Package net.minecraft.world.level.chunk.storage

Class RegionFile

java.lang.Object

net.minecraft.world.level.chunk.storage.RegionFile

All Implemented Interfaces:

AutoCloseable

public class RegionFile
extends Object
implements AutoCloseable

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	RegionFile.ChunkBuffer
(package private) static interface	RegionFile.CommitOp

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	CHUNK_HEADER_SIZE
private static final int	CHUNK_NOT_PRESENT
private static final int	EXTERNAL_CHUNK_THRESHOLD
private static final String	EXTERNAL_FILE_EXTENSION
private static final int	EXTERNAL_STREAM_FLAG
private final Path	externalFileDir
private final FileChannel	file
private final ByteBuffer	header
private static final int	HEADER_OFFSET
private static final org.slf4j.Logger	LOGGER
private final IntBuffer	offsets
private static final ByteBuffer	PADDING_BUFFER
private static final int	SECTOR_BYTES
protected static final int	SECTOR_INTS
private final IntBuffer	timestamps
protected final RegionBitmap	usedSectors
(package private) final RegionFileVersion	version

Constructor Summary

Constructors

Constructor	Description
RegionFile(Path p_196950_, Path p_196951_, boolean p_196952_)
RegionFile(Path p_63633_, Path p_63634_, RegionFileVersion p_63635_, boolean p_63636_)

Method Summary

Modifier and Type	Method	Description
void	clear(ChunkPos p_156614_)
void	close()
private DataInputStream	createChunkInputStream(ChunkPos p_63651_, byte p_63652_, InputStream p_63653_)
private DataInputStream	createExternalChunkInputStream(ChunkPos p_63648_, byte p_63649_)
private ByteBuffer	createExternalStub()
private static ByteArrayInputStream	createStream(ByteBuffer p_63660_, int p_63661_)
boolean	doesChunkExist(ChunkPos p_63674_)
void	flush()
DataInputStream	getChunkDataInputStream(ChunkPos p_63646_)
DataOutputStream	getChunkDataOutputStream(ChunkPos p_63679_)
private Path	getExternalChunkPath(ChunkPos p_63685_)
private static byte	getExternalChunkVersion(byte p_63670_)
private static int	getNumSectors(int p_63641_)
private int	getOffset(ChunkPos p_63687_)
private static int	getOffsetIndex(ChunkPos p_63689_)
private static int	getSectorNumber(int p_63672_)
private static int	getTimestamp()
boolean	hasChunk(ChunkPos p_63683_)
private static boolean	isExternalStreamChunk(byte p_63639_)
private int	packSectorOffset(int p_63643_, int p_63644_)
private void	padToFullSector()
private static int	sizeToSectors(int p_63677_)
protected void	write(ChunkPos p_63655_, ByteBuffer p_63656_)
private void	writeHeader()
private RegionFile.CommitOp	writeToExternalFile(Path p_63663_, ByteBuffer p_63664_)

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

SECTOR_BYTES

private static final int SECTOR_BYTES

See Also:

• Constant Field Values

SECTOR_INTS

protected static final int SECTOR_INTS

See Also:

• Constant Field Values

CHUNK_HEADER_SIZE

private static final int CHUNK_HEADER_SIZE

See Also:

• Constant Field Values

HEADER_OFFSET

private static final int HEADER_OFFSET

See Also:

• Constant Field Values

PADDING_BUFFER

private static final ByteBuffer PADDING_BUFFER

EXTERNAL_FILE_EXTENSION

private static final String EXTERNAL_FILE_EXTENSION

See Also:

• Constant Field Values

EXTERNAL_STREAM_FLAG

private static final int EXTERNAL_STREAM_FLAG

See Also:

• Constant Field Values

EXTERNAL_CHUNK_THRESHOLD

private static final int EXTERNAL_CHUNK_THRESHOLD

See Also:

• Constant Field Values

CHUNK_NOT_PRESENT

private static final int CHUNK_NOT_PRESENT

See Also:

• Constant Field Values

file

private final FileChannel file

externalFileDir

private final Path externalFileDir

version

final RegionFileVersion version

header

private final ByteBuffer header

offsets

private final IntBuffer offsets

timestamps

private final IntBuffer timestamps

usedSectors

protected final RegionBitmap usedSectors

Constructor Details

RegionFile

public RegionFile(Path p_196950_,
 Path p_196951_,
 boolean p_196952_)
           throws IOException

Throws:

IOException

RegionFile

public RegionFile(Path p_63633_,
 Path p_63634_,
 RegionFileVersion p_63635_,
 boolean p_63636_)
           throws IOException

Throws:

IOException

Method Details

getExternalChunkPath

private Path getExternalChunkPath(ChunkPos p_63685_)

getChunkDataInputStream

@Nullable
public DataInputStream getChunkDataInputStream(ChunkPos p_63646_)
                                        throws IOException

Throws:

IOException

getTimestamp

private static int getTimestamp()

isExternalStreamChunk

private static boolean isExternalStreamChunk(byte p_63639_)

getExternalChunkVersion

private static byte getExternalChunkVersion(byte p_63670_)

createChunkInputStream

@Nullable
private DataInputStream createChunkInputStream(ChunkPos p_63651_,
 byte p_63652_,
 InputStream p_63653_)
                                        throws IOException

Throws:

IOException

createExternalChunkInputStream

@Nullable
private DataInputStream createExternalChunkInputStream(ChunkPos p_63648_,
 byte p_63649_)
                                                throws IOException

Throws:

IOException

createStream

private static ByteArrayInputStream createStream(ByteBuffer p_63660_,
 int p_63661_)

packSectorOffset

private int packSectorOffset(int p_63643_,
 int p_63644_)

getNumSectors

private static int getNumSectors(int p_63641_)

getSectorNumber

private static int getSectorNumber(int p_63672_)

sizeToSectors

private static int sizeToSectors(int p_63677_)

doesChunkExist

public boolean doesChunkExist(ChunkPos p_63674_)

getChunkDataOutputStream

public DataOutputStream getChunkDataOutputStream(ChunkPos p_63679_)
                                          throws IOException

Throws:

IOException

flush

public void flush()
           throws IOException

Throws:

IOException

clear

public void clear(ChunkPos p_156614_)
           throws IOException

Throws:

IOException

write

protected void write(ChunkPos p_63655_,
 ByteBuffer p_63656_)
              throws IOException

Throws:

IOException

createExternalStub

private ByteBuffer createExternalStub()

writeToExternalFile

private RegionFile.CommitOp writeToExternalFile(Path p_63663_,
 ByteBuffer p_63664_)
                                         throws IOException

Throws:

IOException

writeHeader

private void writeHeader()
                  throws IOException

Throws:

IOException

getOffset

private int getOffset(ChunkPos p_63687_)

hasChunk

public boolean hasChunk(ChunkPos p_63683_)

getOffsetIndex

private static int getOffsetIndex(ChunkPos p_63689_)

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Throws:

IOException

padToFullSector

private void padToFullSector()
                      throws IOException

Throws:

IOException