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.api.core.cql;
  
  import edu.umd.cs.findbugs.annotations.Nullable;
  import java.net.InetAddress;
  import java.net.InetSocketAddress;
  
  /** An event in a {@link QueryTrace}. */
  public interface TraceEvent {
  
    /** Which activity this event corresponds to. */
    @Nullable
    String getActivity();
  
    /** The server-side timestamp of the event. */
    long getTimestamp();
  
    /**
     * @deprecated returns the source IP, but {@link #getSourceAddress()} should be preferred, since
     *     C* 4.0 and above now returns the port was well.
     */
    @Nullable
    @Deprecated
    InetAddress getSource();
  
    /**
     * The IP and Port of the host having generated this event. Prior to C* 4.0 the port will be set
     * to zero.
     *
     * <p>This method's default implementation returns {@link #getSource()} with the port set to 0.
     * The only reason it exists is to preserve binary compatibility. Internally, the driver overrides
     * it to set the correct port.
     *
     * @since 4.6.0
     */
    @Nullable
    default InetSocketAddress getSourceAddress() {
      return new InetSocketAddress(getSource(), 0);
    }
    /**
     * The number of microseconds elapsed on the source when this event occurred since the moment when
     * the source started handling the query.
     */
    int getSourceElapsedMicros();
  
    /** The name of the thread on which this event occurred. */
    @Nullable
    String getThreadName();
  }
  