| /** |
| * 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 `Short`. |
| */ |
| public class ShortSchema extends AbstractSchema<Short> { |
| |
| private static final ShortSchema INSTANCE; |
| private static final SchemaInfo SCHEMA_INFO; |
| |
| static { |
| SCHEMA_INFO = SchemaInfoImpl.builder() |
| .name("INT16") |
| .type(SchemaType.INT16) |
| .schema(new byte[0]).build(); |
| INSTANCE = new ShortSchema(); |
| } |
| |
| public static ShortSchema of() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public void validate(byte[] message) { |
| if (message.length != 2) { |
| throw new SchemaSerializationException("Size of data received by ShortSchema is not 2"); |
| } |
| } |
| |
| @Override |
| public void validate(ByteBuf message) { |
| if (message.readableBytes() != 2) { |
| throw new SchemaSerializationException("Size of data received by ShortSchema is not 2"); |
| } |
| } |
| |
| @Override |
| public byte[] encode(Short message) { |
| if (null == message) { |
| return null; |
| } else { |
| return new byte[] { |
| (byte) (message >>> 8), |
| message.byteValue() |
| }; |
| } |
| } |
| |
| @Override |
| public Short decode(byte[] bytes) { |
| if (null == bytes) { |
| return null; |
| } |
| validate(bytes); |
| short value = 0; |
| for (byte b : bytes) { |
| value <<= 8; |
| value |= b & 0xFF; |
| } |
| return value; |
| } |
| |
| @Override |
| public Short decode(ByteBuf byteBuf) { |
| if (null == byteBuf) { |
| return null; |
| } |
| validate(byteBuf); |
| short value = 0; |
| |
| for (int i = 0; i < 2; i++) { |
| value <<= 8; |
| value |= byteBuf.getByte(i) & 0xFF; |
| } |
| return value; |
| } |
| |
| @Override |
| public SchemaInfo getSchemaInfo() { |
| return SCHEMA_INFO; |
| } |
| } |