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.internal.core.session.throttling;
  
  import com.datastax.oss.driver.api.core.context.DriverContext;
  import com.datastax.oss.driver.api.core.session.throttling.RequestThrottler;
  import com.datastax.oss.driver.api.core.session.throttling.Throttled;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import java.io.IOException;
  import net.jcip.annotations.ThreadSafe;
  
  /**
   * A request throttler that does not enforce any kind of limitation: requests are always executed
   * immediately.
   *
   * <p>To activate this throttler, modify the {@code advanced.throttler} section in the driver
   * configuration, for example:
   *
   * <pre>
   * datastax-java-driver {
   *   advanced.throttler {
   *     class = PassThroughRequestThrottler
   *   }
   * }
   * </pre>
   *
   * See {@code reference.conf} (in the manual or core driver JAR) for more details.
   */
  @ThreadSafe
  public class PassThroughRequestThrottler implements RequestThrottler {
  
    @SuppressWarnings("unused")
    public PassThroughRequestThrottler(DriverContext context) {
      // nothing to do
    }
  
    @Override
    public void register(@NonNull Throttled request) {
      request.onThrottleReady(false);
    }
  
    @Override
    public void signalSuccess(@NonNull Throttled request) {
      // nothing to do
    }
  
    @Override
    public void signalError(@NonNull Throttled request, @NonNull Throwable error) {
      // nothing to do
    }
  
    @Override
    public void signalTimeout(@NonNull Throttled request) {
      // nothing to do
    }
  
    @Override
    public void signalCancel(@NonNull Throttled request) {
      // nothing to do
    }
  
    @Override
    public void close() throws IOException {
      // nothing to do
    }
  }
  