| /** |
| * 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 java.nio.ByteBuffer; |
| |
| import org.apache.pulsar.common.schema.SchemaInfo; |
| import org.apache.pulsar.common.schema.SchemaType; |
| |
| /** |
| * A bytebuffer schema is effectively a `BYTES` schema. |
| */ |
| public class ByteBufferSchema extends AbstractSchema<ByteBuffer> { |
| |
| private static final ByteBufferSchema INSTANCE; |
| private static final SchemaInfo SCHEMA_INFO; |
| |
| static { |
| SCHEMA_INFO = new SchemaInfoImpl() |
| .setName("ByteBuffer") |
| .setType(SchemaType.BYTES) |
| .setSchema(new byte[0]); |
| INSTANCE = new ByteBufferSchema(); |
| } |
| |
| public static ByteBufferSchema of() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public byte[] encode(ByteBuffer data) { |
| if (data == null) { |
| return null; |
| } |
| |
| data.rewind(); |
| |
| if (data.hasArray()) { |
| byte[] arr = data.array(); |
| if (data.arrayOffset() == 0 && arr.length == data.remaining()) { |
| return arr; |
| } |
| } |
| |
| byte[] ret = new byte[data.remaining()]; |
| data.get(ret, 0, ret.length); |
| data.rewind(); |
| return ret; |
| } |
| |
| @Override |
| public ByteBuffer decode(byte[] data) { |
| if (null == data) { |
| return null; |
| } else { |
| return ByteBuffer.wrap(data); |
| } |
| } |
| |
| @Override |
| public ByteBuffer decode(ByteBuf byteBuffer) { |
| if (null == byteBuffer) { |
| return null; |
| } else { |
| int size = byteBuffer.readableBytes(); |
| byte[] bytes = new byte[size]; |
| byteBuffer.readBytes(bytes); |
| return ByteBuffer.wrap(bytes); |
| } |
| } |
| |
| @Override |
| public ByteBuffer decode(ByteBuffer byteBuffer, byte[] schemaVersion) { |
| return byteBuffer; |
| } |
| |
| @Override |
| public SchemaInfo getSchemaInfo() { |
| return SCHEMA_INFO; |
| } |
| } |