[refractor]remove threadpool in NettyServerHandler

rpc-framework-common/src/main/java/github/javaguide/utils/concurrent/threadpool/ThreadPoolFactoryUtils.java

@@ -7,6 +7,8 @@ import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
 import java.util.concurrent.Semaphore;
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.ThreadPoolExecutor;
@@ -64,7 +66,7 @@ public final class ThreadPoolFactoryUtils {
             log.info("shut down thread pool [{}] [{}]", entry.getKey(), executorService.isTerminated());
             try {
                 executorService.awaitTermination(10, TimeUnit.SECONDS);
-            } catch (InterruptedException ie) {
+            } catch (InterruptedException e) {
                 log.error("Thread pool never terminated");
                 executorService.shutdownNow();
             }
@@ -98,4 +100,20 @@ public final class ThreadPoolFactoryUtils {
         return Executors.defaultThreadFactory();
     }
 
+    /**
+     * 打印线程池的状态
+     *
+     * @param threadPool 线程池对象
+     */
+    public static void printThreadPoolStatus(ThreadPoolExecutor threadPool) {
+        ScheduledExecutorService scheduledExecutorService = new ScheduledThreadPoolExecutor(1, createThreadFactory("print-thread-pool-status", false));
+        scheduledExecutorService.scheduleAtFixedRate(() -> {
+            log.info("============ThreadPool Status=============");
+            log.info("ThreadPool Size: [{}]", threadPool.getPoolSize());
+            log.info("Active Threads: [{}]", threadPool.getActiveCount());
+            log.info("Number of Tasks : [{}]", threadPool.getCompletedTaskCount());
+            log.info("Number of Tasks in Queue: {}", threadPool.getQueue().size());
+            log.info("===========================================");
+        }, 0, 1, TimeUnit.SECONDS);
+    }
 }

rpc-framework-simple/src/main/java/github/javaguide/remoting/transport/netty/server/NettyServerHandler.java

@@ -4,8 +4,6 @@ import github.javaguide.factory.SingletonFactory;
 import github.javaguide.handler.RpcRequestHandler;
 import github.javaguide.remoting.dto.RpcRequest;
 import github.javaguide.remoting.dto.RpcResponse;
-import github.javaguide.utils.concurrent.threadpool.CustomThreadPoolConfig;
-import github.javaguide.utils.concurrent.threadpool.ThreadPoolFactoryUtils;
 import io.netty.channel.ChannelFutureListener;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
@@ -13,8 +11,6 @@ import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.util.ReferenceCountUtil;
 import lombok.extern.slf4j.Slf4j;
 
-import java.util.concurrent.ExecutorService;
-
 /**
  * 自定义服务端的 ChannelHandler 来处理客户端发过来的数据。
  * <p>
@@ -27,20 +23,14 @@ import java.util.concurrent.ExecutorService;
 @Slf4j
 public class NettyServerHandler extends ChannelInboundHandlerAdapter {
 
-    private static final String THREAD_NAME_PREFIX = "netty-server-handler-rpc-pool";
     private final RpcRequestHandler rpcRequestHandler;
-    private final ExecutorService threadPool;
 
     public NettyServerHandler() {
         this.rpcRequestHandler = SingletonFactory.getInstance(RpcRequestHandler.class);
-        CustomThreadPoolConfig customThreadPoolConfig = new CustomThreadPoolConfig();
-        customThreadPoolConfig.setCorePoolSize(6);
-        this.threadPool = ThreadPoolFactoryUtils.createCustomThreadPoolIfAbsent(THREAD_NAME_PREFIX, customThreadPoolConfig);
     }
 
     @Override
     public void channelRead(ChannelHandlerContext ctx, Object msg) {
-        threadPool.execute(() -> {
         try {
             log.info("server receive msg: [{}] ", msg);
             RpcRequest rpcRequest = (RpcRequest) msg;
@@ -58,8 +48,6 @@ public class NettyServerHandler extends ChannelInboundHandlerAdapter {
             //确保 ByteBuf 被释放，不然可能会有内存泄露问题
             ReferenceCountUtil.release(msg);
         }
-        });
-
     }
 
     @Override