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             Command uniCreate = new UniCreateCommand(dataBroker, changes);
  75             Command evcCreate = new EvcCreateCommand(dataBroker, changes);
  76             commands.add(uniCreate);
  77             commands.add(evcCreate);
  78             invoker.setCommands(commands);
  79             invoker.invoke();
  80         }
  81     }
  82
  83     @Override
  84     public void update(Map<InstanceIdentifier<?>,
  85                        DataObject> changes) {
  86         if (changes != null) {
  87             List<Command> commands = new ArrayList<Command>();
  88             Command uniUpdate = new UniUpdateCommand(dataBroker, changes);
  89             Command evcUpdate = new EvcUpdateCommand(dataBroker, changes);
  90             commands.add(uniUpdate);
  91             commands.add(evcUpdate);
  92             invoker.setCommands(commands);
  93             invoker.invoke();
  94         }
  95     }
  96
  97     @Override
  98     public void delete(AsyncDataChangeEvent<InstanceIdentifier<?>,
  99                        DataObject> changes) {
 100         if (changes != null) {
 101             List<Command> commands = new ArrayList<Command>();
 102             Command uniDelete = new UniDeleteCommand(dataBroker, changes);
 103             Command evcDelete = new EvcDeleteCommand(dataBroker, changes);
 104             commands.add(uniDelete);
 105             commands.add(evcDelete);
 106             invoker.setCommands(commands);
 107             invoker.invoke();
 108         }
 109     }
 110
 111     @Override
 112     public void close() throws Exception {
 113         LOG.info("UnimgrDataChangeListener stopped.");
 114         for (ListenerRegistration<DataChangeListener> listener : listeners) {
 115             if (listener != null) {
 116                 listener.close();
 117             }
 118         }
 119     }
 120 }