canvas-lms/lib/address_book/performance_tap.rb

86 lines
2.4 KiB
Ruby

# frozen_string_literal: true
#
# Copyright (C) 2017 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
module AddressBook
class PerformanceTap < AddressBook::MessageableUser
def initialize(sender)
super sender
@service_tap = AddressBook::Service.new(sender, ignore_result: true)
end
def known_users(users, options = {})
@service_tap.known_users(users, options)
super
end
def known_in_context(context)
@service_tap.known_in_context(context)
super
end
def count_in_contexts(contexts)
@service_tap.count_in_contexts(contexts)
super
end
# makes a wrapper around two paginated collections, one for source and one
# for the tap. proxies pagination information and results to and from the
# source collection, but also executes pagination against the tap
# collection for every source page.
class TapProxy < PaginatedCollection::Proxy
def initialize(source_collection:, tap_collection:)
@source_collection = source_collection
super lambda do |source_pager|
tap_pager = tap_collection.configure_pager(
tap_collection.new_pager,
per_page: source_pager.per_page,
total_entries: nil
)
tap_collection.execute_pager(tap_pager)
source_collection.execute_pager(source_pager)
end
end
def depth
@source_collection.depth
end
def new_pager
@source_collection.new_pager
end
def configure_pager(pager, options)
@source_collection.configure_pager(pager, options)
end
end
def search_users(options = {})
TapProxy.new(
source_collection: super,
tap_collection: @service_tap.search_users(options)
)
end
def preload_users(users)
@service_tap.preload_users(users)
super
end
end
end