Class: Alula::AttachmentProcessor

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts) ⇒ AttachmentProcessor

Returns a new instance of AttachmentProcessor.



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# File 'lib/alula/attachment_processor.rb', line 9

def initialize(opts)
  @site = opts.delete(:site)
  
  @@lock = Mutex.new
end

Instance Attribute Details

#site ⇒ Object (readonly)

Returns the value of attribute site.



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# File 'lib/alula/attachment_processor.rb', line 7

def site
  @site
end

Class Method Details

.processors ⇒ Object 



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# File 'lib/alula/attachment_processor.rb', line 4

def self.processors; @@processors ||= {}; end

.register(name, klass) ⇒ Object 



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# File 'lib/alula/attachment_processor.rb', line 3

def self.register(name, klass); processors[name] = klass; end

Instance Method Details

#asset_name(name, *path) ⇒ Object 



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# File 'lib/alula/attachment_processor.rb', line 19

def asset_name(name, *path)
  path ||= []

  @@lock.synchronize do      
    md5 = Digest::MD5.hexdigest(name)
    asset_hash = md5[0..3]
    asset_name = File.join(path + [asset_hash]) + File.extname(name)
    until !mapping.key(asset_name) or mapping.key(asset_name) == name.downcase
      asset_hash = md5[0..(asset_hash.length)]
      asset_name = File.join(path + [asset_hash]) + File.extname(name)
    end
  
    mapping[name.downcase] = asset_name
  end
  
  mapping[name.downcase]
end

#get(item) ⇒ Object 



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# File 'lib/alula/attachment_processor.rb', line 37

def get(item)
  # Try to use cached processor for extension
  type = _type(item)
  options = site.config.attachments[type]
  self.processors[type].new(item, options: options, site: site, attachments: self)
end

#mapping ⇒ Object 



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# File 'lib/alula/attachment_processor.rb', line 15

def mapping
  @mapping ||= {}
end

#processors ⇒ Object 



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# File 'lib/alula/attachment_processor.rb', line 5

def processors; self.class.processors; end