org.apache.hadoop.hbase.procedure2.store.wal

Class ProcedureWALFormat

java.lang.Object

org.apache.hadoop.hbase.procedure2.store.wal.ProcedureWALFormat

@InterfaceAudience.Private
public final class ProcedureWALFormat
extends Object

Helper class that contains the WAL serialization utils.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ProcedureWALFormat.InvalidWALDataException
(package private) static interface	ProcedureWALFormat.Loader

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static long	HEADER_MAGIC
(package private) static byte	HEADER_VERSION
(package private) static byte	LOG_TYPE_COMPACTED
(package private) static byte	LOG_TYPE_MAX_VALID
(package private) static byte	LOG_TYPE_STREAM
(package private) static long	TRAILER_MAGIC
(package private) static byte	TRAILER_VERSION

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ProcedureWALFormat()

Method Summary

Modifier and Type	Method and Description
static void	load(Iterator<ProcedureWALFile> logs, ProcedureStoreTracker tracker, ProcedureWALFormat.Loader loader) Load all the procedures in these ProcedureWALFiles, and rebuild the given tracker if needed, i.e, the tracker is a partial one.
static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALEntry	readEntry(InputStream stream)
static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALHeader	readHeader(InputStream stream)
static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALTrailer	readTrailer(org.apache.hadoop.fs.FSDataInputStream stream, long startPos, long size)
static void	writeDelete(ByteSlot slot, long procId)
static void	writeDelete(ByteSlot slot, Procedure<?> proc, long[] subprocs)
static void	writeEntry(ByteSlot slot, org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALEntry.Type type, Procedure<?> proc, Procedure<?>[] subprocs)
static void	writeHeader(OutputStream stream, org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALHeader header)
static void	writeInsert(ByteSlot slot, Procedure<?> proc)
static void	writeInsert(ByteSlot slot, Procedure<?> proc, Procedure<?>[] subprocs)
static long	writeTrailer(org.apache.hadoop.fs.FSDataOutputStream stream, ProcedureStoreTracker tracker)
static void	writeUpdate(ByteSlot slot, Procedure<?> proc)

Methods inherited from class java.lang.Object

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

Field Detail

LOG_TYPE_STREAM

static final byte LOG_TYPE_STREAM

See Also:

Constant Field Values

LOG_TYPE_COMPACTED

static final byte LOG_TYPE_COMPACTED

See Also:

Constant Field Values

LOG_TYPE_MAX_VALID

static final byte LOG_TYPE_MAX_VALID

See Also:

Constant Field Values

HEADER_VERSION

static final byte HEADER_VERSION

See Also:

Constant Field Values

TRAILER_VERSION

static final byte TRAILER_VERSION

See Also:

Constant Field Values

HEADER_MAGIC

static final long HEADER_MAGIC

See Also:

Constant Field Values

TRAILER_MAGIC

static final long TRAILER_MAGIC

See Also:

Constant Field Values

Constructor Detail

ProcedureWALFormat

private ProcedureWALFormat()

Method Detail

load

public static void load(Iterator<ProcedureWALFile> logs,
                        ProcedureStoreTracker tracker,
                        ProcedureWALFormat.Loader loader)
                 throws IOException

Load all the procedures in these ProcedureWALFiles, and rebuild the given tracker if needed, i.e, the tracker is a partial one.

The method in the give loader will be called at the end after we load all the procedures and construct the hierarchy.

And we will call the ProcedureStoreTracker.resetModified() method for the given tracker before returning, as it will be used to track the next proc wal file's modified procedures.

Throws:

IOException

writeHeader

public static void writeHeader(OutputStream stream,
                               org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALHeader header)
                        throws IOException

Throws:

IOException

writeTrailer

public static long writeTrailer(org.apache.hadoop.fs.FSDataOutputStream stream,
                                ProcedureStoreTracker tracker)
                         throws IOException

Throws:

IOException

readHeader

public static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALHeader readHeader(InputStream stream)
                                                                                                       throws IOException

Throws:

IOException

readTrailer

public static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALTrailer readTrailer(org.apache.hadoop.fs.FSDataInputStream stream,
                                                                                                                long startPos,
                                                                                                                long size)
                                                                                                         throws IOException

Throws:

IOException

readEntry

public static org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALEntry readEntry(InputStream stream)
                                                                                                     throws IOException

Throws:

IOException

writeEntry

public static void writeEntry(ByteSlot slot,
                              org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureWALEntry.Type type,
                              Procedure<?> proc,
                              Procedure<?>[] subprocs)
                       throws IOException

Throws:

IOException

writeInsert

public static void writeInsert(ByteSlot slot,
                               Procedure<?> proc)
                        throws IOException

Throws:

IOException

writeInsert

public static void writeInsert(ByteSlot slot,
                               Procedure<?> proc,
                               Procedure<?>[] subprocs)
                        throws IOException

Throws:

IOException

writeUpdate

public static void writeUpdate(ByteSlot slot,
                               Procedure<?> proc)
                        throws IOException

Throws:

IOException

writeDelete

public static void writeDelete(ByteSlot slot,
                               long procId)
                        throws IOException

Throws:

IOException

writeDelete

public static void writeDelete(ByteSlot slot,
                               Procedure<?> proc,
                               long[] subprocs)
                        throws IOException

Throws:

IOException