Class: Droonga::GroongaAdapter::Select

Inherits:
Object
  • Object
show all
Defined in:
lib/droonga/plugin/adapter/groonga/select.rb

Instance Method Summary collapse

Instance Method Details

#convert_request(select_request) ⇒ Object 



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# File 'lib/droonga/plugin/adapter/groonga/select.rb', line 19

def convert_request(select_request)
  table = select_request["table"]
  result_name = table + "_result"
  match_columns = select_request["match_columns"]
  match_to = match_columns ? match_columns.split(/ *\|\| */) : []
  query = select_request["query"]
  output_columns = select_request["output_columns"] || ""
  attributes = output_columns.split(/, */)
  offset = (select_request["offset"] || "0").to_i
  limit = (select_request["limit"] || "10").to_i

  search_request = {
    "queries" => {
      result_name => {
        "source" => table,
        "output" => {
          "elements"   => [
            "startTime",
            "elapsedTime",
            "count",
            "attributes",
            "records",
          ],
          "attributes" => attributes,
          "offset" => offset,
          "limit" => limit,
        },
      }
    }
  }
  if query
    condition = {
      "query"  => query,
      "matchTo"=> match_to,
      "defaultOperator"=> "&&",
      "allowPragma"=> false,
      "allowColumn"=> true,
    }
    search_request["queries"][result_name]["condition"] = condition
  end
  search_request
end

#convert_response(search_response) ⇒ Object 



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# File 'lib/droonga/plugin/adapter/groonga/select.rb', line 62

def convert_response(search_response)
  select_responses = search_response.collect do |key, value|
    status_code = 0

    start_time = value["startTime"]
    start_time_in_unix_time = if start_time
                                Time.parse(start_time).to_f
                              else
                                Time.now.to_f
                              end
    elapsed_time = value["elapsedTime"] || 0
    count = value["count"]

    attributes = value["attributes"] || []
    converted_attributes = attributes.collect do |attribute|
      name = attribute["name"]
      type = attribute["type"]
      [name, type]
    end

    header = [status_code, start_time_in_unix_time, elapsed_time]
    records = value["records"]
    if records.empty?
      results = [[count], converted_attributes]
    else
      results = [[count], converted_attributes, records]
    end
    body = [results]

    [header, body]
  end
  select_responses.first
end