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 javax.annotation.Nonnull;
  12 import org.opendaylight.mdsal.binding.api.DataObjectModification.ModificationType;
  13 import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
  14 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  16 import org.opendaylight.yangtools.yang.binding.DataObject;
  17 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public class WakeupOnNode implements DataTreeChangeListener<Table> {
  22
  23     private static final Logger LOG = LoggerFactory.getLogger(WakeupOnNode.class);
  24     private LearningSwitchHandler learningSwitchHandler;
  25
  26     @Override
  27     public void onDataTreeChanged(@Nonnull Collection<DataTreeModification<Table>> modifications) {
  28         Short requiredTableId = 0;
  29         // TODO add flow
  30
  31         for (DataTreeModification<Table> modification : modifications) {
  32             if (modification.getRootNode().getModificationType() == ModificationType.SUBTREE_MODIFIED) {
  33                 DataObject table = modification.getRootNode().getDataAfter();
  34                 if (table instanceof Table) {
  35                     Table tableSure = (Table) table;
  36                     LOG.trace("table: {}", table);
  37
  38                     if (requiredTableId.equals(tableSure.getId())) {
  39                         InstanceIdentifier<Table> tablePath =
  40                                 modification.getRootPath().getRootIdentifier();
  41                         learningSwitchHandler.onSwitchAppeared(tablePath);
  42                     }
  43                 }
  44             }
  45         }
  46     }
  47
  48     /**
  49      * Sets the LearningSwitchHandler.
  50      *
  51      * @param learningSwitchHandler the learningSwitchHandler to set
  52      */
  53     public void setLearningSwitchHandler(
  54             LearningSwitchHandler learningSwitchHandler) {
  55         this.learningSwitchHandler = learningSwitchHandler;
  56     }
  57 }