Plex-FAWE/worldedit-core/src/main/java/com/boydti/fawe/object/clipboard/DiskOptimizedClipboard.java

491 lines
17 KiB
Java

package com.boydti.fawe.object.clipboard;
import com.boydti.fawe.Fawe;
import com.boydti.fawe.config.Settings;
import com.boydti.fawe.jnbt.streamer.IntValueReader;
import com.boydti.fawe.object.IntTriple;
import com.boydti.fawe.util.MainUtil;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.IntTag;
import com.sk89q.jnbt.Tag;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.entity.Entity;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.internal.util.LogManagerCompat;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.CuboidRegion;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.util.Location;
import com.sk89q.worldedit.world.biome.BiomeType;
import com.sk89q.worldedit.world.biome.BiomeTypes;
import com.sk89q.worldedit.world.block.BaseBlock;
import com.sk89q.worldedit.world.block.BlockState;
import com.sk89q.worldedit.world.block.BlockStateHolder;
import com.sk89q.worldedit.world.block.BlockTypes;
import org.apache.logging.log4j.Logger;
import javax.annotation.Nullable;
import java.io.Closeable;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.URI;
import java.nio.ByteBuffer;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.stream.Collectors;
/**
* A clipboard with disk backed storage. (lower memory + loads on crash)
* - Uses an auto closable RandomAccessFile for getting / setting id / data
* - I don't know how to reduce nbt / entities to O(2) complexity, so it is stored in memory.
*/
public class DiskOptimizedClipboard extends LinearClipboard implements Closeable {
private static final Logger LOGGER = LogManagerCompat.getLogger();
private static final int HEADER_SIZE = 14;
private final HashMap<IntTriple, CompoundTag> nbtMap;
private final File file;
private RandomAccessFile braf;
private MappedByteBuffer byteBuffer;
private FileChannel fileChannel;
private boolean hasBiomes;
private boolean canHaveBiomes = true;
public DiskOptimizedClipboard(Region region, UUID uuid) {
this(region.getDimensions(), MainUtil.getFile(Fawe.get() != null ? Fawe.imp().getDirectory() : new File("."), Settings.IMP.PATHS.CLIPBOARD + File.separator + uuid + ".bd"));
}
public DiskOptimizedClipboard(BlockVector3 dimensions) {
this(dimensions, MainUtil.getFile(Fawe.imp() != null ? Fawe.imp().getDirectory() : new File("."), Settings.IMP.PATHS.CLIPBOARD + File.separator + UUID.randomUUID() + ".bd"));
}
public DiskOptimizedClipboard(BlockVector3 dimensions, File file) {
super(dimensions);
if (HEADER_SIZE + ((long) getVolume() << 1) >= Integer.MAX_VALUE) {
throw new IllegalArgumentException("Dimensions too large for this clipboard format. Use //lazycopy for large selections.");
} else if (HEADER_SIZE + ((long) getVolume() << 1) + (long) ((getHeight() >> 2) + 1) * ((getLength() >> 2) + 1) * ((getWidth() >> 2) + 1) >= Integer.MAX_VALUE) {
LOGGER.error("Dimensions are too large for biomes to be stored in a DiskOptimizedClipboard");
canHaveBiomes = false;
}
nbtMap = new HashMap<>();
try {
this.file = file;
try {
if (!file.exists()) {
File parent = file.getParentFile();
if (parent != null) {
file.getParentFile().mkdirs();
}
file.createNewFile();
}
} catch (Exception e) {
e.printStackTrace();
}
this.braf = new RandomAccessFile(file, "rw");
long fileLength = (long) getVolume() * 2L + (long) HEADER_SIZE;
braf.setLength(0);
braf.setLength(fileLength);
init();
// write getLength() etc
byteBuffer.putChar(2, (char) getWidth());
byteBuffer.putChar(4, (char) getHeight());
byteBuffer.putChar(6, (char) getLength());
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
@Override
public URI getURI() {
return file.toURI();
}
private static BlockVector3 readSize(File file) {
try (DataInputStream is = new DataInputStream(new FileInputStream(file))) {
is.skipBytes(2);
return BlockVector3.at(is.readChar(), is.readChar(), is.readChar());
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
public DiskOptimizedClipboard(File file) {
super(readSize(file));
nbtMap = new HashMap<>();
try {
this.file = file;
this.braf = new RandomAccessFile(file, "rw");
braf.setLength(file.length());
init();
if (braf.length() - HEADER_SIZE == ((long) getVolume() << 1) + (long) ((getHeight() >> 2) + 1) * ((getLength() >> 2) + 1) * ((getWidth() >> 2) + 1)) {
hasBiomes = true;
}
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public File getFile() {
return file;
}
private void init() throws IOException {
if (this.fileChannel == null) {
this.fileChannel = braf.getChannel();
this.byteBuffer = fileChannel.map(FileChannel.MapMode.READ_WRITE, 0, file.length());
}
}
private boolean initBiome() {
if (!canHaveBiomes) {
return false;
}
if (!hasBiomes) {
try {
hasBiomes = true;
close();
this.braf = new RandomAccessFile(file, "rw");
// Since biomes represent a 4x4x4 cube, we store fewer biome bytes that volume at 1 byte per biome
// +1 to each too allow for cubes that lie across the region boundary
this.braf.setLength(HEADER_SIZE + ((long) getVolume() << 1) + (long) ((getHeight() >> 2) + 1) * ((getLength() >> 2) + 1) * ((getWidth() >> 2) + 1));
init();
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
return true;
}
@Override
public boolean hasBiomes() {
return hasBiomes;
}
@Override
public boolean setBiome(BlockVector3 position, BiomeType biome) {
return setBiome(position.getX(), position.getY(), position.getZ(), biome);
}
@Override
public boolean setBiome(int x, int y, int z, BiomeType biome) {
setBiome(getBiomeIndex(x, y, z), biome);
return true;
}
@Override
public void setBiome(int index, BiomeType biome) {
if (initBiome()) {
try {
byteBuffer.put(HEADER_SIZE + (getVolume() << 1) + index, (byte) biome.getInternalId());
} catch (IndexOutOfBoundsException e) {
System.out.println((long) (getHeight() >> 2) * (getLength() >> 2) * (getWidth() >> 2));
System.out.println(index);
e.printStackTrace();
}
}
}
@Override
public BiomeType getBiome(int index) {
if (!hasBiomes()) {
return null;
}
int biomeId = byteBuffer.get(HEADER_SIZE + (getVolume() << 1) + index) & 0xFF;
return BiomeTypes.get(biomeId);
}
@Override
public void streamBiomes(IntValueReader task) {
if (!hasBiomes()) {
return;
}
int mbbIndex = HEADER_SIZE + (getVolume() << 1);
try {
for (int y = 0; y < getHeight(); y ++) {
for (int z = 0; z < getLength(); z++) {
for (int x = 0; x < getWidth(); x++) {
int biome = byteBuffer.get(mbbIndex + getBiomeIndex(x, y, z)) & 0xFF;
task.applyInt(getIndex(x, y, z), biome);
}
}
}
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
@Override
public BiomeType getBiomeType(int x, int y, int z) {
return getBiome(getBiomeIndex(x, y, z));
}
@Override
public BiomeType getBiome(BlockVector3 position) {
return getBiome(getBiomeIndex(position.getX(), position.getY(), position.getZ()));
}
public BlockArrayClipboard toClipboard() {
try {
CuboidRegion region = new CuboidRegion(BlockVector3.at(0, 0, 0), BlockVector3.at(getWidth() - 1, getHeight() - 1, getLength() - 1));
int ox = byteBuffer.getShort(8);
int oy = byteBuffer.getShort(10);
int oz = byteBuffer.getShort(12);
BlockArrayClipboard clipboard = new BlockArrayClipboard(region, this);
clipboard.setOrigin(BlockVector3.at(ox, oy, oz));
return clipboard;
} catch (Throwable e) {
e.printStackTrace();
}
return null;
}
@Override
public void setOrigin(BlockVector3 offset) {
super.setOrigin(offset);
try {
byteBuffer.putShort(8, (short) offset.getBlockX());
byteBuffer.putShort(10, (short) offset.getBlockY());
byteBuffer.putShort(12, (short) offset.getBlockZ());
} catch (Throwable e) {
e.printStackTrace();
}
}
@Override
public void flush() {
byteBuffer.force();
}
private void closeDirectBuffer(ByteBuffer cb) {
if (cb == null || !cb.isDirect()) {
return;
}
// we could use this type cast and call functions without reflection code,
// but static import from sun.* package is risky for non-SUN virtual machine.
//try { ((sun.nio.ch.DirectBuffer)cb).cleaner().clean(); } catch (Exception ex) { }
try {
Method cleaner = cb.getClass().getMethod("cleaner");
cleaner.setAccessible(true);
Method clean = Class.forName("sun.misc.Cleaner").getMethod("clean");
clean.setAccessible(true);
clean.invoke(cleaner.invoke(cb));
} catch (Exception ex) {
try {
final Class<?> unsafeClass = Class.forName("sun.misc.Unsafe");
final Field theUnsafeField = unsafeClass.getDeclaredField("theUnsafe");
theUnsafeField.setAccessible(true);
final Object theUnsafe = theUnsafeField.get(null);
final Method invokeCleanerMethod = unsafeClass.getMethod("invokeCleaner", ByteBuffer.class);
invokeCleanerMethod.invoke(theUnsafe, cb);
} catch (Exception e) {
System.gc();
}
}
}
@Override
public void close() {
try {
if (byteBuffer != null) {
byteBuffer.force();
fileChannel.close();
braf.close();
//noinspection ResultOfMethodCallIgnored
file.setWritable(true);
closeDirectBuffer(byteBuffer);
byteBuffer = null;
fileChannel = null;
braf = null;
}
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public Collection<CompoundTag> getTileEntities() {
return nbtMap.values();
}
public int getIndex(int x, int y, int z) {
return x + y * getArea() + z * getWidth();
}
public int getBiomeIndex(int x, int y, int z) {
return (x >> 2) + (y >> 2) * (getWidth() >> 2) * (getLength() >> 2) + (z >> 2) * (getWidth() >> 2);
}
@Override
public BaseBlock getFullBlock(int x, int y, int z) {
return toBaseBlock(getBlock(x, y, z), x, y, z);
}
private BaseBlock toBaseBlock(BlockState state, int i) {
if (state.getMaterial().hasContainer() && !nbtMap.isEmpty()) {
CompoundTag nbt;
if (nbtMap.size() < 4) {
nbt = null;
for (Map.Entry<IntTriple, CompoundTag> entry : nbtMap.entrySet()) {
IntTriple key = entry.getKey();
int index = getIndex(key.getX(), key.getY(), key.getZ());
if (index == i) {
nbt = entry.getValue();
break;
}
}
} else {
int y = i / getArea();
int newI = i - y * getArea();
int z = newI / getWidth();
int x = newI - z * getWidth();
nbt = nbtMap.get(new IntTriple(x, y, z));
}
return state.toBaseBlock(nbt);
}
return state.toBaseBlock();
}
private BaseBlock toBaseBlock(BlockState state, int x, int y, int z) {
if (state.getMaterial().hasContainer() && !nbtMap.isEmpty()) {
CompoundTag nbt = nbtMap.get(new IntTriple(x, y, z));
return state.toBaseBlock(nbt);
}
return state.toBaseBlock();
}
@Override
public BaseBlock getFullBlock(int i) {
return toBaseBlock(getBlock(i), i);
}
@Override
public BlockState getBlock(int index) {
try {
int diskIndex = HEADER_SIZE + (index << 1);
char ordinal = byteBuffer.getChar(diskIndex);
return BlockState.getFromOrdinal(ordinal);
} catch (IndexOutOfBoundsException ignored) {
} catch (Exception e) {
e.printStackTrace();
}
return BlockTypes.AIR.getDefaultState();
}
@Override
public BlockState getBlock(int x, int y, int z) {
return getBlock(getIndex(x, y, z));
}
@Override
public boolean setTile(int x, int y, int z, CompoundTag tag) {
final Map<String, Tag> values = new HashMap<>(tag.getValue());
values.put("x", new IntTag(x));
values.put("y", new IntTag(y));
values.put("z", new IntTag(z));
nbtMap.put(new IntTriple(x, y, z), new CompoundTag(values));
return true;
}
@Override
public <B extends BlockStateHolder<B>> boolean setBlock(int x, int y, int z, B block) {
try {
int index = HEADER_SIZE + (getIndex(x, y, z) << 1);
char ordinal = block.getOrdinalChar();
if (ordinal == 0) {
ordinal = 1;
}
byteBuffer.putChar(index, ordinal);
boolean hasNbt = block instanceof BaseBlock && block.hasNbtData();
if (hasNbt) {
setTile(x, y, z, block.getNbtData());
}
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
@Override
public <B extends BlockStateHolder<B>> boolean setBlock(int i, B block) {
try {
char ordinal = block.getOrdinalChar();
int index = HEADER_SIZE + (i << 1);
byteBuffer.putChar(index, ordinal);
boolean hasNbt = block instanceof BaseBlock && block.hasNbtData();
if (hasNbt) {
int y = i / getArea();
int newI = i - y * getArea();
int z = newI / getWidth();
int x = newI - z * getWidth();
setTile(x, y, z, block.getNbtData());
}
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
@Nullable
@Override
public Entity createEntity(Location location, BaseEntity entity) {
BlockArrayClipboard.ClipboardEntity ret = new BlockArrayClipboard.ClipboardEntity(location, entity);
entities.add(ret);
return ret;
}
@Override
public List<? extends Entity> getEntities() {
return new ArrayList<>(entities);
}
@Override
public List<? extends Entity> getEntities(Region region) {
return new ArrayList<>(entities.stream().filter(e -> region.contains(e.getLocation().toBlockPoint())).collect(Collectors.toList()));
}
@Override
public void removeEntity(Entity entity) {
if (!(entity instanceof BlockArrayClipboard.ClipboardEntity)) {
Location loc = entity.getLocation();
removeEntity(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ(), entity.getState().getNbtData().getUUID());
} else {
this.entities.remove(entity);
}
}
@Override
public void removeEntity(int x, int y, int z, UUID uuid) {
Iterator<BlockArrayClipboard.ClipboardEntity> iter = this.entities.iterator();
while (iter.hasNext()) {
BlockArrayClipboard.ClipboardEntity entity = iter.next();
UUID entUUID = entity.getState().getNbtData().getUUID();
if (uuid.equals(entUUID)) {
iter.remove();
return;
}
}
}
}