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(
  48                 LogicalDatastoreType.CONFIGURATION, UnimgrMapper.createUniIid()
  49                 , this, DataChangeScope.SUBTREE));
  50         listeners.add(dataBroker.registerDataChangeListener(
  51                 LogicalDatastoreType.CONFIGURATION, UnimgrMapper.createEvcIid()
  52                 , this, DataChangeScope.SUBTREE));
  53         listeners.add(dataBroker.registerDataChangeListener(
  54                 LogicalDatastoreType.OPERATIONAL, UnimgrMapper.getOvsdbTopologyIdentifier()
  55                 , this, DataChangeScope.SUBTREE));
  56     }
  57
  58     @Override
  59     public void onDataChanged(
  60             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  61         create(change.getCreatedData());
  62         update(change.getUpdatedData());
  63         delete(change);
  64     }
  65
  66     @Override
  67     public void create(Map<InstanceIdentifier<?>, DataObject> changes) {
  68         if (changes != null) {
  69             List<Command> commands = new ArrayList<Command>();
  70             commands.add(new UniCreateCommand(dataBroker, changes));
  71             commands.add(new EvcCreateCommand(dataBroker, changes));
  72             invoker.setCommands(commands);
  73             invoker.invoke();
  74         }
  75     }
  76
  77     @Override
  78     public void update(Map<InstanceIdentifier<?>, DataObject> changes) {
  79         if (changes != null) {
  80             List<Command> commands = new ArrayList<Command>();
  81             commands.add(new UniUpdateCommand(dataBroker, changes));
  82             commands.add(new EvcUpdateCommand(dataBroker, changes));
  83             invoker.setCommands(commands);
  84             invoker.invoke();
  85         }
  86     }
  87
  88     @Override
  89     public void delete(
  90             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes) {
  91         if (changes != null) {
  92             List<Command> commands = new ArrayList<Command>();
  93             commands.add(new UniDeleteCommand(dataBroker, changes));
  94             commands.add(new EvcDeleteCommand(dataBroker, changes));
  95             invoker.setCommands(commands);
  96             invoker.invoke();
  97         }
  98     }
  99
 100     @Override
 101     public void close() throws Exception {
 102         LOG.info("UnimgrDataChangeListener stopped.");
 103         for (ListenerRegistration<DataChangeListener> listener : listeners) {
 104             if (listener != null) {
 105                 listener.close();
 106             }
 107         }
 108     }
 109 }