impl/src/main/java/org/opendaylight/unimgr/impl/UnimgrDataChangeListener.java

   1 /*
   2  * Copyright (c) 2015 CableLabs 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.unimgr.impl;
   9
  10 import java.util.ArrayList;
  11 import java.util.HashSet;
  12 import java.util.List;
  13 import java.util.Map;
  14 import java.util.Set;
  15
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  19 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.unimgr.api.IUnimgrDataChangeListener;
  22 import org.opendaylight.unimgr.command.Command;
  23 import org.opendaylight.unimgr.command.EvcCreateCommand;
  24 import org.opendaylight.unimgr.command.EvcDeleteCommand;
  25 import org.opendaylight.unimgr.command.EvcUpdateCommand;
  26 import org.opendaylight.unimgr.command.TransactionInvoker;
  27 import org.opendaylight.unimgr.command.UniCreateCommand;
  28 import org.opendaylight.unimgr.command.UniDeleteCommand;
  29 import org.opendaylight.unimgr.command.UniUpdateCommand;
  30 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  31 import org.opendaylight.yangtools.yang.binding.DataObject;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class UnimgrDataChangeListener  implements IUnimgrDataChangeListener {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(UnimgrDataChangeListener.class);
  39     private Set<ListenerRegistration<DataChangeListener>> listeners;
  40     private DataBroker dataBroker;
  41     private TransactionInvoker invoker;
  42
  43     public UnimgrDataChangeListener(DataBroker dataBroker, TransactionInvoker invoker) {
  44         this.dataBroker = dataBroker;
  45         this.invoker = invoker;
  46         listeners = new HashSet<ListenerRegistration<DataChangeListener>>();
  47         listeners.add(dataBroker.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
  48                                                             UnimgrMapper.getUniTopologyIid(),
  49                                                             this,
  50                                                             DataChangeScope.SUBTREE));
  51         listeners.add(dataBroker.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
  52                                                             UnimgrMapper.getEvcTopologyIid(),
  53                                                             this,
  54                                                             DataChangeScope.SUBTREE));
  55         listeners.add(dataBroker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
  56                                                             UnimgrMapper.getOvsdbTopologyIid(),
  57                                                             this,
  58                                                             DataChangeScope.SUBTREE));
  59     }
  60
  61     @Override
  62     public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>,
  63                               DataObject> change) {
  64         create(change.getCreatedData());
  65         update(change.getUpdatedData());
  66         delete(change);
  67     }
  68
  69     @Override
  70     public void create(Map<InstanceIdentifier<?>,
  71                        DataObject> changes) {
  72         if (changes != null) {
  73             List<Command> commands = new ArrayList<Command>();
  74             commands.add(new UniCreateCommand(dataBroker, changes));
  75             commands.add(new EvcCreateCommand(dataBroker, changes));
  76             invoker.setCommands(commands);
  77             invoker.invoke();
  78         }
  79     }
  80
  81     @Override
  82     public void update(Map<InstanceIdentifier<?>,
  83                        DataObject> changes) {
  84         if (changes != null) {
  85             List<Command> commands = new ArrayList<Command>();
  86             commands.add(new UniUpdateCommand(dataBroker, changes));
  87             commands.add(new EvcUpdateCommand(dataBroker, changes));
  88             invoker.setCommands(commands);
  89             invoker.invoke();
  90         }
  91     }
  92
  93     @Override
  94     public void delete(AsyncDataChangeEvent<InstanceIdentifier<?>,
  95                        DataObject> changes) {
  96         if (changes != null) {
  97             List<Command> commands = new ArrayList<Command>();
  98             commands.add(new UniDeleteCommand(dataBroker, changes));
  99             commands.add(new EvcDeleteCommand(dataBroker, changes));
 100             invoker.setCommands(commands);
 101             invoker.invoke();
 102         }
 103     }
 104
 105     @Override
 106     public void close() throws Exception {
 107         LOG.info("UnimgrDataChangeListener stopped.");
 108         for (ListenerRegistration<DataChangeListener> listener : listeners) {
 109             if (listener != null) {
 110                 listener.close();
 111             }
 112         }
 113     }
 114 }