110 lines
3.5 KiB
C#
110 lines
3.5 KiB
C#
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Threading;
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using Amqp.Framing;
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using Amqp;
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using System.Threading.Tasks;
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namespace Artemis.Perf
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{
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/**
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* This class will start many consumers underneath it to satisfy a pool of consumers
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* While calling a single callback for when messages are received.
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*/
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public class ReceiverPool
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{
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public delegate void MessageReceived(int id, Session session, ReceiverLink link, Message msg);
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public int MessagesReceived;
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MessageReceived _callback;
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int _Workers;
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private Object receiverLock = new Object();
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private Boolean running = true;
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private ReceiverLink[] Receivers;
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private Session[] Sessions;
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private Connection _Connection;
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private int Credits;
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public ReceiverPool(Connection Connection, int Workers, String queue, int Credits, MessageReceived callback)
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{
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this._Connection = Connection;
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this.Receivers = new ReceiverLink[Workers];
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this.Sessions = new Session[Workers];
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for (int i = 0; i < Workers; i++)
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{
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// I was playing with using a single session versus multiple sessions
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if (i == 0) {
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Sessions[i] = new Session(Connection);
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}
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else {
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Sessions[i] = Sessions[0];
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}
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Receivers[i] = new ReceiverLink(Sessions[i], "receiver " + queue + " " + i, queue);
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}
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this._Workers = Workers;
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this._callback = callback;
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this.Credits = Credits;
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}
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public void stop() {
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running = false;
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for (int i = 0; i < _Workers; i++) {
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Receivers[i].Close();
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Sessions[i].Close();
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}
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}
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public void start() {
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for (int i = 0; i < _Workers; i++) {
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{
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// This variable exists otherwise we would get an olderValue of i
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int value = i;
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Task.Factory.StartNew(() => WorkerRun(value), TaskCreationOptions.LongRunning);
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}
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}
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}
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void WorkerRun(int i) {
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try {
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Receivers[i].SetCredit(Credits);
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while (running)
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{
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Message theMessage = Receivers[i].Receive(TimeSpan.FromSeconds(1));
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if (theMessage != null)
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{
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_callback(i, Sessions[i], Receivers[i], theMessage);
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}
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}
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} catch (Exception e) {
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Console.WriteLine(e);
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}
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}
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}
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}
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