import MetricsSvcProvider from 'devapt-core-services/js/services/metrics/metrics_svc_provider.js'

public class | source

MetricsSvcProvider

Extends:

devapt-core-common/dist/js/services/service_provider~ServiceProvider → MetricsSvcProvider

Metrics service provider class.

Constructor Summary

Public Constructor
public	constructor(arg_provider_name: string, arg_service_instance: Service, arg_context: string): nothing Create a metrics service provider.

Member Summary

Public Members
public	is_metrics_svc_provider: boolean Class test flag.

Private Members
private	_metrics_bus_stream: Stream Metrics bus stream.
private	_metrics_bus_stream_transformed: Stream Metrics bus transformed stream.

Method Summary

Public Methods
public	fill_error(arg_response: ServiceResponse, arg_operands: array, arg_error: string, arg_op: string, arg_type: string): nothing Populate a response with error message.
public abstract	get_operations_names(): array Get provider operations names.
public	init_stream(arg_type: string): nothing Init output stream.
public	produce(arg_request: ServiceRequest): Promise Produce service datas on request.

Public Constructors

public constructor(arg_provider_name: string, arg_service_instance: Service, arg_context: string): nothing source

Create a metrics service provider.

Params:

Name	Type	Attribute	Description
arg_provider_name	string		consumer name.
arg_service_instance	Service		service instance.
arg_context	string		logging context label.

Return:

nothing

Public Members

public is_metrics_svc_provider: boolean source

Class test flag.

Private Members

private _metrics_bus_stream: Stream source

Metrics bus stream.

private _metrics_bus_stream_transformed: Stream source

Metrics bus transformed stream.

Public Methods

public fill_error(arg_response: ServiceResponse, arg_operands: array, arg_error: string, arg_op: string, arg_type: string): nothing source

Populate a response with error message.

Params:

Name	Type	Attribute	Description
arg_response	ServiceResponse		response instance.
arg_operands	array		request operands.
arg_error	string		error text.
arg_op	string		metrics operation.
arg_type	string		metrics type.

Return:

nothing

public abstract get_operations_names(): array source

Get provider operations names.

Return:

array

public init_stream(arg_type: string): nothing source

Init output stream.

Params:

Name	Type	Attribute	Description
arg_type	string		metrics type.

Return:

nothing

public produce(arg_request: ServiceRequest): Promise source

Produce service datas on request.

Params:

Name	Type	Attribute	Description
arg_request	ServiceRequest		service request instance.

Return:

Promise

promise of ServiceResponse instance.