org.apache.storm.hdfs.avro

Class ConfluentAvroSerializer

java.lang.Object

com.esotericsoftware.kryo.Serializer<org.apache.avro.generic.GenericContainer>

org.apache.storm.hdfs.avro.AbstractAvroSerializer

org.apache.storm.hdfs.avro.ConfluentAvroSerializer

All Implemented Interfaces:

Serializable, AvroSchemaRegistry

public class ConfluentAvroSerializer
extends AbstractAvroSerializer

This class provides a mechanism to utilize the Confluent Schema Registry (https://github.com/confluentinc/schema-registry) for Storm to (de)serialize Avro generic records across a topology. It assumes the schema registry is up and running completely independent of Storm.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ConfluentAvroSerializer(com.esotericsoftware.kryo.Kryo k, Map<String,Object> topoConf) A constructor with a signature that Storm can locate and use with kryo registration.

Method Summary

Modifier and Type	Method and Description
String	getFingerprint(org.apache.avro.Schema schema)
org.apache.avro.Schema	getSchema(String fingerPrint)

Methods inherited from class org.apache.storm.hdfs.avro.AbstractAvroSerializer

read, write

Methods inherited from class com.esotericsoftware.kryo.Serializer

copy, getAcceptsNull, isImmutable, setAcceptsNull, setGenerics, setImmutable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConfluentAvroSerializer

public ConfluentAvroSerializer(com.esotericsoftware.kryo.Kryo k,
                               Map<String,Object> topoConf)

A constructor with a signature that Storm can locate and use with kryo registration. See Storm's SerializationFactory class for details

Parameters:

k - Unused but needs to be present for Serialization Factory to find this constructor

topoConf - The global storm configuration. Must define "avro.schemaregistry.confluent" to locate the confluent schema registry. Should in the form of "http://HOST:PORT"

Method Detail

getFingerprint

public String getFingerprint(org.apache.avro.Schema schema)

getSchema

public org.apache.avro.Schema getSchema(String fingerPrint)