content: /*
   * 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.distributed.upgrade;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.atomic.AtomicInteger;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  
  import com.vdurmont.semver4j.Semver;
  import org.apache.cassandra.distributed.UpgradeableCluster;
  import org.apache.cassandra.distributed.api.ConsistencyLevel;
  import org.apache.cassandra.distributed.api.Feature;
  import org.apache.cassandra.distributed.api.IUpgradeableInstance;
  
  import static java.lang.String.format;
  import static java.util.concurrent.TimeUnit.SECONDS;
  import static org.apache.cassandra.distributed.api.ConsistencyLevel.ALL;
  import static org.apache.cassandra.distributed.api.ConsistencyLevel.ONE;
  import static org.apache.cassandra.distributed.api.ConsistencyLevel.QUORUM;
  import static org.apache.cassandra.distributed.shared.AssertUtils.assertRows;
  import static org.apache.cassandra.distributed.shared.AssertUtils.row;
  
  public class MixedModeIndexTestBase extends UpgradeTestBase
  {
      private static final AtomicInteger TABLE_INDEX = new AtomicInteger(1);
  
      protected static void testIndex(Semver initial) throws Throwable
      {
          List<Tester> testers = new ArrayList<>();
          testers.addAll(Tester.create(1, ALL));
          testers.addAll(Tester.create(2, ALL, QUORUM));
          testers.addAll(Tester.create(3, ALL, QUORUM, ONE));
  
          new TestCase()
          .nodes(3)
          .nodesToUpgrade(1)
          .upgradesToCurrentFrom(initial)
          .withConfig(config -> config.set("read_request_timeout_in_ms", SECONDS.toMillis(30))
                                      .set("write_request_timeout_in_ms", SECONDS.toMillis(30))
                                      .with(Feature.GOSSIP))
          .setup(cluster -> {
              for (Tester tester : testers)
              {
                  tester.createTable(cluster);
                  tester.createIndex(cluster);
                  tester.writeRows(cluster);
              }
          }).runAfterNodeUpgrade((cluster, node) -> {
              for (Tester tester : testers)
                  tester.readRows(cluster);
          }).run();
      }
  
      private static class Tester
      {
          private final String table;
          private final int numWrittenReplicas;
          private final ConsistencyLevel readConsistencyLevel;
  
          private Tester(int numWrittenReplicas, ConsistencyLevel readConsistencyLevel)
          {
              this.table = "cf_" + TABLE_INDEX.getAndIncrement();
              this.numWrittenReplicas = numWrittenReplicas;
              this.readConsistencyLevel = readConsistencyLevel;
          }
  
          private static List<Tester> create(int numWrittenReplicas, ConsistencyLevel... readConsistencyLevels)
          {
              return Stream.of(readConsistencyLevels)
                           .map(readConsistencyLevel -> new Tester(numWrittenReplicas, readConsistencyLevel))
                           .collect(Collectors.toList());
          }
  
          private void createTable(UpgradeableCluster cluster)
          {
              cluster.schemaChange(withKeyspace(String.format("CREATE TABLE %%s.%s (k int, c int, v int, PRIMARY KEY (k, c))", table)));
          }
  
          public void createIndex(UpgradeableCluster cluster)
          {
              cluster.schemaChange(withKeyspace(String.format("CREATE INDEX ON %%s.%s (v);", table)));
          }
  
          private void writeRows(UpgradeableCluster cluster)
          {
              String query = withKeyspace(String.format("INSERT INTO %%s.%s (k, c, v) VALUES (?, ?, ?)", table));
              for (int i = 1; i <= numWrittenReplicas; i++)
              {
                  IUpgradeableInstance node = cluster.get(i);
                  node.executeInternal(query, 1, 1, 10);
                  node.executeInternal(query, 1, 2, 20);
                  node.executeInternal(query, 1, 3, 30);
              }
          }
  
          private void readRows(UpgradeableCluster cluster)
          {
              String query = withKeyspace(String.format("SELECT * FROM %%s.%s WHERE v = ? ALLOW FILTERING", table));
              int coordinator = 1;
              try
              {
                  for (coordinator = 1; coordinator <= cluster.size(); coordinator++)
                  {
                      assertRows(cluster.coordinator(coordinator).execute(query, readConsistencyLevel, 10),
                                 row(1, 1, 10));
                      assertRows(cluster.coordinator(coordinator).execute(query, readConsistencyLevel, 20),
                                 row(1, 2, 20));
                      assertRows(cluster.coordinator(coordinator).execute(query, readConsistencyLevel, 30),
                                 row(1, 3, 30));
                  }
              }
              catch (Throwable t)
              {
                  String format = "Unexpected error reading rows with %d written replicas, CL=%s and coordinator=%s";
                  throw new AssertionError(format(format, numWrittenReplicas, readConsistencyLevel, coordinator), t);
              }
          }
      }
  }
  