| /** |
| * 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.pulsar.client.kafka.compat; |
| |
| import org.apache.kafka.common.serialization.Deserializer; |
| import org.apache.kafka.common.serialization.Serializer; |
| import org.apache.pulsar.client.api.Schema; |
| import org.apache.pulsar.common.schema.SchemaInfo; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| public class PulsarKafkaSchema<T> implements Schema<T> { |
| |
| private final Serializer<T> kafkaSerializer; |
| |
| private final Deserializer<T> kafkaDeserializer; |
| |
| private String topic; |
| |
| public PulsarKafkaSchema(Serializer<T> serializer) { |
| this(serializer, null); |
| } |
| |
| public PulsarKafkaSchema(Deserializer<T> deserializer) { |
| this(null, deserializer); |
| } |
| |
| public PulsarKafkaSchema(Serializer<T> serializer, Deserializer<T> deserializer) { |
| this.kafkaSerializer = serializer; |
| this.kafkaDeserializer = deserializer; |
| } |
| |
| public Serializer<T> getKafkaSerializer() { |
| return kafkaSerializer; |
| } |
| |
| public Deserializer<T> getKafkaDeserializer() { |
| return kafkaDeserializer; |
| } |
| |
| public void setTopic(String topic) { |
| this.topic = topic; |
| } |
| |
| @Override |
| public byte[] encode(T message) { |
| checkArgument(kafkaSerializer != null, "Kafka serializer is not initialized yet"); |
| return kafkaSerializer.serialize(this.topic, message); |
| } |
| |
| @Override |
| public T decode(byte[] message) { |
| checkArgument(kafkaDeserializer != null, "Kafka deserializer is not initialized yet"); |
| return kafkaDeserializer.deserialize(this.topic, message); |
| } |
| |
| @Override |
| public SchemaInfo getSchemaInfo() { |
| return Schema.BYTES.getSchemaInfo(); |
| } |
| |
| @Override |
| public Schema<T> clone() { |
| return this; |
| } |
| } |