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.runners.dataflow.util;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.UncheckedIOException;
  import java.util.stream.Collectors;
  import org.apache.beam.runners.dataflow.options.DataflowPipelineOptions;
  import org.apache.beam.sdk.io.FileSystems;
  import org.apache.beam.sdk.options.PipelineOptionsFactory;
  import org.apache.beam.sdk.util.construction.Environments;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.hash.HashCode;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.hash.Hashing;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.io.Files;
  
  /** Standalone program to upload files to GCS, for testing in isolation. */
  public class GCSUploadMain {
    public static void main(String[] args) {
      DataflowPipelineOptions options =
          PipelineOptionsFactory.fromArgs(args).as(DataflowPipelineOptions.class);
      FileSystems.setDefaultPipelineOptions(options);
      GcsStager stager = GcsStager.fromOptions(options);
      stager.stageFiles(
          options.getFilesToStage().stream()
              .map(
                  (String source) -> {
                    try {
                      File file = new File(source);
                      HashCode hashCode = Files.asByteSource(file).hash(Hashing.sha256());
                      return PackageUtil.StagedFile.of(
                          source,
                          hashCode.toString(),
                          Environments.createStagingFileName(file, hashCode));
                    } catch (IOException e) {
                      throw new UncheckedIOException(e);
                    }
                  })
              .collect(Collectors.toList()));
    }
  }
  