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Add debug for sync chunk loads

Browse source 
This patch adds a tool to find calls to getChunkAt which would load
chunks, however it must be enabled by setting the startup flag
-Dpaper.debug-sync-loads=true

- To get a debug log for sync loads, the command is
  /paper syncloadinfo
- To clear clear the currently stored sync load info, use
  /paper syncloadinfo clear
This commit is contained in:
Spottedleaf 2019-07-19 03:29:14 -07:00
parent 2ce266b657
commit f179cfaff2
5 changed files with 330 additions and 55 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
paper-server/patches/sources/net/minecraft/server/level/ServerChunkCache.java.patch
View file

@ -14,12 +14,10 @@
public ServerChunkCache(ServerLevel world, LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, StructureTemplateManager structureTemplateManager, Executor workerExecutor, ChunkGenerator chunkGenerator, int viewDistance, int simulationDistance, boolean dsync, ChunkProgressListener worldGenerationProgressListener, ChunkStatusUpdateListener chunkStatusChangeListener, Supplier<DimensionDataStorage> persistentStateManagerFactory) {
this.level = world;
@@ -93,8 +100,66 @@
this.distanceManager = this.chunkMap.getDistanceManager();
this.distanceManager.updateSimulationDistance(simulationDistance);
@@ -95,6 +102,64 @@
this.clearCache();
+ }
+
}
+ // CraftBukkit start - properly implement isChunkLoaded
+ public boolean isChunkLoaded(int chunkX, int chunkZ) {
+ ChunkHolder chunk = this.chunkMap.getUpdatingChunkIfPresent(ChunkPos.asLong(chunkX, chunkZ));
@ -50,8 +48,8 @@
+
+ public <T> void addTicketAtLevel(TicketType<T> ticketType, ChunkPos chunkPos, int ticketLevel, T identifier) {
+ this.distanceManager.addTicket(ticketType, chunkPos, ticketLevel, identifier);
}
+ }
+
+ public <T> void removeTicketAtLevel(TicketType<T> ticketType, ChunkPos chunkPos, int ticketLevel, T identifier) {
+ this.distanceManager.removeTicket(ticketType, chunkPos, ticketLevel, identifier);
+ }
@ -90,16 +88,18 @@
return ichunkaccess;
}
}
@@ -151,7 +216,7 @@
@@ -150,8 +215,9 @@
Objects.requireNonNull(completablefuture);
chunkproviderserver_b.managedBlock(completablefuture::isDone);
+ // com.destroystokyo.paper.io.SyncLoadFinder.logSyncLoad(this.level, x, z); // Paper - Add debug for sync chunk loads
ChunkResult<ChunkAccess> chunkresult = (ChunkResult) completablefuture.join();
- ChunkAccess ichunkaccess1 = (ChunkAccess) chunkresult.orElse((Object) null);
+ ChunkAccess ichunkaccess1 = (ChunkAccess) chunkresult.orElse(null); // CraftBukkit - decompile error
if (ichunkaccess1 == null && create) {
throw (IllegalStateException) Util.pauseInIde(new IllegalStateException("Chunk not there when requested: " + chunkresult.getError()));
@@ -231,7 +296,15 @@
@@ -231,7 +297,15 @@
int l = ChunkLevel.byStatus(leastStatus);
ChunkHolder playerchunk = this.getVisibleChunkIfPresent(k);
@ -116,7 +116,7 @@
this.distanceManager.addTicket(TicketType.UNKNOWN, chunkcoordintpair, l, chunkcoordintpair);
if (this.chunkAbsent(playerchunk, l)) {
ProfilerFiller gameprofilerfiller = Profiler.get();
@@ -250,7 +323,7 @@
@@ -250,7 +324,7 @@
}
private boolean chunkAbsent(@Nullable ChunkHolder holder, int maxLevel) {
@ -125,7 +125,7 @@
}
@Override
@@ -279,7 +352,7 @@
@@ -279,7 +353,7 @@
return this.mainThreadProcessor.pollTask();
}
@ -134,7 +134,7 @@
boolean flag = this.distanceManager.runAllUpdates(this.chunkMap);
boolean flag1 = this.chunkMap.promoteChunkMap();
@@ -309,18 +382,40 @@
@@ -309,18 +383,40 @@
@Override
public void close() throws IOException {
@ -177,7 +177,7 @@
this.distanceManager.purgeStaleTickets();
}
@@ -401,14 +496,22 @@
@@ -401,14 +497,22 @@
this.lastSpawnState = spawnercreature_d;
profiler.popPush("spawnAndTick");
@ -203,7 +203,7 @@
} else {
list1 = List.of();
}
@@ -420,7 +523,7 @@
@@ -420,7 +524,7 @@
ChunkPos chunkcoordintpair = chunk.getPos();
chunk.incrementInhabitedTime(timeDelta);
@ -212,7 +212,7 @@
NaturalSpawner.spawnForChunk(this.level, chunk, spawnercreature_d, list1);
}
@@ -541,10 +644,16 @@
@@ -541,10 +645,16 @@
@Override
public void setSpawnSettings(boolean spawnMonsters) {
@ -231,7 +231,7 @@
public String getChunkDebugData(ChunkPos pos) {
return this.chunkMap.getChunkDebugData(pos);
}
@@ -618,14 +727,20 @@
@@ -618,14 +728,20 @@
}
@Override

87
paper-server/patches/sources/net/minecraft/server/level/ServerLevel.java.patch
View file

@ -61,7 +61,7 @@
private int lastSpawnChunkRadius;
final EntityTickList entityTickList = new EntityTickList();
public final PersistentEntitySectionManager<Entity> entityManager;
@@ -214,52 +226,194 @@
@@ -214,54 +226,203 @@
private final boolean tickTime;
private final RandomSequences randomSequences;
@ -129,7 +129,7 @@
+ }
+ int minBlockX = Mth.floor(axisalignedbb.minX - 1.0E-7D) - 3;
+ int minBlockZ = Mth.floor(axisalignedbb.minZ - 1.0E-7D) - 3;
+
+ int maxBlockX = Mth.floor(axisalignedbb.maxX + 1.0E-7D) + 3;
+ int maxBlockZ = Mth.floor(axisalignedbb.maxZ + 1.0E-7D) + 3;
+
@ -209,7 +209,7 @@
+ ChunkGenerator chunkgenerator = worlddimension.generator();
+ // CraftBukkit start
+ this.serverLevelData.setWorld(this);
+
+ if (biomeProvider != null) {
+ BiomeSource worldChunkManager = new CustomWorldChunkManager(this.getWorld(), biomeProvider, this.server.registryAccess().lookupOrThrow(Registries.BIOME));
+ if (chunkgenerator instanceof NoiseBasedChunkGenerator cga) {
@ -279,8 +279,17 @@
+ this.getCraftServer().addWorld(this.getWorld()); // CraftBukkit
}
+ // Paper start
+ @Override
+ public boolean hasChunk(int chunkX, int chunkZ) {
+ return this.getChunkSource().getChunkAtIfLoadedImmediately(chunkX, chunkZ) != null;
+ }
+ // Paper end
+
/** @deprecated */
@@ -305,12 +459,20 @@
@Deprecated
@VisibleForTesting
@@ -305,12 +466,20 @@
long j;
if (this.sleepStatus.areEnoughSleeping(i) && this.sleepStatus.areEnoughDeepSleeping(i, this.players)) {
@ -304,7 +313,7 @@
if (this.getGameRules().getBoolean(GameRules.RULE_WEATHER_CYCLE) && this.isRaining()) {
this.resetWeatherCycle();
}
@@ -345,7 +507,7 @@
@@ -345,7 +514,7 @@
this.handlingTick = false;
gameprofilerfiller.pop();
@ -313,7 +322,7 @@
if (flag1) {
this.resetEmptyTime();
@@ -359,6 +521,7 @@
@@ -359,6 +528,7 @@
gameprofilerfiller.pop();
}
@ -321,7 +330,7 @@
this.entityTickList.forEach((entity) -> {
if (!entity.isRemoved()) {
if (!tickratemanager.isEntityFrozen(entity)) {
@@ -429,7 +592,7 @@
@@ -429,7 +599,7 @@
private void wakeUpAllPlayers() {
this.sleepStatus.removeAllSleepers();
@ -330,7 +339,7 @@
entityplayer.stopSleepInBed(false, false);
});
}
@@ -442,12 +605,12 @@
@@ -442,12 +612,12 @@
ProfilerFiller gameprofilerfiller = Profiler.get();
gameprofilerfiller.push("thunder");
@ -345,7 +354,7 @@
if (flag1) {
SkeletonHorse entityhorseskeleton = (SkeletonHorse) EntityType.SKELETON_HORSE.create(this, EntitySpawnReason.EVENT);
@@ -456,7 +619,7 @@
@@ -456,7 +626,7 @@
entityhorseskeleton.setTrap(true);
entityhorseskeleton.setAge(0);
entityhorseskeleton.setPos((double) blockposition.getX(), (double) blockposition.getY(), (double) blockposition.getZ());
@ -354,7 +363,7 @@
}
}
@@ -465,18 +628,20 @@
@@ -465,18 +635,20 @@
if (entitylightning != null) {
entitylightning.moveTo(Vec3.atBottomCenterOf(blockposition));
entitylightning.setVisualOnly(flag1);
@ -376,7 +385,7 @@
gameprofilerfiller.popPush("tickBlocks");
if (randomTickSpeed > 0) {
@@ -521,7 +686,7 @@
@@ -521,7 +693,7 @@
Biome biomebase = (Biome) this.getBiome(blockposition1).value();
if (biomebase.shouldFreeze(this, blockposition2)) {
@ -385,7 +394,7 @@
}
if (this.isRaining()) {
@@ -537,10 +702,10 @@
@@ -537,10 +709,10 @@
BlockState iblockdata1 = (BlockState) iblockdata.setValue(SnowLayerBlock.LAYERS, j + 1);
Block.pushEntitiesUp(iblockdata, iblockdata1, this, blockposition1);
@ -398,7 +407,7 @@
}
}
@@ -701,33 +866,67 @@
@@ -701,33 +873,67 @@
this.rainLevel = Mth.clamp(this.rainLevel, 0.0F, 1.0F);
}
@ -474,7 +483,7 @@
}
public void resetEmptyTime() {
@@ -754,6 +953,13 @@
@@ -754,6 +960,13 @@
}
public void tickNonPassenger(Entity entity) {
@ -488,7 +497,7 @@
entity.setOldPosAndRot();
ProfilerFiller gameprofilerfiller = Profiler.get();
@@ -763,6 +969,7 @@
@@ -763,6 +976,7 @@
});
gameprofilerfiller.incrementCounter("tickNonPassenger");
entity.tick();
@ -496,7 +505,7 @@
gameprofilerfiller.pop();
Iterator iterator = entity.getPassengers().iterator();
@@ -786,6 +993,7 @@
@@ -786,6 +1000,7 @@
});
gameprofilerfiller.incrementCounter("tickPassenger");
passenger.rideTick();
@ -504,7 +513,7 @@
gameprofilerfiller.pop();
Iterator iterator = passenger.getPassengers().iterator();
@@ -810,6 +1018,7 @@
@@ -810,6 +1025,7 @@
ServerChunkCache chunkproviderserver = this.getChunkSource();
if (!savingDisabled) {
@ -512,7 +521,7 @@
if (progressListener != null) {
progressListener.progressStartNoAbort(Component.translatable("menu.savingLevel"));
}
@@ -827,11 +1036,19 @@
@@ -827,11 +1043,19 @@
}
}
@ -533,7 +542,7 @@
}
DimensionDataStorage worldpersistentdata = this.getChunkSource().getDataStorage();
@@ -903,18 +1120,40 @@
@@ -903,18 +1127,40 @@
@Override
public boolean addFreshEntity(Entity entity) {
@ -577,7 +586,7 @@
}
}
@@ -939,41 +1178,93 @@
@@ -939,41 +1185,93 @@
this.entityManager.addNewEntity(player);
}
@ -676,7 +685,7 @@
while (iterator.hasNext()) {
ServerPlayer entityplayer = (ServerPlayer) iterator.next();
@@ -982,6 +1273,12 @@
@@ -982,6 +1280,12 @@
double d1 = (double) pos.getY() - entityplayer.getY();
double d2 = (double) pos.getZ() - entityplayer.getZ();
@ -689,7 +698,7 @@
if (d0 * d0 + d1 * d1 + d2 * d2 < 1024.0D) {
entityplayer.connection.send(new ClientboundBlockDestructionPacket(entityId, pos, progress));
}
@@ -1030,7 +1327,7 @@
@@ -1030,7 +1334,7 @@
@Override
public void levelEvent(@Nullable Player player, int eventId, BlockPos pos, int data) {
@ -698,7 +707,7 @@
}
public int getLogicalHeight() {
@@ -1060,7 +1357,18 @@
@@ -1060,7 +1364,18 @@
Iterator iterator = this.navigatingMobs.iterator();
while (iterator.hasNext()) {
@ -718,7 +727,7 @@
PathNavigation navigationabstract = entityinsentient.getNavigation();
if (navigationabstract.shouldRecomputePath(pos)) {
@@ -1086,11 +1394,13 @@
@@ -1086,11 +1401,13 @@
@Override
public void updateNeighborsAt(BlockPos pos, Block block) {
@ -732,7 +741,7 @@
this.neighborUpdater.updateNeighborsAtExceptFromFacing(pos, sourceBlock, (Direction) null, orientation);
}
@@ -1126,9 +1436,20 @@
@@ -1126,9 +1443,20 @@
@Override
public void explode(@Nullable Entity entity, @Nullable DamageSource damageSource, @Nullable ExplosionDamageCalculator behavior, double x, double y, double z, float power, boolean createFire, Level.ExplosionInteraction explosionSourceType, ParticleOptions smallParticle, ParticleOptions largeParticle, Holder<SoundEvent> soundEvent) {
@ -754,7 +763,7 @@
case NONE:
explosion_effect = Explosion.BlockInteraction.KEEP;
break;
@@ -1144,16 +1465,27 @@
@@ -1144,16 +1472,27 @@
case TRIGGER:
explosion_effect = Explosion.BlockInteraction.TRIGGER_BLOCK;
break;
@ -785,7 +794,7 @@
Iterator iterator = this.players.iterator();
while (iterator.hasNext()) {
@@ -1162,10 +1494,11 @@
@@ -1162,10 +1501,11 @@
if (entityplayer.distanceToSqr(vec3d) < 4096.0D) {
Optional<Vec3> optional = Optional.ofNullable((Vec3) serverexplosion.getHitPlayers().get(entityplayer));
@ -798,7 +807,7 @@
}
private Explosion.BlockInteraction getDestroyType(GameRules.Key<GameRules.BooleanValue> decayRule) {
@@ -1226,17 +1559,29 @@
@@ -1226,17 +1566,29 @@
}
public <T extends ParticleOptions> int sendParticles(T parameters, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double speed) {
@ -834,7 +843,7 @@
++j;
}
}
@@ -1292,7 +1637,7 @@
@@ -1292,7 +1644,7 @@
@Nullable
public BlockPos findNearestMapStructure(TagKey<Structure> structureTag, BlockPos pos, int radius, boolean skipReferencedStructures) {
@ -843,7 +852,7 @@
return null;
} else {
Optional<HolderSet.Named<Structure>> optional = this.registryAccess().lookupOrThrow(Registries.STRUCTURE).get(structureTag);
@@ -1334,11 +1679,22 @@
@@ -1334,11 +1686,22 @@
@Nullable
@Override
public MapItemSavedData getMapData(MapId id) {
@ -867,7 +876,7 @@
this.getServer().overworld().getDataStorage().set(id.key(), state);
}
@@ -1649,6 +2005,11 @@
@@ -1649,6 +2012,11 @@
@Override
public void blockUpdated(BlockPos pos, Block block) {
if (!this.isDebug()) {
@ -879,7 +888,7 @@
this.updateNeighborsAt(pos, block);
}
@@ -1668,12 +2029,12 @@
@@ -1668,12 +2036,12 @@
}
public boolean isFlat() {
@ -894,7 +903,7 @@
}
@Nullable
@@ -1696,7 +2057,7 @@
@@ -1696,7 +2064,7 @@
private static <T> String getTypeCount(Iterable<T> items, Function<T, String> classifier) {
try {
Object2IntOpenHashMap<String> object2intopenhashmap = new Object2IntOpenHashMap();
@ -903,7 +912,7 @@
while (iterator.hasNext()) {
T t0 = iterator.next();
@@ -1705,7 +2066,7 @@
@@ -1705,7 +2073,7 @@
object2intopenhashmap.addTo(s, 1);
}
@ -912,7 +921,7 @@
String s1 = (String) entry.getKey();
return s1 + ":" + entry.getIntValue();
@@ -1717,6 +2078,7 @@
@@ -1717,6 +2085,7 @@
@Override
public LevelEntityGetter<Entity> getEntities() {
@ -920,7 +929,7 @@
return this.entityManager.getEntityGetter();
}
@@ -1802,6 +2164,17 @@
@@ -1802,6 +2171,17 @@
return this.serverLevelData.getGameRules();
}
@ -938,7 +947,7 @@
@Override
public CrashReportCategory fillReportDetails(CrashReport report) {
CrashReportCategory crashreportsystemdetails = super.fillReportDetails(report);
@@ -1836,6 +2209,7 @@
@@ -1836,6 +2216,7 @@
}
public void onTrackingStart(Entity entity) {
@ -946,7 +955,7 @@
ServerLevel.this.getChunkSource().addEntity(entity);
if (entity instanceof ServerPlayer entityplayer) {
ServerLevel.this.players.add(entityplayer);
@@ -1864,9 +2238,52 @@
@@ -1864,9 +2245,52 @@
}
entity.updateDynamicGameEventListener(DynamicGameEventListener::add);
@ -999,7 +1008,7 @@
ServerLevel.this.getChunkSource().removeEntity(entity);
if (entity instanceof ServerPlayer entityplayer) {
ServerLevel.this.players.remove(entityplayer);
@@ -1895,6 +2312,15 @@
@@ -1895,6 +2319,15 @@
}
entity.updateDynamicGameEventListener(DynamicGameEventListener::remove);

177
paper-server/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java Normal file
View file

@ -0,0 +1,177 @@
package com.destroystokyo.paper.io;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.mojang.datafixers.util.Pair;
import it.unimi.dsi.fastutil.longs.Long2IntMap;
import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap;
import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
import net.minecraft.world.level.ChunkPos;
import net.minecraft.world.level.Level;
public class SyncLoadFinder {
public static final boolean ENABLED = Boolean.getBoolean("paper.debug-sync-loads");
private static final WeakHashMap<Level, Object2ObjectOpenHashMap<ThrowableWithEquals, SyncLoadInformation>> SYNC_LOADS = new WeakHashMap<>();
private static final class SyncLoadInformation {
public int times;
public final Long2IntOpenHashMap coordinateTimes = new Long2IntOpenHashMap();
}
public static void clear() {
SYNC_LOADS.clear();
}
public static void logSyncLoad(final Level world, final int chunkX, final int chunkZ) {
if (!ENABLED) {
return;
}
final ThrowableWithEquals stacktrace = new ThrowableWithEquals(Thread.currentThread().getStackTrace());
SYNC_LOADS.compute(world, (final Level keyInMap, Object2ObjectOpenHashMap<ThrowableWithEquals, SyncLoadInformation> map) -> {
if (map == null) {
map = new Object2ObjectOpenHashMap<>();
}
map.compute(stacktrace, (ThrowableWithEquals keyInMap0, SyncLoadInformation valueInMap) -> {
if (valueInMap == null) {
valueInMap = new SyncLoadInformation();
}
++valueInMap.times;
valueInMap.coordinateTimes.compute(ChunkPos.asLong(chunkX, chunkZ), (Long keyInMap1, Integer valueInMap1) -> {
return valueInMap1 == null ? Integer.valueOf(1) : Integer.valueOf(valueInMap1.intValue() + 1);
});
return valueInMap;
});
return map;
});
}
public static JsonObject serialize() {
final JsonObject ret = new JsonObject();
final JsonArray worldsData = new JsonArray();
for (final Map.Entry<Level, Object2ObjectOpenHashMap<ThrowableWithEquals, SyncLoadInformation>> entry : SYNC_LOADS.entrySet()) {
final Level world = entry.getKey();
final JsonObject worldData = new JsonObject();
worldData.addProperty("name", world.getWorld().getName());
final List<Pair<ThrowableWithEquals, SyncLoadInformation>> data = new ArrayList<>();
entry.getValue().forEach((ThrowableWithEquals stacktrace, SyncLoadInformation times) -> {
data.add(new Pair<>(stacktrace, times));
});
data.sort((Pair<ThrowableWithEquals, SyncLoadInformation> pair1, Pair<ThrowableWithEquals, SyncLoadInformation> pair2) -> {
return Integer.compare(pair2.getSecond().times, pair1.getSecond().times); // reverse order
});
final JsonArray stacktraces = new JsonArray();
for (Pair<ThrowableWithEquals, SyncLoadInformation> pair : data) {
final JsonObject stacktrace = new JsonObject();
stacktrace.addProperty("times", pair.getSecond().times);
final JsonArray traces = new JsonArray();
for (StackTraceElement element : pair.getFirst().stacktrace) {
traces.add(String.valueOf(element));
}
stacktrace.add("stacktrace", traces);
final JsonArray coordinates = new JsonArray();
for (Long2IntMap.Entry coordinate : pair.getSecond().coordinateTimes.long2IntEntrySet()) {
final long key = coordinate.getLongKey();
final int times = coordinate.getIntValue();
final ChunkPos chunkPos = new ChunkPos(key);
coordinates.add("(" + chunkPos.x + "," + chunkPos.z + "): " + times);
}
stacktrace.add("coordinates", coordinates);
stacktraces.add(stacktrace);
}
worldData.add("stacktraces", stacktraces);
worldsData.add(worldData);
}
ret.add("worlds", worldsData);
return ret;
}
static final class ThrowableWithEquals {
private final StackTraceElement[] stacktrace;
private final int hash;
public ThrowableWithEquals(final StackTraceElement[] stacktrace) {
this.stacktrace = stacktrace;
this.hash = ThrowableWithEquals.hash(stacktrace);
}
public static int hash(final StackTraceElement[] stacktrace) {
int hash = 0;
for (int i = 0; i < stacktrace.length; ++i) {
hash *= 31;
hash += stacktrace[i].hashCode();
}
return hash;
}
@Override
public int hashCode() {
return this.hash;
}
@Override
public boolean equals(final Object obj) {
if (obj == null || obj.getClass() != this.getClass()) {
return false;
}
final ThrowableWithEquals other = (ThrowableWithEquals)obj;
final StackTraceElement[] otherStackTrace = other.stacktrace;
if (this.stacktrace.length != otherStackTrace.length || this.hash != other.hash) {
return false;
}
if (this == obj) {
return true;
}
for (int i = 0; i < this.stacktrace.length; ++i) {
if (!this.stacktrace[i].equals(otherStackTrace[i])) {
return false;
}
}
return true;
}
}
}

1
paper-server/src/main/java/io/papermc/paper/command/PaperCommand.java
View file

@ -38,6 +38,7 @@ public final class PaperCommand extends Command {
commands.put(Set.of("reload"), new ReloadCommand());
commands.put(Set.of("version"), new VersionCommand());
commands.put(Set.of("dumpplugins"), new DumpPluginsCommand());
commands.put(Set.of("syncloadinfo"), new SyncLoadInfoCommand());
return commands.entrySet().stream()
.flatMap(entry -> entry.getKey().stream().map(s -> Map.entry(s, entry.getValue())))

88
paper-server/src/main/java/io/papermc/paper/command/subcommands/SyncLoadInfoCommand.java Normal file
View file

@ -0,0 +1,88 @@
package io.papermc.paper.command.subcommands;
import com.destroystokyo.paper.io.SyncLoadFinder;
import com.google.gson.JsonObject;
import com.google.gson.internal.Streams;
import com.google.gson.stream.JsonWriter;
import io.papermc.paper.command.CommandUtil;
import io.papermc.paper.command.PaperSubcommand;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.io.StringWriter;
import java.nio.charset.StandardCharsets;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.List;
import net.kyori.adventure.text.event.ClickEvent;
import net.kyori.adventure.text.event.HoverEvent;
import net.minecraft.server.MinecraftServer;
import org.bukkit.command.CommandSender;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.framework.qual.DefaultQualifier;
import static net.kyori.adventure.text.Component.text;
import static net.kyori.adventure.text.format.NamedTextColor.GRAY;
import static net.kyori.adventure.text.format.NamedTextColor.GREEN;
import static net.kyori.adventure.text.format.NamedTextColor.RED;
import static net.kyori.adventure.text.format.NamedTextColor.WHITE;
@DefaultQualifier(NonNull.class)
public final class SyncLoadInfoCommand implements PaperSubcommand {
@Override
public boolean execute(final CommandSender sender, final String subCommand, final String[] args) {
this.doSyncLoadInfo(sender, args);
return true;
}
@Override
public List<String> tabComplete(final CommandSender sender, final String subCommand, final String[] args) {
return CommandUtil.getListMatchingLast(sender, args, "clear");
}
private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss");
private void doSyncLoadInfo(final CommandSender sender, final String[] args) {
if (!SyncLoadFinder.ENABLED) {
String systemFlag = "-Dpaper.debug-sync-loads=true";
sender.sendMessage(text().color(RED).append(text("This command requires the server startup flag '")).append(
text(systemFlag, WHITE).clickEvent(ClickEvent.copyToClipboard(systemFlag))
.hoverEvent(HoverEvent.showText(text("Click to copy the system flag")))).append(
text("' to be set.")));
return;
}
if (args.length > 0 && args[0].equals("clear")) {
SyncLoadFinder.clear();
sender.sendMessage(text("Sync load data cleared.", GRAY));
return;
}
File file = new File(new File(new File("."), "debug"),
"sync-load-info-" + FORMATTER.format(LocalDateTime.now()) + ".txt");
file.getParentFile().mkdirs();
sender.sendMessage(text("Writing sync load info to " + file, GREEN));
try {
final JsonObject data = SyncLoadFinder.serialize();
StringWriter stringWriter = new StringWriter();
JsonWriter jsonWriter = new JsonWriter(stringWriter);
jsonWriter.setIndent(" ");
jsonWriter.setLenient(false);
Streams.write(data, jsonWriter);
try (
PrintStream out = new PrintStream(new FileOutputStream(file), false, StandardCharsets.UTF_8)
) {
out.print(stringWriter);
}
sender.sendMessage(text("Successfully written sync load information!", GREEN));
} catch (Throwable thr) {
sender.sendMessage(text("Failed to write sync load information! See the console for more info.", RED));
MinecraftServer.LOGGER.warn("Error occurred while dumping sync chunk load info", thr);
}
}
}