Class: Picasa::File

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

Defined Under Namespace

Classes: Null

Constant Summary collapse

KnownExtensions = 
%w{jpg jpeg png gif bmp 3gp mp4 mpeg mov wmv asf avi}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ File

Returns a new instance of File.



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# File 'lib/picasa/file.rb', line 15

def initialize(path)
  @path = path || raise(ArgumentError.new("path not specified"))
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/picasa/file.rb', line 13

def path
  @path
end

Instance Method Details

#binary ⇒ Object 



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# File 'lib/picasa/file.rb', line 27

def binary
  @binary ||= ::File.open(path, "rb").read
end

#content_type ⇒ Object

Returns content type based on file extension You should use something like: ‘file -b –mime-type path/to/file.avi` to be sure what is the proper content type



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# File 'lib/picasa/file.rb', line 34

def content_type
  @content_type ||= case extension
  when /^jpe?g$/i
    "image/jpeg"
  when /^gif$/i
    "image/gif"
  when /^png$/i
    "image/png"
  when /^bmp$/i
    "image/bmp"
  # Videos
  when /^3gp$/i
    "video/3gpp"
  when /^mp4$/i
    "video/mp4"
  when /^mpeg$/i
    "video/mpeg"
  when /^mov$/i
    "video/quicktime"
  when /^wmv$/i
    "video/x-ms-wmv"
  when /^asf$/i
    "video/x-ms-asf"
  when /^avi$/i
    "video/avi"
  else
    raise UnknownContentType.new("Content type cannot be guessed from file extension: #{extension}")
  end
end

#extension ⇒ Object 



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# File 'lib/picasa/file.rb', line 23

def extension
  @extension ||= ::File.extname(path)[1..-1]
end

#name ⇒ Object 



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# File 'lib/picasa/file.rb', line 19

def name
  @name ||= ::File.basename(path, ".*")
end