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 com.datastax.oss.driver.core.connection;
  
  import static com.datastax.oss.simulacron.common.stubbing.PrimeDsl.noRows;
  import static com.datastax.oss.simulacron.common.stubbing.PrimeDsl.rows;
  import static com.datastax.oss.simulacron.common.stubbing.PrimeDsl.when;
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.fail;
  
  import com.datastax.oss.driver.api.core.AllNodesFailedException;
  import com.datastax.oss.driver.api.core.CqlSession;
  import com.datastax.oss.driver.api.core.config.DefaultDriverOption;
  import com.datastax.oss.driver.api.core.config.DriverConfigLoader;
  import com.datastax.oss.driver.api.core.connection.FrameTooLongException;
  import com.datastax.oss.driver.api.core.context.DriverContext;
  import com.datastax.oss.driver.api.core.cql.AsyncResultSet;
  import com.datastax.oss.driver.api.core.cql.SimpleStatement;
  import com.datastax.oss.driver.api.core.retry.RetryVerdict;
  import com.datastax.oss.driver.api.core.session.Request;
  import com.datastax.oss.driver.api.testinfra.loadbalancing.SortingLoadBalancingPolicy;
  import com.datastax.oss.driver.api.testinfra.session.SessionRule;
  import com.datastax.oss.driver.api.testinfra.session.SessionUtils;
  import com.datastax.oss.driver.api.testinfra.simulacron.SimulacronRule;
  import com.datastax.oss.driver.categories.ParallelizableTests;
  import com.datastax.oss.driver.internal.core.retry.DefaultRetryPolicy;
  import com.datastax.oss.simulacron.common.cluster.ClusterSpec;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import java.nio.Buffer;
  import java.nio.ByteBuffer;
  import java.util.concurrent.CompletionStage;
  import java.util.concurrent.TimeUnit;
  import org.junit.BeforeClass;
  import org.junit.ClassRule;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  import org.junit.rules.RuleChain;
  import org.junit.rules.TestRule;
  
  @Category(ParallelizableTests.class)
  public class FrameLengthIT {
    private static final SimulacronRule SIMULACRON_RULE =
        new SimulacronRule(ClusterSpec.builder().withNodes(1));
  
    private static DriverConfigLoader loader =
        SessionUtils.configLoaderBuilder()
            .withClass(
                DefaultDriverOption.LOAD_BALANCING_POLICY_CLASS, SortingLoadBalancingPolicy.class)
            .withClass(DefaultDriverOption.RETRY_POLICY_CLASS, AlwaysRetryAbortedPolicy.class)
            .withBytes(DefaultDriverOption.PROTOCOL_MAX_FRAME_LENGTH, 100 * 1024)
            .build();
  
    private static final SessionRule<CqlSession> SESSION_RULE =
        SessionRule.builder(SIMULACRON_RULE).withConfigLoader(loader).build();
  
    @ClassRule
    public static final TestRule CHAIN = RuleChain.outerRule(SIMULACRON_RULE).around(SESSION_RULE);
  
    private static final SimpleStatement LARGE_QUERY =
        SimpleStatement.newInstance("select * from foo").setIdempotent(true);
    private static final SimpleStatement SLOW_QUERY =
        SimpleStatement.newInstance("select * from bar");
  
    private static final Buffer ONE_HUNDRED_KB = ByteBuffer.allocate(100 * 1024).limit(100 * 1024);
  
    @BeforeClass
    public static void primeQueries() {
      SIMULACRON_RULE
          .cluster()
          .prime(
              when(LARGE_QUERY.getQuery())
                  .then(rows().row("result", ONE_HUNDRED_KB).columnTypes("result", "blob").build()));
      SIMULACRON_RULE
          .cluster()
          .prime(when(SLOW_QUERY.getQuery()).then(noRows()).delay(60, TimeUnit.SECONDS));
    }
  
    @Test(expected = FrameTooLongException.class)
    public void should_fail_if_request_exceeds_max_frame_length() {
      SESSION_RULE
          .session()
          .execute(SimpleStatement.newInstance("insert into foo (k) values (?)", ONE_HUNDRED_KB));
    }
  
    @Test
    public void should_fail_if_response_exceeds_max_frame_length() {
      CompletionStage<AsyncResultSet> slowResultFuture =
          SESSION_RULE.session().executeAsync(SLOW_QUERY);
      try {
        SESSION_RULE.session().execute(LARGE_QUERY);
        fail("Expected a " + FrameTooLongException.class.getSimpleName());
      } catch (FrameTooLongException e) {
        // expected
      }
      // Check that the error does not abort other requests on the same connection
      assertThat(slowResultFuture.toCompletableFuture()).isNotCompleted();
    }
  
    /**
     * A retry policy that always retries aborted requests.
     *
     * <p>We use this to validate that {@link FrameTooLongException} is never passed to the policy (if
     * it were, then this policy would retry it, and the exception thrown to the client would be an
     * {@link AllNodesFailedException}).
     */
    public static class AlwaysRetryAbortedPolicy extends DefaultRetryPolicy {
      public AlwaysRetryAbortedPolicy(DriverContext context, String profileName) {
        super(context, profileName);
      }
  
      @Override
      public RetryVerdict onRequestAbortedVerdict(
          @NonNull Request request, @NonNull Throwable error, int retryCount) {
        return RetryVerdict.RETRY_NEXT;
      }
    }
  }
  