TwyrServiceLoader

TwyrServiceLoader

The Twyr Server Base Class for all Service Loaders.

Constructor

new TwyrServiceLoader(twyrModuleopt)

Serves as the "base class" for all other service loaders in the Twyr Web Application Server.

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Serves as the "base class" for all other service loaders in the Twyr Web Application Server.

Responsible for invoking the standard "lifecycle" hooks on sub-modules of this module, if any - see TwyrBaseModule#load, TwyrBaseModule#initialize, TwyrBaseModule#start, TwyrBaseModule#stop, TwyrBaseModule#uninitialize, and TwyrBaseModule#unload.

Parameters:
Name Type Attributes Description
twyrModule TwyrBaseModule <optional>

The parent module, if any.

Extends

Members

(readonly) basePath :string

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Type:
  • string

(readonly) name :string

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Type:
  • string

Methods

(async) _doLifecycleAction(moduleType, action, args) → {Object}

Executes a lifecycle action on the given hashmap.

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Parameters:
Name Type Description
moduleType string

The type of the module to iterate over (services, components, etc.).
action string

The lifecycle action to execute (initialize, start, etc.).
args Array

The arguments to pass to the lifecycle method.
Returns:

Hash map of the lifecycle status for each of the modules found.

Type
Object

(async) _exists(filepath, mode) → {boolean}

Checks to see if the path can be accessed by this process using the mode specified.

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Parameters:
Name Type Description
filepath string

Path of the filesystem entity.
mode number

Permission to be checked for.
Returns:

True / False.

Type
boolean

_filterStatus(status) → {Array}

Converts statuses to strings, depending on their type.

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Parameters:
Name Type Description
status Array

The statuses to process and filter.
Returns:

The stringified statuses.

Type
Array

(async) _findFiles(rootDir, filename) → {Array}

Finds files in folders, and recursively, sub-folders, as well.

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Parameters:
Name Type Description
rootDir string

Path of the folder to recursively search for.
filename string

Name of the file to search for.
Returns:

List of files in the folder matching the name passed in.

Type
Array

_getDependencies(moduleInstance) → {Object}

Walks up the $twyrModule.$parent chain, and at each level searches for a $service.

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Parameters:
Name Type Description
moduleInstance TwyrBaseModule

The module to find dependencies for.
Returns:

The dependencies.

Type
Object

_handleUncaughtException(err) → {undefined}

Logs Unhandled Exceptions to prevent the process from crashing.

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Parameters:
Name Type Description
err Error

The unhandled exception.
Returns:

Nothing.

Type
undefined

(async) _initializeComponents() → {Object}

Initialize Components defined as part of this TwyrBaseModule.

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Returns:

Object containing the initialization status of each of the $twyrModule components.

Type
Object

(async) _initializeFeatures() → {Object}

Initialize Features defined as part of this TwyrBaseModule.

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Returns:

Object containing the initialization status of each of the $twyrModule features.

Type
Object

(async) _initializeMiddlewares() → {Object}

Initialize Middlewares defined as part of this TwyrBaseModule.

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Returns:

Object containing the initialization status of each of the $twyrModule middlewares.

Type
Object

(async) _initializeServices() → {Object}

Initialize Services defined as part of this TwyrBaseModule.

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Returns:

Object containing the initialization status of each of the $twyrModule services.

Type
Object

(async) _initializeTemplates() → {Object}

Initialize Templates defined as part of this TwyrBaseModule.

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Returns:

Object containing the initialization status of each of the $twyrModule templates.

Type
Object

(async) _loadComponents(configSrvc) → {Object}

Load components defined as part of this TwyrBaseModule.

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Parameters:
Name Type Description
configSrvc ConfigurationService

Instance of the ConfigurationService that supplies configuration.
Returns:

Object containing the load status of each of the $twyrModule components.

Type
Object

(async) _loadFeatures(configSrvc) → {Object}

Load features defined as part of this TwyrBaseModule.

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Parameters:
Name Type Description
configSrvc ConfigurationService

Instance of the ConfigurationService that supplies configuration.
Returns:

Object containing the load status of each of the $twyrModule features.

Type
Object

(async) _loadMiddlewares(configSrvc) → {Object}

Load middlewares defined as part of this TwyrBaseModule.

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Parameters:
Name Type Description
configSrvc ConfigurationService

Instance of the ConfigurationService that supplies configuration.
Returns:

Object containing the load status of each of the $twyrModule middlewares.

Type
Object

(async) _loadServices(configSrvc) → {Object}

Load services defined as part of this TwyrBaseModule.

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Special processing: If the configSrvc parameter is undefined, load the ConfigurationService first, if any found.

Since the ConfigurationServiceLoader calls load / initialize / start in one shot, the other sub-modules get, basically, a fully functional configuration service by the time they load, allowing them to use their configurations from the get-go.

Parameters:
Name Type Description
configSrvc ConfigurationService

Instance of the ConfigurationService that supplies configuration.
Returns:

Object containing the load status of each of the $twyrModule services.

Type
Object

(async) _loadTemplates(configSrvc) → {Object}

Load templates defined as part of this TwyrBaseModule.

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Parameters:
Name Type Description
configSrvc ConfigurationService

Instance of the ConfigurationService that supplies configuration.
Returns:

Object containing the load status of each of the $twyrModule templates.

Type
Object

(async) _loadUtilities(configSrvc) → {Object}

Load utilities defined as part of this TwyrBaseModule.

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Parameters:
Name Type Description
configSrvc ConfigurationService

Instance of the ConfigurationService that supplies configuration.
Returns:

Object containing the load status of each of the $twyrModule utilities.

Type
Object

(async) _startComponents() → {Object}

Start Components defined as part of this TwyrBaseModule.

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Returns:

Object containing the start status of each of the $twyrModule components.

Type
Object

(async) _startFeatures() → {Object}

Start Features defined as part of this TwyrBaseModule.

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Returns:

Object containing the start status of each of the $twyrModule features.

Type
Object

(async) _startMiddlewares() → {Object}

Start Middlewares defined as part of this TwyrBaseModule.

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Returns:

Object containing the start status of each of the $twyrModule middlewares.

Type
Object

(async) _startServices() → {Object}

Start Services defined as part of this TwyrBaseModule.

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Returns:

Object containing the start status of each of the $twyrModule services.

Type
Object

(async) _startTemplates() → {Object}

Start Templates defined as part of this TwyrBaseModule.

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Returns:

Object containing the start status of each of the $twyrModule templates.

Type
Object

(async) _stopComponents() → {Object}

Stop Components defined as part of this TwyrBaseModule.

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Returns:

Object containing the stop status of each of the $twyrModule components.

Type
Object

(async) _stopFeatures() → {Object}

Stop Features defined as part of this TwyrBaseModule.

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Returns:

Object containing the stop status of each of the $twyrModule features.

Type
Object

(async) _stopMiddlewares() → {Object}

Stop Middlewares defined as part of this TwyrBaseModule.

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Returns:

Object containing the stop status of each of the $twyrModule middlewares.

Type
Object

(async) _stopServices() → {Object}

Stop Services defined as part of this TwyrBaseModule.

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Returns:

Object containing the stop status of each of the $twyrModule services.

Type
Object

(async) _stopTemplates() → {Object}

Stop Templates defined as part of this TwyrBaseModule.

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Returns:

Object containing the stop status of each of the $twyrModule templates.

Type
Object

(async) _uninitializeComponents() → {Object}

Uninitialize Components defined as part of this TwyrBaseModule.

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Returns:

Object containing the uninit status of each of the $twyrModule components.

Type
Object

(async) _uninitializeFeatures() → {Object}

Uninitialize Features defined as part of this TwyrBaseModule.

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Returns:

Object containing the uninit status of each of the $twyrModule features.

Type
Object

(async) _uninitializeMiddlewares() → {Object}

Uninitialize Middlewares defined as part of this TwyrBaseModule.

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Returns:

Object containing the uninit status of each of the $twyrModule middlewares.

Type
Object

(async) _uninitializeServices() → {Object}

Uninitialize Services defined as part of this TwyrBaseModule.

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Returns:

Object containing the uninit status of each of the $twyrModule services.

Type
Object

(async) _uninitializeTemplates() → {Object}

Uninitialize Templates defined as part of this TwyrBaseModule.

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Returns:

Object containing the uninit status of each of the $twyrModule templates.

Type
Object

(async) _unloadComponents() → {Object}

Unload Components defined as part of this TwyrBaseModule.

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Returns:

Object containing the unload status of each of the $twyrModule components.

Type
Object

(async) _unloadFeatures() → {Object}

Unload Features defined as part of this TwyrBaseModule.

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Returns:

Object containing the unload status of each of the $twyrModule features.

Type
Object

(async) _unloadMiddlewares() → {Object}

Unload Middlewares defined as part of this TwyrBaseModule.

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Returns:

Object containing the unload status of each of the $twyrModule middlewares.

Type
Object

(async) _unloadServices() → {Object}

Unload Services defined as part of this TwyrBaseModule.

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Returns:

Object containing the unload status of each of the $twyrModule services.

Type
Object

(async) _unloadTemplates() → {Object}

Unload Templates defined as part of this TwyrBaseModule.

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Returns:

Object containing the unload status of each of the $twyrModule templates.

Type
Object

(async) _unloadUtilities() → {Object}

Unload utilities defined as part of this TwyrBaseModule.

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Returns:

Object containing the unload status of each of the $twyrModule utilities.

Type
Object

(async) initialize() → {Object}

Initializes sub-modules.

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Overrides:
Returns:
  • The initialization status of $twyrModule's sub-modules.
Type
Object

(async) load(configSrvc) → {Object}

Loads sub-modules.

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Overrides:
Parameters:
Name Type Description
configSrvc ConfigurationService

Instance of the ConfigurationService that supplies configuration.
Returns:
  • The load status of $twyrModule's sub-modules.
Type
Object

(async) start() → {Object}

Starts sub-modules.

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Overrides:
Returns:
  • The start status of $twyrModule's sub-modules.
Type
Object

(async) stop() → {Object}

Stops sub-modules.

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Overrides:
Returns:
  • The stop status of $twyrModule's sub-modules.
Type
Object

(async) uninitialize() → {Object}

Un-initializes sub-modules.

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Overrides:
Returns:
  • The uninitialization status of $twyrModule's sub-modules.
Type
Object

(async) unload() → {Object}

Unloads sub-modules.

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Overrides:
Returns:
  • The unloading status of $twyrModule's sub-modules.
Type
Object