xueli.xue
8 years ago
parent
5370a8b3dc
commit
9c03285d94
@ -0,0 +1,41 @@
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package com.xxl.job.admin.core.route;
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import com.xxl.job.admin.core.route.strategy.*;
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/**
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* Created by xuxueli on 17/3/10.
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*/
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public enum ExecutorRouteStrategyEnum {
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FIRST("第一个", new ExecutorRouteFirst()),
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LAST("最后一个", new ExecutorRouteLast()),
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ROUND("轮询", new ExecutorRouteRound()),
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RANDOM("随机", new ExecutorRouteRandom()),
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CONSISTENT_HASH("一致性HASH", new ExecutorRouteConsistentHash()),
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FAILOVER("故障转移", null);
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ExecutorRouteStrategyEnum(String title, ExecutorRouter router) {
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this.title = title;
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this.router = router;
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}
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private String title;
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private ExecutorRouter router;
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public String getTitle() {
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return title;
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}
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public ExecutorRouter getRouter() {
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return router;
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}
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public static ExecutorRouteStrategyEnum match(String name, ExecutorRouteStrategyEnum defaultItem){
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for (ExecutorRouteStrategyEnum item: ExecutorRouteStrategyEnum.values()) {
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if (item.name().equals(name)) {
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return item;
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}
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}
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return defaultItem;
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}
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}
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package com.xxl.job.admin.core.route;
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import org.apache.commons.collections.CollectionUtils;
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import java.util.ArrayList;
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import java.util.Arrays;
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/**
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* Created by xuxueli on 17/3/10.
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*/
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public abstract class ExecutorRouter {
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public abstract String route(int jobId, ArrayList<String> addressList);
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public static String route(int jobId, ArrayList<String> addressList, String executorRouteStrategy){
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if (CollectionUtils.isEmpty(addressList)) {
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return null;
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}
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ExecutorRouteStrategyEnum strategy = ExecutorRouteStrategyEnum.match(executorRouteStrategy, ExecutorRouteStrategyEnum.FIRST);
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String routeAddress = strategy.getRouter().route(jobId, addressList);
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return routeAddress;
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}
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public static void main(String[] args) {
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int c1 = 0;
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int c2 = 0;
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int c3 = 0;
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long start = System.currentTimeMillis();
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for (int i = 0; i < 10; i++) {
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String ret = ExecutorRouter.route(i, new ArrayList<String>(Arrays.asList("127.0.0.1:0000", "127.0.0.1:2222", "127.0.0.1:3333")), ExecutorRouteStrategyEnum.CONSISTENT_HASH.name());
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if (ret.equals("127.0.0.1:0000")) {
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c1++;
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} else if (ret.equals("127.0.0.1:2222")) {
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c2++;
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} else if (ret.equals("127.0.0.1:3333")) {
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c3++;
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}
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}
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long end = System.currentTimeMillis();
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System.out.println(end - start); // 1000*100=740、1000*1=162、
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System.out.println(c1);
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System.out.println(c2);
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System.out.println(c3);
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}
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}
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@ -0,0 +1,17 @@
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package com.xxl.job.admin.core.route.strategy;
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import com.xxl.job.admin.core.route.ExecutorRouter;
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import java.util.ArrayList;
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/**
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* Created by xuxueli on 17/3/10.
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*/
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public class ExecutorRouteFirst extends ExecutorRouter {
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@Override
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public String route(int jobId, ArrayList<String> addressList) {
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return addressList.get(0);
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}
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}
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@ -0,0 +1,17 @@
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package com.xxl.job.admin.core.route.strategy;
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import com.xxl.job.admin.core.route.ExecutorRouter;
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import java.util.ArrayList;
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/**
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* Created by xuxueli on 17/3/10.
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*/
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public class ExecutorRouteLast extends ExecutorRouter {
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@Override
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public String route(int jobId, ArrayList<String> addressList) {
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return addressList.get(addressList.size()-1);
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}
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}
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@ -0,0 +1,20 @@
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package com.xxl.job.admin.core.route.strategy;
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import com.xxl.job.admin.core.route.ExecutorRouter;
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import java.util.ArrayList;
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import java.util.Random;
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/**
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* Created by xuxueli on 17/3/10.
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*/
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public class ExecutorRouteRandom extends ExecutorRouter {
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private static Random localRandom = new Random();
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@Override
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public String route(int jobId, ArrayList<String> addressList) {
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return addressList.get(localRandom.nextInt(addressList.size()));
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}
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}
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@ -0,0 +1,26 @@
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package com.xxl.job.admin.core.route.strategy;
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import com.xxl.job.admin.core.route.ExecutorRouter;
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import java.util.ArrayList;
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import java.util.concurrent.ConcurrentHashMap;
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/**
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* Created by xuxueli on 17/3/10.
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*/
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public class ExecutorRouteRound extends ExecutorRouter {
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private static ConcurrentHashMap<Integer, Integer> routeCountEachJob = new ConcurrentHashMap<Integer, Integer>();
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private static int count(int jobId) {
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Integer count = routeCountEachJob.get(jobId);
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count = (count==null)?0:++count;
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routeCountEachJob.put(jobId, count);
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return count;
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}
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@Override
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public String route(int jobId, ArrayList<String> addressList) {
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return addressList.get(count(jobId)%addressList.size());
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}
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}
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