dubbo-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From GitBox <...@apache.org>
Subject [GitHub] beiwei30 commented on a change in pull request #1568: Extension: Enhanced Thread Pool
Date Mon, 09 Apr 2018 06:49:47 GMT
beiwei30 commented on a change in pull request #1568: Extension: Enhanced Thread Pool
URL: https://github.com/apache/incubator-dubbo/pull/1568#discussion_r179999993
 
 

 ##########
 File path: dubbo-common/src/main/java/com/alibaba/dubbo/common/threadpool/support/enhanced/EnhancedThreadPoolExecutor.java
 ##########
 @@ -0,0 +1,66 @@
+/*
+ * 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 com.alibaba.dubbo.common.threadpool.support.enhanced;
+
+import java.util.concurrent.RejectedExecutionHandler;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * Enhanced thread pool
+ */
+public class EnhancedThreadPoolExecutor extends ThreadPoolExecutor {
+
+    //task count
+    private final AtomicInteger submittedTaskCount = new AtomicInteger(0);
+
+    public EnhancedThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
TimeUnit unit, EnhancedTaskQueue<Runnable> workQueue, ThreadFactory threadFactory, RejectedExecutionHandler
handler) {
+        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory,
handler);
+    }
+
+    /**
+     * @return current tasks which are executed
+     */
+    public int getSubmittedTaskCount() {
+        return submittedTaskCount.get();
+    }
+
+    @Override
+    protected void afterExecute(Runnable r, Throwable t) {
+        submittedTaskCount.decrementAndGet();
+    }
+
+    @Override
+    public void execute(Runnable command) {
+        //do not increment in method beforeExecute!
+        submittedTaskCount.incrementAndGet();
+        try {
+            super.execute(command);
+        } catch (RejectedExecutionException rx) {
+            //retry to offer the task into queue .
 
 Review comment:
   add space after `//`

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

Mime
View raw message