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PBApplication.class.st
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261 lines (221 loc) · 5.73 KB
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Class {
#name : #PBApplication,
#superclass : #Object,
#instVars : [
'communicationHandler',
'processHandler',
'loggingHandler',
'executionHandler',
'settings'
],
#classVars : [
'DebugMode'
],
#classInstVars : [
'uniqueInstance'
],
#category : #'PythonBridge-Global'
}
{ #category : #accessing }
PBApplication class >> baseApplication [
^ PBApplication
]
{ #category : #debug }
PBApplication class >> debugMode [
^ DebugMode ifNil: [ false ]
]
{ #category : #debug }
PBApplication class >> debugMode: bool [
^ DebugMode := bool
]
{ #category : #'start-stop' }
PBApplication class >> do: aBlockClosure [
| retVal |
self isRunning ifTrue: [ ^ aBlockClosure value ].
[
self start.
retVal := aBlockClosure cull: self uniqueInstance.
self uniqueInstance commandFactory << nil.
self uniqueInstance commandFactory send waitForValue. ] ensure: [ self stop ].
^ retVal
]
{ #category : #testing }
PBApplication class >> isRunning [
^ uniqueInstance notNil and: [ uniqueInstance isRunning ]
]
{ #category : #testing }
PBApplication class >> module [
^ self uniqueInstance module
]
{ #category : #'pipenv setup' }
PBApplication class >> platform [
^ PBPlatform current
]
{ #category : #'python hooks file' }
PBApplication class >> repositoryFileReference [
^ self platform folderForApplication: self
]
{ #category : #instructions }
PBApplication class >> resetUniqueInstance [
uniqueInstance ifNotNil: [
[ uniqueInstance stop ]
on: Error
do: [ PBPlatform current uiManager inform: 'Error on reseting unique instance.' ]. ].
uniqueInstance := nil
]
{ #category : #instructions }
PBApplication class >> send: obj [
self assert: self isRunning.
^ self uniqueInstance send: obj
]
{ #category : #'start-stop' }
PBApplication class >> start [
self isRunning ifTrue: [ Error signal: 'Keras already running.' ].
self stop.
uniqueInstance := self new.
uniqueInstance commandFactory reset.
uniqueInstance start
]
{ #category : #'start-stop' }
PBApplication class >> stop [
uniqueInstance ifNotNil: [
uniqueInstance stop. ].
uniqueInstance := nil
]
{ #category : #testing }
PBApplication class >> test [
self assert: (self do: [ :app |
app commandFactory << (P3GBinaryOperator new
left: 1;
right: 2;
operator: $+;
yourself).
app commandFactory send waitForValue
]) = 3
]
{ #category : #instructions }
PBApplication class >> uniqueInstance [
^ uniqueInstance
]
{ #category : #accessing }
PBApplication class >> uniqueInstance: anObject [
uniqueInstance := anObject
]
{ #category : #utils }
PBApplication >> addMapping: pythonType to: pythonFunction [
self commandFactory
send: (#bridge_globals asP3GI => #msg_service => #addMapping
callWith: (Array with: pythonType with: pythonFunction))
]
{ #category : #accessing }
PBApplication >> commandFactory [
^ PBCF
]
{ #category : #accessing }
PBApplication >> communicationHandler [
^ communicationHandler
]
{ #category : #accessing }
PBApplication >> errorMessage [
"Fetch the error message from the stderr stream, from the processhander"
^ processHandler errorMessage
]
{ #category : #accessing }
PBApplication >> executionHandler [
^ executionHandler
]
{ #category : #handlers }
PBApplication >> handlers [
^ Array
with: loggingHandler
with: communicationHandler
with: processHandler
with: executionHandler
]
{ #category : #initialization }
PBApplication >> initialize [
super initialize.
settings := PBPlatform current defaultSettings.
self initializeHandlers.
]
{ #category : #initialization }
PBApplication >> initializeHandlers [
loggingHandler := PBLoggingHandler application: self.
communicationHandler := PBCommunicationHandler application: self.
processHandler := PBPythonHandler application: self.
executionHandler := PBExecutionHandler application: self
]
{ #category : #testing }
PBApplication >> isPythonReady [
"Ensures python webserver is ready for receiving commands"
^ self communicationHandler isPythonReady
]
{ #category : #testing }
PBApplication >> isRunning [
^ self handlers allSatisfy: #isRunning
]
{ #category : #logging }
PBApplication >> log: aLog [
self loggingHandler log: aLog
]
{ #category : #accessing }
PBApplication >> loggingHandler [
^ loggingHandler
]
{ #category : #accessing }
PBApplication >> module [
self subclassResponsibility
]
{ #category : #'instance creation' }
PBApplication >> newCommandFactory [
^ self executionHandler newCommandFactory
]
{ #category : #accessing }
PBApplication >> postInitialization [
]
{ #category : #accessing }
PBApplication >> processHandler [
^ processHandler
]
{ #category : #'as yet unclassified' }
PBApplication >> registerObject: aPythonObject [
self executionHandler registerObject: aPythonObject
]
{ #category : #instructions }
PBApplication >> send: aCommand [
self isRunning ifFalse: [ Error signal: 'Bridge not running.' ].
^ executionHandler sendCommand: aCommand
]
{ #category : #accessing }
PBApplication >> settings [
^ settings
]
{ #category : #accessing }
PBApplication >> settings: anObject [
settings := anObject
]
{ #category : #accessing }
PBApplication >> start [
self handlers do: #start.
self commandFactory reset.
self waitInitialization.
self postInitialization.
self commandFactory send.
]
{ #category : #'as yet unclassified' }
PBApplication >> stop [
self handlers select: #notNil thenDo: #stop
]
{ #category : #'as yet unclassified' }
PBApplication >> waitInitialization [
"Timeout of 10 seconds and try every 0.5 seconds"
1 to: 10 by: 0.5 do: [ :t |
self isPythonReady
ifTrue: [ ^ self ]
ifFalse: [ (Delay forMilliseconds: 500) wait ] ].
Error signal: 'Python application initialization failed!'
"
Print the result of executing the following line:
self errorMessage
"
]