@terascope/job-components / operations/job-observer / default

Class: default

Defined in: job-components/src/operations/job-observer.ts:11

An Observer for monitoring the Slice Analytics

Extends

• default

Constructors

Constructor

new default(context, apiConfig, executionConfig): JobObserver

Defined in: job-components/src/operations/job-observer.ts:26

Parameters

Parameter	Type
context	Context
apiConfig	APIConfig
executionConfig	ExecutionConfig

Returns

JobObserver

Overrides

default.constructor

Properties

Property	Modifier	Type	Inherited from	Defined in
_currentIndex	protected	number	-	job-components/src/operations/job-observer.ts:18
_currentSliceId	protected	string	-	job-components/src/operations/job-observer.ts:16
analyticsData	public	SliceAnalyticsData | undefined	-	job-components/src/operations/job-observer.ts:13
apiConfig	readonly	Readonly<APIConfig & T>	default.apiConfig	job-components/src/operations/core/api-core.ts:19
collectAnalytics	public	boolean	-	job-components/src/operations/job-observer.ts:12
context	readonly	Readonly<T>	default.context	job-components/src/operations/core/core.ts:10
deadLetterAction	public	string	default.deadLetterAction	job-components/src/operations/core/api-core.ts:20
events	readonly	EventEmitter	default.events	job-components/src/operations/core/core.ts:13
executionConfig	readonly	Readonly<ExecutionConfig>	default.executionConfig	job-components/src/operations/core/core.ts:11
logger	readonly	Logger	default.logger	job-components/src/operations/core/core.ts:12

Methods

defaultAnalytics()

defaultAnalytics(): SliceAnalyticsData

Defined in: job-components/src/operations/job-observer.ts:90

Returns

SliceAnalyticsData

---

getAnalytics()

getAnalytics(): SliceAnalyticsData | undefined

Defined in: job-components/src/operations/job-observer.ts:79

Returns

SliceAnalyticsData | undefined

---

initialize()

initialize(): Promise<void>

Defined in: job-components/src/operations/core/api-core.ts:34

Called during execution initialization, when this is called perform any async setup.

Returns

Promise<void>

Inherited from

default.initialize

---

onOperationComplete()

onOperationComplete(sliceId, index, processed): void

Defined in: job-components/src/operations/job-observer.ts:64

Parameters

Parameter	Type
sliceId	string
index	number
processed	number

Returns

void

---

onOperationStart()

onOperationStart(sliceId, index): void

Defined in: job-components/src/operations/job-observer.ts:52

Parameters

Parameter	Type
sliceId	string
index	number

Returns

void

---

onSliceInitialized()

onSliceInitialized(sliceId): Promise<void>

Defined in: job-components/src/operations/job-observer.ts:41

Parameters

Parameter	Type
sliceId	string

Returns

Promise<void>

---

rejectRecord()

rejectRecord(input, err): null

Defined in: job-components/src/operations/core/api-core.ts:76

Reject a record using the dead letter action

Based on OpConfig._dead_letter_action the transformation can be handled any of the following ways:

• "throw": throw the original error
• "log": log the error and the data
• "none": skip the error entirely OR a string to specify the api to use as the dead letter queue

Parameters

Parameter	Type
input	unknown
err	Error

Returns

null

null

Inherited from

default.rejectRecord

---

shutdown()

shutdown(): Promise<void>

Defined in: job-components/src/operations/core/api-core.ts:38

Called during execution shutdown, when this is cleanup any open connections or destroy any in-memory state.

Returns

Promise<void>

Inherited from

default.shutdown

---

tryRecord()

tryRecord<I, R>(fn): (input) => R | null

Defined in: job-components/src/operations/core/api-core.ts:51

Try catch a transformation on a record and place any failed records in a dead letter queue

See #rejectRecord for handling

Type Parameters

Type Parameter
I
R

Parameters

Parameter	Type	Description
fn	(input) => R	a function to transform the data with

Returns

a curried a function that will be called with the data and handle the dead letter action

(input) => R | null

Inherited from

default.tryRecord