openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/queue/TicketFinisher.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 package org.opendaylight.openflowplugin.openflow.md.queue;
   9
  10 import java.util.Collection;
  11 import java.util.List;
  12 import java.util.Map;
  13 import java.util.concurrent.BlockingQueue;
  14 import java.util.concurrent.ExecutionException;
  15
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 /**
  20  * @param <OUT> result type
  21  *
  22  */
  23 public class TicketFinisher<OUT> implements Runnable {
  24
  25     private static final Logger LOG = LoggerFactory
  26             .getLogger(TicketFinisher.class);
  27
  28     private final BlockingQueue<TicketResult<OUT>> queue;
  29     private final Map<Class<? extends OUT>, Collection<PopListener<OUT>>> popListenersMapping;
  30     private final RegisteredTypeExtractor<OUT> registeredOutTypeExtractor;
  31
  32     /**
  33      * @param queue
  34      * @param popListenersMapping
  35      * @param registeredOutTypeExtractor
  36      */
  37     public TicketFinisher(BlockingQueue<TicketResult<OUT>> queue,
  38             Map<Class<? extends OUT>, Collection<PopListener<OUT>>> popListenersMapping,
  39             RegisteredTypeExtractor<OUT> registeredOutTypeExtractor) {
  40         this.queue = queue;
  41         this.popListenersMapping = popListenersMapping;
  42         this.registeredOutTypeExtractor = registeredOutTypeExtractor;
  43     }
  44
  45
  46     @Override
  47     public void run() {
  48         while (true) {
  49             try {
  50                 //TODO:: handle shutdown of queue
  51                 TicketResult<OUT> result = queue.take();
  52                 long before = System.nanoTime();
  53                 LOG.debug("finishing ticket(before): {}, {} remain in queue, {} capacity remaining", System.identityHashCode(result),queue.size(), queue.remainingCapacity());
  54                 List<OUT> processedMessages = result.getResult().get();
  55                 long after = System.nanoTime();
  56                 LOG.debug("finishing ticket(after): {}, {} remain in queue, {} capacity remaining, processingTime {} ns", System.identityHashCode(result),queue.size(), queue.remainingCapacity(),after-before);
  57                 for (OUT msg : processedMessages) {
  58                     Class<? extends Object> registeredType =
  59                             registeredOutTypeExtractor.extractRegisteredType(msg);
  60                     Collection<PopListener<OUT>> popListeners = popListenersMapping.get(registeredType);
  61                     if (popListeners == null) {
  62                         LOG.warn("no popListener registered for type {}"+registeredType);
  63                     } else {
  64                         for (PopListener<OUT> consumer : popListeners) {
  65                             consumer.onPop(msg);
  66                         }
  67                     }
  68                 }
  69             } catch (Exception e) {
  70                 LOG.error(e.getMessage(), e);
  71             }
  72         }
  73     }
  74 }