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111 lines
3.1 KiB
111 lines
3.1 KiB
require_relative '../../lib/carto/http/client'
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require_relative '../../services/sql-api/sql_api'
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require_relative '../helpers/common_data_redis_cache'
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require_relative '../../lib/carto_api/json_client'
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class CommonData
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include ::LoggerHelper
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def initialize(visualizations_api_url)
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@datasets = nil
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@http_client = Carto::Http::Client.get('common_data', log_requests: true)
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@visualizations_api_url = visualizations_api_url
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end
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def datasets
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return @datasets unless @datasets.nil?
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@datasets = []
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if is_enabled?
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is_https_request = (@visualizations_api_url =~ /^https:\/\//)
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cached_data = redis_cache.get(is_https_request)
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if cached_data.nil?
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client = CartoAPI::JsonClient.new(http_client_tag: 'common_data')
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begin
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response = client.get_visualizations_v1_from_url(@visualizations_api_url)
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if response.code == 200
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@datasets = get_datasets(response.response_body)
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redis_cache.set(is_https_request, response.headers, response.response_body)
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else
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log_warning(message: "Error retrieving common data datasets", error_detail: response.inspect)
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end
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rescue StandardError => e
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log_error(exception: e)
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end
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else
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@datasets = get_datasets(cached_data[:body])
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end
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log_error(message: 'common-data empty', url: @visualizations_api_url) if @datasets.empty?
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end
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@datasets
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end
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def is_enabled?
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!config('username').nil?
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end
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private
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def get_datasets(json)
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begin
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rows = JSON.parse(json).fetch('visualizations', [])
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rescue StandardError => e
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log_error(exception: e)
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rows = []
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end
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datasets = []
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rows.each do |row|
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# Common-data's meta tables starts with meta_ and we want to avoid them
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next if row["name"] =~ /meta_/
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datasets << get_common_data_from_visualization(row)
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end
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datasets
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end
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def get_common_data_from_visualization(row)
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{
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"name" => row["name"],
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"display_name" => row["display_name"].nil? ? row["name"] : row["display_name"],
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"tabname" => row["name"],
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"attributions" => row["attributions"],
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"description" => row["description"],
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"source" => row["source"],
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"license" => row["license"],
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"tags" => row["tags"],
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"geometry_types" => %Q[{#{row["table"]["geometry_types"].join(',')}}],
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"rows" => row["table"]["row_count"],
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"size" => row["table"]["size"],
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"url" => export_url(row["name"]),
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"created_at" => row["created_at"],
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"updated_at" => row["updated_at"]
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}
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end
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def export_url(table_name)
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query = %Q[select * from "#{table_name}"]
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sql_api_url(query, table_name, config('format', 'gpkg'))
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end
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def sql_api_url(query, filename, format)
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common_data_base_url = config('base_url')
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CartoDB::SQLApi.new({
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base_url: common_data_base_url,
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protocol: 'https',
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username: config('username'),
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}).url(query, format, filename)
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end
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def config(key, default = nil)
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Cartodb.get_config(:common_data, key) || default
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end
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def redis_cache
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@redis_cache ||= CommonDataRedisCache.new
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end
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end
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