Method: Radiator::ErrorParser#parse_error_response

Defined in:
lib/radiator/error_parser.rb

#parse_error_response ⇒ Object 


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# File 'lib/radiator/error_parser.rb', line 42

def parse_error_response
  if response.nil?
    @expiry = false
    @can_retry = false
    @can_reprepare = false
    
    return
  end
  
  @response = JSON[response] if response.class == String

  @error = if !!@response['error']
    response['error']
  else
    response
  end
  
  begin
    if !!@error['data']
      # These are, by far, the more interesting errors, so we try to pull
      # them out first, if possible.
      
      @error_code = @error['data']['code']
      stacks = @error['data']['stack']
      stack_formats = nil
      
      @error_message = if !!stacks
        stack_formats = stacks.map { |s| s['format'] }
        stack_datum = stacks.map { |s| s['data'] }
        data_call_method = stack_datum.find { |data| data['call.method'] == 'call' }
        # data_name = stack_datum.find { |data| !!data['name'] }
        
        # See if we can recover a transaction id out of this hot mess.
        data_trx_ix = stack_datum.find { |data| !!data['trx_ix'] }
        @trx_id = data_trx_ix['trx_ix'] if !!data_trx_ix
        
        stack_formats.reject(&:empty?).join('; ')
      else
        @error_code ||= @error['code']
        @error['message']
      end
      
      @api_name, @api_method, @api_params = if !!data_call_method
        @api_name = data_call_method['call.params']
      end
    else
      @error_code = @error['code']
      @error_message = @error['message']
      @expiry = false
      @can_retry = false
      @can_reprepare = false
    end
    
    case @error_code
    when -32603
      if error_match?('Internal Error')
        @expiry = false
        @can_retry = true
        @can_reprepare = true
      end
    when -32003
      if error_match?('Unable to acquire database lock')
        @expiry = false
        @can_retry = true
        @can_reprepare = true
      end
    when -32000
      @expiry = false
      @can_retry = coerce_backtrace
      @can_reprepare = if @api_name == 'network_broadcast_api'
        error_match(REPREPARE_WHITELIST)
      else
        false
      end
    when 10
      @expiry = false
      @can_retry = coerce_backtrace
      @can_reprepare = !!stack_formats && (stack_formats & REPREPARE_WHITELIST).any?
    when 13
      @error_message = @error['data']['message']
      @expiry = false
      @can_retry = false
      @can_reprepare = false
    when 3030000
      @error_message = @error['data']['message']
      @expiry = false
      @can_retry = false
      @can_reprepare = false
    when 4030100
      # Code 4030100 is "transaction_expiration_exception: transaction
      # expiration exception".  If we assume the expiration was valid, the
      # node might be bad and needs to be dropped.
      
      @expiry = true
      @can_retry = true
      @can_reprepare = false
    when 4030200
      # Code 4030200 is "transaction tapos exception".  They are recoverable
      # if the transaction hasn't expired yet.  A tapos exception can be
      # retried in situations where the node is behind and the tapos is
      # based on a block the node doesn't know about yet.
      
      @expiry = false
      @can_retry = true
      
      # Allow fall back to reprepare if retry fails.
      @can_reprepare = true
    else
      @expiry = false
      @can_retry = false
      @can_reprepare = false
    end
  rescue => e
    if defined? ap
      if ENV['DEBUG'] == 'true'
        ap error_parser_exception: e, original_response: response, backtrace: e.backtrace
      else
        ap error_parser_exception: e, original_response: response
      end
    end
    
    @expiry = false
    @can_retry = false
    @can_reprepare = false
  end
end