| 提交 | 用户 | 时间 | ||
| e7c126 | 1 | package com.xxl.job.admin.core.route.strategy; |
| H | 2 | |
| 3 | import com.xxl.job.admin.core.route.ExecutorRouter; | |
| 4 | import com.xxl.job.core.biz.model.ReturnT; | |
| 5 | import com.xxl.job.core.biz.model.TriggerParam; | |
| 6 | ||
| 7 | import java.util.List; | |
| 8 | import java.util.Random; | |
| 9 | import java.util.concurrent.ConcurrentHashMap; | |
| 10 | import java.util.concurrent.ConcurrentMap; | |
| 11 | import java.util.concurrent.atomic.AtomicInteger; | |
| 12 | ||
| 13 | /** | |
| 14 | * Created by xuxueli on 17/3/10. | |
| 15 | */ | |
| 16 | public class ExecutorRouteRound extends ExecutorRouter { | |
| 17 | ||
| 18 | private static ConcurrentMap<Integer, AtomicInteger> routeCountEachJob = new ConcurrentHashMap<>(); | |
| 19 | private static long CACHE_VALID_TIME = 0; | |
| 20 | ||
| 21 | private static int count(int jobId) { | |
| 22 | // cache clear | |
| 23 | if (System.currentTimeMillis() > CACHE_VALID_TIME) { | |
| 24 | routeCountEachJob.clear(); | |
| 25 | CACHE_VALID_TIME = System.currentTimeMillis() + 1000*60*60*24; | |
| 26 | } | |
| 27 | ||
| 28 | AtomicInteger count = routeCountEachJob.get(jobId); | |
| 29 | if (count == null || count.get() > 1000000) { | |
| 30 | // 初始化时主动Random一次，缓解首次压力 | |
| 31 | count = new AtomicInteger(new Random().nextInt(100)); | |
| 32 | } else { | |
| 33 | // count++ | |
| 34 | count.addAndGet(1); | |
| 35 | } | |
| 36 | routeCountEachJob.put(jobId, count); | |
| 37 | return count.get(); | |
| 38 | } | |
| 39 | ||
| 40 | @Override | |
| 41 | public ReturnT<String> route(TriggerParam triggerParam, List<String> addressList) { | |
| 42 | String address = addressList.get(count(triggerParam.getJobId())%addressList.size()); | |
| 43 | return new ReturnT<String>(address); | |
| 44 | } | |
| 45 | ||
| 46 | } | |
