org.apache.pulsar.client.impl.schema.ByteBufSchema Maven / Gradle / Ivy
/*
* 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 org.apache.pulsar.shade.io.netty.buffer.ByteBuf;
import org.apache.pulsar.shade.io.netty.buffer.ByteBufUtil;
import org.apache.pulsar.shade.io.netty.buffer.Unpooled;
import org.apache.pulsar.common.schema.SchemaInfo;
import org.apache.pulsar.common.schema.SchemaType;
/**
* A variant `Bytes` schema that takes {@link org.apache.pulsar.shade.io.netty.buffer.ByteBuf}.
*/
public class ByteBufSchema extends AbstractSchema {
private static final ByteBufSchema INSTANCE;
private static final SchemaInfo SCHEMA_INFO;
static {
SCHEMA_INFO = SchemaInfoImpl.builder()
.name("ByteBuf")
.type(SchemaType.BYTES)
.schema(new byte[0]).build();
INSTANCE = new ByteBufSchema();
}
public static ByteBufSchema of() {
return INSTANCE;
}
@Override
public byte[] encode(ByteBuf message) {
if (message == null) {
return null;
}
return ByteBufUtil.getBytes(message);
}
@Override
public ByteBuf decode(byte[] bytes) {
if (null == bytes) {
return null;
} else {
return Unpooled.wrappedBuffer(bytes);
}
}
@Override
public ByteBuf decode(ByteBuf byteBuf) {
return byteBuf;
}
@Override
public SchemaInfo getSchemaInfo() {
return SCHEMA_INFO;
}
}