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.graphql;
  
  import graphql.schema.DataFetcher;
  import graphql.schema.DataFetchingEnvironment;
  import java.net.URI;
  import org.openqa.selenium.grid.distributor.Distributor;
  import org.openqa.selenium.grid.sessionqueue.NewSessionQueue;
  import org.openqa.selenium.internal.Require;
  
  public class GridData implements DataFetcher<Grid> {
    private final Distributor distributor;
    private final NewSessionQueue newSessionQueue;
    private final URI publicUri;
    private final String version;
  
    public GridData(
        Distributor distributor, NewSessionQueue newSessionQueue, URI publicUri, String version) {
      this.distributor = Require.nonNull("Distributor", distributor);
      this.publicUri = Require.nonNull("Grid's public URI", publicUri);
      this.newSessionQueue = Require.nonNull("New session queue", newSessionQueue);
      this.version = Require.nonNull("Grid's version", version);
    }
  
    @Override
    public Grid get(DataFetchingEnvironment environment) {
      return new Grid(distributor, newSessionQueue, publicUri, version);
    }
  }
  