001/* 002 * (C) Copyright 2018 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * bdelbosc 018 */ 019package org.nuxeo.lib.stream.codec; 020 021import java.io.IOException; 022 023import org.apache.avro.Schema; 024import org.apache.avro.message.RawMessageDecoder; 025import org.apache.avro.message.RawMessageEncoder; 026import org.apache.avro.reflect.ReflectData; 027 028/** 029 * Avro Binary format, there is no header, the schema must be the same for encoder and decoder. 030 * 031 * @since 10.2 032 */ 033public class AvroBinaryCodec<T> implements Codec<T> { 034 public static final String NAME = "avroBinary"; 035 036 protected final Class<T> messageClass; 037 038 protected final Schema schema; 039 040 protected final RawMessageEncoder<T> encoder; 041 042 protected final RawMessageDecoder<T> decoder; 043 044 public AvroBinaryCodec(Class<T> messageClass) { 045 this.messageClass = messageClass; 046 schema = ReflectData.get().getSchema(messageClass); 047 encoder = new RawMessageEncoder<>(ReflectData.get(), schema); 048 decoder = new RawMessageDecoder<>(ReflectData.get(), schema); 049 } 050 051 @Override 052 public String getName() { 053 return NAME; 054 } 055 056 @Override 057 public byte[] encode(T object) { 058 try { 059 return encoder.encode(object).array(); 060 } catch (IOException e) { 061 throw new IllegalArgumentException(e); 062 } 063 } 064 065 @Override 066 public T decode(byte[] data) { 067 try { 068 return decoder.decode(data, null); 069 } catch (IOException | IndexOutOfBoundsException e) { 070 throw new IllegalArgumentException(e); 071 } 072 } 073}