| /* |
| * 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.geode.cache.client.internal.pooling; |
| |
| import static org.apache.geode.test.concurrency.Utilities.availableProcessors; |
| import static org.apache.geode.test.concurrency.Utilities.repeat; |
| import static org.assertj.core.api.Assertions.assertThat; |
| |
| import java.util.concurrent.ExecutionException; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import org.apache.geode.test.concurrency.ConcurrentTestRunner; |
| import org.apache.geode.test.concurrency.ParallelExecutor; |
| |
| @RunWith(ConcurrentTestRunner.class) |
| public class ConnectionAccountingConcurrentTest { |
| private final int count = availableProcessors() * 2; |
| |
| @Test |
| public void tryPrefillStaysBelowOrAtMin(ParallelExecutor executor) |
| throws ExecutionException, InterruptedException { |
| final int min = count - 1; |
| ConnectionAccounting accountant = new ConnectionAccounting(min, min + 4); |
| |
| executor.inParallel(() -> { |
| accountant.tryPrefill(); |
| assertThat(accountant.getCount()).isGreaterThan(0).isLessThanOrEqualTo(min); |
| }, count); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(min); |
| } |
| |
| @Test |
| public void cancelTryPrefillStaysUnderMin(ParallelExecutor executor) |
| throws ExecutionException, InterruptedException { |
| final int min = count - 1; |
| ConnectionAccounting accountant = new ConnectionAccounting(min, min + 4); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryPrefill()) { |
| accountant.cancelTryPrefill(); |
| assertThat(accountant.getCount()).isGreaterThanOrEqualTo(0).isLessThanOrEqualTo(min); |
| } |
| }, count); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(0); |
| } |
| |
| @Test |
| public void creates(ParallelExecutor executor) throws Exception { |
| ConnectionAccounting accountant = new ConnectionAccounting(0, 1); |
| |
| executor.inParallel(() -> { |
| accountant.create(); |
| assertThat(accountant.getCount()).isGreaterThan(0).isLessThanOrEqualTo(count); |
| }, count); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(count); |
| } |
| |
| @Test |
| public void tryCreateStaysWithinMax(ParallelExecutor executor) throws Exception { |
| ConnectionAccounting accountant = new ConnectionAccounting(1, count); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryCreate()) { |
| assertThat(accountant.getCount()).isGreaterThan(0).isLessThanOrEqualTo(count); |
| } |
| }, count + 1); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(count); |
| } |
| |
| @Test |
| public void cancelTryCreateStaysWithinMax(ParallelExecutor executor) throws Exception { |
| ConnectionAccounting accountant = new ConnectionAccounting(1, count); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryCreate()) { |
| accountant.cancelTryCreate(); |
| assertThat(accountant.getCount()).isGreaterThanOrEqualTo(0).isLessThanOrEqualTo(count); |
| } |
| }, count + 1); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(0); |
| } |
| |
| @Test |
| public void destroyAndIsUnderMinimum(ParallelExecutor executor) throws Exception { |
| ConnectionAccounting accountant = new ConnectionAccounting(2, 4); |
| repeat(() -> accountant.create(), count); |
| |
| executor.inParallel(() -> { |
| if (accountant.destroyAndIsUnderMinimum(1)) { |
| assertThat(accountant.getCount()).isGreaterThanOrEqualTo(0).isLessThan(2); |
| } else { |
| assertThat(accountant.getCount()).isGreaterThanOrEqualTo(0).isLessThan(count); |
| } |
| }, count); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(0); |
| } |
| |
| @Test |
| public void tryDestroyNeverGoesBelowMax(ParallelExecutor executor) throws Exception { |
| final int overfillMax = Math.max(count, 4); |
| final int max = overfillMax / 2; |
| ConnectionAccounting accountant = new ConnectionAccounting(1, max); |
| repeat(() -> accountant.create(), overfillMax); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryDestroy()) { |
| assertThat(accountant.getCount()).isGreaterThanOrEqualTo(max).isLessThan(overfillMax); |
| } |
| }, overfillMax + 1); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(max); |
| } |
| |
| @Test |
| public void cancelTryDestroyStaysAboveMax(ParallelExecutor executor) throws Exception { |
| final int overfillMax = Math.max(count, 4); |
| final int max = overfillMax / 2; |
| ConnectionAccounting accountant = new ConnectionAccounting(1, max); |
| repeat(() -> accountant.create(), overfillMax); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryDestroy()) { |
| accountant.cancelTryDestroy(); |
| assertThat(accountant.getCount()).isGreaterThanOrEqualTo(max) |
| .isLessThanOrEqualTo(overfillMax); |
| } |
| }, max + 1); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isEqualTo(overfillMax); |
| } |
| |
| |
| @Test |
| public void mixItUp(ParallelExecutor executor) throws Exception { |
| final int overfill = Math.max(count, 8); |
| final int max = overfill / 4; |
| final int overfillMax = overfill + max; |
| ConnectionAccounting accountant = new ConnectionAccounting(1, max); |
| repeat(() -> accountant.create(), overfill); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryDestroy()) { |
| accountant.cancelTryDestroy(); |
| } |
| }, max); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryCreate()) { |
| accountant.cancelTryCreate(); |
| } |
| }, max); |
| |
| executor.inParallel(() -> { |
| accountant.create(); |
| }, max); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryCreate()) { |
| accountant.destroyAndIsUnderMinimum(1); |
| } |
| }, max); |
| |
| executor.inParallel(() -> { |
| if (accountant.tryPrefill()) { |
| accountant.cancelTryPrefill(); |
| } |
| }, max); |
| |
| executor.execute(); |
| |
| assertThat(accountant.getCount()).isGreaterThanOrEqualTo(0).isLessThanOrEqualTo(overfillMax); |
| } |
| |
| } |