| /* |
| * 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.hadoop.hbase.thrift; |
| |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * A ThreadPoolExecutor customized for working with HBase thrift to update metrics before and after |
| * the execution of a task. |
| */ |
| |
| @InterfaceAudience.Private |
| public class THBaseThreadPoolExecutor extends ThreadPoolExecutor { |
| |
| private ThriftMetrics metrics; |
| |
| public THBaseThreadPoolExecutor(int corePoolSize, int maxPoolSize, long keepAliveTime, |
| TimeUnit unit, BlockingQueue<Runnable> workQueue, ThriftMetrics metrics) { |
| this(corePoolSize, maxPoolSize, keepAliveTime, unit, workQueue, null, metrics); |
| } |
| |
| public THBaseThreadPoolExecutor(int corePoolSize, int maxPoolSize, long keepAliveTime, |
| TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory, |
| ThriftMetrics metrics) { |
| super(corePoolSize, maxPoolSize, keepAliveTime, unit, workQueue); |
| if (threadFactory != null) { |
| setThreadFactory(threadFactory); |
| } |
| this.metrics = metrics; |
| } |
| |
| @Override |
| protected void beforeExecute(Thread t, Runnable r) { |
| super.beforeExecute(t, r); |
| metrics.incActiveWorkerCount(); |
| } |
| |
| @Override |
| protected void afterExecute(Runnable r, Throwable t) { |
| metrics.decActiveWorkerCount(); |
| super.afterExecute(r, t); |
| } |
| } |