Class: RubyEventStore::Mappers::Transformation::Encryption

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_event_store/mappers/transformation/encryption.rb

Defined Under Namespace

Classes: MissingEncryptionKey

Instance Method Summary collapse

Constructor Details

#initialize(key_repository, serializer: YAML, forgotten_data: ForgottenData.new) ⇒ Encryption

Returns a new instance of Encryption.



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# File 'lib/ruby_event_store/mappers/transformation/encryption.rb', line 20

def initialize(key_repository, serializer: YAML, forgotten_data: ForgottenData.new)
  @key_repository = key_repository
  @serializer = serializer
  @forgotten_data = forgotten_data
end

Instance Method Details

#dump(record) ⇒ Object 



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# File 'lib/ruby_event_store/mappers/transformation/encryption.rb', line 26

def dump(record)
  data        = record.data
  metadata    = record.metadata.dup
  event_class = Object.const_get(record.event_type)

  crypto_description    = encryption_metadata(data, encryption_schema(event_class))
  metadata[:encryption] = crypto_description unless crypto_description.empty?

  Record.new(
    event_id:   record.event_id,
    event_type: record.event_type,
    data:       encrypt_data(deep_dup(data), crypto_description),
    metadata:   metadata,
    timestamp:  record.timestamp,
    valid_at:   record.valid_at,
  )
end

#load(record) ⇒ Object 



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# File 'lib/ruby_event_store/mappers/transformation/encryption.rb', line 44

def load(record)
  metadata = record.metadata.dup
  crypto_description = Hash(metadata.delete(:encryption))

  Record.new(
    event_id:   record.event_id,
    event_type: record.event_type,
    data:       decrypt_data(record.data, crypto_description),
    metadata:   metadata,
    timestamp:  record.timestamp,
    valid_at:   record.valid_at,
  )
end