/
BukkitExecutor.java
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/
BukkitExecutor.java
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package com.bgsoftware.superiorskyblock.core.threads;
import com.bgsoftware.superiorskyblock.SuperiorSkyblockPlugin;
import com.bgsoftware.superiorskyblock.core.logging.Log;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import org.bukkit.Bukkit;
import org.bukkit.scheduler.BukkitTask;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import java.util.function.Function;
public class BukkitExecutor {
private static SuperiorSkyblockPlugin plugin;
private static ExecutorService databaseExecutor;
private static boolean shutdown = false;
private static boolean syncDatabaseCalls = false;
private static boolean syncBukkitCalls = false;
private BukkitExecutor() {
}
public static void init(SuperiorSkyblockPlugin plugin) {
BukkitExecutor.plugin = plugin;
databaseExecutor = Executors.newSingleThreadExecutor(new ThreadFactoryBuilder().setNameFormat("SuperiorSkyblock Database Thread").build());
}
public static void ensureMain(Runnable runnable) {
if (ensureNotShudown())
return;
if (!syncBukkitCalls && !Bukkit.isPrimaryThread()) {
sync(runnable);
} else {
runnable.run();
}
}
public static BukkitTask sync(Runnable runnable) {
return sync(runnable, 0);
}
public static BukkitTask sync(Runnable runnable, long delay) {
if (ensureNotShudown())
return null;
if (syncBukkitCalls) {
runnable.run();
return null;
} else {
return Bukkit.getScheduler().runTaskLater(plugin, runnable, delay);
}
}
public static void data(Runnable runnable) {
if (ensureNotShudown())
return;
if (syncDatabaseCalls) {
runnable.run();
} else {
databaseExecutor.execute(runnable);
}
}
public static boolean isDataThread() {
return syncDatabaseCalls || Thread.currentThread().getName().equals("SuperiorSkyblock Database Thread");
}
public static void async(Runnable runnable) {
if (ensureNotShudown())
return;
if (syncBukkitCalls) {
runnable.run();
} else {
Bukkit.getScheduler().runTaskAsynchronously(plugin, runnable);
}
}
public static void async(Runnable runnable, long delay) {
if (ensureNotShudown())
return;
if (syncBukkitCalls) {
runnable.run();
} else {
Bukkit.getScheduler().runTaskLaterAsynchronously(plugin, runnable, delay);
}
}
public static void asyncTimer(Runnable runnable, long delay) {
if (ensureNotShudown())
return;
Bukkit.getScheduler().runTaskTimerAsynchronously(plugin, runnable, delay, delay);
}
public static void timer(Runnable runnable, long delay) {
if (ensureNotShudown())
return;
Bukkit.getScheduler().runTaskTimer(plugin, runnable, delay, delay);
}
public static NestedTask<Void> createTask() {
return new NestedTask<Void>().complete();
}
public static void prepareDisable() {
syncDatabaseCalls = true;
syncBukkitCalls = true;
}
public static void close() {
try {
shutdown = true;
Log.info("Shutting down database executor");
shutdownAndAwaitTermination();
} catch (Exception error) {
Log.error(error, "An unexpected error occurred while shutting down database executor:");
}
}
private static boolean ensureNotShudown() {
if (shutdown) {
new RuntimeException("Tried to call BukkitExecutor after it was shut down").printStackTrace();
return true;
}
return false;
}
private static void shutdownAndAwaitTermination() {
databaseExecutor.shutdown(); // Disable new tasks from being submitted
try {
// Wait a while for existing tasks to terminate
if (!databaseExecutor.awaitTermination(60, TimeUnit.SECONDS)) {
databaseExecutor.shutdownNow(); // Cancel currently executing tasks
// Wait a while for tasks to respond to being cancelled
if (!databaseExecutor.awaitTermination(60, TimeUnit.SECONDS))
System.err.println("Pool did not terminate");
}
} catch (InterruptedException ie) {
// (Re-)Cancel if current thread also interrupted
databaseExecutor.shutdownNow();
// Preserve interrupt status
Thread.currentThread().interrupt();
}
}
public static class NestedTask<T> {
private final CompletableFuture<T> value = new CompletableFuture<>();
NestedTask() {
}
public <R> NestedTask<R> runSync(Function<T, R> function) {
NestedTask<R> nestedTask = new NestedTask<>();
if (syncBukkitCalls) {
nestedTask.value.complete(function.apply(value.join()));
} else {
value.whenComplete((value, ex) -> BukkitExecutor.ensureMain(() -> nestedTask.value.complete(function.apply(value))));
}
return nestedTask;
}
public NestedTask<Void> runSync(Consumer<T> consumer) {
NestedTask<Void> nestedTask = new NestedTask<>();
if (syncBukkitCalls) {
consumer.accept(value.join());
nestedTask.value.complete(null);
} else {
value.whenComplete((value, ex) -> BukkitExecutor.ensureMain(() -> {
consumer.accept(value);
nestedTask.value.complete(null);
}));
}
return nestedTask;
}
public <R> NestedTask<R> runAsync(Function<T, R> function) {
NestedTask<R> nestedTask = new NestedTask<>();
if (syncBukkitCalls) {
nestedTask.value.complete(function.apply(value.join()));
} else {
value.whenComplete((value, ex) -> BukkitExecutor.async(() -> nestedTask.value.complete(function.apply(value))));
}
return nestedTask;
}
public NestedTask<Void> runAsync(Consumer<T> consumer) {
NestedTask<Void> nestedTask = new NestedTask<>();
if (syncBukkitCalls) {
consumer.accept(value.join());
nestedTask.value.complete(null);
} else {
value.whenComplete((value, ex) -> BukkitExecutor.async(() -> {
consumer.accept(value);
nestedTask.value.complete(null);
}));
}
return nestedTask;
}
private NestedTask<T> complete() {
value.complete(null);
return this;
}
}
}