com.microsoft.azure.schemaregistry.kafka.avro

Class KafkaAvroDeserializer<T extends org.apache.avro.generic.IndexedRecord>

java.lang.Object

com.microsoft.azure.schemaregistry.kafka.avro.KafkaAvroDeserializer<T>

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.kafka.common.serialization.Deserializer<T>

public class KafkaAvroDeserializer<T extends org.apache.avro.generic.IndexedRecord>
extends Object
implements org.apache.kafka.common.serialization.Deserializer<T>

Deserializer implementation for Kafka consumer, implementing Kafka Deserializer interface. Byte arrays are converted into Java objects by using the schema referenced by GUID prefix to deserialize the payload. Receiving Avro GenericRecords and SpecificRecords is supported. Avro reflection capabilities have been disabled on com.azure.schemaregistry.kafka.KafkaAvroSerializer.

See Also:

See serializer class for upstream serializer implementation

Constructor Summary

Constructors

Constructor and Description
KafkaAvroDeserializer() Empty constructor used by Kafka consumer

Method Summary

Modifier and Type	Method and Description
void	close()
void	configure(Map<String,?> props, boolean isKey) Configures deserializer instance.
T	deserialize(String topic, byte[] bytes) Deserializes byte array into Java object
T	deserialize(String topic, org.apache.kafka.common.header.Headers headers, byte[] bytes) Deserializes byte array into Java object

Methods inherited from class java.lang.Object

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

Constructor Detail

KafkaAvroDeserializer

public KafkaAvroDeserializer()

Empty constructor used by Kafka consumer

Method Detail

configure

public void configure(Map<String,?> props,
                      boolean isKey)

Configures deserializer instance.

Specified by:

configure in interface org.apache.kafka.common.serialization.Deserializer<T extends org.apache.avro.generic.IndexedRecord>

Parameters:

props - Map of properties used to configure instance

isKey - Indicates if deserializing record key or value. Required by Kafka deserializer interface, no specific functionality has been implemented for key use.

See Also:

Deserializer will use configs found in here and inherited classes.

deserialize

public T deserialize(String topic,
                     byte[] bytes)

Deserializes byte array into Java object

Specified by:

deserialize in interface org.apache.kafka.common.serialization.Deserializer<T extends org.apache.avro.generic.IndexedRecord>

Parameters:

topic - topic associated with the record bytes

bytes - serialized bytes, may be null

Returns:

deserialize object, may be null

deserialize

public T deserialize(String topic,
                     org.apache.kafka.common.header.Headers headers,
                     byte[] bytes)

Deserializes byte array into Java object

Specified by:

deserialize in interface org.apache.kafka.common.serialization.Deserializer<T extends org.apache.avro.generic.IndexedRecord>

Parameters:

topic - topic associated with the record bytes

bytes - serialized bytes, may be null

headers - record headers, may be null

Returns:

deserialize object, may be null

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface org.apache.kafka.common.serialization.Deserializer<T extends org.apache.avro.generic.IndexedRecord>