Class: OoyalaFb

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

Overview

The logging level is set to INFO by default. Change it to Logger::ERROR if info messages about missing attribute values need not be logged in the file in the initialize method.

Constant Summary collapse

QUERY_EXPIRES_IN = 
1000
FACEBOOK_MAX_WIDTH =

Maximum width allowed for facebook videos. If the video being uploaded has a width greater than this, it will be reduced to make the width the same as FACEBOOK_MAX_WIDTH while maintaining the same aspect ratio between height and width.

420

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ OoyalaFb

Returns a new instance of OoyalaFb.



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# File 'lib/ooyala_fb.rb', line 30

def initialize (options = {})
  @partner_code = options[:partner_code]
  @secret_code  = options[:secret_code]
  @log = options[:log]
  @log_path = options[:log_path]
  
  # Create a logger which ages logfile once it reaches
  # a certain size. Leave 10 "old log files" and each file is about 1,024,000 bytes.
  # log disabled by default
  
  if @log
    log_path = options[:log_path] || 'ooyala_fb.log' 
    $LOG = Logger.new(log_path, 10, 1024000)

    # Set the default logging level to INFO. So it will print messages
    # about missing attribute values in the FacebookSharing.log file.
    # Change this to Logger:ERROR if the messages should not be logged.
    $LOG.sev_threshold = Logger::INFO 
  end
end

Instance Method Details

#header(embed_code) ⇒ Object

Returns the string containing meta tags required by videos being uploaded to facebook for the given embed code, partner code and secret code video.



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# File 'lib/ooyala_fb.rb', line 54

def header (embed_code)
  # Get the url for the passed in partner_code, secret_code and embed_code
  url = get_url('embedCode'=> embed_code)

  # Get the xml data for the url.
  xml_data = Net::HTTP.get_response(URI.parse(url)).body

  # Parse the xml document to get the values for creating meta tags
  doc = REXML::Document.new(xml_data)

  # Fill the hash map with the key value pairs for the required meta tags
  # by getting the values from the parsed xml
  tags     = ['title', 'description', 'thumbnail', 'height', 'width', 'embedCode']
  metadata = {}
  tags.map{|tag| metadata[tag] = get_node_value(doc, tag, embed_code)}

  # Adjust video width to max allowed by Facebook, if required.
  if metadata['width'] != nil
    if Integer(metadata['width']) > FACEBOOK_MAX_WIDTH
      metadata['height'] = get_adjusted_height(Integer(metadata['width']), Integer(metadata['height']))
      metadata['width']  = FACEBOOK_MAX_WIDTH
    end
  end

  # Construct the meta tags string by substituting the values from the metadata hashmap.
  meta_tags = %Q{
    <meta name="medium" content="video" />
    <meta name="title" content="#{metadata['title']}" />
    <meta name="description" content="#{metadata['description']}" />
    <link rel="image_src" href="#{metadata['thumbnail']}" />
    <link rel="video_src" href="http://player.ooyala.com/player.swf?\
embedCode=#{metadata['embedCode']}&keepEmbedCode=true" />
    <meta name="video_height" content="#{metadata['height']}" />
    <meta name="video_width" content="#{metadata['width']}" />
    <meta name="video_type" content="application/x-shockwave-flash" />
  }

  # return the meta tags string with the values retrieved for the embedCode
  return meta_tags
end