Class: Unity::DynamoDBStreams::EventParser

Inherits:
Object
  • Object
show all
Defined in:
lib/unity/dynamodbstreams/event_parser.rb,
lib/unity/dynamodbstreams/event_parser/version.rb

Defined Under Namespace

Classes: EventStruct, StreamRecordStruct

Constant Summary collapse

VERSION = 
'1.0.0'

Instance Method Summary collapse

Constructor Details

#initialize ⇒ EventParser

Returns a new instance of EventParser.



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# File 'lib/unity/dynamodbstreams/event_parser.rb', line 24

def initialize
  @deserializer = Unity::DynamoDB::AttributeDeserializer.new
end

Instance Method Details

#call(hash) ⇒ Object 



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# File 'lib/unity/dynamodbstreams/event_parser.rb', line 28

def call(hash)
  EventStruct.new(
    hash['eventID'],
    hash['eventName'],
    hash['eventVersion'],
    hash['eventSource'],
    hash['eventSourceARN'],
    hash['awsRegion'],
    StreamRecordStruct.new(
      hash['dynamodb']['ApproximateCreationDateTime'],
      @deserializer.call(hash['dynamodb']['Keys']),
      @deserializer.call(hash['dynamodb']['NewImage']),
      @deserializer.call(hash['dynamodb']['OldImage']),
      hash['dynamodb']['SequenceNumber'],
      hash['dynamodb']['SizeBytes'],
      hash['dynamodb']['StreamViewType']
    ),
    hash['userIdentity']
  )
end