opendaylight/config/threadpool-config-impl/src/main/java/org/opendaylight/controller/config/threadpool/util/CloseableEventBus.java

   1 /*
   2  * Copyright (c) 2013 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.controller.config.threadpool.util;
  10
  11 import com.google.common.eventbus.DeadEvent;
  12 import com.google.common.eventbus.EventBus;
  13 import com.google.common.eventbus.Subscribe;
  14 import java.io.Closeable;
  15 import org.opendaylight.controller.config.yang.threadpool.impl.EventBusRuntimeMXBean;
  16 import org.opendaylight.controller.config.yang.threadpool.impl.EventBusRuntimeRegistration;
  17 import org.opendaylight.controller.config.yang.threadpool.impl.EventBusRuntimeRegistrator;
  18
  19 /**
  20  * Closeable {@link EventBus}.
  21  */
  22 /**
  23  * To be removed in Nitrogen
  24  */
  25 @Deprecated
  26 public class CloseableEventBus extends EventBus implements Closeable {
  27
  28     private final EventBusRuntimeRegistration rootRegistration;
  29
  30     public CloseableEventBus(String identifier, EventBusRuntimeRegistrator rootRegistrator) {
  31         super(identifier);
  32         rootRegistration = rootRegistrator.register(new EventBusRuntimeMXBean() {
  33             private long deadEventsCounter = 0;
  34
  35             @Subscribe
  36             public void increaseDeadEvents(DeadEvent deadEvent) {
  37                 deadEventsCounter++;
  38             }
  39
  40             @Override
  41             public Long countDeadEvents() {
  42                 return deadEventsCounter;
  43             }
  44         });
  45
  46     }
  47
  48     @Override
  49     public void close() {
  50         rootRegistration.close();
  51
  52     }
  53 }