Storm avro deserialization

[pradeep s]

Hi,
I am receiving avro messages from Kafka spout in below schema .

{
    "type": "record",
    "name": "generic_wrapper",
    "namespace": "oracle.goldengate",
    "fields": [{
        "name": "table_name",
        "type": "string"
    }, {
        "name": "schema_fingerprint",
        "type": "long"
    }, {
        "name": "*payload*",
        "type": "*bytes*"
    }]
}

This is deserialized using Kafk Spout in Storm 1.0.0 using below config in
topology
*Builder<String, MdpData> builder = new KafkaSpoutConfig.Builder<String,
MdpData>(kafkaBootstrapServers,*
*                StringDeserializer.class, AvroDeserializer.class,
topicName);*

*        KafkaSpoutConfig<String, MdpData> spoutConfig =*
*
builder.setGroupId(kafkaGroupId).setProp(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG,
"false")*
*
.setFirstPollOffsetStrategy(FirstPollOffsetStrategy.UNCOMMITTED_EARLIEST).build();*
*        KafkaSpout<String, MdpData> kafkaSpout = new KafkaSpout<String,
MdpData>(spoutConfig);*

There is another schema associated to payload field in the above schema and
i need to do one deserialization to retrieve the payload bytes to a java
POJO.
Can i use java deserialization in the bolt to acheive this . There is only
one bolt.
In docs , its mentioned java deserialization is not good in terms of
performance .
Whats the other option to deserialize tje payload bytes .

Regards
Pradeep S