潘钊 / bsth_control · Commits

Commit 3e02e6978e7df0608d05fa2153cb7a3b3b74ed9c

Authored by 潘钊
1 parent d559b01b

megr .....

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Showing 1 changed file with 17 additions and 8 deletions
src/main/java/com/bsth/data/gpsdata/arrival/GpsRealAnalyse.java
  View file @3e02e69
... ... @@ -41,7 +41,8 @@ public class GpsRealAnalyse {
41 41 @Autowired
42 42 GpsRealData gpsRealData;
43 43  
44   - static ExecutorService threadPool = Executors.newFixedThreadPool(25);
  44 + final static int POOL_SIZE = 20;
  45 + static ExecutorService threadPool = Executors.newFixedThreadPool(POOL_SIZE + 1);
45 46  
46 47 public static long st;
47 48 public static CountDownLatch count;
... ... @@ -60,19 +61,27 @@ public class GpsRealAnalyse {
60 61 return;
61 62 st = System.currentTimeMillis();
62 63  
63   - //按线路分组gps
  64 + //按设备号分组数据（一个设备号的多条数据，必须在一个线程里跑）
64 65 ArrayListMultimap multimap = ArrayListMultimap.create();
65 66 for (GpsEntity gps : list) {
66   - multimap.put(gps.getLineId(), gps);
  67 + multimap.put(gps.getDeviceId(), gps);
67 68 }
68   -
69   - Set<String> ks = multimap.keySet();
70   -
  69 + List<String> deviceList = new ArrayList<>(multimap.keySet());
  70 +
  71 + //数据均分给20个线程
  72 + ArrayListMultimap dataListMap = ArrayListMultimap.create();
  73 + int size = deviceList.size(), threadIndex=0, threadSize = size / POOL_SIZE;
  74 + for(int i = 0; i < size; i++){
  75 + if(i % threadSize == 0)
  76 + threadIndex ++;
  77 + dataListMap.putAll(threadIndex, multimap.get(deviceList.get(i)));
  78 + }
  79 + Set<Integer> ks = dataListMap.keySet();
71 80 logger.info("analyse gps size: " + list.size() + ", ks: " + ks.size());
72 81 count = new CountDownLatch(ks.size());
73 82  
74   - for (String lineCode : ks) {
75   - threadPool.execute(new SignalHandleThread(multimap.get(lineCode), count));
  83 + for (Integer index : ks) {
  84 + threadPool.execute(new SignalHandleThread(dataListMap.get(index), count));
76 85 }
77 86  
78 87 //等待子线程结束
... ...