| /** |
| * 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.impl.schema; |
| |
| import io.netty.buffer.ByteBuf; |
| import org.apache.pulsar.client.api.SchemaSerializationException; |
| import org.apache.pulsar.common.schema.SchemaInfo; |
| import org.apache.pulsar.common.schema.SchemaType; |
| |
| /** |
| * A schema for 'Byte'. |
| */ |
| public class ByteSchema extends AbstractSchema<Byte> { |
| |
| private static final ByteSchema INSTANCE; |
| private static final SchemaInfo SCHEMA_INFO; |
| |
| static { |
| SCHEMA_INFO = new SchemaInfoImpl() |
| .setName("INT8") |
| .setType(SchemaType.INT8) |
| .setSchema(new byte[0]); |
| INSTANCE = new ByteSchema(); |
| } |
| |
| public static ByteSchema of() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public void validate(byte[] message) { |
| if (message.length != 1) { |
| throw new SchemaSerializationException("Size of data received by ByteSchema is not 1"); |
| } |
| } |
| |
| @Override |
| public void validate(ByteBuf message) { |
| if (message.readableBytes() != 1) { |
| throw new SchemaSerializationException("Size of data received by ByteSchema is not 1"); |
| } |
| } |
| |
| @Override |
| public byte[] encode(Byte message) { |
| if (null == message) { |
| return null; |
| } else { |
| return new byte[]{message}; |
| } |
| } |
| |
| @Override |
| public Byte decode(byte[] bytes) { |
| if (null == bytes) { |
| return null; |
| } |
| validate(bytes); |
| return bytes[0]; |
| } |
| |
| @Override |
| public Byte decode(ByteBuf byteBuf) { |
| if (null == byteBuf) { |
| return null; |
| } |
| validate(byteBuf); |
| return byteBuf.getByte(0); |
| } |
| |
| @Override |
| public SchemaInfo getSchemaInfo() { |
| return SCHEMA_INFO; |
| } |
| } |