| /* |
| * 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.cassandra.metrics; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.IOException; |
| import java.util.function.Supplier; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import org.apache.cassandra.SchemaLoader; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| import org.apache.cassandra.schema.Schema; |
| import org.apache.cassandra.service.EmbeddedCassandraService; |
| |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import com.datastax.driver.core.Cluster; |
| import com.datastax.driver.core.Session; |
| |
| public class KeyspaceMetricsTest extends SchemaLoader |
| { |
| private static Session session; |
| |
| @BeforeClass |
| public static void setup() throws ConfigurationException, IOException |
| { |
| Schema.instance.clear(); |
| |
| EmbeddedCassandraService cassandra = new EmbeddedCassandraService(); |
| cassandra.start(); |
| |
| Cluster cluster = Cluster.builder().addContactPoint("127.0.0.1").withPort(DatabaseDescriptor.getNativeTransportPort()).build(); |
| session = cluster.connect(); |
| } |
| |
| @Test |
| public void testMetricsCleanupOnDrop() |
| { |
| String keyspace = "keyspacemetricstest_metrics_cleanup"; |
| CassandraMetricsRegistry registry = CassandraMetricsRegistry.Metrics; |
| Supplier<Stream<String>> metrics = () -> registry.getNames().stream().filter(m -> m.contains(keyspace)); |
| |
| // no metrics before creating |
| assertEquals(0, metrics.get().count()); |
| |
| session.execute(String.format("CREATE KEYSPACE %s WITH replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };", keyspace)); |
| // some metrics |
| assertTrue(metrics.get().count() > 0); |
| |
| session.execute(String.format("DROP KEYSPACE %s;", keyspace)); |
| // no metrics after drop |
| assertEquals(metrics.get().collect(Collectors.joining(",")), 0, metrics.get().count()); |
| } |
| |
| @AfterClass |
| public static void teardown() |
| { |
| session.close(); |
| } |
| } |