geforkt von Mirrors/Paper
119 Zeilen
6.0 KiB
Diff
119 Zeilen
6.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: underscore11code <minecrafter11mrt@gmail.com>
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Date: Fri, 23 Jul 2021 23:01:42 -0700
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Subject: [PATCH] Add System.out/err catcher
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diff --git a/src/main/java/io/papermc/paper/logging/SysoutCatcher.java b/src/main/java/io/papermc/paper/logging/SysoutCatcher.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..a8e813ca89b033f061e695288b3383bdcf128531
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/logging/SysoutCatcher.java
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@@ -0,0 +1,94 @@
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+package io.papermc.paper.logging;
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+
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+import org.bukkit.Bukkit;
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+import org.bukkit.plugin.java.JavaPlugin;
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+import org.jetbrains.annotations.NotNull;
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+import org.jetbrains.annotations.Nullable;
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+
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+import java.io.OutputStream;
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+import java.io.PrintStream;
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+import java.util.Objects;
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+import java.util.concurrent.ConcurrentHashMap;
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+import java.util.concurrent.ConcurrentMap;
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+import java.util.concurrent.TimeUnit;
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+import java.util.logging.Level;
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+
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+public final class SysoutCatcher {
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+ private static final boolean SUPPRESS_NAGS = Boolean.getBoolean("io.papermc.paper.suppress.sout.nags");
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+ // Nanoseconds between nag at most; if interval is caught first, this is reset.
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+ // <= 0 for disabling.
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+ private static final long NAG_TIMEOUT = TimeUnit.MILLISECONDS.toNanos(
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+ Long.getLong("io.papermc.paper.sout.nags.timeout", TimeUnit.MINUTES.toMillis(5L)));
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+ // Count since last nag; if timeout is first, this is reset.
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+ // <= 0 for disabling.
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+ private static final long NAG_INTERVAL = Long.getLong("io.papermc.paper.sout.nags.interval", 200L);
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+
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+ // We don't particularly care about how correct this is at any given moment; let's do it on a best attempt basis.
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+ // The records are also pretty small, so let's just go for a size of 64 to start...
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+ //
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+ // Content: Plugin name => nag object
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+ // Why plugin name?: This doesn't store a reference to the plugin; keeps the reload ability.
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+ // Why not clean on reload?: Effort.
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+ private final ConcurrentMap<String, PluginNag> nagRecords = new ConcurrentHashMap<>(64);
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+
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+ public SysoutCatcher() {
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+ System.setOut(new WrappedOutStream(System.out, Level.INFO, "[STDOUT] "));
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+ System.setErr(new WrappedOutStream(System.err, Level.SEVERE, "[STDERR] "));
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+ }
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+
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+ private final class WrappedOutStream extends PrintStream {
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+ private static final StackWalker STACK_WALKER = StackWalker.getInstance(StackWalker.Option.RETAIN_CLASS_REFERENCE);
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+ private final Level level;
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+ private final String prefix;
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+
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+ public WrappedOutStream(@NotNull final OutputStream out, final Level level, final String prefix) {
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+ super(out);
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+ this.level = level;
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+ this.prefix = prefix;
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+ }
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+
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+ @Override
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+ public void println(@Nullable final String line) {
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+ final Class<?> clazz = STACK_WALKER.getCallerClass();
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+ try {
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+ final JavaPlugin plugin = JavaPlugin.getProvidingPlugin(clazz);
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+
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+ // Instead of just printing the message, send it to the plugin's logger
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+ plugin.getLogger().log(this.level, this.prefix + line);
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+
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+ if (SysoutCatcher.SUPPRESS_NAGS) {
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+ return;
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+ }
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+ if (SysoutCatcher.NAG_INTERVAL > 0 || SysoutCatcher.NAG_TIMEOUT > 0) {
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+ final PluginNag nagRecord = SysoutCatcher.this.nagRecords.computeIfAbsent(plugin.getName(), k -> new PluginNag());
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+ final boolean hasTimePassed = SysoutCatcher.NAG_TIMEOUT > 0
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+ && (nagRecord.lastNagTimestamp == Long.MIN_VALUE
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+ || nagRecord.lastNagTimestamp + SysoutCatcher.NAG_TIMEOUT <= System.nanoTime());
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+ final boolean hasMessagesPassed = SysoutCatcher.NAG_INTERVAL > 0
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+ && (nagRecord.messagesSinceNag == Long.MIN_VALUE
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+ || ++nagRecord.messagesSinceNag >= SysoutCatcher.NAG_INTERVAL);
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+ if (!hasMessagesPassed && !hasTimePassed) {
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+ return;
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+ }
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+ nagRecord.lastNagTimestamp = System.nanoTime();
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+ nagRecord.messagesSinceNag = 0;
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+ }
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+ Bukkit.getLogger().warning(
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+ String.format("Nag author(s): '%s' of '%s' about their usage of System.out/err.print. "
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+ + "Please use your plugin's logger instead (JavaPlugin#getLogger).",
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+ plugin.getPluginMeta().getAuthors(),
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+ plugin.getPluginMeta().getDisplayName())
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+ );
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+ } catch (final IllegalArgumentException | IllegalStateException e) {
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+ // If anything happens, the calling class doesn't exist, there is no JavaPlugin that "owns" the calling class, etc
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+ // Just print out normally, with some added information
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+ Bukkit.getLogger().log(this.level, String.format("%s[%s] %s", this.prefix, clazz.getName(), line));
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+ }
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+ }
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+ }
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+
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+ private static class PluginNag {
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+ private long lastNagTimestamp = Long.MIN_VALUE;
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+ private long messagesSinceNag = Long.MIN_VALUE;
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+ }
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+}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index f3f15463332056ae108e49e3f72bbaa061ed7270..0b422ba3241b31ad9e4f227bcb5033df2545d84b 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -308,6 +308,7 @@ public final class CraftServer implements Server {
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public int reloadCount;
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private final io.papermc.paper.datapack.PaperDatapackManager datapackManager; // Paper
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public static Exception excessiveVelEx; // Paper - Velocity warnings
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+ private final io.papermc.paper.logging.SysoutCatcher sysoutCatcher = new io.papermc.paper.logging.SysoutCatcher(); // Paper
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static {
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ConfigurationSerialization.registerClass(CraftOfflinePlayer.class);
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