[GitHub] [eventmesh] Alonexc commented on a diff in pull request #4063: [ISSUE #4062]Implement the method printRetryThreadPoolState() in EventMeshTcpRetryer

["Alonexc (via GitHub)" <gi...@apache.org>]

Alonexc commented on code in PR #4063:
URL: https://github.com/apache/eventmesh/pull/4063#discussion_r1213866713


##########
eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/util/ThreadPoolHelper.java:
##########
@@ -0,0 +1,70 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.eventmesh.runtime.util;
+
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class ThreadPoolHelper {
+
+    public static void printState(ThreadPoolExecutor threadPool) {
+        if (threadPool == null) {
+            log.warn("No thread pool is provided!");
+            return;
+        }
+
+        boolean shutdown = threadPool.isShutdown();
+        boolean terminating = threadPool.isTerminating();
+        boolean terminated = threadPool.isTerminated();
+        int activeCount = threadPool.getActiveCount();
+        long completedTaskCount = threadPool.getCompletedTaskCount();
+        long taskCount = threadPool.getTaskCount();
+        int queueSize = threadPool.getQueue().size();
+        int corePoolSize = threadPool.getCorePoolSize();
+        int maximumPoolSize = threadPool.getMaximumPoolSize();
+        long keepAliveTime = threadPool.getKeepAliveTime(TimeUnit.MILLISECONDS);
+        String rejectPolicy = threadPool.getRejectedExecutionHandler().getClass().getSimpleName();
+        if (log.isInfoEnabled()) {
+            log.info("The ThreadPool's state==================");
+            log.info("Shutdown | Terminating | Terminated: {} | {} | {}" + shutdown, terminating, terminated);
+            log.info("Active Threads: " + activeCount);
+            log.info("Completed Tasks / Tasks: {} / {}" + completedTaskCount, taskCount);
+            log.info("Queue Size: " + queueSize);
+            log.info("Core Pool Size: " + corePoolSize);
+            log.info("Maximum Pool Size: " + maximumPoolSize);
+            log.info("Keep Alive Time(ms): " + keepAliveTime);
+            log.info("The rejection policy: " + rejectPolicy);
+            log.info("========================================");
+        } else {
+            System.out.print("The ThreadPool's state==================\n");

Review Comment:
   I don't think it's necessary to use `System.out` printing here.



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