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

private class

RegionFile.ChunkBuffer

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 final RegionStorageInfo

info

private static final org.slf4j.Logger

LOGGER

private final IntBuffer

offsets

private static final ByteBuffer

PADDING_BUFFER

private final Path

path

private static final int

SECTOR_BYTES

protected static final int

SECTOR_INTS

private final IntBuffer

timestamps

protected final RegionBitmap

usedSectors

private final RegionFileVersion

version
Constructor Summary

Constructors

Constructor

Description

RegionFile(RegionStorageInfo info, Path path, Path externalFileDir, boolean sync)

RegionFile(RegionStorageInfo info, Path path, Path externalFileDir, RegionFileVersion version, boolean sync)
Method Summary

Modifier and Type

Method

Description

void

clear(ChunkPos pos)

void

close()

private @Nullable DataInputStream

createChunkInputStream(ChunkPos pos, byte versionId, InputStream chunkStream)

private @Nullable DataInputStream

createExternalChunkInputStream(ChunkPos pos, byte versionId)

private ByteBuffer

createExternalStub()

private static ByteArrayInputStream

createStream(ByteBuffer buffer, int length)

boolean

doesChunkExist(ChunkPos pos)

void

flush()

@Nullable DataInputStream

getChunkDataInputStream(ChunkPos pos)

DataOutputStream

getChunkDataOutputStream(ChunkPos pos)

private Path

getExternalChunkPath(ChunkPos pos)

private static byte

getExternalChunkVersion(byte version)

private static int

getNumSectors(int offset)

private int

getOffset(ChunkPos pos)

private static int

getOffsetIndex(ChunkPos pos)

Path

getPath()

private static int

getSectorNumber(int offset)

private static int

getTimestamp()

boolean

hasChunk(ChunkPos pos)

private static boolean

isExternalStreamChunk(byte version)

private int

packSectorOffset(int index, int size)

private void

padToFullSector()

private static int

sizeToSectors(int size)

protected void

write(ChunkPos pos, ByteBuffer data)

private void

writeHeader()

private RegionFile.CommitOp

writeToExternalFile(Path path, ByteBuffer data)

Methods inherited from class 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
- info
  
  private final RegionStorageInfo info
- path
  
  private final Path path
- file
  
  private final FileChannel file
- externalFileDir
  
  private final Path externalFileDir
- version
  
  private 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(RegionStorageInfo info, Path path, Path externalFileDir, boolean sync) throws IOException
  
  Throws:
  
  IOException
- RegionFile
  
  public RegionFile(RegionStorageInfo info, Path path, Path externalFileDir, RegionFileVersion version, boolean sync) throws IOException
  
  Throws:
  
  IOException
Method Details
- getPath
  
  public Path getPath()
- getExternalChunkPath
  
  private Path getExternalChunkPath(ChunkPos pos)
- getChunkDataInputStream
  
  public @Nullable DataInputStream getChunkDataInputStream(ChunkPos pos) throws IOException
  
  Throws:
  
  IOException
- getTimestamp
  
  private static int getTimestamp()
- isExternalStreamChunk
  
  private static boolean isExternalStreamChunk(byte version)
- getExternalChunkVersion
  
  private static byte getExternalChunkVersion(byte version)
- createChunkInputStream
  
  private @Nullable DataInputStream createChunkInputStream(ChunkPos pos, byte versionId, InputStream chunkStream) throws IOException
  
  Throws:
  
  IOException
- createExternalChunkInputStream
  
  private @Nullable DataInputStream createExternalChunkInputStream(ChunkPos pos, byte versionId) throws IOException
  
  Throws:
  
  IOException
- createStream
  
  private static ByteArrayInputStream createStream(ByteBuffer buffer, int length)
- packSectorOffset
  
  private int packSectorOffset(int index, int size)
- getNumSectors
  
  private static int getNumSectors(int offset)
- getSectorNumber
  
  private static int getSectorNumber(int offset)
- sizeToSectors
  
  private static int sizeToSectors(int size)
- doesChunkExist
  
  public boolean doesChunkExist(ChunkPos pos)
- getChunkDataOutputStream
  
  public DataOutputStream getChunkDataOutputStream(ChunkPos pos) throws IOException
  
  Throws:
  
  IOException
- flush
  
  public void flush() throws IOException
  
  Throws:
  
  IOException
- clear
  
  public void clear(ChunkPos pos) throws IOException
  
  Throws:
  
  IOException
- write
  
  protected void write(ChunkPos pos, ByteBuffer data) throws IOException
  
  Throws:
  
  IOException
- createExternalStub
  
  private ByteBuffer createExternalStub()
- writeToExternalFile
  
  private RegionFile.CommitOp writeToExternalFile(Path path, ByteBuffer data) throws IOException
  
  Throws:
  
  IOException
- writeHeader
  
  private void writeHeader() throws IOException
  
  Throws:
  
  IOException
- getOffset
  
  private int getOffset(ChunkPos pos)
- hasChunk
  
  public boolean hasChunk(ChunkPos pos)
- getOffsetIndex
  
  private static int getOffsetIndex(ChunkPos pos)
- close
  
  public void close() throws IOException
  
  Specified by:
  
  close in interface AutoCloseable
  
  Throws:
  
  IOException
- padToFullSector
  
  private void padToFullSector() throws IOException
  
  Throws:
  
  IOException

Class RegionFile

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class Object

Field Details

LOGGER

SECTOR_BYTES

SECTOR_INTS

CHUNK_HEADER_SIZE

HEADER_OFFSET

PADDING_BUFFER

EXTERNAL_FILE_EXTENSION

EXTERNAL_STREAM_FLAG

EXTERNAL_CHUNK_THRESHOLD

CHUNK_NOT_PRESENT

info

path

file

externalFileDir

version

header

offsets

timestamps

usedSectors

Constructor Details

RegionFile

RegionFile

Method Details

getPath

getExternalChunkPath

getChunkDataInputStream

getTimestamp

isExternalStreamChunk

getExternalChunkVersion

createChunkInputStream

createExternalChunkInputStream

createStream

packSectorOffset

getNumSectors

getSectorNumber

sizeToSectors

doesChunkExist

getChunkDataOutputStream

flush

clear

write

createExternalStub

writeToExternalFile

writeHeader

getOffset

hasChunk

getOffsetIndex

close

padToFullSector