Class: Fractor::Workflow::FallbackJobHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/fractor/workflow/execution/fallback_job_handler.rb

Overview

Handles fallback job execution when a primary job fails. Manages the lifecycle of executing a fallback job and integrating its result back into the workflow context.

Instance Method Summary collapse

Constructor Details

#initialize(workflow, context, hooks, logger) ⇒ FallbackJobHandler

Initialize the fallback handler.

Parameters:



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# File 'lib/fractor/workflow/execution/fallback_job_handler.rb', line 15

def initialize(workflow, context, hooks, logger)
  @workflow = workflow
  @context = context
  @hooks = hooks
  @logger = logger
end

Instance Method Details

#execute_fallback(original_job, original_error, job_trace, job_executor, start_time) ⇒ Object

Execute a fallback job for a failed job.

Parameters:

  • original_job (Job) —

    The job that failed

  • original_error (Exception) —

    The error that occurred

  • job_trace (ExecutionTrace::JobTrace, nil) —

    Optional job trace

  • job_executor (JobExecutor) —

    The job executor to use

  • start_time (Time) —

    The original job start time (for duration calculation)

Returns:

  • (Object) —

    The output from the fallback job



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# File 'lib/fractor/workflow/execution/fallback_job_handler.rb', line 30

def execute_fallback(original_job, original_error, job_trace,
job_executor, start_time)
  fallback_job_name = original_job.fallback_job
  fallback_job = @workflow.class.jobs[fallback_job_name]

  unless fallback_job
    raise WorkflowExecutionError,
          "Fallback job '#{fallback_job_name}' not found for job '#{original_job.name}'"
  end

  @logger.fallback_execution(original_job.name, fallback_job.name,
                             original_error)

  begin
    # Execute fallback job using job_executor
    output = job_executor.execute_once(fallback_job, job_trace)

    # Store output under original job name as well
    @context.store_job_output(original_job.name, output)
    original_job.state(:completed)

    duration = Time.now - start_time

    # Update trace
    job_trace&.complete!(output: output)

    @logger.job_complete(original_job.name, duration)
    @hooks.trigger(:job_complete, original_job, output, duration)

    output
  rescue StandardError => e
    @logger.fallback_failed(original_job.name, fallback_job.name, e)
    raise WorkflowExecutionError,
          "Job '#{original_job.name}' and fallback '#{fallback_job_name}' both failed"
  end
end