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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2019/08/22 10:29:05 UTC
[GitHub] [incubator-shardingsphere] tristaZero commented on a change in pull
request #2828: Add leaf snowflake key generator and related functions.
tristaZero commented on a change in pull request #2828: Add leaf snowflake key generator and related functions.
URL: https://github.com/apache/incubator-shardingsphere/pull/2828#discussion_r316603903
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File path: sharding-orchestration/sharding-orchestration-core/src/test/java/org/apache/shardingsphere/orchestration/internal/keygen/LeafSnowflakeKeyGeneratorTest.java
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@@ -0,0 +1,275 @@
+/*
+ * 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.shardingsphere.orchestration.internal.keygen;
+
+import org.apache.shardingsphere.orchestration.internal.keygen.fixture.FixedTimeService;
+import org.apache.shardingsphere.orchestration.internal.keygen.fixture.PreviousTimeService;
+import org.apache.shardingsphere.orchestration.util.FieldUtil;
+import org.hamcrest.CoreMatchers;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Properties;
+import java.util.Set;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+import static org.junit.Assert.assertThat;
+
+public final class LeafSnowflakeKeyGeneratorTest {
+
+ private LeafSnowflakeKeyGenerator leafSnowflakeKeyGenerator = new LeafSnowflakeKeyGenerator();
+
+ @Test
+ public void assertGetProperties() {
+ assertThat(leafSnowflakeKeyGenerator.getProperties().entrySet().size(), CoreMatchers.is(0));
+ }
+
+ @Test
+ public void assertSetProperties() {
+ Properties properties = new Properties();
+ properties.setProperty("key1", "value1");
+ leafSnowflakeKeyGenerator.setProperties(properties);
+ assertThat(leafSnowflakeKeyGenerator.getProperties().get("key1"), CoreMatchers.is((Object) "value1"));
+ }
+
+ @Test
+ public void assertGenerateKeyWithSingleThread() {
+ Properties properties = new Properties();
+ properties.setProperty("serverList", "127.0.0.1:2181");
+ properties.setProperty("serviceId", "testService1");
+ properties.setProperty("maxTimeDifference", "5000");
+ properties.setProperty("registryCenterType", "ForthTestRegistryCenter");
+ leafSnowflakeKeyGenerator.setProperties(properties);
+ FieldUtil.setStaticFinalField(leafSnowflakeKeyGenerator, "timeService", new FixedTimeService(1));
+ List<Comparable<?>> expected = Arrays.<Comparable<?>>asList(4198401L, 4198402L, 8392704L, 8392705L, 12587009L, 12587010L, 16781312L, 16781313L, 20975617L, 20975618L);
+ List<Comparable<?>> actual = new ArrayList<>();
+ for (int i = 0; i < 10; i++) {
+ actual.add(leafSnowflakeKeyGenerator.generateKey());
+ }
+ assertThat(actual, CoreMatchers.is(expected));
+ }
+
+ @Test
+ public void assertGenerateKeyWithFixedWorkId() {
+ Properties properties = new Properties();
+ properties.setProperty("serverList", "127.0.0.1:2181");
+ properties.setProperty("serviceId", "testService1");
+ properties.setProperty("maxTimeDifference", "5000");
+ properties.setProperty("registryCenterType", "ForthTestRegistryCenter");
+ leafSnowflakeKeyGenerator.setProperties(properties);
+ FieldUtil.setStaticFinalField(leafSnowflakeKeyGenerator, "timeService", new FixedTimeService(1));
+ List<Comparable<?>> expected = Arrays.<Comparable<?>>asList(4198401L);
+ List<Comparable<?>> actual = new ArrayList<>();
+ actual.add(leafSnowflakeKeyGenerator.generateKey());
+ assertThat(actual, CoreMatchers.is(expected));
+ }
+
+ @Test(expected = IllegalStateException.class)
+ public void generateKeyFailureWithTimeRollback() {
+ Properties properties = new Properties();
+ properties.setProperty("serverList", "127.0.0.1:2181");
+ properties.setProperty("serviceId", "specialService");
+ properties.setProperty("maxTimeDifference", "5000");
+ properties.setProperty("registryCenterType", "FifthTestRegistryCenter");
+ leafSnowflakeKeyGenerator.setProperties(properties);
+ FieldUtil.setStaticFinalField(leafSnowflakeKeyGenerator, "timeService", new PreviousTimeService(15000));
+ leafSnowflakeKeyGenerator.generateKey();
+ }
+
+ @Test
+ public void generateKeySuccessWithTimeRollback() {
+ Properties properties = new Properties();
+ properties.setProperty("serverList", "127.0.0.1:2181");
+ properties.setProperty("serviceId", "specialService");
+ properties.setProperty("maxTimeDifference", "5000");
+ properties.setProperty("registryCenterType", "FifthTestRegistryCenter");
+ leafSnowflakeKeyGenerator.setProperties(properties);
+ FieldUtil.setStaticFinalField(leafSnowflakeKeyGenerator, "timeService", new PreviousTimeService(3000));
+ leafSnowflakeKeyGenerator.generateKey();
+ }
+
+ @Test
+ public void assertGenerateKeyWithMultipleThreads() throws Exception {
+ int threadNumber = Runtime.getRuntime().availableProcessors() << 1;
+ ExecutorService executor = Executors.newFixedThreadPool(threadNumber);
+ Properties properties = new Properties();
+ properties.setProperty("serverList", "127.0.0.1:2181");
+ properties.setProperty("serviceId", "testService1");
+ properties.setProperty("maxTimeDifference", "5000");
+ properties.setProperty("registryCenterType", "ForthTestRegistryCenter");
+ leafSnowflakeKeyGenerator.setProperties(properties);
+ Set<Comparable<?>> actual = new HashSet<>();
+ int taskNumber = threadNumber << 2;
+ for (int i = 0; i < taskNumber; i++) {
+ actual.add(executor.submit(new Callable<Comparable<?>>() {
+ @Override
Review comment:
Add blank line
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