org.joyqueue.broker.kafka.message.serializer

类 AbstractKafkaMessageSerializer

java.lang.Object

org.joyqueue.broker.kafka.message.serializer.AbstractKafkaMessageSerializer

直接已知子类:

KafkaMessageSerializer, KafkaMessageV0Serializer, KafkaMessageV1Serializer, KafkaMessageV2Serializer

public abstract class AbstractKafkaMessageSerializer
extends Object

AbstractKafkaMessageSerializer author: gaohaoxiang date: 2018/11/11

字段概要

字段

限定符和类型	字段和说明
static int	ATTRIBUTE_OFFSET
static byte	COMPRESSION_CODEC_MASK
static byte	CONTROL_FLAG_MASK
static int	CRC_OFFSET
protected static int	DECOMPRESS_BUFFER_SIZE
static int	EXTENSION_ATTRIBUTE_OFFSET
static int	EXTENSION_MAGIC_OFFSET
static int	EXTENSION_TIMESTAMP_OFFSET
static byte	INVALID_EXTENSION_MAGIC
static int	MAGIC_OFFSET
static byte	MESSAGE_CURRENT_MAGIC
static byte	MESSAGE_MAGIC_V0
static byte	MESSAGE_MAGIC_V1
static byte	MESSAGE_MAGIC_V2
static int	OFFSET_OFFSET
static int	SIZE_OFFSET
static byte	TIMESTAMP_TYPE_MASK
static byte	TRANSACTIONAL_FLAG_MASK

构造器概要

构造器

构造器和说明
AbstractKafkaMessageSerializer()

方法概要

限定符和类型	方法和说明
static byte[]	decompress(KafkaCompressionCodec compressionCodec, ByteBuffer buffer, byte messageMagic)
static ByteBuffer	decompressBuffer(KafkaCompressionCodec compressionCodec, ByteBuffer buffer, byte messageMagic)
static int	getCompressionCodecType(short attribute)
static byte	getExtensionMagic(byte[] extension)
static int	getTimestampType(short attribute)
static boolean	isTransactionl(short attribute)
static short	readExtensionAttribute(byte[] extension)
static byte	readExtensionMagic(byte[] extension)
static long	readExtensionTimestamp(byte[] extension)
static void	writeExtensionAttribute(byte[] extension, short attribute)
static void	writeExtensionMagic(byte[] extension, byte magic)
static void	writeExtensionTimestamp(byte[] extension, long timestamp)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

MESSAGE_MAGIC_V0

public static final byte MESSAGE_MAGIC_V0

另请参阅:

常量字段值

MESSAGE_MAGIC_V1

public static final byte MESSAGE_MAGIC_V1

另请参阅:

常量字段值

MESSAGE_MAGIC_V2

public static final byte MESSAGE_MAGIC_V2

另请参阅:

常量字段值

MESSAGE_CURRENT_MAGIC

public static final byte MESSAGE_CURRENT_MAGIC

另请参阅:

常量字段值

INVALID_EXTENSION_MAGIC

public static final byte INVALID_EXTENSION_MAGIC

另请参阅:

常量字段值

EXTENSION_MAGIC_OFFSET

public static final int EXTENSION_MAGIC_OFFSET

另请参阅:

常量字段值

EXTENSION_TIMESTAMP_OFFSET

public static final int EXTENSION_TIMESTAMP_OFFSET

另请参阅:

常量字段值

EXTENSION_ATTRIBUTE_OFFSET

public static final int EXTENSION_ATTRIBUTE_OFFSET

另请参阅:

常量字段值

OFFSET_OFFSET

public static final int OFFSET_OFFSET

另请参阅:

常量字段值

SIZE_OFFSET

public static final int SIZE_OFFSET

另请参阅:

常量字段值

CRC_OFFSET

public static final int CRC_OFFSET

另请参阅:

常量字段值

MAGIC_OFFSET

public static final int MAGIC_OFFSET

另请参阅:

常量字段值

ATTRIBUTE_OFFSET

public static final int ATTRIBUTE_OFFSET

另请参阅:

常量字段值

COMPRESSION_CODEC_MASK

public static final byte COMPRESSION_CODEC_MASK

另请参阅:

常量字段值

TRANSACTIONAL_FLAG_MASK

public static final byte TRANSACTIONAL_FLAG_MASK

另请参阅:

常量字段值

CONTROL_FLAG_MASK

public static final byte CONTROL_FLAG_MASK

另请参阅:

常量字段值

TIMESTAMP_TYPE_MASK

public static final byte TIMESTAMP_TYPE_MASK

另请参阅:

常量字段值

DECOMPRESS_BUFFER_SIZE

protected static final int DECOMPRESS_BUFFER_SIZE

另请参阅:

常量字段值

构造器详细资料

AbstractKafkaMessageSerializer

public AbstractKafkaMessageSerializer()

方法详细资料

getExtensionMagic

public static byte getExtensionMagic(byte[] extension)

writeExtensionMagic

public static void writeExtensionMagic(byte[] extension,
                                       byte magic)

writeExtensionTimestamp

public static void writeExtensionTimestamp(byte[] extension,
                                           long timestamp)

writeExtensionAttribute

public static void writeExtensionAttribute(byte[] extension,
                                           short attribute)

readExtensionMagic

public static byte readExtensionMagic(byte[] extension)

readExtensionTimestamp

public static long readExtensionTimestamp(byte[] extension)

readExtensionAttribute

public static short readExtensionAttribute(byte[] extension)

getCompressionCodecType

public static int getCompressionCodecType(short attribute)

isTransactionl

public static boolean isTransactionl(short attribute)

getTimestampType

public static int getTimestampType(short attribute)

decompress

public static byte[] decompress(KafkaCompressionCodec compressionCodec,
                                ByteBuffer buffer,
                                byte messageMagic)
                         throws Exception

抛出:

Exception

decompressBuffer

public static ByteBuffer decompressBuffer(KafkaCompressionCodec compressionCodec,
                                          ByteBuffer buffer,
                                          byte messageMagic)
                                   throws Exception

抛出:

Exception