89 lines
2.6 KiB
Ruby
89 lines
2.6 KiB
Ruby
# frozen_string_literal: true
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require 'runner/runner_connection'
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class Runner < ApplicationRecord
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BASE_URL = CodeOcean::Config.new(:code_ocean).read[:runner_management][:url]
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HEADERS = {'Content-Type' => 'application/json'}.freeze
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UNUSED_EXPIRATION_TIME = CodeOcean::Config.new(:code_ocean).read[:runner_management][:unused_runner_expiration_time].seconds
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belongs_to :execution_environment
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belongs_to :user, polymorphic: true
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before_create :new_runner
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before_destroy :destroy_runner
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validates :execution_environment, presence: true
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validates :user, presence: true
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def self.for(user, exercise)
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execution_environment = ExecutionEnvironment.find(exercise.execution_environment_id)
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runner = Runner.find_or_create_by(user: user, execution_environment: execution_environment)
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return runner if runner.save
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raise RunnerNotAvailableError.new('No runner available')
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end
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def copy_files(files)
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url = "#{runner_url}/files"
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body = {files: files.map {|filename, content| {filepath: filename, content: content} }}
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response = Faraday.patch(url, body.to_json, HEADERS)
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return unless response.status == 404
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# runner has disappeared for some reason
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destroy
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raise RunnerNotAvailableError.new('Runner unavailable')
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end
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def execute_command(command)
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url = "#{runner_url}/execute"
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response = Faraday.post(url, {command: command}.to_json, HEADERS)
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if response.status == 404
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# runner has disappeared for some reason
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destroy
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raise RunnerNotAvailableError.new('Runner unavailable')
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end
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parse response
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end
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def execute_interactively(command)
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starting_time = Time.zone.now
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websocket_url = execute_command(command)[:websocketUrl]
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EventMachine.run do
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socket = RunnerConnection.new(websocket_url)
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yield(self, socket) if block_given?
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end
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Time.zone.now - starting_time # execution time
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end
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def destroy_runner
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Faraday.delete runner_url
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end
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def status
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# TODO: return actual state retrieved via websocket
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:timeouted
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end
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private
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def new_runner
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url = "#{BASE_URL}/runners"
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time_limit = CodeOcean::Config.new(:code_ocean)[:runner_management][:unused_runner_expiration_time]
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body = {executionEnvironmentId: execution_environment.id, timeLimit: time_limit}
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response = Faraday.post(url, body.to_json, HEADERS)
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response_body = parse response
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self.runner_id = response_body[:runnerId]
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throw :abort unless response.status == 200
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end
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def runner_url
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"#{BASE_URL}/runners/#{runner_id}"
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end
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def parse(response)
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JSON.parse(response.body).deep_symbolize_keys
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end
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end
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