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   * 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.
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  package org.apache.cassandra.distributed.test.guardrails;
  
  import java.io.IOException;
  import java.util.List;
  
  import org.junit.AfterClass;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import com.datastax.driver.core.Session;
  import com.datastax.driver.core.exceptions.InvalidQueryException;
  import org.apache.cassandra.db.guardrails.Guardrails;
  import org.apache.cassandra.distributed.Cluster;
  import org.apache.cassandra.distributed.api.IIsolatedExecutor;
  import org.apache.cassandra.distributed.test.sai.SAIUtil;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.assertThatThrownBy;
  
  import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
  import static org.apache.cassandra.distributed.api.Feature.NATIVE_PROTOCOL;
  import static org.apache.cassandra.distributed.api.Feature.NETWORK;
  
  public class IntersectFilteringQueryTest extends GuardrailTester
  {
      private static Cluster cluster;
      private static com.datastax.driver.core.Cluster driverCluster;
      private static Session driverSession;
  
      @BeforeClass
      public static void setupCluster() throws IOException
      {
          cluster = init(Cluster.build(2).withConfig(c -> c.with(GOSSIP, NATIVE_PROTOCOL, NETWORK)
                                                           .set("read_thresholds_enabled", "true")
                                                           .set("authenticator", "PasswordAuthenticator")).start());
  
          driverCluster = buildDriverCluster(cluster);
          driverSession = driverCluster.connect();
      }
  
      @AfterClass
      public static void teardownCluster()
      {
          if (driverSession != null)
              driverSession.close();
  
          if (driverCluster != null)
              driverCluster.close();
  
          if (cluster != null)
              cluster.close();
      }
  
      @Override
      protected Cluster getCluster()
      {
          return cluster;
      }
  
      @Override
      protected Session getSession()
      {
          return driverSession;
      }
  
      @Test
      @SuppressWarnings({"DataFlowIssue", "ResultOfMethodCallIgnored"})
      public void shouldWarnOnFilteringQuery()
      {
          cluster.forEach(instance -> instance.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> Guardrails.instance.setIntersectFilteringQueryWarned(true)));
          cluster.forEach(instance -> instance.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> Guardrails.instance.setIntersectFilteringQueryEnabled(true)));
          
          schemaChange("CREATE TABLE IF NOT EXISTS %s (k bigint, c bigint, v1 bigint, v2 bigint, PRIMARY KEY (k, c))");
          List<String> globalWarnings = executeViaDriver(format("SELECT * FROM %s WHERE v1 = 0 AND v2 = 0 ALLOW FILTERING"));
          assertThat(globalWarnings).satisfiesOnlyOnce(s -> s.contains(Guardrails.intersectFilteringQueryEnabled.reason));
          List<String> partitionWarnings = executeViaDriver(format("SELECT * FROM %s WHERE k = 0 AND v1 = 0 AND v2 = 0 ALLOW FILTERING"));
          assertThat(partitionWarnings).satisfiesOnlyOnce(s -> s.contains(Guardrails.intersectFilteringQueryEnabled.reason));
      }
  
      @Test
      public void shouldFailOnFilteringQuery()
      {
          cluster.forEach(instance -> instance.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> Guardrails.instance.setIntersectFilteringQueryEnabled(false)));
  
          schemaChange("CREATE TABLE IF NOT EXISTS %s (k bigint, c bigint, v1 bigint, v2 bigint, PRIMARY KEY (k, c))");
  
          assertThatThrownBy(() -> executeViaDriver(format("SELECT * FROM %s WHERE k = 0 AND v1 = 0 AND v2 = 0 ALLOW FILTERING")))
                  .isInstanceOf(InvalidQueryException.class)
                  .hasMessageContaining(Guardrails.intersectFilteringQueryEnabled.reason);
      }
  
      @Test
      public void shouldNotWarnOrFailOnIndexQuery()
      {
          cluster.forEach(instance -> instance.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> Guardrails.instance.setIntersectFilteringQueryWarned(true)));
          cluster.forEach(instance -> instance.runOnInstance((IIsolatedExecutor.SerializableRunnable) () -> Guardrails.instance.setIntersectFilteringQueryEnabled(false)));
          
          schemaChange("CREATE TABLE %s (k bigint, c bigint, v1 bigint, v2 bigint, PRIMARY KEY (k, c))");
          schemaChange("CREATE INDEX ON %s(v1) USING 'sai'");
          schemaChange("CREATE INDEX ON %s(v2) USING 'sai'");
          SAIUtil.waitForIndexQueryable(getCluster(), KEYSPACE);
  
          List<String> globalWarnings = executeViaDriver(format("SELECT * FROM %s WHERE v1 = 0 AND v2 = 0"));
          assertThat(globalWarnings).isEmpty();
          List<String> partitionWarnings = executeViaDriver(format("SELECT * FROM %s WHERE k = 0 AND v1 = 0 AND v2 = 0"));
          assertThat(partitionWarnings).isEmpty();
      }
  }
  