1 | package omq.server; |
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2 | |
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3 | import omq.common.util.ParameterQueue; |
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4 | import omq.exception.SerializerException; |
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5 | |
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6 | import org.apache.log4j.Logger; |
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7 | |
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8 | import com.rabbitmq.client.ConsumerCancelledException; |
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9 | import com.rabbitmq.client.QueueingConsumer; |
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10 | import com.rabbitmq.client.QueueingConsumer.Delivery; |
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11 | import com.rabbitmq.client.ShutdownSignalException; |
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12 | |
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13 | public class MultiInvocationThread extends AInvocationThread { |
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14 | |
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15 | private static final Logger logger = Logger.getLogger(MultiInvocationThread.class.getName()); |
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16 | private static final String multi = "multi#"; |
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17 | |
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18 | // Consumer |
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19 | private String multiQueue; |
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20 | |
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21 | public MultiInvocationThread(RemoteObject obj) throws Exception { |
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22 | super(obj); |
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23 | } |
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24 | |
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25 | @Override |
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26 | public void run() { |
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27 | while (!killed) { |
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28 | try { |
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29 | // Get the delivery |
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30 | Delivery delivery = consumer.nextDelivery(); |
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31 | // This thread does not need to set busy because it's mandatory |
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32 | // to exist |
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33 | executeTask(delivery); |
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34 | } catch (InterruptedException i) { |
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35 | logger.error(i); |
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36 | } catch (ShutdownSignalException e) { |
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37 | logger.error(e); |
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38 | try { |
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39 | if (channel.isOpen()) { |
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40 | channel.close(); |
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41 | } |
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42 | startQueues(); |
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43 | } catch (Exception e1) { |
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44 | try { |
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45 | long milis = Long.parseLong(env.getProperty(ParameterQueue.RETRY_TIME_CONNECTION, "2000")); |
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46 | Thread.sleep(milis); |
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47 | } catch (InterruptedException e2) { |
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48 | logger.error(e2); |
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49 | } |
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50 | logger.error(e1); |
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51 | } |
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52 | } catch (ConsumerCancelledException e) { |
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53 | logger.error(e); |
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54 | } catch (SerializerException e) { |
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55 | logger.error(e); |
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56 | } catch (Exception e) { |
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57 | e.printStackTrace(); |
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58 | logger.error(e); |
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59 | } |
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60 | |
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61 | } |
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62 | logger.info("ObjectMQ ('" + obj.getRef() + "') InvocationThread " + Thread.currentThread().getId() + " is killed"); |
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63 | } |
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64 | |
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65 | @Override |
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66 | protected void startQueues() throws Exception { |
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67 | // Start channel |
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68 | channel = broker.getNewChannel(); |
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69 | |
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70 | /* |
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71 | * Multi queue, exclusive per each instance |
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72 | */ |
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73 | |
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74 | // Get info about the multiQueue |
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75 | String multiExchange = multi + reference; |
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76 | // TODO:String multiExchange = multi + exchange + reference; |
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77 | multiQueue = env.getProperty(ParameterQueue.MULTI_QUEUE_NAME); |
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78 | |
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79 | // Multi queue (exclusive queue per remoteObject) |
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80 | boolean multiDurable = Boolean.parseBoolean(env.getProperty(ParameterQueue.DURABLE_MQUEUE, "false")); |
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81 | boolean multiExclusive = Boolean.parseBoolean(env.getProperty(ParameterQueue.EXCLUSIVE_MQUEUE, "true")); |
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82 | boolean multiAutoDelete = Boolean.parseBoolean(env.getProperty(ParameterQueue.AUTO_DELETE_MQUEUE, "true")); |
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83 | |
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84 | // Declares and bindings |
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85 | channel.exchangeDeclare(multiExchange, "fanout"); |
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86 | if (multiQueue == null) { |
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87 | multiQueue = channel.queueDeclare().getQueue(); |
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88 | } else { |
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89 | channel.queueDeclare(multiQueue, multiDurable, multiExclusive, multiAutoDelete, null); |
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90 | } |
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91 | channel.queueBind(multiQueue, multiExchange, ""); |
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92 | logger.info("RemoteObject: " + reference + " declared fanout exchange: " + multiExchange + ", Queue: " + multiQueue + ", Durable: " |
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93 | + multiDurable + ", Exclusive: " + multiExclusive + ", AutoDelete: " + multiAutoDelete); |
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94 | |
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95 | /* |
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96 | * Consumer |
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97 | */ |
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98 | |
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99 | // Disable Round Robin behavior |
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100 | boolean autoAck = false; |
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101 | |
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102 | // Declare a new consumer |
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103 | consumer = new QueueingConsumer(channel); |
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104 | channel.basicConsume(multiQueue, autoAck, consumer); |
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105 | } |
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106 | |
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107 | } |
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