ems/boco/src/main/java/org/onap/vfc/nfvo/emsdriver/collector/TaskThreadService.java

   1 /**
   2  * Copyright 2017 BOCO Corporation.  CMCC Technologies Co., Ltd
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.onap.vfc.nfvo.emsdriver.collector;
  17
  18 import java.util.concurrent.BlockingQueue;
  19 import java.util.concurrent.ExecutorService;
  20 import java.util.concurrent.Executors;
  21 import java.util.concurrent.LinkedBlockingQueue;
  22 import java.util.concurrent.TimeUnit;
  23
  24 import org.apache.commons.logging.Log;
  25 import org.apache.commons.logging.LogFactory;
  26 import org.onap.vfc.nfvo.emsdriver.commons.constant.Constant;
  27 import org.onap.vfc.nfvo.emsdriver.commons.model.CollectMsg;
  28 import org.onap.vfc.nfvo.emsdriver.commons.utils.StringUtil;
  29
  30
  31
  32 public class TaskThreadService extends Thread {
  33
  34         public  Log log = LogFactory.getLog(TaskThreadService.class);
  35         private final ExecutorService pool;
  36
  37         private BlockingQueue<CollectMsg> queue = new  LinkedBlockingQueue<CollectMsg>();
  38         private boolean startFlag = true;
  39
  40         public static TaskThreadService getInstance(int poolSize) {
  41                         return new TaskThreadService(poolSize);
  42         }
  43         private TaskThreadService(int poolSize) {
  44                 pool = Executors.newFixedThreadPool(poolSize);
  45         }
  46
  47         private long timeStamp = System.currentTimeMillis();
  48         public void run() { // run the service
  49                 try {
  50                         while(startFlag) {
  51
  52                                 try {
  53                                         if(System.currentTimeMillis() - timeStamp > Constant.ONEMINUTE){
  54                                                 timeStamp = System.currentTimeMillis();
  55                                                 log.debug("task queue size " + queue.size());
  56                                         }
  57
  58                                         CollectMsg data = receive();
  59                                         if(data == null){
  60                                                 continue;
  61                                         }
  62
  63                                         pool.execute(new TaskThread(data));
  64
  65
  66                                 } catch (Exception e) {
  67                                         log.error("collect task process fail!"+StringUtil.getStackTrace(e));
  68                                 }
  69
  70                         }
  71
  72                 } catch (Exception ex) {
  73                         log.error("task ThreadService error "+StringUtil.getStackTrace(ex));
  74                         pool.shutdown();
  75                 }
  76                 log.error("Task ThreadService exit");
  77         }
  78
  79
  80
  81         public CollectMsg receive() {
  82                 try {
  83                         return queue.poll(100, TimeUnit.MILLISECONDS);
  84                 } catch (InterruptedException e) {
  85                         log.error("queue.poll is error"+StringUtil.getStackTrace(e));
  86                 }
  87                 return null;
  88         }
  89
  90
  91
  92         public void add(CollectMsg data){
  93                 try {
  94                         queue.put(data);
  95                 } catch (InterruptedException e) {
  96                         log.error("queue.put is error"+StringUtil.getStackTrace(e));
  97                 }
  98         }
  99
 100
 101         public int size(){
 102                 return queue.size();
 103         }
 104
 105         public void stopTask(){
 106                 startFlag = false;
 107         }
 108 }