Implemented VirtualPrinterDriver project

Common/VirtualPrinter.Logging/IVirtualPrinterLogger.cs

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+using System;
+
+using JetBrains.Annotations;
+
+namespace VirtualPrinter.Logging
+{
+    // ReSharper disable once UnusedTypeParameter
+    public interface IVirtualPrinterLogger<out T> : IVirtualPrinterLogger
+    { }
+
+    public interface IVirtualPrinterLogger
+    {
+        /// <summary>
+        /// Gets the name of the logger.
+        /// </summary>
+        string Name { get; }
+
+        /// <summary>
+        /// A value of true if logging is enabled for the Debug level, otherwise it returns false.
+        /// </summary>
+        bool IsDebugEnabled { get; }
+
+        /// <summary>
+        /// A value of true if logging is enabled for the Trace level, otherwise it returns false.
+        /// </summary>
+        bool IsTraceEnabled { get; }
+
+        /// <summary>
+        /// Writes the exception at the <c>Error</c> level.
+        /// </summary>
+        /// <param name="exception">An exception to be logged.</param>
+        void Error([CanBeNull]Exception exception);
+
+        /// <summary>
+        /// Writes the diagnostic message and exception at the <c>Error</c> level.
+        /// </summary>
+        /// <param name="exception">An exception to be logged.</param>
+        /// <param name="message">A <see langword="string" /> to be written.</param>
+        /// <param name="args">Arguments to format.</param>
+        void Error([CanBeNull]Exception exception, [CanBeNull]string message, [CanBeNull, ItemCanBeNull]params object[] args);
+
+        /// <summary>
+        /// Something failed; application may or may not continue
+        /// Writes the diagnostic message and exception at the <c>Error</c> level.
+        /// </summary>
+        /// <param name="message">A <see langword="string" /> to be written.</param>
+        /// <param name="args">Arguments to format.</param>
+        void Error([CanBeNull]string message, [CanBeNull, ItemCanBeNull]params object[] args);
+
+        /// <summary>
+        /// Something unexpected; application will continue
+        /// Writes the diagnostic message at the <c>Warn</c> level using the specified parameters.
+        /// </summary>
+        /// <param name="message">A <see langword="string" /> containing format items.</param>
+        /// <param name="args">Arguments to format.</param>
+        void Warn([CanBeNull]string message, [CanBeNull, ItemCanBeNull]params object[] args);
+
+        /// <summary>
+        /// Normal behavior like mail sent, user updated profile etc.
+        /// Writes the diagnostic message at the <c>Info</c> level using the specified parameters.
+        /// </summary>
+        /// <param name="message">A <see langword="string" /> containing format items.</param>
+        /// <param name="args">Arguments to format.</param>
+        void Info([CanBeNull]string message, [CanBeNull, ItemCanBeNull]params object[] args);
+
+        /// <summary>
+        /// For debugging; executed query, user authenticated, session expired
+        /// Writes the diagnostic message at the <c>Debug</c> level using the specified parameters.
+        /// </summary>
+        /// <param name="message">A <see langword="string" /> containing format items.</param>
+        /// <param name="args">Arguments to format.</param>
+        void Debug([CanBeNull]string message, [CanBeNull, ItemCanBeNull]params object[] args);
+
+        /// <summary>
+        /// Writes the diagnostic message at the <c>Trace</c> level using the specified parameters.
+        /// </summary>
+        /// <param name="message">A <see langword="string" /> containing format items.</param>
+        /// <param name="args">Arguments to format.</param>
+        void Trace([CanBeNull]string message, [CanBeNull, ItemCanBeNull]params object[] args);
+    }
+}

Common/VirtualPrinter.Logging/LoggerModule.cs

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+using Autofac;
+using Autofac.Extras.NLog;
+
+namespace VirtualPrinter.Logging
+{
+    public class LoggerModule : Module
+    {
+        protected override void Load(ContainerBuilder builder)
+        {
+            builder.RegisterModule<NLogModule>();
+            builder.RegisterInstance(NLog.LogManager.GetCurrentClassLogger()).As<NLog.ILogger>().SingleInstance();
+            builder.RegisterGeneric(typeof(VirtualPrinterLogger<>))
+                   .As(typeof(IVirtualPrinterLogger<>))
+                   .SingleInstance();
+        }
+    }
+}

Common/VirtualPrinter.Logging/NLog.config

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+<?xml version="1.0" encoding="utf-8" ?>
+<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd"
+      autoReload="true"
+      throwExceptions="false"
+      internalLogLevel="Off" internalLogFile="c:\temp\nlog-internal.log">
+
+  <variable name="log_title" value="${processname}"/>
+
+  <targets>
+    <target name="console" xsi:type="ColoredConsole" layout="${longdate} ${level} ${message} ${exception:format=ToString}"/>
+    <target xsi:type="EventLog"
+            name="eventlog"
+            log ="Application"
+            source="${var:log_title}"
+            layout="${message}${newline}${exception:format=ToString}">
+    </target>
+  </targets>
+
+  <rules>
+    <logger name="*" minlevel="Debug" writeTo="console" />
+    <logger name="*" minlevel="Info" writeTo="eventlog" />
+  </rules>
+</nlog>

Common/VirtualPrinter.Logging/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("VirtualPrinter.Logging")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("aa25364d-22d5-44b0-86a5-6fb14c686308")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Common/VirtualPrinter.Logging/VirtualPrinter.Logging.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{AA25364D-22D5-44B0-86A5-6FB14C686308}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>VirtualPrinter.Logging</RootNamespace>
+    <AssemblyName>VirtualPrinter.Logging</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>none</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>..\..\Files</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.ComponentModel.Composition" />
+    <Reference Include="System.Configuration" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.IO.Compression" />
+    <Reference Include="System.Runtime.Serialization" />
+    <Reference Include="System.ServiceModel" />
+    <Reference Include="System.Transactions" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="IVirtualPrinterLogger.cs" />
+    <Compile Include="LoggerModule.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="VirtualPrinterLogger.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="NLog.config">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Autofac" Version="6.0.0" />
+    <PackageReference Include="Autofac.Extras.NLog" Version="4.0.0" />
+    <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="5.0.0-rc.2.20475.5" />
+    <PackageReference Include="NLog" Version="4.6.1" />
+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="5.0.0-rc.2.20475.5" />
+    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

Common/VirtualPrinter.Logging/VirtualPrinterLogger.cs

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+using System;
+using System.CodeDom;
+using System.CodeDom.Compiler;
+using System.IO;
+
+using JetBrains.Annotations;
+
+using NLog;
+
+namespace VirtualPrinter.Logging
+{
+    public class VirtualPrinterLogger<T> : VirtualPrinterLogger, IVirtualPrinterLogger<T>
+    {
+        public VirtualPrinterLogger() : base(ReadableTypeName.Generate(typeof(T)))
+        {
+        }
+    }
+
+    public static class ReadableTypeName
+    {
+        [NotNull]
+        public static string Generate([NotNull]Type type)
+        {
+            if (type == null)
+            {
+                throw new ArgumentNullException(nameof(type));
+            }
+
+            var provider = CodeDomProvider.CreateProvider("C#");
+            var typeReferenceExpression = new CodeTypeReferenceExpression(type);
+            using (var writer = new StringWriter())
+            {
+                provider.GenerateCodeFromExpression(typeReferenceExpression, writer, new CodeGeneratorOptions());
+                return writer.GetStringBuilder().ToString();
+            }
+        }
+    }
+
+    public class VirtualPrinterLogger : IVirtualPrinterLogger
+    {
+        private readonly ILogger _logger;
+
+        public VirtualPrinterLogger([NotNull]string loggerName)
+        {
+            if (string.IsNullOrWhiteSpace(loggerName))
+            {
+                throw new ArgumentNullException(nameof(loggerName));
+            }
+
+            _logger = LogManager.GetLogger(loggerName);
+        }
+
+        public string Name
+        {
+            get { return _logger.Name; }
+        }
+
+        public bool IsDebugEnabled
+        {
+            get { return _logger.IsDebugEnabled; }
+        }
+
+        public bool IsTraceEnabled
+        {
+            get { return _logger.IsTraceEnabled; }
+        }
+
+        public void Error(Exception exception)
+        {
+            _logger.Error(exception);
+        }
+
+        public void Error(Exception exception, string message, params object[] args)
+        {
+            _logger.Error(exception, message, args);
+        }
+
+        public void Error(string message, params object[] args)
+        {
+            _logger.Error(message, args);
+        }
+
+        public void Warn(string message, params object[] args)
+        {
+            _logger.Warn(message, args);
+        }
+
+        public void Info(string message, params object[] args)
+        {
+            _logger.Info(message, args);
+        }
+
+        public void Debug(string message, params object[] args)
+        {
+            _logger.Debug(message, args);
+        }
+
+        public void Trace(string message, params object[] args)
+        {
+            _logger.Trace(message, args);
+        }
+    }
+}