Merge pull request '[Л/Р 4] Мутрисков Данила' (#192) from Hlop4ik4/distributed-computing:mutriskov-ds-lab-4 into main

Reviewed-on: http://student.git.athene.tech/v.moiseev/distributed-computing/pulls/192

tasks/mutriskov-ds/lab_4/.gitignore

@@ -0,0 +1,477 @@
+## Ignore Visual Studio temporary files, build results, and
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+##
+## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore
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+# User-specific files
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+# Visual Studio 2015/2017 cache/options directory
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+# Files built by Visual Studio
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+# Chutzpah Test files
+_Chutzpah*
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+# Visual C++ cache files
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+# Visual Studio code coverage results
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+# NCrunch
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+.*crunch*.local.xml
+nCrunchTemp_*
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+# MightyMoose
+*.mm.*
+AutoTest.Net/
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+# Web workbench (sass)
+.sass-cache/
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+# Installshield output folder
+[Ee]xpress/
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+# DocProject is a documentation generator add-in
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+DocProject/Help/*.HxT
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+# Click-Once directory
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+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
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+# Microsoft Azure Web App publish settings. Comment the next line if you want to
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+# NuGet Packages
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+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
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+*.nuget.props
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+# Microsoft Azure Build Output
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+*.build.csdef
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+# Microsoft Azure Emulator
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+# Windows Store app package directories and files
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+Package.StoreAssociation.xml
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+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
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+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
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+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
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+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
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+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
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+# Business Intelligence projects
+*.rdl.data
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+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
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+# Visual Studio 6 workspace options file
+*.opt
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+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio 6 auto-generated project file (contains which files were open etc.)
+*.vbp
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+# Visual Studio 6 workspace and project file (working project files containing files to include in project)
+*.dsw
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+# Visual Studio 6 technical files
+*.ncb
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+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
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+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
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+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
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+# Tabs Studio
+*.tss
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+# Telerik's JustMock configuration file
+*.jmconfig
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+# BizTalk build output
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+# OpenCover UI analysis results
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+# Azure Stream Analytics local run output
+ASALocalRun/
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+# MSBuild Binary and Structured Log
+*.binlog
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+*.nvuser
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+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
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+# Local History for Visual Studio
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+# Backup folder for Package Reference Convert tool in Visual Studio 2017
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+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
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+# Fody - auto-generated XML schema
+FodyWeavers.xsd
+
+# VS Code files for those working on multiple tools
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+*.code-workspace
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+# Local History for Visual Studio Code
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+# Windows Installer files from build outputs
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+# JetBrains Rider
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+##
+## Visual studio for Mac
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+
+# globs
+Makefile.in
+*.userprefs
+*.usertasks
+config.make
+config.status
+aclocal.m4
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+autom4te.cache/
+*.tar.gz
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+
+# Mac bundle stuff
+*.dmg
+*.app
+
+# content below from: https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# content below from: https://github.com/github/gitignore/blob/master/Global/Windows.gitignore
+# Windows thumbnail cache files
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+# Dump file
+*.stackdump
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+# Folder config file
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+
+# Recycle Bin used on file shares
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+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk

tasks/mutriskov-ds/lab_4/MainTask/Consumer-1/Consumer-1.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>Consumer_1</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/MainTask/Consumer-1/Consumer-1.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Consumer-1", "Consumer-1.csproj", "{A5680115-D317-4EA0-8823-C5EA1A6613E2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A5680115-D317-4EA0-8823-C5EA1A6613E2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A5680115-D317-4EA0-8823-C5EA1A6613E2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A5680115-D317-4EA0-8823-C5EA1A6613E2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A5680115-D317-4EA0-8823-C5EA1A6613E2}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/MainTask/Consumer-1/Program.cs

@@ -0,0 +1,34 @@
+using System.Text;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using var connection = factory.CreateConnection();
+using var channel = connection.CreateModel();
+
+Random rand = new Random();
+string queueName = $"queue1";
+
+channel.QueueDeclare(queue: queueName);
+channel.QueueBind(queue: queueName,
+    exchange: "reports",
+    routingKey: string.Empty);
+
+Console.WriteLine(" [*] Waiting for messages.");
+
+var consumer = new EventingBasicConsumer(channel);
+consumer.Received += async (model, ea) =>
+{
+    byte[] body = ea.Body.ToArray();
+    var message = Encoding.UTF8.GetString(body);
+
+    var reportNumber = message.Split('#')[1];
+    Console.WriteLine($" [x] Отчет #{reportNumber} создан.");
+    channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
+};
+channel.BasicConsume(queue: queueName,
+    autoAck: false,
+    consumer: consumer);
+
+Console.WriteLine(" Press [enter] to exit.");
+Console.ReadLine();

tasks/mutriskov-ds/lab_4/MainTask/Consumer-2/Consumer-2.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>Consumer_2</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/MainTask/Consumer-2/Consumer-2.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Consumer-2", "Consumer-2.csproj", "{7A5E13E1-8BCB-4749-9843-19F74D4B9FF3}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{7A5E13E1-8BCB-4749-9843-19F74D4B9FF3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7A5E13E1-8BCB-4749-9843-19F74D4B9FF3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7A5E13E1-8BCB-4749-9843-19F74D4B9FF3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7A5E13E1-8BCB-4749-9843-19F74D4B9FF3}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/MainTask/Consumer-2/Program.cs

@@ -0,0 +1,35 @@
+using System.Text;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using var connection = factory.CreateConnection();
+using var channel = connection.CreateModel();
+
+Random rand = new Random();
+string queueName = $"queue{rand.Next()}";
+
+channel.QueueDeclare(queue: queueName);
+channel.QueueBind(queue: queueName,
+    exchange: "reports",
+    routingKey: string.Empty);
+
+Console.WriteLine(" [*] Waiting for messages.");
+
+var consumer = new EventingBasicConsumer(channel);
+consumer.Received += async (model, ea) =>
+{
+    byte[] body = ea.Body.ToArray();
+    var message = Encoding.UTF8.GetString(body);
+
+    var reportNumber = message.Split('#')[1];
+    Thread.Sleep(2500);
+    Console.WriteLine($" [x] Отчет #{reportNumber} создан.");
+    channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
+};
+channel.BasicConsume(queue: queueName,
+    autoAck: false,
+    consumer: consumer);
+
+Console.WriteLine(" Press [enter] to exit.");
+Console.ReadLine();

tasks/mutriskov-ds/lab_4/MainTask/Publisher/Program.cs

@@ -0,0 +1,25 @@
+using System.Text;
+using RabbitMQ.Client;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using var connection = factory.CreateConnection();
+using var channel = connection.CreateModel();
+
+channel.ExchangeDeclare(exchange: "reports", type: ExchangeType.Fanout);
+Random rand = new Random();
+foreach (var item in Enumerable.Range(0, 1000))
+{
+    var message = $"Необходимо создать отчет #{rand.Next()}";
+
+    var body = Encoding.UTF8.GetBytes(message);
+    channel.BasicPublish(exchange: "reports",
+            routingKey: string.Empty,
+            basicProperties: null,
+            body: body);
+
+    Console.WriteLine($" [x] Поступила работа {message}");
+    await Task.Delay(1000);
+}
+
+Console.WriteLine(" Press [enter] to exit.");
+Console.ReadLine();

tasks/mutriskov-ds/lab_4/MainTask/Publisher/Publisher.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/MainTask/Publisher/Publisher.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Publisher", "Publisher.csproj", "{52E0A227-C95F-47C8-9062-B608AF65335E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{52E0A227-C95F-47C8-9062-B608AF65335E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{52E0A227-C95F-47C8-9062-B608AF65335E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{52E0A227-C95F-47C8-9062-B608AF65335E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{52E0A227-C95F-47C8-9062-B608AF65335E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/README.md

@@ -0,0 +1,149 @@
+# Отчет по лабораторной работе №4
+
+Выполнил студент гр. ИСЭбд-41 Мутрисков Д.С.
+
+## Прохождение tutorial
+
+Установил rabbitMQ server, erlang и зашел в брокер под гостем по http://localhost:15672/#/ 
+
+Туториал 1:
+
+![](images/tut1.png)
+
+Туториал 2:
+
+![](images/tut2.png)
+
+Туториал 3:
+
+![](images/tut3.png)
+
+## Разработка демонстрационных приложений
+
+Предметная область: Офис. Производитель - начальник, который посылает задачу на составление отчета, Потребители - работники офиса.
+
+1. Publisher
+
+```cs
+using System.Text;
+using RabbitMQ.Client;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using var connection = factory.CreateConnection();
+using var channel = connection.CreateModel();
+
+channel.ExchangeDeclare(exchange: "reports", type: ExchangeType.Fanout);
+Random rand = new Random();
+foreach (var item in Enumerable.Range(0, 1000))
+{
+    var message = $"Необходимо создать отчет #{rand.Next()}";
+
+    var body = Encoding.UTF8.GetBytes(message);
+    channel.BasicPublish(exchange: "reports",
+            routingKey: string.Empty,
+            basicProperties: null,
+            body: body);
+
+    Console.WriteLine($" [x] Поступила работа {message}");
+    await Task.Delay(1000);
+}
+
+Console.WriteLine(" Press [enter] to exit.");
+Console.ReadLine();
+
+```
+
+2. Consumer 1.
+
+```cs
+using System.Text;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using var connection = factory.CreateConnection();
+using var channel = connection.CreateModel();
+
+Random rand = new Random();
+string queueName = $"queue1";
+
+channel.QueueDeclare(queue: queueName);
+channel.QueueBind(queue: queueName,
+    exchange: "reports",
+    routingKey: string.Empty);
+
+Console.WriteLine(" [*] Waiting for messages.");
+
+var consumer = new EventingBasicConsumer(channel);
+consumer.Received += async (model, ea) =>
+{
+    byte[] body = ea.Body.ToArray();
+    var message = Encoding.UTF8.GetString(body);
+
+    var reportNumber = message.Split('#')[1];
+    Console.WriteLine($" [x] Отчет #{reportNumber} создан.");
+    channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
+};
+channel.BasicConsume(queue: queueName,
+    autoAck: false,
+    consumer: consumer);
+
+Console.WriteLine(" Press [enter] to exit.");
+Console.ReadLine();
+```
+
+3. Consumer 2.
+
+```cs
+using System.Text;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using var connection = factory.CreateConnection();
+using var channel = connection.CreateModel();
+
+Random rand = new Random();
+string queueName = $"queue{rand.Next()}";
+
+channel.QueueDeclare(queue: queueName);
+channel.QueueBind(queue: queueName,
+    exchange: "reports",
+    routingKey: string.Empty);
+
+Console.WriteLine(" [*] Waiting for messages.");
+
+var consumer = new EventingBasicConsumer(channel);
+consumer.Received += async (model, ea) =>
+{
+    byte[] body = ea.Body.ToArray();
+    var message = Encoding.UTF8.GetString(body);
+
+    var reportNumber = message.Split('#')[1];
+    Thread.Sleep(2500);
+    Console.WriteLine($" [x] Отчет #{reportNumber} создан.");
+    channel.BasicAck(deliveryTag: ea.DeliveryTag, multiple: false);
+};
+channel.BasicConsume(queue: queueName,
+    autoAck: false,
+    consumer: consumer);
+
+Console.WriteLine(" Press [enter] to exit.");
+Console.ReadLine();
+```
+
+## Результаты выполнения лабораторной работы
+
+Выполнение с одним потребителем с задержкой в выполении работы.
+
+![](images/c1-1.png)
+
+Очередь с работником без задержки в выполенении работы обрабатывается моментально и несет минимальную нагрузку.
+Очередь работника с задержкой в выполении работы довольно быстро загружается.
+
+Пример с двумя потребителями с задержкой в выполении работы
+
+![](images/c1-2.png)
+
+Очередь с работником без задержки в выполенении работы не изменилась.
+На очереди работников с задержкой в выполении работы закономерно тратится в 2 раза больше времени

tasks/mutriskov-ds/lab_4/tut1/Receive/Program.cs

@@ -0,0 +1,29 @@
+using System.Text;
+using System.Threading.Channels;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+
+using (var connection = factory.CreateConnection())
+{
+    using (var channel = connection.CreateModel())
+    {
+        channel.QueueDeclare("hello", false, false, false, null);
+
+        Console.WriteLine(" [*] Waiting for messages.");
+
+        var consumer = new EventingBasicConsumer(channel);
+        consumer.Received += (model, ea) =>
+        {
+            var body = ea.Body.ToArray();
+            var message = Encoding.UTF8.GetString(body);
+            Console.WriteLine($" [x] Received {message}");
+        };
+
+        channel.BasicConsume("hello", true, consumer);
+
+        Console.WriteLine(" Press [enter] to exit.");
+        Console.ReadLine();
+    }
+}

tasks/mutriskov-ds/lab_4/tut1/Receive/Receive.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/tut1/Receive/Receive.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Receive", "Receive.csproj", "{B9AB31AC-C084-4E24-84D3-13718DA7693B}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B9AB31AC-C084-4E24-84D3-13718DA7693B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B9AB31AC-C084-4E24-84D3-13718DA7693B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B9AB31AC-C084-4E24-84D3-13718DA7693B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B9AB31AC-C084-4E24-84D3-13718DA7693B}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/tut1/Send/Program.cs

@@ -0,0 +1,21 @@
+using System.Text;
+using RabbitMQ.Client;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using (var connection = factory.CreateConnection())
+{
+    using (var channel = connection.CreateModel())
+    {
+        channel.QueueDeclare("hello", false, false, false, null);
+
+        const string message = "Hello World!";
+        var body = Encoding.UTF8.GetBytes(message);
+
+        channel.BasicPublish(exchange: string.Empty, routingKey: "hello", basicProperties: null, body: body);
+
+        Console.WriteLine($" [x] Sent {message}");
+
+        Console.WriteLine(" Press [enter] to exit.");
+        Console.ReadLine();
+    }
+}

tasks/mutriskov-ds/lab_4/tut1/Send/Send.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/tut1/Send/Send.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Send", "Send.csproj", "{24DF6864-3F4A-4533-92E5-E2549605342C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{24DF6864-3F4A-4533-92E5-E2549605342C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{24DF6864-3F4A-4533-92E5-E2549605342C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{24DF6864-3F4A-4533-92E5-E2549605342C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{24DF6864-3F4A-4533-92E5-E2549605342C}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/tut2/NewTask/NewTask.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/tut2/NewTask/NewTask.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NewTask", "NewTask.csproj", "{3B9D9CBC-9064-46A1-AC07-CA5A7B72369A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{3B9D9CBC-9064-46A1-AC07-CA5A7B72369A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3B9D9CBC-9064-46A1-AC07-CA5A7B72369A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3B9D9CBC-9064-46A1-AC07-CA5A7B72369A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3B9D9CBC-9064-46A1-AC07-CA5A7B72369A}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/tut2/NewTask/Program.cs

@@ -0,0 +1,29 @@
+using System.Text;
+using RabbitMQ.Client;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using (var connection = factory.CreateConnection())
+{
+    using (var channel = connection.CreateModel())
+    {
+        channel.QueueDeclare("task_queue", true, false, false, null);
+
+        var message = GetMessage(args);
+        var body = Encoding.UTF8.GetBytes(message);
+
+        var properties = channel.CreateBasicProperties();
+        properties.Persistent = true;
+
+        channel.BasicPublish(string.Empty, "task_queue", properties, body);
+
+        Console.WriteLine($" [x] Sent {message}");
+
+        Console.WriteLine(" Press [enter] to exit.");
+        Console.ReadLine();
+    }
+}
+
+static string GetMessage(string[] args)
+{
+    return (args.Length > 0 ? string.Join(" ", args) : "Hello World!");
+}

tasks/mutriskov-ds/lab_4/tut2/Worker/Program.cs

@@ -0,0 +1,38 @@
+using System.Text;
+using System.Threading.Channels;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+
+using (var connection = factory.CreateConnection())
+{
+    using (var channel = connection.CreateModel())
+    {
+        channel.QueueDeclare("task_queue", true, false, false, null);
+
+        channel.BasicQos(0, 1, false);
+
+        Console.WriteLine(" [*] Waiting for messages.");
+
+        var consumer = new EventingBasicConsumer(channel);
+        consumer.Received += (model, ea) =>
+        {
+            byte[] body = ea.Body.ToArray();
+            var message = Encoding.UTF8.GetString(body);
+            Console.WriteLine($" [x] Received {message}");
+
+            int dots = message.Split('.').Length - 1;
+            Thread.Sleep(dots * 1000);
+
+            Console.WriteLine(" [x] Done");
+
+            channel.BasicAck(ea.DeliveryTag, false);
+        };
+
+        channel.BasicConsume("task_queue", false, consumer);
+
+        Console.WriteLine(" Press [enter] to exit.");
+        Console.ReadLine();
+    }
+}

tasks/mutriskov-ds/lab_4/tut2/Worker/Worker.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/tut2/Worker/Worker.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Worker", "Worker.csproj", "{C870D25E-DCF7-4FBC-BA55-0007CFDC6EF6}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C870D25E-DCF7-4FBC-BA55-0007CFDC6EF6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C870D25E-DCF7-4FBC-BA55-0007CFDC6EF6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C870D25E-DCF7-4FBC-BA55-0007CFDC6EF6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C870D25E-DCF7-4FBC-BA55-0007CFDC6EF6}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/tut3/NewTask/NewTask.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/tut3/NewTask/NewTask.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NewTask", "NewTask.csproj", "{7D0F8EEA-974B-4FA5-B4B6-039EA2F84926}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{7D0F8EEA-974B-4FA5-B4B6-039EA2F84926}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7D0F8EEA-974B-4FA5-B4B6-039EA2F84926}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7D0F8EEA-974B-4FA5-B4B6-039EA2F84926}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7D0F8EEA-974B-4FA5-B4B6-039EA2F84926}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

tasks/mutriskov-ds/lab_4/tut3/NewTask/Program.cs

@@ -0,0 +1,26 @@
+using System.Text;
+using RabbitMQ.Client;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using (var connection = factory.CreateConnection())
+{
+    using (var channel = connection.CreateModel())
+    {
+        channel.ExchangeDeclare("logs", ExchangeType.Fanout);
+
+        var message = GetMessage(args);
+        var body = Encoding.UTF8.GetBytes(message);
+
+        channel.BasicPublish("logs", string.Empty, null, body);
+
+        Console.WriteLine($" [x] Sent {message}");
+
+        Console.WriteLine(" Press [enter] to exit.");
+        Console.ReadLine();
+    }
+}
+
+static string GetMessage(string[] args)
+{
+    return (args.Length > 0 ? string.Join(" ", args) : "Hello World!");
+}

tasks/mutriskov-ds/lab_4/tut3/Receiver/Program.cs

@@ -0,0 +1,30 @@
+using System.Text;
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+
+var factory = new ConnectionFactory { HostName = "localhost" };
+using var connection = factory.CreateConnection();
+using var channel = connection.CreateModel();
+
+channel.ExchangeDeclare(exchange: "logs", type: ExchangeType.Fanout);
+
+var queueName = channel.QueueDeclare().QueueName;
+channel.QueueBind(queue: queueName,
+                  exchange: "logs",
+                  routingKey: string.Empty);
+
+Console.WriteLine(" [*] Waiting for logs.");
+
+var consumer = new EventingBasicConsumer(channel);
+consumer.Received += (model, ea) =>
+{
+    byte[] body = ea.Body.ToArray();
+    var message = Encoding.UTF8.GetString(body);
+    Console.WriteLine($" [x] {message}");
+};
+channel.BasicConsume(queue: queueName,
+                     autoAck: true,
+                     consumer: consumer);
+
+Console.WriteLine(" Press [enter] to exit.");
+Console.ReadLine();

tasks/mutriskov-ds/lab_4/tut3/Receiver/Receiver.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
+  </ItemGroup>
+
+</Project>

tasks/mutriskov-ds/lab_4/tut3/Receiver/Receiver.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Receiver", "Receiver.csproj", "{A9C00DE3-8D45-463F-B9BB-71E04A9F7826}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A9C00DE3-8D45-463F-B9BB-71E04A9F7826}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A9C00DE3-8D45-463F-B9BB-71E04A9F7826}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A9C00DE3-8D45-463F-B9BB-71E04A9F7826}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A9C00DE3-8D45-463F-B9BB-71E04A9F7826}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal