SuppressedExceptionCollector.java

net.minecraft.server.SuppressedExceptionCollector

信息

• 全限定名：net.minecraft.server.SuppressedExceptionCollector
• 类型：public class
• 包：net.minecraft.server
• 源码路径：src/main/java/net/minecraft/server/SuppressedExceptionCollector.java
• 起始行号：L9
• 职责：

  TODO

字段/常量

• LATEST_ENTRY_COUNT

  • 类型: int
  • 修饰符: private static final
  • 源码定位: L10
  • 说明:

    TODO

• latestEntries

  • 类型: Queue<SuppressedExceptionCollector.LongEntry>
  • 修饰符: private final
  • 源码定位: L11
  • 说明:

    TODO

• entryCounts

  • 类型: Object2IntLinkedOpenHashMap<SuppressedExceptionCollector.ShortEntry>
  • 修饰符: private final
  • 源码定位: L12
  • 说明:

    TODO

内部类/嵌套类型

• net.minecraft.server.SuppressedExceptionCollector.LongEntry

  • 类型: record
  • 修饰符: private
  • 源码定位: L67
  • 说明:

    TODO

• net.minecraft.server.SuppressedExceptionCollector.ShortEntry

  • 类型: record
  • 修饰符: private
  • 源码定位: L70
  • 说明:

    TODO

构造器

• 无

方法

下面的方法块按源码顺序生成。

private static long currentTimeMs() @ L14

• 方法名：currentTimeMs
• 源码定位：L14
• 返回类型：long
• 修饰符：private static

参数:

• 无

说明:

TODO

public synchronized void addEntry(String location, Throwable throwable) @ L18

• 方法名：addEntry
• 源码定位：L18
• 返回类型：void
• 修饰符：public synchronized

参数:

• location: String
• throwable: Throwable

说明:

TODO

public synchronized String dump() @ L32

• 方法名：dump
• 源码定位：L32
• 返回类型：String
• 修饰符：public synchronized

参数:

• 无

说明:

TODO

代码

public class SuppressedExceptionCollector {
    private static final int LATEST_ENTRY_COUNT = 8;
    private final Queue<SuppressedExceptionCollector.LongEntry> latestEntries = new ArrayListDeque<>();
    private final Object2IntLinkedOpenHashMap<SuppressedExceptionCollector.ShortEntry> entryCounts = new Object2IntLinkedOpenHashMap<>();
 
    private static long currentTimeMs() {
        return System.currentTimeMillis();
    }
 
    public synchronized void addEntry(String location, Throwable throwable) {
        long now = currentTimeMs();
        String message = throwable.getMessage();
        this.latestEntries.add(new SuppressedExceptionCollector.LongEntry(now, location, (Class<? extends Throwable>)throwable.getClass(), message));
 
        while (this.latestEntries.size() > 8) {
            this.latestEntries.remove();
        }
 
        SuppressedExceptionCollector.ShortEntry key = new SuppressedExceptionCollector.ShortEntry(location, (Class<? extends Throwable>)throwable.getClass());
        int currentValue = this.entryCounts.getInt(key);
        this.entryCounts.putAndMoveToFirst(key, currentValue + 1);
    }
 
    public synchronized String dump() {
        long current = currentTimeMs();
        StringBuilder result = new StringBuilder();
        if (!this.latestEntries.isEmpty()) {
            result.append("\n\t\tLatest entries:\n");
 
            for (SuppressedExceptionCollector.LongEntry e : this.latestEntries) {
                result.append("\t\t\t")
                    .append(e.location)
                    .append(":")
                    .append(e.cls)
                    .append(": ")
                    .append(e.message)
                    .append(" (")
                    .append(current - e.timestampMs)
                    .append("ms ago)")
                    .append("\n");
            }
        }
 
        if (!this.entryCounts.isEmpty()) {
            if (result.isEmpty()) {
                result.append("\n");
            }
 
            result.append("\t\tEntry counts:\n");
 
            for (Entry<SuppressedExceptionCollector.ShortEntry> e : Object2IntMaps.fastIterable(this.entryCounts)) {
                result.append("\t\t\t").append(e.getKey().location).append(":").append(e.getKey().cls).append(" x ").append(e.getIntValue()).append("\n");
            }
        }
 
        return result.isEmpty() ? "~~NONE~~" : result.toString();
    }
 
    private record LongEntry(long timestampMs, String location, Class<? extends Throwable> cls, String message) {
    }
 
    private record ShortEntry(String location, Class<? extends Throwable> cls) {
    }
}

引用的其他类

• LoggedChatMessage
  • 引用位置: 方法调用
  • 关联成员: System.currentTimeMillis()