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164 changes: 164 additions & 0 deletions
164
source/Cosmos-CommandLineHandler/CosmosApplication.class.st
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|---|---|---|
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| Class { | ||
| #name : #CosmosApplication, | ||
| #superclass : #LaunchpadApplication, | ||
| #instVars : [ | ||
| 'pendingActionsQueue', | ||
| 'actionEvaluationsQueue', | ||
| 'cosmos' | ||
| ], | ||
| #category : #'Cosmos-CommandLineHandler' | ||
| } | ||
|
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| { #category : #accessing } | ||
| CosmosApplication class >> commandName [ | ||
|
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| ^ 'cosmos' | ||
| ] | ||
|
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| { #category : #accessing } | ||
| CosmosApplication class >> configurationParameters [ | ||
|
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| ^ Array | ||
| with: ( OptionalConfigurationParameter | ||
| named: 'hostname' | ||
| describedBy: 'The host where the cosmos RESTful API will be available' | ||
| defaultingTo: 'localhost' ) | ||
| with: ( OptionalConfigurationParameter | ||
| named: 'port' | ||
| describedBy: 'The port where the cosmos RESTful API will be available' | ||
| defaultingTo: 57001 | ||
| convertingWith: #asNumber ) | ||
| with: ( MandatoryConfigurationParameter | ||
| named: 'allowed-origins' | ||
| describedBy: 'The allowed origins' | ||
| convertingWith: [ :string | ( ( string substrings: ',' ) collect: #trim ) collect: #asUrl ] ) | ||
| ] | ||
|
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| { #category : #accessing } | ||
| CosmosApplication class >> description [ | ||
|
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| ^ 'Cosmos application' | ||
| ] | ||
|
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| { #category : #accessing } | ||
| CosmosApplication class >> version [ | ||
|
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| ^ 'v1.0.0' | ||
| ] | ||
|
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| { #category : #'private - activation/deactivation' } | ||
| CosmosApplication >> basicStartWithin: context [ | ||
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| LogRecord emitInfo: 'Creating pending evaluation actions queue' during: [ pendingActionsQueue := AtomicSharedQueue new ]. | ||
| LogRecord emitInfo: 'Creating action evaluation queue' during: [ actionEvaluationsQueue := AtomicSharedQueue new ]. | ||
| LogRecord emitInfo: 'Building and starting cosmos' during: [ self buildAndStartCosmos ]. | ||
| LogRecord emitInfo: 'Building and starting RESTful API' during: [ self buildAndStartCosmosAPI ]. | ||
| LogRecord emitInfo: 'Building and starting the periodical scheduler' during: [ self buildAndStartScheduler ]. | ||
| LogRecord emitInfo: 'Building and starting the action evaluator' during: [ self buildAndStartActionEvaluator ]. | ||
|
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| ] | ||
|
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| { #category : #'private - building evaluator' } | ||
| CosmosApplication >> buildAndStartActionEvaluator [ | ||
|
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| | evaluator | | ||
|
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| evaluator := ActionEvaluator | ||
| evaluatingActionsFrom: pendingActionsQueue | ||
| using: (ActionEvaluatorConfiguration workingWith: SystemTimeSource new) | ||
| registeringEvaluationsInto: actionEvaluationsQueue. | ||
|
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| evaluator start | ||
|
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|
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| ] | ||
|
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| { #category : #'private - building cosmos system' } | ||
| CosmosApplication >> buildAndStartCosmos [ | ||
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| cosmos := CompositeSystem new. | ||
|
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| cosmos | ||
| register: (TimeSystem using: SystemTimeSource new); | ||
| register: EventNotificationSystem new; | ||
| register: MetadataSystem new; | ||
| register: (IdentifierSystem using: UUIDProvider new); | ||
| register: TimestampingSystem new; | ||
| register: DataStreamManagementSystem new; | ||
| register: (TriggerManagementSystem enqueuingActionsInto: pendingActionsQueue); | ||
| register: ActionManagementSystem new; | ||
| register: (ActionEvaluationSystem registeringFrom: actionEvaluationsQueue); | ||
| register: CommandManagementSystem new. | ||
|
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| cosmos startUp | ||
| ] | ||
|
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| { #category : #'private - building cosmos API' } | ||
| CosmosApplication >> buildAndStartCosmosAPI [ | ||
|
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| | api | | ||
|
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| api := HTTPBasedRESTfulAPI | ||
| configuredBy: | ||
| {(#port -> self port). | ||
| (#debugMode -> self isDebugModeEnabled). | ||
| (#serverUrl -> self baseUrl)} | ||
| installing: | ||
| {(DataStreamsRESTfulController workingWith: cosmos). | ||
| (DataPointsRESTfulController workingWith: cosmos). | ||
| (CommandsRESTfulController workingWith: cosmos). | ||
| (ActionsRESTfulController workingWith: cosmos). | ||
| (ActionEvaluationsRESTfulController workingWith: cosmos). | ||
| (TriggersRESTfulController workingWith: cosmos)}.. | ||
|
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| api | ||
| on: self exceptionsToHandle | ||
| addErrorHandler: [ :signal :request | self class dumpStackAndReport: signal ]. | ||
|
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| api beCORSAwareAllowing: self allowedOrigins. | ||
|
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| api | ||
| install; | ||
| start | ||
| ] | ||
|
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| { #category : #'private - building scheduler' } | ||
| CosmosApplication >> buildAndStartScheduler [ | ||
|
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| | scheduler | | ||
|
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| scheduler := self periodicalScheduler. | ||
|
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| self timePeriodsToSchedule | ||
| do: [ :timePeriod | | task | | ||
|
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| task := Task | ||
| named: ('Notify every <1p>' expandMacrosWith: timePeriod) | ||
| do: [ (cosmos systemImplementing: #EventNotificationSystemInterface) | ||
| notifySubscribersTo: (TickEvent of: timePeriod) ]. | ||
|
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| scheduler schedule: task toBeExecutedEvery: timePeriod ]. | ||
|
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| scheduler start | ||
| ] | ||
|
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| { #category : #'private - building scheduler' } | ||
| CosmosApplication >> periodicalScheduler [ | ||
|
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| ^ PeriodicalScheduler usingDefaultScheduler | ||
| ] | ||
|
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| { #category : #'error handling' } | ||
| CosmosApplication >> stackTraceDumper [ | ||
|
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| ^ NullStackTraceDumper new | ||
| ] | ||
|
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| { #category : #'private - building scheduler' } | ||
| CosmosApplication >> timePeriodsToSchedule [ | ||
|
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| ^ {(TimeUnits second with: 10). | ||
| (TimeUnits minute with: 1). | ||
| (TimeUnits minute with: 10). | ||
| (TimeUnits hour with: 1)} | ||
| ] |
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