io.netty.handler.codec.memcache.binary.AbstractBinaryMemcacheMessage Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including
all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and
Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright 2013 The Netty Project
*
* The Netty Project 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 io.netty.handler.codec.memcache.binary;
import io.netty.buffer.ByteBuf;
import io.netty.handler.codec.memcache.AbstractMemcacheObject;
import io.netty.util.internal.UnstableApi;
/**
* Default implementation of a {@link BinaryMemcacheMessage}.
*/
@UnstableApi
public abstract class AbstractBinaryMemcacheMessage
extends AbstractMemcacheObject
implements BinaryMemcacheMessage {
/**
* Contains the optional key.
*/
private ByteBuf key;
/**
* Contains the optional extras.
*/
private ByteBuf extras;
private byte magic;
private byte opcode;
private short keyLength;
private byte extrasLength;
private byte dataType;
private int totalBodyLength;
private int opaque;
private long cas;
/**
* Create a new instance with all properties set.
*
* @param key the message key.
* @param extras the message extras.
*/
protected AbstractBinaryMemcacheMessage(ByteBuf key, ByteBuf extras) {
this.key = key;
keyLength = key == null ? 0 : (short) key.readableBytes();
this.extras = extras;
extrasLength = extras == null ? 0 : (byte) extras.readableBytes();
totalBodyLength = keyLength + extrasLength;
}
@Override
public ByteBuf key() {
return key;
}
@Override
public ByteBuf extras() {
return extras;
}
@Override
public BinaryMemcacheMessage setKey(ByteBuf key) {
if (this.key != null) {
this.key.release();
}
this.key = key;
short oldKeyLength = keyLength;
keyLength = key == null ? 0 : (short) key.readableBytes();
totalBodyLength = totalBodyLength + keyLength - oldKeyLength;
return this;
}
@Override
public BinaryMemcacheMessage setExtras(ByteBuf extras) {
if (this.extras != null) {
this.extras.release();
}
this.extras = extras;
short oldExtrasLength = extrasLength;
extrasLength = extras == null ? 0 : (byte) extras.readableBytes();
totalBodyLength = totalBodyLength + extrasLength - oldExtrasLength;
return this;
}
@Override
public byte magic() {
return magic;
}
@Override
public BinaryMemcacheMessage setMagic(byte magic) {
this.magic = magic;
return this;
}
@Override
public long cas() {
return cas;
}
@Override
public BinaryMemcacheMessage setCas(long cas) {
this.cas = cas;
return this;
}
@Override
public int opaque() {
return opaque;
}
@Override
public BinaryMemcacheMessage setOpaque(int opaque) {
this.opaque = opaque;
return this;
}
@Override
public int totalBodyLength() {
return totalBodyLength;
}
@Override
public BinaryMemcacheMessage setTotalBodyLength(int totalBodyLength) {
this.totalBodyLength = totalBodyLength;
return this;
}
@Override
public byte dataType() {
return dataType;
}
@Override
public BinaryMemcacheMessage setDataType(byte dataType) {
this.dataType = dataType;
return this;
}
@Override
public byte extrasLength() {
return extrasLength;
}
/**
* Set the extras length of the message.
*
* This may be 0, since the extras content is optional.
*
* @param extrasLength the extras length.
*/
BinaryMemcacheMessage setExtrasLength(byte extrasLength) {
this.extrasLength = extrasLength;
return this;
}
@Override
public short keyLength() {
return keyLength;
}
/**
* Set the key length of the message.
*
* This may be 0, since the key is optional.
*
* @param keyLength the key length to use.
*/
BinaryMemcacheMessage setKeyLength(short keyLength) {
this.keyLength = keyLength;
return this;
}
@Override
public byte opcode() {
return opcode;
}
@Override
public BinaryMemcacheMessage setOpcode(byte opcode) {
this.opcode = opcode;
return this;
}
@Override
public BinaryMemcacheMessage retain() {
super.retain();
return this;
}
@Override
public BinaryMemcacheMessage retain(int increment) {
super.retain(increment);
return this;
}
@Override
protected void deallocate() {
if (key != null) {
key.release();
}
if (extras != null) {
extras.release();
}
}
@Override
public BinaryMemcacheMessage touch() {
super.touch();
return this;
}
@Override
public BinaryMemcacheMessage touch(Object hint) {
if (key != null) {
key.touch(hint);
}
if (extras != null) {
extras.touch(hint);
}
return this;
}
/**
* Copies special metadata hold by this instance to the provided instance
*
* @param dst The instance where to copy the metadata of this instance to
*/
void copyMeta(AbstractBinaryMemcacheMessage dst) {
dst.magic = magic;
dst.opcode = opcode;
dst.keyLength = keyLength;
dst.extrasLength = extrasLength;
dst.dataType = dataType;
dst.totalBodyLength = totalBodyLength;
dst.opaque = opaque;
dst.cas = cas;
}
}
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