PlantUML Web Server

@startuml
actor User
participant "SpringBatchApplication" as App
participant "JobLauncher" as Launcher
participant "FaqCleanJob" as Job
participant "CleanStep" as Step
participant "FlatFileItemReader" as Reader
participant "FaqItemProcessor" as Processor
participant "FlatFileItemWriter" as Writer
database "CSV Input File" as Input
database "CSV Output File" as Output
participant "SkipPolicy" as SkipPolicy

User -> App: Start Application
activate App

App -> Launcher: Launch Job
activate Launcher

Launcher -> Job: Execute faqCleanJob
activate Job

Job -> Step: Execute cleanStep
activate Step

loop For each chunk (100 items)
    Step -> Reader: read()
    activate Reader
    Reader -> Input: Read CSV records
    Input --> Reader: Return records
    Reader --> Step: Return FaqItem objects
    deactivate Reader

loop For each item in chunk
        Step -> Processor: process()
        activate Processor
        Processor -> Processor: Clean HTML
        Processor -> Processor: Convert to lowercase
        Processor -> Processor: Trim whitespace
        Processor -> Processor: Validate fields
        alt Validation fails
            Processor --> Step: Throw ValidationException
            Step -> SkipPolicy: Check skip policy
            SkipPolicy --> Step: Skip record (if < 100 skips)
            Note right of SkipPolicy: SkipLimit: 100
            Step --> Step: Continue with next record
        else Validation succeeds
            Processor --> Step: Return cleaned FaqItem
        end
        deactivate Processor
    end

Step -> Writer: write()
    activate Writer
    Writer -> Output: Write cleaned records
    Output --> Writer: Confirm write
    Writer --> Step: Complete
    deactivate Writer
end

Step --> Job: Step complete
deactivate Step

Job --> Launcher: Job complete
deactivate Job

Launcher --> App: Job execution complete
deactivate Launcher

App --> User: Application complete
deactivate App
@enduml

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