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

Method Summary

Modifier and Type	Method and Description
static void	load(Iterator<ProcedureWALFile> logs, ProcedureStoreTracker tracker, org.apache.hadoop.hbase.procedure2.store.wal.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 ProcedureProtos.ProcedureWALEntry	readEntry(InputStream stream)
static ProcedureProtos.ProcedureWALHeader	readHeader(InputStream stream)
static 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, ProcedureProtos.ProcedureWALEntry.Type type, Procedure<?> proc, Procedure<?>[] subprocs)
static void	writeHeader(OutputStream stream, 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

Method Detail

load

public static void load(Iterator<ProcedureWALFile> logs,
                        ProcedureStoreTracker tracker,
                        org.apache.hadoop.hbase.procedure2.store.wal.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,
                               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 ProcedureProtos.ProcedureWALHeader readHeader(InputStream stream)
                                                     throws IOException

Throws:

IOException

readTrailer

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

Throws:

IOException

readEntry

public static ProcedureProtos.ProcedureWALEntry readEntry(InputStream stream)
                                                   throws IOException

Throws:

IOException

writeEntry

public static void writeEntry(ByteSlot slot,
                              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