org.apache.hadoop.hbase.regionserver.wal

类 AbstractProtobufLogWriter

java.lang.Object

org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufLogWriter

直接已知子类:

AsyncProtobufLogWriter, ProtobufLogWriter

@InterfaceAudience.LimitedPrivate(value="Configuration")
public abstract class AbstractProtobufLogWriter
extends Object

Base class for Protobuf log writer.

字段概要

字段

限定符和类型	字段和说明
protected Codec.Encoder	cellEncoder
protected CompressionContext	compressionContext
protected WALCellCodec.ByteStringCompressor	compressor
protected org.apache.hadoop.conf.Configuration	conf
protected AtomicLong	length
protected org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALTrailer	trailer
protected int	trailerWarnSize
protected boolean	trailerWritten

构造器概要

构造器

构造器和说明
AbstractProtobufLogWriter()

方法概要

限定符和类型	方法和说明
protected org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader	buildSecureWALHeader(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader.Builder builder)
protected org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader	buildWALHeader(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader.Builder builder)
long	getLength()
protected abstract OutputStream	getOutputStreamForCellEncoder()
protected String	getWriterClassName()
void	init(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf, boolean overwritable, long blocksize)
protected void	initAfterHeader(boolean doCompress)
protected abstract void	initOutput(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, boolean overwritable, int bufferSize, short replication, long blockSize)
protected void	secureInitAfterHeader(boolean doCompress, Encryptor encryptor)
protected void	setEncryptor(Encryptor encryptor)
protected abstract long	writeMagicAndWALHeader(byte[] magic, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader header) return the file length after written.
protected void	writeWALTrailer()
protected abstract long	writeWALTrailerAndMagic(org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALTrailer trailer, byte[] magic)

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

compressionContext

protected CompressionContext compressionContext

conf

protected org.apache.hadoop.conf.Configuration conf

cellEncoder

protected Codec.Encoder cellEncoder

compressor

protected WALCellCodec.ByteStringCompressor compressor

trailerWritten

protected boolean trailerWritten

trailer

protected org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALTrailer trailer

trailerWarnSize

protected int trailerWarnSize

length

protected AtomicLong length

构造器详细资料

AbstractProtobufLogWriter

public AbstractProtobufLogWriter()

方法详细资料

buildWALHeader

protected org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader buildWALHeader(org.apache.hadoop.conf.Configuration conf,
                                                                                               org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader.Builder builder)
                                                                                        throws IOException

抛出:

IOException

buildSecureWALHeader

protected final org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader buildSecureWALHeader(org.apache.hadoop.conf.Configuration conf,
                                                                                                           org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader.Builder builder)
                                                                                                    throws IOException

抛出:

IOException

setEncryptor

protected void setEncryptor(Encryptor encryptor)

getWriterClassName

protected String getWriterClassName()

init

public void init(org.apache.hadoop.fs.FileSystem fs,
                 org.apache.hadoop.fs.Path path,
                 org.apache.hadoop.conf.Configuration conf,
                 boolean overwritable,
                 long blocksize)
          throws IOException,
                 CommonFSUtils.StreamLacksCapabilityException

抛出:

IOException

CommonFSUtils.StreamLacksCapabilityException

initAfterHeader

protected void initAfterHeader(boolean doCompress)
                        throws IOException

抛出:

IOException

secureInitAfterHeader

protected final void secureInitAfterHeader(boolean doCompress,
                                           Encryptor encryptor)
                                    throws IOException

抛出:

IOException

getLength

public long getLength()

writeWALTrailer

protected void writeWALTrailer()

initOutput

protected abstract void initOutput(org.apache.hadoop.fs.FileSystem fs,
                                   org.apache.hadoop.fs.Path path,
                                   boolean overwritable,
                                   int bufferSize,
                                   short replication,
                                   long blockSize)
                            throws IOException,
                                   CommonFSUtils.StreamLacksCapabilityException

抛出:

IOException

CommonFSUtils.StreamLacksCapabilityException

writeMagicAndWALHeader

protected abstract long writeMagicAndWALHeader(byte[] magic,
                                               org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader header)
                                        throws IOException

return the file length after written.

抛出:

IOException

writeWALTrailerAndMagic

protected abstract long writeWALTrailerAndMagic(org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALTrailer trailer,
                                                byte[] magic)
                                         throws IOException

抛出:

IOException

getOutputStreamForCellEncoder

protected abstract OutputStream getOutputStreamForCellEncoder()