content: /*
   * Licensed 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 io.airlift.http.client.jetty;
  
  import org.eclipse.jetty.client.Request;
  import org.eclipse.jetty.client.Response;
  
  import java.util.Optional;
  
  import static com.google.common.base.Preconditions.checkArgument;
  import static java.util.Objects.requireNonNull;
  
  public interface HttpClientLogger
  {
      void log(RequestInfo requestInfo, ResponseInfo responseInfo);
  
      void close();
  
      int getQueueSize();
  
      class RequestInfo
      {
          private final Request request;
          private final long requestTimestampMillis;
          private final long requestCreatedTimestamp;
          private final long requestBeginTimestamp;
          private final long requestEndTimestamp;
  
          private RequestInfo(Request request, long requestTimestampMillis, long requestCreatedTimestamp, long requestBeginTimestamp, long requestEndTimestamp)
          {
              this.request = requireNonNull(request, "request is null");
              this.requestTimestampMillis = requestTimestampMillis;
              this.requestCreatedTimestamp = requestCreatedTimestamp;
              this.requestBeginTimestamp = requestBeginTimestamp;
              this.requestEndTimestamp = requestEndTimestamp;
          }
  
          public static RequestInfo from(Request request, long requestTimestampMillis)
          {
              requireNonNull(request, "request is null");
              return new RequestInfo(request, requestTimestampMillis, 0L, 0L, 0L);
          }
  
          public static RequestInfo from(Request request, long requestTimestampMillis, long requestCreatedTimestamp, long requestBeginTimestamp, long requestEndTimestamp)
          {
              requireNonNull(request, "request is null");
              return new RequestInfo(request, requestTimestampMillis, requestCreatedTimestamp, requestBeginTimestamp, requestEndTimestamp);
          }
  
          public Request getRequest()
          {
              return request;
          }
  
          public long getRequestTimestampMillis()
          {
              return requestTimestampMillis;
          }
  
          public long getRequestBeginTimestamp()
          {
              return requestBeginTimestamp;
          }
  
          public long getRequestEndTimestamp()
          {
              return requestEndTimestamp;
          }
  
          public long getRequestCreatedTimestamp()
          {
              return requestCreatedTimestamp;
          }
      }
  
      class ResponseInfo
      {
          private final Optional<Response> response;
          private final Optional<Throwable> failureCause;
          private final long responseSize;
          private final long responseTimestampMillis = System.currentTimeMillis();
          private final long responseBeginTimestamp;
          private final long responseCompleteTimestamp;
  
          private ResponseInfo(
                  Optional<Response> response,
                  long responseSize,
                  long responseBeginTimestamp,
                  long responseCompleteTimestamp,
                  Optional<Throwable> failure)
          {
              requireNonNull(response, "response is null");
              requireNonNull(failure, "failure is null");
              this.response = response;
              this.responseSize = responseSize;
              this.responseBeginTimestamp = responseBeginTimestamp;
              this.responseCompleteTimestamp = responseCompleteTimestamp;
              this.failureCause = failure;
          }
  
          public static ResponseInfo from(Optional<Response> response, long responseSize, long responseBeginTimestamp, long responseCompleteTimestamp)
          {
              requireNonNull(response, "response is null");
              checkArgument(responseSize >= 0, "responseSize is negative");
              return new ResponseInfo(response, responseSize, responseBeginTimestamp, responseCompleteTimestamp, Optional.empty());
          }
  
          public static ResponseInfo failed(Optional<Response> response, Optional<Throwable> failureCause)
          {
              requireNonNull(response, "response is null");
              requireNonNull(failureCause, "failureCause is null");
              return new ResponseInfo(response, 0L, 0L, System.nanoTime(), failureCause);
          }
  
          public static ResponseInfo failed(Optional<Response> response, Optional<Throwable> failureCause, long responseBeginTimestamp, long responseCompleteTimestamp)
          {
              requireNonNull(response, "response is null");
              requireNonNull(failureCause, "failureCause is null");
              return new ResponseInfo(response, 0L, responseBeginTimestamp, responseCompleteTimestamp, failureCause);
          }
  
          public Optional<Response> getResponse()
          {
              return response;
          }
  
          public long getResponseSize()
          {
              return responseSize;
          }
  
          public Optional<Throwable> getFailureCause()
          {
              return failureCause;
          }
  
          public long getResponseTimestampMillis()
          {
              return responseTimestampMillis;
          }
  
          public long getResponseBeginTimestamp()
          {
              return responseBeginTimestamp;
          }
  
          public long getResponseCompleteTimestamp()
          {
              return responseCompleteTimestamp;
          }
      }
  }
  