Class: Prdigest::DeliveryCheckpointStore::Session

Inherits:
Object
  • Object
show all
Defined in:
lib/prdigest/delivery_checkpoint_store.rb

Instance Method Summary collapse

Constructor Details

#initialize(path:, data:) ⇒ Session

Returns a new instance of Session.



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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 15

def initialize(path:, data:)
  @path = path
  @data = data
end

Instance Method Details

#accept(index) ⇒ Object 



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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 38

def accept(index)
  require_in_flight!(index)
  @data["next_chunk"] = index + 1
  @data["in_flight"] = nil
  @data["status"] = next_chunk == chunks.length ? "completed" : "pending"
  @data["permanent_error"] = nil
  persist!
end

#begin_attempt(index) ⇒ Object 



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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 32

def begin_attempt(index)
  require_next_chunk!(index)
  @data["in_flight"] = { "chunk" => index, "started_at" => timestamp }
  persist!
end

#chunks ⇒ Object 



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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 20

def chunks
  @data.fetch("chunks")
end

#completed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 28

def completed?
  @data.fetch("status") == "completed"
end

#delivery(failed_chunk: nil) ⇒ Object 



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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 63

def delivery(failed_chunk: nil)
  result = {
    accepted_chunks: next_chunk,
    total_chunks: chunks.length,
    status: @data.fetch("status")
  }
  result[:failed_chunk] = failed_chunk unless failed_chunk.nil?
  result
end

#next_chunk ⇒ Object 



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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 24

def next_chunk
  @data.fetch("next_chunk")
end

#reject(index, kind:, message:, permanent:) ⇒ Object 



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# File 'lib/prdigest/delivery_checkpoint_store.rb', line 47

def reject(index, kind:, message:, permanent:)
  require_in_flight!(index)
  @data["in_flight"] = nil
  if permanent
    @data["status"] = "blocked"
    @data["permanent_error"] = {
      "kind" => kind.to_s,
      "message" => message.to_s,
      "failed_chunk" => index
    }
  else
    @data["permanent_error"] = nil
  end
  persist!
end