Class HostGovernorService

Provides Host Governor Services - this is a singleton class

Inheritance
System.Object
DisposableObject
ApplicationComponent
Daemon
HostGovernorService
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Azos.Sky.Apps.HostGovernor
Assembly: Azos.Sky.dll
Syntax
public sealed class HostGovernorService : Daemon, IDisposable, IDaemon, IDaemonView, IApplicationComponent, INamed, IConfigurable, ILocalizedTimeProvider, IPinger, ISkyService

Constructors

HostGovernorService(IApplication, Boolean, Boolean)

Creates a singleton instance or throws if instance is already created

Declaration
public HostGovernorService(IApplication app, bool launchedByARD, bool ardUpdateProblem)
Parameters
Type Name Description
IApplication app
System.Boolean launchedByARD
System.Boolean ardUpdateProblem

Fields

CONFIG_DYNAMIC_HOST_ID_ATTR

Declaration
public const string CONFIG_DYNAMIC_HOST_ID_ATTR = "dynamic-host-id"
Field Value
Type Description
System.String

CONFIG_HOST_GOVERNOR_SECTION

Declaration
public const string CONFIG_HOST_GOVERNOR_SECTION = "host-governor"
Field Value
Type Description
System.String

CONFIG_STARTUP_INSTALL_CHECK_ATTR

Declaration
public const string CONFIG_STARTUP_INSTALL_CHECK_ATTR = "startup-install-check"
Field Value
Type Description
System.String

THREAD_GRANULARITY_MS

Declaration
public const int THREAD_GRANULARITY_MS = 3000
Field Value
Type Description
System.Int32

THREAD_NAME

Declaration
public const string THREAD_NAME = "HostGovernorService"
Field Value
Type Description
System.String

Properties

AllPackages

Gets all unique Metabank.SectionApplication.AppPackage(s) for all applications on this host

Declaration
public IEnumerable<Metabank.SectionApplication.AppPackage> AllPackages { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<Metabank.SectionApplication.AppPackage>

AppStartOrder

Returns current application start order, the sequence # of the next app start

Declaration
public int AppStartOrder { get; }
Property Value
Type Description
System.Int32

ARDUpdateProblem

Returns true when this process was launched by Azos Sky Root Daemon that could not perform update properly - most likely UPD and RUN folders locked by some other process

Declaration
public bool ARDUpdateProblem { get; }
Property Value
Type Description
System.Boolean

ComponentCommonName

Declaration
public override string ComponentCommonName { get; }
Property Value
Type Description
System.String
Overrides

ComponentLogTopic

Declaration
public override string ComponentLogTopic { get; }
Property Value
Type Description
System.String
Overrides

DynamicHostID

Declaration
public DynamicHostID? DynamicHostID { get; }
Property Value
Type Description
System.Nullable<DynamicHostID>

LaunchedByARD

Returns true when this process was launched by Sky Root Daemon as opposed to being launched from console/script

Declaration
public bool LaunchedByARD { get; }
Property Value
Type Description
System.Boolean

ManagedApps

Returns a thread-safe copy of ManagedApps in the instance - applications managed by Azos Sky Host Governor

Declaration
public IEnumerable<ManagedApp> ManagedApps { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<ManagedApp>

NeedsProcessRestart

Becomes true to indocate that the app;ication process should be restarted (by ARD)

Declaration
public bool NeedsProcessRestart { get; }
Property Value
Type Description
System.Boolean

RootPath

Returns the very root path under which "ard","/run-netf","/run-core","/upd" are

Declaration
public string RootPath { get; }
Property Value
Type Description
System.String

RunPath

Returns the full path to "/run" directory out of which the current AHGOV process was launched

Declaration
public string RunPath { get; }
Property Value
Type Description
System.String

StartupInstallCheck

Indicates whether install version check is done on service start (vs being invoked by command)

Declaration
public bool StartupInstallCheck { get; }
Property Value
Type Description
System.Boolean

UpdatePath

Returns the full path to "/upd" directory where AHGOV will place newer files

Declaration
public string UpdatePath { get; }
Property Value
Type Description
System.String

Methods

CheckAndPerformLocalSoftwareInstallation(IList<String>, Boolean)

Initiates check of locally installed packages and if they are different than install set, reinstalls in UpdatePath

Declaration
public bool CheckAndPerformLocalSoftwareInstallation(IList<string> progress, bool force = false)
Parameters
Type Name Description
System.Collections.Generic.IList<System.String> progress
System.Boolean force
Returns
Type Description
System.Boolean

True if physical install was performed and AHGOV needs to restart so ARD may respawn it

Destructor()

Declaration
protected override void Destructor()
Overrides

DoConfigure(IConfigSectionNode)

Declaration
protected override void DoConfigure(IConfigSectionNode node)
Parameters
Type Name Description
IConfigSectionNode node
Overrides

DoSignalStop()

Declaration
protected override void DoSignalStop()
Overrides

DoStart()

Declaration
protected override void DoStart()
Overrides

DoWaitForCompleteStop()

Declaration
protected override void DoWaitForCompleteStop()
Overrides

GetHostInfo()

Declaration
public HostInfo GetHostInfo()
Returns
Type Description
HostInfo

Ping()

Declaration
public void Ping()

Implements

System.IDisposable

Extension Methods