Class: UnAPI::Page

Inherits:
Object
  • Object
show all
Defined in:
lib/unapi/page.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(url) ⇒ Page

initialize the UnAPI::URI object with a web page url



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# File 'lib/unapi/page.rb', line 12

def initialize(url)
  @uri = URI.parse(url)
  @status_code, @document = Utils.get_html_document(url)
end

Instance Attribute Details

#document ⇒ Object (readonly)

Returns the value of attribute document.



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# File 'lib/unapi/page.rb', line 9

def document
  @document
end

#status_code ⇒ Object (readonly)

Returns the value of attribute status_code.



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# File 'lib/unapi/page.rb', line 9

def status_code
  @status_code
end

#uri ⇒ Object (readonly)

Returns the value of attribute uri.



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# File 'lib/unapi/page.rb', line 9

def uri
  @uri
end

Instance Method Details

#ids ⇒ Object

get a list of ids for the page



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# File 'lib/unapi/page.rb', line 54

def ids
  ids = []
  return ids if not @document
  @document.find_all('abbr') do |abbr|
    next unless abbr['class'] and abbr['title']
    # can have multiple css classes
    classes = abbr['class'].split(/\s+/)
    if classes.member? 'unapi-id'
      ids << abbr['title']
    end
  end
  return ids
end

#service ⇒ Object

get a service object for interacting with the unap service



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# File 'lib/unapi/page.rb', line 48

def service 
  return Service.new(service_url) if service_url
  return nil
end

#service_url ⇒ Object

the unapi service url



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# File 'lib/unapi/page.rb', line 18

def service_url
  return nil if not @document or not @document.head
  link_url = nil
  @document.head.find_all('link') do |link|
    link_url = link['href'] if link['rel'] == 'unapi-server'
  end
  return nil if not link_url

  # if it's a relative link it must be made non-relative using 
  # the url for the page
  service_uri = URI.parse(link_url)
  if service_uri.relative?
    service_uri.host = @uri.host 
    service_uri.port = @uri.port unless @uri.port == 80
    service_uri.scheme = @uri.scheme

    # some code I'm probably going to regret that pulls the
    # constructs the relative path from the page uri by 
    # removing everyting after the last slash on the page uri
    truncated_page_path = @uri.path.split('/')[0..-2].join('/')
    service_uri.path = truncated_page_path + '/' + service_uri.path
  end

  # if they included a ? let's get rid of that
  service_uri.query = nil if service_uri.query == ''

  return service_uri.to_s
end