/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 com.alibaba.jstorm.hdfs.avro;
import backtype.storm.Config;
import org.apache.avro.generic.GenericData;
public class AvroUtils {
/**
* A helper method to extract avro serialization configurations from the topology configuration and register
* specific kryo serializers as necessary. A default serializer will be provided if none is specified in the
* configuration. "avro.serializer" should specify the complete class name of the serializer, e.g.
* "org.apache.stgorm.hdfs.avro.GenericAvroSerializer"
*
* @param conf The topology configuration
* @throws ClassNotFoundException If the specified serializer cannot be located.
*/
public static void addAvroKryoSerializations(Config conf) throws ClassNotFoundException {
final Class serializerClass;
if (conf.containsKey("avro.serializer")) {
serializerClass = Class.forName((String)conf.get("avro.serializer"));
}
else {
serializerClass = GenericAvroSerializer.class;
}
conf.registerSerialization(GenericData.Record.class, serializerClass);
conf.setSkipMissingKryoRegistrations(false);
}
}