Class: ActiveCMIS::Rendition

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(repository, document, link) ⇒ Rendition

Returns a new instance of Rendition.



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# File 'lib/active_cmis/rendition.rb', line 15

def initialize(repository, document, link)
  @repository = repository
  @document = document

  @rel = link['rel'] == "alternate"
  @rendition_kind = link['renditionKind'] if rendition?
  @format = link['type']
  if link['href']
    @url = URI(link['href'])
  else # For inline content streams
    @data = link['data']
  end
  @size = link['length'] ? link['length'].to_i : nil


  @link = link # FIXME: For debugging purposes only, remove
end

Instance Attribute Details

#document ⇒ ActiveCMIS::Document (readonly)

Returns The document to which the rendition belongs.

Returns:



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# File 'lib/active_cmis/rendition.rb', line 12

def document
  @document
end

#format ⇒ String? (readonly)

Returns The format is equal to the mime type, but may be unset or misleading.

Returns:

  • (String, nil) —

    The format is equal to the mime type, but may be unset or misleading



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# File 'lib/active_cmis/rendition.rb', line 10

def format
  @format
end

#rendition_kind ⇒ String? (readonly)

Returns:

  • (String, nil) 


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# File 'lib/active_cmis/rendition.rb', line 8

def rendition_kind
  @rendition_kind
end

#repository ⇒ Repository (readonly)

Returns:



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# File 'lib/active_cmis/rendition.rb', line 4

def repository
  @repository
end

#size ⇒ Numeric? (readonly)

Returns Size of the rendition, may not be given or misleading.

Returns:

  • (Numeric, nil) —

    Size of the rendition, may not be given or misleading



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# File 'lib/active_cmis/rendition.rb', line 6

def size
  @size
end

Instance Method Details

#get_data ⇒ Hash

Returns a hash with the data of te rendition, the length and the content type

WARNING: this loads all the data in memory Possible future enhancement could be to allow a block to which data is passed in chunks?r Not sure that is possible with Net::HTTP though.

Parameters:

  • filename (String) —

    Location to store the content.

Returns:

  • (Hash) 


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# File 'lib/active_cmis/rendition.rb', line 60

def get_data
  if @url
    response = repository.conn.get_response(@url)
    status = response.code.to_i
    if 200 <= status && status < 300
      data = response.body
    elsif 300 <= status && status < 400
      location = response["location"]
      new_url = URI.parse(location)
      new_url = @url + location if new_url.relative?
      @url = new_url
      get_data
    else
      raise HTTPError.new("Problem downloading rendition: status: #{status}, message: #{response.body}")
    end
    content_type = response.content_type
    content_length = response.content_length || response.body.length # In case content encoding is chunked? ??
  else
    data = @data
    content_type = @format
    content_length = @data.length
  end

  {:data => data, :content_type => content_type, :content_length => content_length}
end

#get_file(file_name) ⇒ Hash

Returns a hash with the name of the file to which was written, the length, and the content type

WARNING: this loads the complete file in memory and dumps it at once, this should be fixed

Parameters:

  • filename (String) —

    Location to store the content.

Returns:

  • (Hash) 


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# File 'lib/active_cmis/rendition.rb', line 47

def get_file(file_name)
  response = get_data
  File.open(file_name, "w") {|f| f.syswrite response.delete(:data) }
  response.merge!(:file_name => file_name)
end

#primary? ⇒ Boolean

Used to differentiate between rendition and primary content

Returns:

  • (Boolean) 


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# File 'lib/active_cmis/rendition.rb', line 38

def primary?
  @rel.nil?
end

#rendition? ⇒ Boolean

Used to differentiate between rendition and primary content

Returns:

  • (Boolean) 


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# File 'lib/active_cmis/rendition.rb', line 34

def rendition?
  @rel == "alternate"
end