samoa-api/src/main/java/org/apache/samoa/streams/kafka/KafkaDeserializer.java

/*
 * 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 org.apache.samoa.streams.kafka;

import org.apache.samoa.core.ContentEvent;

/**
 *
 * @author pwawrzyniak
 * @param <T> the class that would be deserialized
 */
public interface KafkaDeserializer<T extends ContentEvent> {
    
    // TODO: Consider key-value schema?
    /**
     * Method that provides deserialization algorithm
     * @param message Message as received from Apache Kafka
     * @return Deserialized form of message, to be passed to topology
     */
    T deserialize(byte[] message);
}