code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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 org.openqa.selenium.grid.sessionqueue.config;
  
  import static org.openqa.selenium.grid.config.StandardGridRoles.SESSION_QUEUE_ROLE;
  import static org.openqa.selenium.grid.sessionqueue.config.NewSessionQueueOptions.DEFAULT_BATCH_SIZE;
  import static org.openqa.selenium.grid.sessionqueue.config.NewSessionQueueOptions.DEFAULT_REQUEST_TIMEOUT;
  import static org.openqa.selenium.grid.sessionqueue.config.NewSessionQueueOptions.DEFAULT_REQUEST_TIMEOUT_PERIOD;
  import static org.openqa.selenium.grid.sessionqueue.config.NewSessionQueueOptions.DEFAULT_RETRY_INTERVAL;
  import static org.openqa.selenium.grid.sessionqueue.config.NewSessionQueueOptions.SESSION_QUEUE_SECTION;
  
  import com.beust.jcommander.Parameter;
  import com.google.auto.service.AutoService;
  import java.net.URI;
  import java.util.Collections;
  import java.util.Set;
  import org.openqa.selenium.grid.config.ConfigValue;
  import org.openqa.selenium.grid.config.HasRoles;
  import org.openqa.selenium.grid.config.Role;
  
  @SuppressWarnings("FieldMayBeFinal")
  @AutoService(HasRoles.class)
  public class NewSessionQueueFlags implements HasRoles {
  
    @Parameter(
        names = {"--sq", "--sessionqueue"},
        description = "Address of the session queue server.")
    @ConfigValue(section = "sessionqueue", name = "host", example = "\"http://localhost:1237\"")
    private URI sessionQueueServer;
  
    @Parameter(
        names = "--sessionqueue-port",
        description = "Port on which the session queue server is listening.")
    @ConfigValue(section = "sessionqueue", name = "port", example = "1234")
    private Integer sessionQueueServerPort;
  
    @Parameter(
        names = "--sessionqueue-host",
        description = "Host on which the session queue server is listening.")
    @ConfigValue(section = "sessionqueue", name = "hostname", example = "\"localhost\"")
    private String sessionQueueServerHost;
  
    @Parameter(
        names = {"--session-request-timeout"},
        description =
            "Timeout in seconds. New incoming session request is added to the queue. "
                + "Requests sitting in the queue for longer than the configured time will timeout.")
    @ConfigValue(section = SESSION_QUEUE_SECTION, name = "session-request-timeout", example = "5")
    private int sessionRequestTimeout = DEFAULT_REQUEST_TIMEOUT;
  
    @Parameter(
        names = {"--session-request-timeout-period"},
        description = "In seconds, how often the timeout for new session requests is checked.")
    @ConfigValue(
        section = SESSION_QUEUE_SECTION,
        name = "session-request-timeout-period",
        example = "5")
    private int sessionRequestTimeoutPeriod = DEFAULT_REQUEST_TIMEOUT_PERIOD;
  
    @Parameter(
        names = {"--session-retry-interval"},
        description =
            "Session creation interval in milliseconds. If all slots are busy, new session "
                + "request will be retried after the given interval.")
    @ConfigValue(section = SESSION_QUEUE_SECTION, name = "session-retry-interval", example = "15")
    private int sessionRetryInterval = DEFAULT_RETRY_INTERVAL;
  
    @Parameter(
        names = {"--sessionqueue-batch-size"},
        description = "Maximum batch size that can consumed from queue based on the available slots.")
    @ConfigValue(section = SESSION_QUEUE_SECTION, name = "sessionqueue-batch-size", example = "20")
    private int batchSize = DEFAULT_BATCH_SIZE;
  
    @Override
    public Set<Role> getRoles() {
      return Collections.singleton(SESSION_QUEUE_ROLE);
    }
  }
  