3dd13 3dd13

## batch_concurrent_requests_by_typhoeus.rb

  def main
    # urls is a hash containing url to retrieve statuses of items
    get_csv(urls, items) { |response, item|
      item_results = CSV.parse_line(response.body)
      item.setStatus(item_results[0])
    }
  end

  def process_response(urls, items)

## ftp_client.py
import ftplib
from ftplib import FTP

buffer = '\x41' * 400

try:
  ftp = FTP('127.0.0.1')
  ftp.login(user, password)
  ftp.transfercmd("command" + buffer)
  print 'xxx'

## download_open_rice_contact.rb
require 'rubygems'
require 'mechanize'
require 'fastercsv'

def get_all_option_values(page, attr_name)
  page.search("[name=#{attr_name}]").search("option").map do |opt|
    option_value = opt.attribute("value").value
    [option_value, opt.text.strip.gsub(/\302\240\302\240/, '')] if option_value && option_value.length > 0
  end.compact
end

## css_xpath_selector_benchmarking.rb
require 'rubygems'
require 'mechanize'
require 'benchmark'

agent = Mechanize.new
# however, this fetch already spend around 2 seconds. one http request response.
page = agent.get('http://www.ufood.com.hk/search/search.action?name=&distIds=4,10,11,3,5,8,6,7,2,1,9,12,13,14,15,18,16,17,19,20,21,22,23,24,25,26,33,34,27,35,32,30,29,28,31&ftIds=')

Benchmark.bm do |b|
  # search by tag name and class 10.470000   0.040000  10.510000 ( 11.149709)

## 1_controller_test.rb
  test "not allow to update state after account reconciliation" do
    # get fixture
    account = accounts(:fresh)

    # submit and expect no errors
    post :waive_fee, :id => account.id
    assert_nil flash[:error]

    post :add_fee, :id => account.id
    assert_nil flash[:error]

## generate_ssh_keys.rb
define :generate_ssh_keys, :user_account => nil do
  username = params[:user_account]

  raise ":user_account should be provided." if username.nil?

  Chef::Log.debug("generate ssh skys for #{username}.")

  execute "generate ssh skys for #{username}." do
    user username
    creates "/home/#{username}/.ssh/id_rsa.pub"

## stock_daily_price.rb
require 'rubygems'
require 'active_record'
require 'yaml'

dbconfig = YAML::load(File.new(File.join(File.dirname(__FILE__), "../../config/database.yml")))
ActiveRecord::Base.establish_connection(dbconfig["development"])

class StockDailyPrice < ActiveRecord::Base
  def initialize(stock_values, stock_no = "")
    super()

## log_rotation.rb
  def logger
    @logger ||= Logger.new(File.new("data_loader.log"),3,5*1024*1024)
  end

## clear_log.rb
cron "housekeep application log files" do
  user "housekeeper"
  # mailto "your@example.com"

  # 00:01 every night
  hour "0"
  minute "1"

  # clean up logs older than 30 days
  command "/find ~/log/application-*.log.tar.gz -mtime +30 -exec rm {} \;"

## row_is_cut_in_the_middle_solution.rb
# gem "prawn", "0.8.4"
# Sometime there is no enough space for the last table row when it reaches the end of page

Prawn::Document.generate("text_group_overflow_question.pdf") do |pdf|
  add_page_break_if_overflow(pdf) do |pdf|
    # generating table here
    # ...
  end
end

	def main
	# urls is a hash containing url to retrieve statuses of items
	get_csv(urls, items) { \|response, item\|
	item_results = CSV.parse_line(response.body)
	item.setStatus(item_results[0])
	}
	end

	def process_response(urls, items)
	import ftplib
	from ftplib import FTP

	buffer = '\x41' * 400

	try:
	ftp = FTP('127.0.0.1')
	ftp.login(user, password)
	ftp.transfercmd("command" + buffer)
	print 'xxx'
	require 'rubygems'
	require 'mechanize'
	require 'fastercsv'

	def get_all_option_values(page, attr_name)
	page.search("[name=#{attr_name}]").search("option").map do \|opt\|
	option_value = opt.attribute("value").value
	[option_value, opt.text.strip.gsub(/\302\240\302\240/, '')] if option_value && option_value.length > 0
	end.compact
	end
	require 'rubygems'
	require 'mechanize'
	require 'benchmark'

	agent = Mechanize.new
	# however, this fetch already spend around 2 seconds. one http request response.
	page = agent.get('http://www.ufood.com.hk/search/search.action?name=&distIds=4,10,11,3,5,8,6,7,2,1,9,12,13,14,15,18,16,17,19,20,21,22,23,24,25,26,33,34,27,35,32,30,29,28,31&ftIds=')

	Benchmark.bm do \|b\|
	# search by tag name and class 10.470000 0.040000 10.510000 ( 11.149709)
	test "not allow to update state after account reconciliation" do
	# get fixture
	account = accounts(:fresh)

	# submit and expect no errors
	post :waive_fee, :id => account.id
	assert_nil flash[:error]

	post :add_fee, :id => account.id
	assert_nil flash[:error]
	define :generate_ssh_keys, :user_account => nil do
	username = params[:user_account]

	raise ":user_account should be provided." if username.nil?

	Chef::Log.debug("generate ssh skys for #{username}.")

	execute "generate ssh skys for #{username}." do
	user username
	creates "/home/#{username}/.ssh/id_rsa.pub"
	require 'rubygems'
	require 'active_record'
	require 'yaml'

	dbconfig = YAML::load(File.new(File.join(File.dirname(__FILE__), "../../config/database.yml")))
	ActiveRecord::Base.establish_connection(dbconfig["development"])

	class StockDailyPrice < ActiveRecord::Base
	def initialize(stock_values, stock_no = "")
	super()
	def logger
	@logger \|\|= Logger.new(File.new("data_loader.log"),3,510241024)
	end
	cron "housekeep application log files" do
	user "housekeeper"
	# mailto "your@example.com"

	# 00:01 every night
	hour "0"
	minute "1"

	# clean up logs older than 30 days
	command "/find ~/log/application-*.log.tar.gz -mtime +30 -exec rm {} \;"
	# gem "prawn", "0.8.4"
	# Sometime there is no enough space for the last table row when it reaches the end of page

	Prawn::Document.generate("text_group_overflow_question.pdf") do \|pdf\|
	add_page_break_if_overflow(pdf) do \|pdf\|
	# generating table here
	# ...
	end
	end