/*
* Copyright 2017 Confluent Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.confluent.kafka.streams.serdes.avro;
import org.apache.avro.generic.GenericRecord;
import org.apache.kafka.common.annotation.InterfaceStability;
import org.apache.kafka.common.serialization.Deserializer;
import java.util.Map;
import io.confluent.kafka.schemaregistry.client.SchemaRegistryClient;
import io.confluent.kafka.serializers.KafkaAvroDeserializer;
/**
* A schema-registry aware deserializer for reading data in "generic Avro" format.
*
* <p>This deserializer assumes that the serialized data was written in the wire format defined at
* http://docs.confluent.io/current/schema-registry/docs/serializer-formatter.html#wire-format.
* It requires access to a Confluent Schema Registry endpoint, which you must
* {@link GenericAvroDeserializer#configure(Map, boolean)} via the parameter
* "schema.registry.url".</p>
*
* <p>See {@link GenericAvroSerializer} for its serializer counterpart.</p>
*/
@InterfaceStability.Unstable
public class GenericAvroDeserializer implements Deserializer<GenericRecord> {
private final KafkaAvroDeserializer inner;
public GenericAvroDeserializer() {
inner = new KafkaAvroDeserializer();
}
/**
* For testing purposes only.
*/
GenericAvroDeserializer(final SchemaRegistryClient client) {
inner = new KafkaAvroDeserializer(client);
}
@Override
public void configure(final Map<String, ?> deserializerConfig,
final boolean isDeserializerForRecordKeys) {
inner.configure(deserializerConfig, isDeserializerForRecordKeys);
}
@Override
public GenericRecord deserialize(final String topic, final byte[] bytes) {
return (GenericRecord) inner.deserialize(topic, bytes);
}
@Override
public void close() {
inner.close();
}
}