Class: Aws::DynamoDBStreams::EventParser

Inherits:
Object
  • Object
show all
Defined in:
lib/aws/dynamodbstreams/event_parser.rb

Defined Under Namespace

Classes: EventStruct, StreamRecordStruct

Instance Method Summary collapse

Constructor Details

#initialize ⇒ EventParser

Returns a new instance of EventParser.



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# File 'lib/aws/dynamodbstreams/event_parser.rb', line 23

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

Instance Method Details

#from(hash) ⇒ Object 



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# File 'lib/aws/dynamodbstreams/event_parser.rb', line 27

def from(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

#parse(json) ⇒ Object 



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# File 'lib/aws/dynamodbstreams/event_parser.rb', line 48

def parse(json)
  data = JSON.parse(json)
  from(data)
end