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 org.apache.beam.sdk.extensions.gcp.storage;
  
  import static org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Preconditions.checkNotNull;
  
  import com.google.auto.service.AutoService;
  import javax.annotation.Nonnull;
  import org.apache.beam.sdk.extensions.gcp.options.GcsOptions;
  import org.apache.beam.sdk.io.FileSystem;
  import org.apache.beam.sdk.io.FileSystemRegistrar;
  import org.apache.beam.sdk.options.PipelineOptions;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  
  /** {@link AutoService} registrar for the {@link GcsFileSystem}. */
  @AutoService(FileSystemRegistrar.class)
  public class GcsFileSystemRegistrar implements FileSystemRegistrar {
  
    @Override
    public Iterable<FileSystem<?>> fromOptions(@Nonnull PipelineOptions options) {
      checkNotNull(options, "Expect the runner have called FileSystems.setDefaultPipelineOptions().");
      return ImmutableList.of(new GcsFileSystem(options.as(GcsOptions.class)));
    }
  }
  