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
   9 package org.opendaylight.openflowplugin.learningswitch;
  10
  11 import java.util.Collection;
  12 import javax.annotation.Nonnull;
  13 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
  14 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  17 import org.opendaylight.yangtools.yang.binding.DataObject;
  18 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 /**
  23  *
  24  */
  25 public class WakeupOnNode implements DataTreeChangeListener<Table> {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(WakeupOnNode.class);
  28     private LearningSwitchHandler learningSwitchHandler;
  29
  30     @Override
  31     public void onDataTreeChanged(@Nonnull Collection<DataTreeModification<Table>> modifications) {
  32         Short requiredTableId = 0;
  33         // TODO add flow
  34
  35         for (DataTreeModification modification : modifications) {
  36             if (modification.getRootNode().getModificationType() == ModificationType.SUBTREE_MODIFIED) {
  37                 DataObject table = modification.getRootNode().getDataAfter();
  38                 if (table instanceof Table) {
  39                     Table tableSure = (Table) table;
  40                     LOG.trace("table: {}", table);
  41
  42                     if (requiredTableId.equals(tableSure.getId())) {
  43                         InstanceIdentifier<Table> tablePath = (InstanceIdentifier<Table>) modification.getRootPath().getRootIdentifier();
  44                         learningSwitchHandler.onSwitchAppeared(tablePath);
  45                     }
  46                 }
  47             }
  48         }
  49     }
  50
  51     /**
  52      * @param learningSwitchHandler the learningSwitchHandler to set
  53      */
  54     public void setLearningSwitchHandler(
  55             LearningSwitchHandler learningSwitchHandler) {
  56         this.learningSwitchHandler = learningSwitchHandler;
  57     }
  58
  59 }