Class: Necropsy::DefinitionIdentity::CanonicalDigest

Inherits:
Object
  • Object
show all
Defined in:
lib/necropsy/definition_identity/canonical_digest.rb

Defined Under Namespace

Classes: ByteBudget, DigestOutput, StringOutput

Constant Summary collapse

MAX_DEPTH = 
256
MAX_ITEMS = 
1_000_000
MAX_SCALAR_BYTES = 
64 * 1024 * 1024
MAX_TOTAL_BYTES = 
256 * 1024 * 1024

Instance Method Summary collapse

Constructor Details

#initialize(max_depth: MAX_DEPTH, max_items: MAX_ITEMS, max_scalar_bytes: MAX_SCALAR_BYTES, max_total_bytes: MAX_TOTAL_BYTES) ⇒ CanonicalDigest

Returns a new instance of CanonicalDigest.



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# File 'lib/necropsy/definition_identity/canonical_digest.rb', line 19

def initialize(max_depth: MAX_DEPTH, max_items: MAX_ITEMS, max_scalar_bytes: MAX_SCALAR_BYTES,
               max_total_bytes: MAX_TOTAL_BYTES)
  @max_depth = positive_limit(max_depth, :max_depth)
  @max_items = positive_limit(max_items, :max_items)
  @max_scalar_bytes = positive_limit(max_scalar_bytes, :max_scalar_bytes)
  @max_total_bytes = positive_limit(max_total_bytes, :max_total_bytes)
end

Instance Method Details

#hexdigest(value) ⇒ Object 



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# File 'lib/necropsy/definition_identity/canonical_digest.rb', line 27

def hexdigest(value)
  reset_state
  output = DigestOutput.new(byte_budget)
  process([[:value, value, 0, output]])
  output.hexdigest
end

#hexdigest_payload(values) ⇒ Object 



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# File 'lib/necropsy/definition_identity/canonical_digest.rb', line 34

def hexdigest_payload(values)
  reset_state
  output = DigestOutput.new(byte_budget)
  output.write('[')
  values.each_with_index do |value, index|
    count_item!
    output.write(',') if index.positive?
    output.write(payload_scalar(value))
  end
  output.write(']')
  output.hexdigest
end