| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.servicecomb.governance; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.servicecomb.governance.handler.InstanceBulkheadHandler; |
| import org.apache.servicecomb.governance.marker.GovernanceRequest; |
| import org.junit.jupiter.api.Assertions; |
| import org.junit.jupiter.api.Test; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.boot.test.context.SpringBootTest; |
| import org.springframework.test.context.ContextConfiguration; |
| |
| import io.github.resilience4j.bulkhead.Bulkhead; |
| import io.github.resilience4j.bulkhead.BulkheadFullException; |
| import io.github.resilience4j.decorators.Decorators; |
| import io.github.resilience4j.decorators.Decorators.DecorateCheckedSupplier; |
| |
| @SpringBootTest |
| @ContextConfiguration(classes = {GovernanceConfiguration.class, MockConfiguration.class}) |
| public class InstanceBulkheadHandlerTest { |
| private InstanceBulkheadHandler instanceBulkheadHandler; |
| |
| @Autowired |
| public void setInstanceBulkheadHandler(InstanceBulkheadHandler instanceBulkheadHandler) { |
| this.instanceBulkheadHandler = instanceBulkheadHandler; |
| } |
| |
| @Test |
| public void test_instance_bulkhead_work() throws Throwable { |
| |
| // instance1 |
| DecorateCheckedSupplier<String> dsInstance1 = Decorators.ofCheckedSupplier(() -> "wake"); |
| |
| GovernanceRequest requestInstance1 = new GovernanceRequest(); |
| requestInstance1.setInstanceId("instance01"); |
| requestInstance1.setServiceName("service01"); |
| requestInstance1.setUri("/test"); |
| |
| Bulkhead bulkheadInstance1 = instanceBulkheadHandler.getActuator(requestInstance1); |
| dsInstance1.withBulkhead(bulkheadInstance1); |
| |
| // instance2 |
| DecorateCheckedSupplier<String> dsInstance2 = Decorators.ofCheckedSupplier(() -> { |
| Thread.sleep(1000); |
| return "sleep"; |
| }); |
| |
| GovernanceRequest requestInstance2 = new GovernanceRequest(); |
| requestInstance2.setInstanceId("instance02"); |
| requestInstance2.setServiceName("service01"); |
| requestInstance2.setUri("/test"); |
| |
| Bulkhead bulkheadInstance2 = instanceBulkheadHandler.getActuator(requestInstance2); |
| dsInstance2.withBulkhead(bulkheadInstance2); |
| |
| Executor executor = Executors.newFixedThreadPool(4); |
| AtomicInteger wakeCount = new AtomicInteger(0); |
| AtomicInteger sleepCount = new AtomicInteger(0); |
| AtomicInteger errorCount = new AtomicInteger(0); |
| AtomicInteger rejectCount = new AtomicInteger(0); |
| CountDownLatch countDownLatch = new CountDownLatch(100); |
| for (int i = 0; i < 100; i++) { |
| final int num = i; |
| executor.execute(() -> { |
| // 50% for each server |
| if (num % 2 == 0) { |
| runCommand(dsInstance1, wakeCount, sleepCount, errorCount, rejectCount, countDownLatch); |
| } else { |
| runCommand(dsInstance2, wakeCount, sleepCount, errorCount, rejectCount, countDownLatch); |
| } |
| }); |
| } |
| countDownLatch.await(100, TimeUnit.SECONDS); |
| Assertions.assertEquals(50, wakeCount.get()); |
| Assertions.assertEquals(2, sleepCount.get()); |
| Assertions.assertEquals(0, errorCount.get()); |
| Assertions.assertEquals(48, rejectCount.get()); |
| } |
| |
| private void runCommand(DecorateCheckedSupplier<String> ds, AtomicInteger wakeCount, AtomicInteger sleepCount, |
| AtomicInteger errorCount, AtomicInteger rejectCount, CountDownLatch countDownLatch) { |
| try { |
| String result = ds.get(); |
| if ("wake".equals(result)) { |
| wakeCount.incrementAndGet(); |
| } else if ("sleep".equals(result)) { |
| sleepCount.incrementAndGet(); |
| } else { |
| errorCount.incrementAndGet(); |
| } |
| } catch (BulkheadFullException e) { |
| rejectCount.incrementAndGet(); |
| } catch (Throwable e) { |
| errorCount.incrementAndGet(); |
| } |
| countDownLatch.countDown(); |
| } |
| } |