Package cn.nukkit.level.format.generic

Class BaseRegionLoader

java.lang.Object

cn.nukkit.level.format.generic.BaseRegionLoader

Direct Known Subclasses:

RegionLoader

public abstract class BaseRegionLoader
extends Object

Author:

MagicDroidX (Nukkit Project)

Field Summary

Fields

Modifier and Type	Field	Description
static final byte	COMPRESSION_GZIP
static final int	COMPRESSION_LEVEL
static final byte	COMPRESSION_ZLIB
protected int	lastSector
long	lastUsed
protected LevelProvider	levelProvider
protected final Map<Integer,Integer[]>	locationTable	Deprecated.
static final int	MAX_SECTOR_LENGTH	Deprecated.
protected final it.unimi.dsi.fastutil.ints.Int2ObjectMap<int[]>	primitiveLocationTable
static final int	VERSION
protected int	x
protected int	z

Constructor Summary

Constructors

Constructor	Description
BaseRegionLoader(LevelProvider level, int regionX, int regionZ, String ext)

Method Summary

Modifier and Type	Method	Description
abstract boolean	chunkExists(int x, int z)
void	close()
void	compress()
protected abstract void	createBlank()
abstract int	doSlowCleanUp()
int[]	getIntLocationIndexes()
Integer[]	getLocationIndexes()	Deprecated.
RandomAccessFile	getRandomAccessFile()
abstract int	getX()
abstract int	getZ()
protected abstract boolean	isChunkGenerated(int index)
protected abstract void	loadLocationTable()
abstract BaseFullChunk	readChunk(int x, int z)
abstract void	removeChunk(int x, int z)
protected abstract void	saveChunk(int x, int z, byte[] chunkData)
protected abstract BaseFullChunk	unserializeChunk(byte[] data)
abstract void	writeChunk(FullChunk chunk)
protected abstract void	writeLocationIndex(int index)

Methods inherited from class java.lang.Object

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

Field Details

VERSION

public static final int VERSION

See Also:

• Constant Field Values

COMPRESSION_GZIP

public static final byte COMPRESSION_GZIP

See Also:

• Constant Field Values

COMPRESSION_ZLIB

public static final byte COMPRESSION_ZLIB

See Also:

• Constant Field Values

MAX_SECTOR_LENGTH

@Deprecated
@DeprecationDetails(since="1.19.30-r2",
                    reason="moved into nukkit.yml",
                    replaceWith="Server::getMaximumSizePerChunk()")
public static final int MAX_SECTOR_LENGTH

Deprecated.

See Also:

• Constant Field Values

COMPRESSION_LEVEL

public static final int COMPRESSION_LEVEL

See Also:

• Constant Field Values

primitiveLocationTable

@PowerNukkitOnly
@Since("1.4.0.0-PN")
protected final it.unimi.dsi.fastutil.ints.Int2ObjectMap<int[]> primitiveLocationTable

locationTable

@Deprecated
@DeprecationDetails(since="1.4.0.0-PN",
                    reason="Integer boxing was polluting the memory heap",
                    replaceWith="primitiveLocationTable")
protected final Map<Integer,Integer[]> locationTable

Deprecated.

lastUsed

public long lastUsed

x

protected int x

z

protected int z

lastSector

protected int lastSector

levelProvider

protected LevelProvider levelProvider

Constructor Details

BaseRegionLoader

public BaseRegionLoader(LevelProvider level,
 int regionX,
 int regionZ,
 String ext)

Method Details

compress

public void compress()

getRandomAccessFile

public RandomAccessFile getRandomAccessFile()

isChunkGenerated

protected abstract boolean isChunkGenerated(int index)

readChunk

public abstract BaseFullChunk readChunk(int x,
 int z)
                                 throws IOException

Throws:

IOException

unserializeChunk

protected abstract BaseFullChunk unserializeChunk(byte[] data)

chunkExists

public abstract boolean chunkExists(int x,
 int z)

saveChunk

protected abstract void saveChunk(int x,
 int z,
 byte[] chunkData)
                           throws IOException

Throws:

IOException

removeChunk

public abstract void removeChunk(int x,
 int z)

writeChunk

public abstract void writeChunk(FullChunk chunk)
                         throws Exception

Throws:

Exception

close

public void close()
           throws IOException

Throws:

IOException

loadLocationTable

protected abstract void loadLocationTable()
                                   throws IOException

Throws:

IOException

doSlowCleanUp

public abstract int doSlowCleanUp()
                           throws Exception

Throws:

Exception

writeLocationIndex

protected abstract void writeLocationIndex(int index)
                                    throws IOException

Throws:

IOException

createBlank

protected abstract void createBlank()
                             throws IOException

Throws:

IOException

getX

public abstract int getX()

getZ

public abstract int getZ()

getLocationIndexes

@Deprecated
@DeprecationDetails(since="1.4.0.0-PN",
                    by="PowerNukkit",
                    reason="Unnecessary int-boxing causing heap pollution",
                    replaceWith="getIntLocationIndexes()")
public Integer[] getLocationIndexes()

Deprecated.

getIntLocationIndexes

@PowerNukkitOnly
@Since("1.4.0.0-PN")
public int[] getIntLocationIndexes()