| /* |
| * 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.locator; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.SchemaLoader; |
| import org.apache.cassandra.Util; |
| import org.apache.cassandra.db.Keyspace; |
| import org.apache.cassandra.dht.RandomPartitioner.BigIntegerToken; |
| import org.apache.cassandra.dht.Token; |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| import org.apache.cassandra.schema.KeyspaceParams; |
| |
| public class ReplicationStrategyEndpointCacheTest |
| { |
| private TokenMetadata tmd; |
| private Token searchToken; |
| private AbstractReplicationStrategy strategy; |
| public static final String KEYSPACE = "ReplicationStrategyEndpointCacheTest"; |
| |
| @BeforeClass |
| public static void defineSchema() |
| { |
| SchemaLoader.prepareServer(); |
| SchemaLoader.createKeyspace(KEYSPACE, KeyspaceParams.simple(5)); |
| } |
| |
| public void setup() throws Exception |
| { |
| tmd = new TokenMetadata(); |
| searchToken = new BigIntegerToken(String.valueOf(15)); |
| strategy = getStrategyWithNewTokenMetadata(Keyspace.open(KEYSPACE).getReplicationStrategy(), tmd); |
| |
| for (int i = 1; i <= 8; i++) |
| tmd.updateNormalToken(new BigIntegerToken(String.valueOf(i * 10)), InetAddressAndPort.getByName("127.0.0." + i)); |
| } |
| |
| @Test |
| public void testEndpointsWereCached() throws Exception |
| { |
| setup(); |
| Util.assertRCEquals(strategy.getNaturalReplicasForToken(searchToken), strategy.getNaturalReplicasForToken(searchToken)); |
| } |
| |
| @Test |
| public void testCacheRespectsTokenChanges() throws Exception |
| { |
| setup(); |
| EndpointsForToken initial; |
| EndpointsForToken replicas; |
| |
| replicas = strategy.getNaturalReplicasForToken(searchToken); |
| assert replicas.size() == 5 : StringUtils.join(replicas, ","); |
| |
| // test token addition, in DC2 before existing token |
| initial = strategy.getNaturalReplicasForToken(searchToken); |
| tmd.updateNormalToken(new BigIntegerToken(String.valueOf(35)), InetAddressAndPort.getByName("127.0.0.5")); |
| replicas = strategy.getNaturalReplicasForToken(searchToken); |
| assert replicas.size() == 5 : StringUtils.join(replicas, ","); |
| Util.assertNotRCEquals(replicas, initial); |
| |
| // test token removal, newly created token |
| initial = strategy.getNaturalReplicasForToken(searchToken); |
| tmd.removeEndpoint(InetAddressAndPort.getByName("127.0.0.5")); |
| replicas = strategy.getNaturalReplicasForToken(searchToken); |
| assert replicas.size() == 5 : StringUtils.join(replicas, ","); |
| assert !replicas.endpoints().contains(InetAddressAndPort.getByName("127.0.0.5")); |
| Util.assertNotRCEquals(replicas, initial); |
| |
| // test token change |
| initial = strategy.getNaturalReplicasForToken(searchToken); |
| //move .8 after search token but before other DC3 |
| tmd.updateNormalToken(new BigIntegerToken(String.valueOf(25)), InetAddressAndPort.getByName("127.0.0.8")); |
| replicas = strategy.getNaturalReplicasForToken(searchToken); |
| assert replicas.size() == 5 : StringUtils.join(replicas, ","); |
| Util.assertNotRCEquals(replicas, initial); |
| } |
| |
| private AbstractReplicationStrategy getStrategyWithNewTokenMetadata(AbstractReplicationStrategy strategy, TokenMetadata newTmd) throws ConfigurationException |
| { |
| return AbstractReplicationStrategy.createReplicationStrategy( |
| strategy.keyspaceName, |
| AbstractReplicationStrategy.getClass(strategy.getClass().getName()), |
| newTmd, |
| strategy.snitch, |
| strategy.configOptions); |
| } |
| |
| } |