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.tracker;
  
  import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
  import com.datastax.oss.driver.api.core.context.DriverContext;
  import com.datastax.oss.driver.api.core.metadata.Node;
  import com.datastax.oss.driver.api.core.session.Request;
  import com.datastax.oss.driver.api.core.tracker.RequestTracker;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import net.jcip.annotations.ThreadSafe;
  
  /**
   * Default request tracker implementation with empty methods. This implementation is used when no
   * trackers were registered, neither programmatically nor through the configuration.
   */
  @ThreadSafe
  public class NoopRequestTracker implements RequestTracker {
  
    public NoopRequestTracker(@SuppressWarnings("unused") DriverContext context) {
      // nothing to do
    }
  
    @Override
    public void onSuccess(
        @NonNull Request request,
        long latencyNanos,
        @NonNull DriverExecutionProfile executionProfile,
        @NonNull Node node,
        @NonNull String sessionRequestLogPrefix) {
      // nothing to do
    }
  
    @Override
    public void onError(
        @NonNull Request request,
        @NonNull Throwable error,
        long latencyNanos,
        @NonNull DriverExecutionProfile executionProfile,
        Node node,
        @NonNull String sessionRequestLogPrefix) {
      // nothing to do
    }
  
    @Override
    public void onNodeError(
        @NonNull Request request,
        @NonNull Throwable error,
        long latencyNanos,
        @NonNull DriverExecutionProfile executionProfile,
        @NonNull Node node,
        @NonNull String nodeRequestLogPrefix) {
      // nothing to do
    }
  
    @Override
    public void onNodeSuccess(
        @NonNull Request request,
        long latencyNanos,
        @NonNull DriverExecutionProfile executionProfile,
        @NonNull Node node,
        @NonNull String nodeRequestLogPrefix) {
      // nothing to do
    }
  
    @Override
    public void close() throws Exception {
      // nothing to do
    }
  }
  