| File | % covered | Lines | Relevant Lines | Lines covered | Lines missed | Avg. Hits / Line |
|---|---|---|---|---|---|---|
| lib/epn-api.rb | 100.0 % | 12 | 6 | 6 | 0 | 1.0 |
| lib/epn_api/api.rb | 100.0 % | 32 | 16 | 16 | 0 | 6.4 |
| lib/epn_api/api_doc.rb | 100.0 % | 91 | 55 | 55 | 0 | 6.0 |
| lib/epn_api/paper.rb | 100.0 % | 80 | 27 | 27 | 0 | 10.4 |
| spec/api_spec.rb | 100.0 % | 58 | 33 | 33 | 0 | 1.6 |
| spec/paper_spec.rb | 100.0 % | 107 | 43 | 43 | 0 | 1.1 |
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require 'nokogiri'
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require 'net/http'
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module EpnApi
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autoload :Paper, "epn_api/paper"
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autoload :Api, "epn_api/api"
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autoload :ApiDoc, "epn_api/api_doc"
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end
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module EpnApi
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module Api
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def uri_builder( request_xml )
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uri = URI.parse("http://calculator.environmentalpaper.org/v0/xml")
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url_value = URI.escape( request_xml )
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url_query = "papers=#{url_value}"
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encoded_url = URI::HTTP.build({:host => "calculator.environmentalpaper.org", :path => "/v0/xml", :query => url_query})
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return encoded_url
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end
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def get_epn_response_doc( request_xml )
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encoded_url = self.uri_builder( request_xml )
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Net::HTTP.get_response( encoded_url )
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end
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def accept_status( response_doc )
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if (response_doc.inspect =~ /400/) then raise "HTTP Code 400 | Bad Request | The request cannot be fulfilled due to bad syntax."
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elsif (response_doc.inspect =~ /500/) then raise "HTTP Code 500 | Internal Server Error"
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elsif (response_doc.inspect =~ /200/) then return true
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else raise "Unknown HTTP Code Error"
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end
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end
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end
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end
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# output URL
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# "http://calculator.environmentalpaper.org/v0/xml?papers=%3C?xml%20version=%221.0%22?%3E%0A%3Cpapers%20client=%221E1SLaUlfvOKO3q5MLC01x4Ap6M%22%3E%0A%20%20%3Cgroup%20id=%220%22%20name=%22default%22%3E%0A%20%20%20%20%3Cpaper%20name=%22PaperApi%22%3E%0A%20%20%20%20%20%20%3Cgrade%3E5%3C/grade%3E%0A%20%20%20%20%20%20%3Cname%3ESupercalendered%20%28e.g.%20newspaper%20inserts%29%3C/name%3E%0A%20%20%20%20%20%20%3Cannualqp%3E10%3C/annualqp%3E%0A%20%20%20%20%20%20%3Cqpunits%20value=%22tons%22/%3E%0A%20%20%20%20%20%20%3Crecycledcontent%3E30%3C/recycledcontent%3E%0A%20%20%20%20%3C/paper%3E%0A%20%20%3C/group%3E%0A%3C/papers%3E%0A"
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module EpnApi
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class ApiDoc
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include Api
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attr_accessor :grade, :name, :annualqp, :recycledcontent,
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:bod, :cod, :greenhouse_gas, :hap, :nox, :particulates,
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:purchased_energy,:solid_waste, :so2, :net_energy, :trs,
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:tss, :voc, :wastewater, :wood_use
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TREES_PER_TON_OF_WOOD_USE = 6.93
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def to_epn_xml( paper )
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builder = Nokogiri::XML::Builder.new do |xml|
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xml.papers('client' => self.get_api_code) do
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xml.group('id' => '0', 'name' => "default") do
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xml.paper('name' => 'PaperApi') do
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xml.grade_ paper.grade
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xml.name_ paper.name
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xml.annualqp_ paper.annualqp['amount']
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xml.qpunits('value' => "#{paper.annualqp["qpunits"]}")
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xml.recycledcontent_ paper.recycledcontent
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end
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end
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end
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end
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builder.to_xml
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end
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def get_api_code
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api_code = ''
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api_code = YAML::load( File.open( './lib/api_code.yml' ) )
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return api_code
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end
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def from_epn_api(response_body)
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doc = Nokogiri::HTML(response_body)
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doc.xpath('//paper/grade').each do |node|
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self.grade= node.text.strip
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end
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doc.xpath('//paper/name').each do |node|
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self.name = node.text.strip
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end
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doc.xpath('//paper/annualqp').each do |node|
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self.annualqp ||= {}
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self.annualqp["amount"] = node.text.strip
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end
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doc.xpath('//paper/qpunits').each do |node|
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self.annualqp ||= {}
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self.annualqp["qpunits"] = node.attributes['value'].value.strip
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end
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doc.xpath('//paper/recycledcontent').each do |node|
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self.recycledcontent = node.text.strip
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end
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doc.xpath('//eparam').each do |node|
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node_name = node.xpath('name').text.strip
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hash = {"unit" => node.xpath('unit').text.strip, "value" => node.xpath('value').text.strip}
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self.send("#{node_name}=", hash)
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end
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nil
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end
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def check_epn( request_xml )
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response_doc = self.get_epn_response_doc( request_xml )
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self.accept_status( response_doc )
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self.from_epn_api( response_doc.body )
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end
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def do_conversions!( paper )
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unit = paper.unit_check
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paper.trees = ((self.wood_use["value"].to_f/unit) * TREES_PER_TON_OF_WOOD_USE)
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paper.water = (self.wastewater["value"].to_f/unit)
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paper.energy = (self.net_energy["value"].to_f/unit)
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paper.solid_waste = (self.solid_waste["value"].to_f/unit)
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paper.greenhouse_gas = (self.greenhouse_gas["value"].to_f/unit)
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paper.annualqp["amount"] = (paper.annualqp["amount"]/unit)
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return nil
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end
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def epn_response!( paper )
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request_xml = self.to_epn_xml( paper )
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self.check_epn( request_xml )
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self.do_conversions!( paper )
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return paper
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end
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end
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end
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module EpnApi
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class Paper
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attr_accessor :grade, :name, :annualqp, :recycledcontent, :trees, :water, :energy, :solid_waste, :greenhouse_gas
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def initialize(args)
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self.grade = args[:grade] or raise "Paper needs Grade"
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self.recycledcontent = args[:recycled_percent] or raise "Paper needs Recycled Percent"
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self.name = args[:name] || get_name( args[:grade] )
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self.annualqp= {"amount" => 100000, "qpunits" => "pounds"}
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%w(trees water energy solid_waste greenhouse_gas).each do |column|
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self.send("#{column}=", args[column.to_sym]) if args[column.to_sym]
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end
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end
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def get_name(grade)
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paper_name_hash = self.initialize_paper_hash
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paper_name_hash[grade]
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end
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def initialize_paper_hash
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paper_name_hash = {
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1 => "Uncoated Freesheet (e.g. copy paper)" ,
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2 => "Coated Freesheet (e.g. high-end catalog)" ,
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3 => "Uncoated Groundwood (e.g. newsprint)" ,
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4 => "Coated Groundwood (e.g. catalog, magazine)" ,
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5 => "Supercalendered (e.g. newspaper inserts)" ,
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6 => "Corrugated: Unbleached" ,
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7 => "Corrugated: Semi-bleached" ,
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8 => "Corrugated: Bleached" ,
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9 => "Paperboard: Solid Bleached Sulfate (SBS)" ,
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10 => "Paperboard: Coated Unbleached Kraft (CUK)" ,
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11 => "Paperboard: Uncoated Bleached Kraft" ,
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12 => "Paperboard: Uncoated Unbleached Kraft" ,
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13 => "Paperboard: Coated Recycled Board (CRB)" ,
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}
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end
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def unit_check
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raise "incorrect units" if self.annualqp != {"amount" => 100000, "qpunits" => "pounds"}
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return self.annualqp["amount"]
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end
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# def object_id_strip_from_string
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# new_paper_string = self.inspect.to_s
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# new_paper_id = self.extract_id
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# new_paper_string.gsub( new_paper_id, '' )
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# end
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#
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# def extract_id
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# self.to_s[2..-2]
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# end
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# PUSH THIS PROCESS TO THE APP FROM THE WRAPPER, LET RAILS COMPARE
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# def compare(existing_paper)
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# new_paper_string = self.object_id_strip_from_string
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# existing_paper_string = existing_paper.object_id_strip_from_string
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# if (new_paper_string == existing_paper_string)
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# return false
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# else
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# return self
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# end
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# end
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def update_via_epn
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api_doc = EpnApi::ApiDoc.new
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api_doc.epn_response!( self )
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self.to_return_hash
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end
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def to_return_hash
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return_hash = Hash.new
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%w(grade recycledcontent name trees water energy solid_waste greenhouse_gas).each do |key|
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return_hash.store( key, self.send("#{key}"))
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end
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return return_hash
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end
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end
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end
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require 'spec_helper'
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describe "Api Transaction" do
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before(:each) do
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@paper_doc = EpnApi::Paper.new(:grade => 5, :recycled_percent => 30 )
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@api_doc = EpnApi::ApiDoc.new
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@request_xml = @api_doc.to_epn_xml( @paper_doc )
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end
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it "should build the correct URI" do
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test_uri = "http://calculator.environmentalpaper.org/v0/xml"
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@api_doc.uri_builder(@request_xml).should be_an_instance_of(URI::HTTP)
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end
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it "should send the request" do
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stub_request(:get, "#{@api_doc.uri_builder(@request_xml)}").to_return(:body => "Sent", :header => "200")
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response_doc = @api_doc.get_epn_response_doc( @request_xml )
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end
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it "should return a response" do
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response_xml = File.open("./spec/samples/response.xml")
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stub_request(:get, "#{@api_doc.uri_builder(@request_xml)}").to_return(:body => response_xml, :header => "200")
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response_doc = @api_doc.get_epn_response_doc( @request_xml )
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response_doc.should be_an_instance_of(Net::HTTPOK)
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end
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it "should allow a 200 status to pass" do
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stub_request(:get, "#{@api_doc.uri_builder(@request_xml)}").to_return(:body => "Sent", :status => 200)
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response_doc = @api_doc.get_epn_response_doc( @request_xml )
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@api_doc.accept_status( response_doc ).should be_true
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end
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it "should block anything else" do
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stub_request(:get, "#{@api_doc.uri_builder(@request_xml)}").to_return(:body => "Sent", :status => 300)
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response_doc = @api_doc.get_epn_response_doc( @request_xml )
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lambda { @api_doc.accept_status( response_doc ) }.should raise_error
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end
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it "should catch 400 status" do
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stub_request(:get, "#{@api_doc.uri_builder(@request_xml)}").to_return(:body => "Incorrect", :status => 400)
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response_doc = @api_doc.get_epn_response_doc( @request_xml )
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lambda { @api_doc.accept_status( response_doc ) }.should raise_error
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end
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it "should catch 500 status" do
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stub_request(:get, "#{@api_doc.uri_builder(@request_xml)}").to_return(:body => "Error", :status => 500)
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response_doc = @api_doc.get_epn_response_doc( @request_xml )
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lambda { @api_doc.accept_status( response_doc ) }.should raise_error
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end
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end
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require 'spec_helper'
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describe "Paper" do
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it "should choose the correct paper name from the grade" do
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paper1 = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30)
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(paper1.name =~ /Uncoated Freesheet/).should be_true
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paper2 = EpnApi::Paper.new(:grade => 5, :recycled_percent => 30)
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(paper2.name =~ /Supercalendered/).should be_true
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paper3 = EpnApi::Paper.new(:grade => 10, :recycled_percent => 30)
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(paper3.name =~ /CUK/).should be_true
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end
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it "should initialize when given a grade and recycled content" do
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paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30)
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paper.grade.should == 1
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(paper.name =~ /Uncoated Freesheet/).should be_true
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paper.annualqp.should == {"amount" => 100000, "qpunits" => "pounds"}
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paper.recycledcontent.should == 30
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end
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it "should initialize when given a grade and recycled content and other fields" do
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paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30, :trees => 1, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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paper.energy.should == 1
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paper.greenhouse_gas == 1
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end
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it "should raise an exception if no arguement is provided" do
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lambda { EpnApi::Paper.new() }.should raise_error
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end
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it "should raise an exception if paper grade is not provided" do
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lambda { EpnApi::Paper.new(:recycled_percent => 30) }.should raise_error
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end
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it "should raise an exception if recycled percent is not provided" do
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lambda { EpnApi::Paper.new(:grade => 1) }.should raise_error
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end
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it "should not raise an exception if grade and recycled percent are provided" do
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lambda { EpnApi::Paper.new(:grade => 1, :recycled_percent => 30) }.should_not raise_error
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end
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it "should retrieve the new values" do
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paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30, :trees => 1, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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existing_paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30, :trees => 1, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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response_xml = File.open("./spec/samples/response.xml")
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path = "http://calculator.environmentalpaper.org/v0/xml?papers=%3C?xml%20version=%221.0%22?%3E%0A%3Cpapers%20client=%221E1SLaUlfvOKO3q5MLC01x4Ap6M%22%3E%0A%20%20%3Cgroup%20id=%220%22%20name=%22default%22%3E%0A%20%20%20%20%3Cpaper%20name=%22PaperApi%22%3E%0A%20%20%20%20%20%20%3Cgrade%3E1%3C/grade%3E%0A%20%20%20%20%20%20%3Cname%3EUncoated%20Freesheet%20(e.g.%20copy%20paper)%3C/name%3E%0A%20%20%20%20%20%20%3Cannualqp%3E100000%3C/annualqp%3E%0A%20%20%20%20%20%20%3Cqpunits%20value=%22pounds%22/%3E%0A%20%20%20%20%20%20%3Crecycledcontent%3E30%3C/recycledcontent%3E%0A%20%20%20%20%3C/paper%3E%0A%20%20%3C/group%3E%0A%3C/papers%3E%0A"
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stub_request(:get, path).to_return(:status => 200, :body => response_xml, :headers => {})
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return_item = paper.update_via_epn
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return_item.should be_an_instance_of(Hash)
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existing_paper.energy.should_not == return_item["energy"]
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end
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it "should raise an exception if the unit is unacceptable" do
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paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30)
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paper.annualqp["qpunits"] = 'tons'
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lambda { paper.unit_check }.should raise_error
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end
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it "should return the conversion value if the unit is acceptable" do
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paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30)
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paper.unit_check.should == 100000
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end
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# REMOVED THIS FEATURE, LET RAILS HANDLE THE COMPARING OF THE OBJECTS
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# it "should return false if the existing and new paper values are the same using compare method" do
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# paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30, :trees => 1, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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# existing_paper = paper.clone
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# paper.compare(existing_paper).should be_false
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# end
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# it "should return the new values if the existing and new paper values are the same using compare method" do
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# paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30, :trees => 1, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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# existing_paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30, :trees => 2, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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# paper.compare(existing_paper).should_not be_false
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# end
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# it "should return a string without the object info" do
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# paper = EpnApi::Paper.new(:grade => 1, :recycled_percent => 30, :trees => 1, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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# paper.object_id_strip_from_string.gsub!(paper.extract_id, '').nil?.should be_true
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# end
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# it "should return false if the existing and new paper values are the same using update_paper method" do
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# paper = EpnApi::Paper.new(:grade => 5, :recycled_percent => 30, :trees => 1, :water => 1, :energy => 1, :solid_waste => 1, :greenhouse_gas => 1)
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# existing_paper = paper.clone
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# api_doc = EpnApi::ApiDoc.new
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# request_xml = api_doc.to_epn_xml( paper )
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# response_xml = File.open("./spec/samples/response.xml")
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# stub_request(:get, "#{api_doc.uri_builder(request_xml)}").to_return(:body => response_xml, :header => "200")
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#
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# p paper
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# p existing_paper
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#
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# p paper.update_paper
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#
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# end
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-
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end