[44] | 1 | package omq.server; |
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| 2 | |
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| 3 | import java.lang.reflect.InvocationTargetException; |
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| 4 | import java.util.concurrent.BlockingQueue; |
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| 5 | |
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| 6 | import omq.common.message.Request; |
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| 7 | import omq.common.message.Response; |
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| 8 | import omq.common.util.Serializer; |
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| 9 | import omq.exception.OmqException; |
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| 10 | |
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| 11 | import com.rabbitmq.client.AMQP.BasicProperties; |
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| 12 | import com.rabbitmq.client.Channel; |
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| 13 | import com.rabbitmq.client.QueueingConsumer.Delivery; |
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| 14 | |
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| 15 | /** |
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| 16 | * |
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| 17 | * @author Sergi Toda <sergi.toda@estudiants.urv.cat> |
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| 18 | * |
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| 19 | */ |
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| 20 | public class InvocationThread extends Thread { |
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| 21 | private RemoteObject obj; |
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| 22 | private BlockingQueue<Delivery> deliveryQueue; |
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| 23 | private boolean killed = false; |
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| 24 | |
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| 25 | public InvocationThread(RemoteObject obj, BlockingQueue<Delivery> deliveryQueue) { |
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| 26 | this.obj = obj; |
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| 27 | this.deliveryQueue = deliveryQueue; |
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| 28 | } |
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| 29 | |
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| 30 | @Override |
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| 31 | public void run() { |
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| 32 | while (!killed) { |
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| 33 | try { |
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| 34 | // Get the delivery |
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| 35 | Delivery delivery = deliveryQueue.take(); |
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| 36 | |
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| 37 | // Deserialize the json |
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| 38 | Request request = Serializer.deserializeRequest(delivery.getBody(), obj); |
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| 39 | // Log.saveLog("Server-Deserialize", delivery.getBody()); |
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| 40 | |
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| 41 | String methodName = request.getMethod(); |
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| 42 | String requestID = request.getId(); |
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| 43 | |
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| 44 | System.out.println("Invoke method: " + methodName + " CorrID: " + requestID); |
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| 45 | |
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| 46 | // Invoke the method |
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| 47 | Object result = null; |
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| 48 | OmqException error = null; |
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| 49 | try { |
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| 50 | result = obj.invokeMethod(request.getMethod(), request.getParams()); |
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| 51 | } catch (InvocationTargetException e) { |
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| 52 | Throwable throwable = e.getTargetException(); |
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| 53 | error = new OmqException(throwable.getClass().getCanonicalName(), throwable.getMessage()); |
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| 54 | } catch (NoSuchMethodException e) { |
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| 55 | error = new OmqException(e.getClass().getCanonicalName(), e.getMessage()); |
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| 56 | } |
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| 57 | |
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| 58 | // Reply if it's necessary |
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| 59 | if (!request.isAsync()) { |
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| 60 | Response resp = new Response(request.getId(), obj.getRef(), result, error); |
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| 61 | |
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| 62 | Channel channel = obj.getChannel(); |
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| 63 | |
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| 64 | BasicProperties props = delivery.getProperties(); |
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| 65 | |
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| 66 | BasicProperties replyProps = new BasicProperties.Builder().appId(obj.getRef()).correlationId(props.getCorrelationId()).build(); |
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| 67 | |
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| 68 | byte[] bytesResponse = Serializer.serialize(resp); |
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| 69 | channel.basicPublish("", props.getReplyTo(), replyProps, bytesResponse); |
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| 70 | |
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| 71 | // Log.saveLog("Server-Serialize", bytesResponse); |
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| 72 | } |
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| 73 | |
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| 74 | } catch (InterruptedException i) { |
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| 75 | i.printStackTrace(); |
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| 76 | killed = true; |
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| 77 | } catch (Exception e) { |
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| 78 | System.out.println("Error a l'Invocation Thread \nException: " + e); |
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| 79 | e.printStackTrace(); |
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| 80 | } |
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| 81 | |
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| 82 | } |
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| 83 | } |
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| 84 | |
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| 85 | public RemoteObject getObj() { |
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| 86 | return obj; |
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| 87 | } |
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| 88 | |
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| 89 | public void setObj(RemoteObject obj) { |
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| 90 | this.obj = obj; |
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| 91 | } |
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| 92 | |
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| 93 | public BlockingQueue<Delivery> getDeliveryQueue() { |
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| 94 | return deliveryQueue; |
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| 95 | } |
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| 96 | |
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| 97 | public void setDeliveryQueue(BlockingQueue<Delivery> deliveryQueue) { |
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| 98 | this.deliveryQueue = deliveryQueue; |
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| 99 | } |
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| 100 | } |
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