samples/learning-switch/src/main/java/org/opendaylight/openflowplugin/learningswitch/WakeupOnNode.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. 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.openflowplugin.learningswitch;
   9
  10 import java.util.Collection;
  11 import org.opendaylight.mdsal.binding.api.DataObjectModification.ModificationType;
  12 import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
  13 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  15 import org.opendaylight.yangtools.yang.common.Uint8;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 public class WakeupOnNode implements DataTreeChangeListener<Table> {
  20     private static final Logger LOG = LoggerFactory.getLogger(WakeupOnNode.class);
  21
  22     private LearningSwitchHandler learningSwitchHandler = null;
  23
  24     @Override
  25     public void onDataTreeChanged(final Collection<DataTreeModification<Table>> modifications) {
  26         Uint8 requiredTableId = Uint8.ZERO;
  27         // TODO add flow
  28
  29         for (var modification : modifications) {
  30             if (modification.getRootNode().getModificationType() == ModificationType.SUBTREE_MODIFIED) {
  31                 var table = modification.getRootNode().getDataAfter();
  32                 if (table != null) {
  33                     LOG.trace("table: {}", table);
  34                     if (requiredTableId.equals(table.getId())) {
  35                         learningSwitchHandler.onSwitchAppeared(modification.getRootPath().getRootIdentifier());
  36                     }
  37                 }
  38             }
  39         }
  40     }
  41
  42     /**
  43      * Sets the LearningSwitchHandler.
  44      *
  45      * @param learningSwitchHandler the learningSwitchHandler to set
  46      */
  47     public void setLearningSwitchHandler(final LearningSwitchHandler learningSwitchHandler) {
  48         this.learningSwitchHandler = learningSwitchHandler;
  49     }
  50 }