org.apache.pulsar.client.impl.MessagePayloadImpl 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;
import org.apache.pulsar.shade.io.netty.buffer.ByteBuf;
import org.apache.pulsar.shade.io.netty.util.Recycler;
import org.apache.pulsar.shade.io.netty.util.ReferenceCountUtil;
import lombok.Getter;
import lombok.NonNull;
import org.apache.pulsar.client.api.MessagePayload;
/**
* A wrapper of {@link ByteBuf} that implements {@link MessagePayload}.
*/
public class MessagePayloadImpl implements MessagePayload {
private static final Recycler RECYCLER = new Recycler() {
@Override
protected MessagePayloadImpl newObject(Handle handle) {
return new MessagePayloadImpl(handle);
}
};
private final Recycler.Handle recyclerHandle;
@Getter
private ByteBuf byteBuf;
public static MessagePayloadImpl create(@NonNull final ByteBuf byteBuf) {
final MessagePayloadImpl payload = RECYCLER.get();
payload.byteBuf = byteBuf;
return payload;
}
private MessagePayloadImpl(final Recycler.Handle handle) {
this.recyclerHandle = handle;
}
@Override
public void release() {
ReferenceCountUtil.release(byteBuf);
byteBuf = null;
recyclerHandle.recycle(this);
}
@Override
public byte[] copiedBuffer() {
final int readable = byteBuf.readableBytes();
if (readable > 0) {
final byte[] bytes = new byte[readable];
byteBuf.getBytes(byteBuf.readerIndex(), bytes);
return bytes;
} else {
return new byte[0];
}
}
}