Generator Script for Information Systems 2 Assignment Note: This was not part of the assignment and therefore it isn't plagiarism to use this & obviously there is no point submitting this code.

generate_transactions.rb

#!/usr/bin/ruby
 
=begin
Copyright (c) 2013 Shane Quigley
 
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
=end
 
def gen_trans max_ops, int_bound
        num_ops = rand(max_ops) + 1
        out = ""
        num_ops.times do 
                if(rand(2) != 0)
                        out += "#{rand(1000)} #{rand(2*int_bound) - 2*int_bound}\n"
                else
                        out += "#{rand(1000)} READ\n"
                end
        end
        return out
end
 
def print_usage
        print "Usage:\nruby generate_transactions.rb #_transactions max_#_"
        print "of_ops_per_transaction bound_on_integer_ops\n"
        print "\neg. ruby generate_transactions.rb 3 4 100000\n"
        print "Produces something like:\n"
        print "\t745 -1526\n"
        print "\t896 READ\n"
        print "\t562 -1374\n"
        print "\t\n"
        print "\t386 READ\n"
        print "\t249 -473\n"
        print "\t905 READ\n"
        print "\t488 -1036\n"
        print "\t\n"
        print "\t70 -621\n"
        print "\t373 -1605\n"                                                                                                                                                                   
        print "\t\n"                                                                                                                                                                            
end                                                                                                                                                                                             
                                                                                                                                                                                                
def args_are_numbers
        ARGV.each do |a|
                if(a.match(/\d+/).to_s.size != a.size)
                        return false
                end
        end
        true
end
 
if(!ARGV.empty? && args_are_numbers)
        begin
                ARGV[0].to_i.times do 
                        puts gen_trans(ARGV[1].to_i, ARGV[2].to_i)
                        puts
                end
        rescue
                print_usage
        end
else
        print_usage
end