/* * Copyright 1999-2011 Alibaba Group. * * Licensed 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.rpc.protocol.dubbo.status; import java.util.Map; import java.util.concurrent.ExecutorService; import java.util.concurrent.ThreadPoolExecutor; import com.alibaba.dubbo.common.Constants; import com.alibaba.dubbo.common.extension.Activate; import com.alibaba.dubbo.common.extension.ExtensionLoader; import com.alibaba.dubbo.common.status.Status; import com.alibaba.dubbo.common.status.StatusChecker; import com.alibaba.dubbo.common.store.DataStore; /** * ThreadPoolStatusChecker * * @author william.liangf */ @Activate public class ThreadPoolStatusChecker implements StatusChecker { public Status check() { DataStore dataStore = ExtensionLoader.getExtensionLoader(DataStore.class).getDefaultExtension(); Map<String, Object> executors = dataStore.get(Constants.EXECUTOR_SERVICE_COMPONENT_KEY); StringBuilder msg = new StringBuilder(); Status.Level level = Status.Level.OK; for(Map.Entry<String, Object> entry : executors.entrySet()) { String port = entry.getKey(); ExecutorService executor = (ExecutorService) entry.getValue(); if (executor != null && executor instanceof ThreadPoolExecutor) { ThreadPoolExecutor tp = (ThreadPoolExecutor) executor; boolean ok = tp.getActiveCount() < tp.getMaximumPoolSize() - 1; Status.Level lvl = Status.Level.OK; if(!ok) { level = Status.Level.WARN; lvl = Status.Level.WARN; } if(msg.length() > 0) { msg.append(";"); } msg.append("Pool status:" + lvl + ", max:" + tp.getMaximumPoolSize() + ", core:" + tp.getCorePoolSize() + ", largest:" + tp.getLargestPoolSize() + ", active:" + tp.getActiveCount() + ", task:" + tp.getTaskCount() + ", service port: " + port); } } return msg.length() == 0 ? new Status(Status.Level.UNKNOWN) : new Status(level, msg.toString()); } }