentifier<Flow> treeId = new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
  46                 getWildCardPath());
  47         listenerRegistration = db.registerDataTreeChangeListener(treeId, MockFlowForwarder.this);
  48     }
  49
  50     private InstanceIdentifier<Flow> getWildCardPath() {
  51         return InstanceIdentifier.create(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class)
  52                 .child(Table.class).child(Flow.class);
  53     }
  54
  55     @Override
  56     public void onDataTreeChanged(Collection<DataTreeModification<Flow>> changes) {
  57         for (DataTreeModification<Flow> change : changes) {
  58             final InstanceIdentifier<Flow> key = change.getRootPath().getRootIdentifier();
  59             final DataObjectModification<Flow> mod = change.getRootNode();
  60
  61             switch (mod.getModificationType()) {
  62                 case DELETE:
  63                     flowCount.decrementAndGet();
  64                     break;
  65                 case SUBTREE_MODIFIED:
  66                     // CHECK IF RQD
  67                     break;
  68                 case WRITE:
  69                     if (mod.getDataBefore() == null) {
  70                         flowCount.incrementAndGet();
  71                     } else {
  72                         // UPDATE COUNT UNCHANGED
  73                     }
  74                     break;
  75                 default:
  76                     throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
  77             }
  78         }
  79     }
  80
  81     public void awaitDataChangeCount(int expCount) {
  82         Awaitility.await("MockFlowForwarder").atMost(5, TimeUnit.SECONDS).pollDelay(0, MILLISECONDS)
  83             .conditionEvaluationListener(condition -> LOG.info(
  84                 "awaitDataChangeCount: Elapsed time {}s, remaining time {}s; flowCount: {}",
  85                     condition.getElapsedTimeInMS() / 1000, condition.getRemainingTimeInMS() / 1000,
  86                     condition.getValue()))
  87             .untilAtomic(flowCount, Matchers.equalTo(expCount));
  88     }
  89 }