opendaylight/config/config-persister-feature-adapter/src/main/java/org/opendaylight/controller/configpusherfeature/internal/ConfigFeaturesListener.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 package org.opendaylight.controller.configpusherfeature.internal;
   9
  10 import java.util.concurrent.BlockingQueue;
  11 import java.util.concurrent.LinkedBlockingQueue;
  12
  13 import org.apache.karaf.features.FeatureEvent;
  14 import org.apache.karaf.features.FeaturesListener;
  15 import org.apache.karaf.features.FeaturesService;
  16 import org.apache.karaf.features.RepositoryEvent;
  17 import org.opendaylight.controller.config.persist.api.ConfigPusher;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public class ConfigFeaturesListener implements FeaturesListener, AutoCloseable {
  22     private static final Logger LOG = LoggerFactory.getLogger(ConfigFeaturesListener.class);
  23     private static final int QUEUE_SIZE = 1000;
  24     private BlockingQueue<FeatureEvent> queue = new LinkedBlockingQueue<>(QUEUE_SIZE);
  25     Thread pushingThread = null;
  26
  27     public ConfigFeaturesListener(final ConfigPusher configPusher, final FeaturesService featuresService) {
  28         pushingThread = new Thread(new ConfigPushingRunnable(configPusher, featuresService, queue),
  29                 "ConfigFeatureListener - ConfigPusher");
  30         pushingThread.start();
  31     }
  32
  33     @Override
  34     public void featureEvent(final FeatureEvent event) {
  35         queue.offer(event);
  36     }
  37
  38     @Override
  39     public void repositoryEvent(final RepositoryEvent event) {
  40         LOG.debug("Repository: {} {}", event.getType(), event.getRepository());
  41     }
  42
  43     @Override
  44     public void close() {
  45         if (pushingThread != null) {
  46             pushingThread.interrupt();
  47             pushingThread = null;
  48         }
  49     }
  50 }