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    • Neon
      • Build
    • Neon.Blazor
      • BlazorHelper
      • BodyOutlet
      • ClientRenderContext
      • DOMRectReadOnly
      • EventHandlers
      • FileDownloader
      • HtmlElement
      • IRenderContext
      • IntersectionChangedEventArgs
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    • Neon.Blazor.Analyzers
      • SvgGenerator
      • SvgGenerator.Svg
    • Neon.BuildInfo
      • ThisAssembly
      • ThisAssembly.Git
      • ThisAssembly.Git.BaseVersion
      • ThisAssembly.Git.SemVer
    • Neon.CSharp
      • CSharpHelper
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    • Neon.Cassandra
      • KeyspaceStatus
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      • SessionExtensions
    • Neon.Collections
      • ArgDictionary
      • Bits
      • IObjectDictionary
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      • ObjectDictionary
    • Neon.Common
      • AppDomainExtensions
      • Block
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      • ByteEncoding
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      • CommandLine
      • CommandLine.OptionDefinition
      • CommandLine.Redactor
      • CpuArchitecture
      • Credentials
      • DateTimeExtensions
      • EnumExtensions
      • EnvironmentParser
      • EnvironmentParser.Parser<T>
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      • ExceptionExtensions
      • ExecuteException
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      • GlobPattern
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      • HttpClientExtensions
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      • IEnumerableExtensions
      • ILabeled
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      • IServiceContainer
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      • LabelSelector
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      • NeonAssemblyExtensions
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      • WindowsEdition
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      • YamlDotNetExtensions
    • Neon.Cryptography
      • AesCipher
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      • NeonVault
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    • Neon.Csv
      • CsvReader
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    • Neon.Data
      • DateTimeJsonConverter
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      • IPersistableType
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      • IRoundtripData
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      • NotifyPropertyChanged
      • RoundtripDataFactory
      • RoundtripDataHelper
      • TimeSpanJsonConverter
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    • Neon.Deployment
      • AwsCli
      • DeploymentException
      • DeploymentHelper
      • DownloadManifest
      • DownloadPart
      • DownloadProgressDelegate
      • DownloadProgressType
      • GitHub
      • GitHubActionsApi
      • GitHubPackage
      • GitHubPackageApi
      • GitHubPackageType
      • GitHubPackageVersion
      • GitHubPackageVisibility
      • GitHubReleaseApi
      • GitHubRepoPath
      • GitHubTagApi
      • IProfileClient
      • IProfileRequest
      • IProfileResponse
      • MaintainerProfile
      • NotifyClient
      • OnePassword
      • OnePasswordException
      • ProfileException
      • ProfileHandlerResult
      • ProfileRequest
      • ProfileResponse
      • ProfileServer
      • ProfileStatus
      • XenServer
    • Neon.Deployment.CodeSigning
      • AzureProfile
      • CodeSigner
      • UsbTokenProfile
    • Neon.Diagnostics
      • AssertException
      • ConfigExtensions
      • ConsoleJsonLogExporter
      • ConsoleJsonLogExporterOptions
      • ConsoleTextLogExporter
      • ConsoleTextLogExporterOptions
      • ExceptionInfo
      • FileLogExporter
      • FileLogExporterFormat
      • FileLogExporterOptions
      • LogAsTraceProcessor
      • LogAsTraceProcessorOptions
      • LogAttributeNames
      • LogAttributes
      • LogEvent
      • LogEventInterceptor
      • LoggerExtensions
      • NullLogger
      • TelemetryHub
      • TelemetrySpanEventNames
      • TelemetrySpanExtensions
    • Neon.Docker
      • DockerClient
      • DockerNetwork
      • DockerNetworkContainer
      • DockerNetworkIpam
      • DockerNode
      • DockerNodeManagerStatus
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      • ServiceBindOptions
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      • ServiceContainerSpec
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      • ServiceVolumeDriverConfig
      • ServiceVolumeOptions
      • VolumeListResponse
    • Neon.GitHub
      • GitExtensions
      • GitHubCredentials
      • GitHubRepo
      • LocalRepoApi
      • NoLocalRepositoryException
      • RemoteRepoApi
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      • RemoteRepoPath
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    • Neon.HyperV
      • HyperVClient
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      • NetAdapter
      • VirtualDrive
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      • VirtualMachine
      • VirtualMachineNetworkAdapter
      • VirtualMachineState
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      • VirtualSwitchType
    • Neon.IO
      • BlockStream
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      • IStaticDirectory
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      • StaticFileBase
      • SubStream
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    • Neon.JsonConverters
      • JsonDateTimeConverter
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      • JsonNullableDateTimeConverter
    • Neon.ModelGen
      • ActionResult<T>
      • ApiVersion
      • ApiVersionAttribute
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      • GeneratedClientAttribute
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      • HashSourceAttribute
      • HttpAttribute
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      • HttpOptionsAttribute
      • HttpPatchAttribute
      • HttpPostAttribute
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      • IActionResult
      • ModelGenerator
      • ModelGeneratorOutput
      • ModelGeneratorSettings
      • NoCodeGenAttribute
      • NoControllerValidationAttribute
      • PassAs
      • PersistableAttribute
      • PersistableKeyAttribute
      • RouteAttribute
      • ServiceModelAttribute
      • TargetAttribute
      • UxFrameworks
    • Neon.Net
      • HttpApiException
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      • JsonClient
      • JsonClientPayload
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      • Jwt
      • LocalHostSection
      • NetConst
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      • NetworkCidr
      • NetworkConfiguration
      • NetworkException
      • NetworkPorts
      • Pinger
      • ReachableHost
      • ReachableHostMode
      • StreamDocument
    • Neon.Postgres
      • ConnectionExtensions
      • DatabaseStatus
      • PreparedCommand
      • ReaderAsyncEnumerator
      • ReaderEnumerator
      • ReaderExtensions
      • SchemaManager
      • SchemaManagerException
      • SchemaStatus
    • Neon.Retry
      • ExponentialRetryPolicy
      • IRetryPolicy
      • LinearRetryPolicy
      • NoRetryPolicy
      • RetryPolicy
      • RetryPolicyBase
      • RetryTransientArgs
      • TransientDetector
      • TransientException
    • Neon.Roslyn
      • DisplayFormat
      • DocumentationComment
      • DocumentationItem
      • MetadataLoadContext
      • RoslynAssembly
      • RoslynConstructorInfo
      • RoslynCustomAttributeData
      • RoslynExtensions
      • RoslynFieldInfo
      • RoslynMethodInfo
      • RoslynParameterInfo
      • RoslynPropertyInfo
      • RoslynType
      • SharedUtilities
    • Neon.Roslyn.Xunit
      • AdditionalSourceText
      • CompilationOptions
      • CompilationOptionsProvider
      • TestCompilation
      • TestCompilationAssertions
      • TestCompilationBuilder
      • TestCompilationBuilderExtensions
      • TestCompilationExtensions
    • Neon.SSH
      • CommandBundle
      • CommandFile
      • CommandResponse
      • HostFolders
      • IBashCommandFormatter
      • ILinuxSshProxy
      • LinuxDiskInfo
      • LinuxDiskPartition
      • LinuxSshProxy
      • LinuxSshProxy<TMetadata>
      • NamespaceDoc
      • RemoteCommandException
      • RunOptions
      • SshCredentials
      • SshExtensions
      • SshProxyException
    • Neon.Service
      • LogMetricsProcessor
      • MetricsMode
      • MetricsOptions
      • NeonService
      • NeonServiceOptions
      • NeonServiceStatus
      • OtelConfigExtensions
      • OtlpCollectorChecker
      • ProcessTerminator
      • ServiceApiContact
      • ServiceApiInfo
      • ServiceApiLicense
      • ServiceDependencies
      • ServiceDescription
      • ServiceEndpoint
      • ServiceEndpointProtocol
      • ServiceEndpoints
      • ServiceMap
    • Neon.SignalR
      • DependencyInjectionExtensions
      • DnsCache
      • GroupAction
      • GroupCommand
      • IDnsCache
      • Invocation
      • NatsHubLifetimeManager<THub>
      • ProxyConfig
      • ServiceCollectionExtensions
      • ServiceDiscovey
      • SignalrProxyMiddleware
      • SignalrProxyMiddlewareExtensions
      • TracerProviderBuilderExtensions
    • Neon.Tailwind
      • ClickOffEventHandler
      • ComponentEventArgs<TSender>
      • ComponentEventArgs<TSender, TEventArgs>
      • DisclosureState
      • EventHandlerComponentBase<TComponent>
      • HeadlessButton
      • HeadlessDialog
      • HeadlessDialogPanel
      • HeadlessDisclosure
      • HeadlessDisclosureButton
      • HeadlessDisclosurePanel
      • HeadlessListboxButton<TValue>
      • HeadlessListboxLabel<TValue>
      • HeadlessListboxOption<TValue>
      • HeadlessListboxOptions<TValue>
      • HeadlessListbox<TValue>
      • HeadlessMenu
      • HeadlessMenuButton
      • HeadlessMenuItem
      • HeadlessMenuItems
      • HeadlessSwitch
      • HeadlessSwitchGroup
      • HeadlessSwitchLabel
      • IPortalBinder
      • KeyDownEventHandler
      • KeyboardKey
      • ListboxFocus
      • ListboxState
      • MenuFocus
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      • Portal
      • PortalBinder
      • PortalContent
      • SearchAssistant
      • TailwindExtensions
      • Transition
      • TransitionGroup
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    • Neon.Tasks
      • Async
      • AsyncAutoResetEvent
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      • AsyncPeriodicTask
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      • NonDisposableTask<T>
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      • SyncContextMode
    • Neon.Temporal
      • ActivityHelper
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      • TemporalEnricherTagNames
      • WorkflowLogEnricher
    • Neon.Time
      • GatedTimer
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      • RecurringTimerType
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    • Neon.WSL
      • Wsl2Proxy
    • Neon.Web
      • AesProtector
      • DataProtectionExtensions
      • NeonController
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      • RoundTripJsonInputFormatter
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      • TracerProviderBuilderExtensions
      • WebHelper
    • Neon.WinTTY
      • ConsoleTTY
    • Neon.Windows
      • MEMORYSTATUSEX
      • PowerShellException
      • Win32
    • Neon.XenServer
      • IXenClient
      • XenClient
      • XenClient.MachineOperations
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      • XenException
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    • Neon.Xunit
      • AnsiblePlayResults
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      • AspNetFixture
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      • DockerComposeFixture
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      • XunitExtensions
    • Neon.Xunit.YugaByte
      • YugaByteFixture
    • Neon.YugaByte
      • YugaByteHelper

    Class TelemetryHub

    Provides a standard global place where libraries and applications can gain access to the application's ActivitySource and LoggerFactory for recording traces and logs. Applications that enable tracing and logging and want to enable logging and tracing by Neon libraries set LoggerFactory and ActivitySource immediately after configuring telemetry using the OpenTelemetry and Microsoft.Extensions.Logging APIs.

    note

    The Neon.Service.NeonService class initializes these properties by default when used by applications based on this class.

    CreateLogger<T>(LogAttributes, bool, bool), CreateLogger(Type, LogAttributes, bool, bool), or CreateLogger(string, LogAttributes, bool, bool) are helper methods for obtaining loggers.

    You can also set the LogAttributes property to attributes you'd like to include in the loggers returned by the CreateLogger() methods. This is a handy way to include a common set of attributes with all logged events.

    The ParseLogLevel(string, LogLevel) utility can be used to parse a log level string obtained from an environment variable or elsewhere. This returns the parsed log level and also sets the Logging__LogLevel__Microsoft environment variable which will be honored by any created loggers.

    Inheritance
    object
    TelemetryHub
    Namespace: Neon.Diagnostics
    Assembly: Neon.Common.dll
    Syntax
    public static class TelemetryHub

    Properties

    ActivitySource

    Holds the global activity source used by Neon and perhaps other libraries for emitting traces. This defaults to null which means that libraries won't emit any traces by default. Programs should set this after configuring tracing.

    Declaration
    public static ActivitySource ActivitySource { get; set; }
    Property Value
    Type Description
    ActivitySource

    LogAttributes

    Optionally holds any LogAttributes that will be added to ILogger instances returned by CreateLogger(string, LogAttributes, bool, bool), CreateLogger(Type, LogAttributes, bool, bool), or CreateLogger<T>(LogAttributes, bool, bool).

    Declaration
    public static LogAttributes LogAttributes { get; set; }
    Property Value
    Type Description
    LogAttributes

    LoggerFactory

    Holds the global ILoggerFactory used by the Neon and perhaps other libraries for emitting logs. This defaults to null which means that libraries won't emit any logs by default. Programs should set this after configuring logging.

    Declaration
    public static ILoggerFactory LoggerFactory { get; set; }
    Property Value
    Type Description
    ILoggerFactory

    Methods

    CreateLogger(string, LogAttributes, bool, bool)

    Returns an ILogger using the category name passed.

    Declaration
    public static ILogger CreateLogger(string categoryName, LogAttributes attributes = null, bool noAttributes = false, bool nullLogger = false)
    Parameters
    Type Name Description
    string categoryName

    Specifies the logger's category name.

    LogAttributes attributes

    Optionally specifies attributes to be included in every event logged.

    bool noAttributes

    Optionally indicates that the LogAttributes should not be added to the logger returned.

    bool nullLogger

    Optionally specifies that a do-nothing logger should be returned. This defaults to false.

    Returns
    Type Description
    ILogger

    The ILogger.

    CreateLogger(Type, LogAttributes, bool, bool)

    Returns an ILogger using the fully qualified name from type. type as the logger's category name.

    Declaration
    public static ILogger CreateLogger(Type type, LogAttributes attributes = null, bool noAttributes = false, bool nullLogger = false)
    Parameters
    Type Name Description
    Type type
    LogAttributes attributes

    Optionally specifies attributes to be included in every event logged.

    bool noAttributes

    Optionally indicates that the LogAttributes should not be added to the logger returned.

    bool nullLogger

    Optionally specifies that a do-nothing logger should be returned. This defaults to false.

    Returns
    Type Description
    ILogger

    The ILogger.

    CreateLogger<T>(LogAttributes, bool, bool)

    Returns an ILogger using the fully qualified name of the T type as the logger's category name.

    Declaration
    public static ILogger CreateLogger<T>(LogAttributes attributes = null, bool noAttributes = false, bool nullLogger = false)
    Parameters
    Type Name Description
    LogAttributes attributes

    Optionally specifies attributes to be included in every event logged.

    bool noAttributes

    Optionally indicates that the LogAttributes should not be added to the logger returned.

    bool nullLogger

    Optionally specifies that a do-nothing logger should be returned. This defaults to false.

    Returns
    Type Description
    ILogger

    The ILogger.

    Type Parameters
    Name Description
    T

    Identifies the type whose fully-qualified name is to be used as the logger's category name.

    ParseLogLevel(string, LogLevel)

    Parses a LogLevel from a string.

    Declaration
    public static LogLevel ParseLogLevel(string input, LogLevel @default = null)
    Parameters
    Type Name Description
    string input

    The input string.

    LogLevel default

    The default value to return when input is null or invalid.

    Returns
    Type Description
    LogLevel

    The parsed LogLevel.

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