create getter setter methods for java, by writing order for this java bean

create_getter_setter_methods_for_java.rb

#encoding: utf-8

require 'find'

class CreateGetterSetterMethodsForJava

  def initialize
    @work_path = File.dirname(File.expand_path(__FILE__))
    if ARGV.length != 0
      if File.file?(ARGV[0])
        @work_path = File.dirname(File.expand_path(ARGV[0]))
      else
        @work_path = File.expand_path ARGV[0]
      end
    end
  end

  def create
    Find.find(@work_path) do |file|
      if File.file?(file) && File.extname(file) == '.java'
        field_type = {}
        lines = File.readlines file
        lines.each do |line|
          line.scan(/[a-zA-Z ]+\s(?<type>.+)\s(?<field>[a-zA-Z0-9_]+?)(\s*?=\s*?.+)?;/) do |type, field|
            field_type[field.to_s] = type.to_s
          end
        end

        index = -1
        lines.reverse.each_with_index do |line, i|
          if line =~ /.*}{1}.*/
            index = lines.size - i
            break
          end
        end

        new_lines = Array.new(lines[0, index - 1])
        field_type.each do |field, type|
          new_lines << getter_str(field, type)
          new_lines << setter_str(field, type)
        end
        new_lines += lines[index - 1.. -1]

        File.open(file, 'w') do |file|
          new_lines.each do |line|
            file.puts line
          end
        end
        puts "#{File.basename(file)} has created over."
      end
    end
    puts "all file has created over."
  end

  def getter_str(field, type)
    str = <<-"getter_str"

    public #{type} get#{field[0].upcase}#{field[1..-1]}() {
        return #{field};
    }
    getter_str

    if type == 'boolean'
      str = <<-"getter_str"

    public boolean is#{field[0].upcase}#{field[1..-1]}() {
        return #{field};
    }
      getter_str
    end
    str
  end

  def setter_str(field, type)
    return <<-"setter_str"

    public void set#{field[0].upcase}#{field[1..-1]}(#{type} #{field}) {
        this.#{field} = #{field};
    }
    setter_str
  end

end

CreateGetterSetterMethodsForJava.new.create