Feature: 线程池报警动作通过发布事件的方式异步化.

hippo4j-spring-boot-starter/src/main/java/com/github/dynamic/threadpool/starter/core/DynamicThreadPoolExecutor.java

@@ -2,6 +2,7 @@ package com.github.dynamic.threadpool.starter.core;
 
 import com.github.dynamic.threadpool.starter.alarm.ThreadPoolAlarm;
 import com.github.dynamic.threadpool.starter.alarm.ThreadPoolAlarmManage;
+import com.github.dynamic.threadpool.starter.event.EventExecutor;
 import lombok.NoArgsConstructor;
 import lombok.NonNull;
 
@@ -23,7 +24,7 @@ import static com.github.dynamic.threadpool.common.constant.Constants.MAP_INITIA
  * @author chen.ma
  * @date 2021/7/8 21:47
  */
-public final class DynamicThreadPoolExecutor extends ThreadPoolExecutor {
+public class DynamicThreadPoolExecutor extends ThreadPoolExecutor {
 
     private final AtomicInteger rejectCount = new AtomicInteger();
     private final AtomicInteger ctl = new AtomicInteger(ctlOf(RUNNING, 0));
@@ -140,9 +141,7 @@ public final class DynamicThreadPoolExecutor extends ThreadPoolExecutor {
         return this.threadPoolId;
     }
 
-    private final class Worker
-            extends AbstractQueuedSynchronizer
-            implements Runnable {
+    private final class Worker extends AbstractQueuedSynchronizer implements Runnable {
 
         private static final long serialVersionUID = 6138294804551838833L;
 
@@ -309,7 +308,9 @@ public final class DynamicThreadPoolExecutor extends ThreadPoolExecutor {
 
     final void reject(Runnable command) {
         rejectCount.incrementAndGet();
-        ThreadPoolAlarmManage.checkPoolRejectAlarm(this);
+        EventExecutor.publishEvent(
+                () -> ThreadPoolAlarmManage.checkPoolRejectAlarm(this)
+        );
         handler.rejectedExecution(command, this);
     }
 
@@ -362,7 +363,9 @@ public final class DynamicThreadPoolExecutor extends ThreadPoolExecutor {
             }
         }
 
-        ThreadPoolAlarmManage.checkPoolLivenessAlarm(core, this);
+        EventExecutor.publishEvent(
+                () -> ThreadPoolAlarmManage.checkPoolLivenessAlarm(core, this)
+        );
 
         boolean workerStarted = false;
         boolean workerAdded = false;
@@ -538,7 +541,9 @@ public final class DynamicThreadPoolExecutor extends ThreadPoolExecutor {
             c = ctl.get();
         }
         if (isRunning(c) && workQueue.offer(command)) {
-            ThreadPoolAlarmManage.checkPoolCapacityAlarm(this);
+            EventExecutor.publishEvent(
+                    () -> ThreadPoolAlarmManage.checkPoolCapacityAlarm(this)
+            );
             int recheck = ctl.get();
             if (!isRunning(recheck) && remove(command)) {
                 reject(command);

hippo4j-spring-boot-starter/src/main/java/com/github/dynamic/threadpool/starter/event/EventExecutor.java

@@ -0,0 +1,35 @@
+package com.github.dynamic.threadpool.starter.event;
+
+import com.github.dynamic.threadpool.common.function.NoArgsConsumer;
+import com.github.dynamic.threadpool.starter.toolkit.thread.QueueTypeEnum;
+import com.github.dynamic.threadpool.starter.toolkit.thread.ThreadPoolBuilder;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.ThreadPoolExecutor;
+
+/**
+ * 事件执行器.
+ *
+ * @author chen.ma
+ * @date 2021/11/8 23:44
+ */
+public class EventExecutor {
+
+    private static final ExecutorService EVENT_EXECUTOR = ThreadPoolBuilder.builder()
+            .threadFactory("event-executor")
+            .corePoolSize(Runtime.getRuntime().availableProcessors())
+            .maxPoolNum(Runtime.getRuntime().availableProcessors())
+            .workQueue(QueueTypeEnum.ARRAY_BLOCKING_QUEUE, 2048)
+            .rejected(new ThreadPoolExecutor.DiscardPolicy())
+            .build();
+
+    /**
+     * 发布事件.
+     *
+     * @param consumer
+     */
+    public static void publishEvent(NoArgsConsumer consumer) {
+        EVENT_EXECUTOR.execute(consumer::accept);
+    }
+
+}