Class: Valkyrie::Shrine::Checksum::S3

Inherits:
Base
  • Object
show all
Defined in:
lib/valkyrie/shrine/checksum/s3.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#digest_class, #simple_digest, #verify_checksum

Constructor Details

#initialize(threshold: 15 * 1024 * 1024, part_size: 5 * 1024 * 1024) ⇒ S3

Returns a new instance of S3.



13
14
15
16
 
# File 'lib/valkyrie/shrine/checksum/s3.rb', line 13

def initialize(threshold: 15 * 1024 * 1024, part_size: 5 * 1024 * 1024)
  @threshold = threshold
  @part_size = part_size
end

Instance Attribute Details

#part_size ⇒ Object (readonly)

Returns the value of attribute part_size.



7
8
9
 
# File 'lib/valkyrie/shrine/checksum/s3.rb', line 7

def part_size
  @part_size
end

#threshold ⇒ Object (readonly)

Returns the value of attribute threshold.



7
8
9
 
# File 'lib/valkyrie/shrine/checksum/s3.rb', line 7

def threshold
  @threshold
end

Class Method Details

.digest_class ⇒ Object 



9
10
11
 
# File 'lib/valkyrie/shrine/checksum/s3.rb', line 9

def self.digest_class
  Digest::MD5
end

Instance Method Details

#calculate_checksum(result) ⇒ Object 



18
19
20
 
# File 'lib/valkyrie/shrine/checksum/s3.rb', line 18

def calculate_checksum(result)
  result.io.data[:object].data.etag.delete('"')
end

#checksum_for(io) ⇒ Object 



22
23
24
25
 
# File 'lib/valkyrie/shrine/checksum/s3.rb', line 22

def checksum_for(io)
  io.rewind
  io.size < threshold ? simple_digest(io) : multipart_checksum(io)
end