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.it.gcp.artifacts.utils;
  
  import static java.util.Arrays.stream;
  import static org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Preconditions.checkArgument;
  
  import com.google.auth.Credentials;
  import com.google.cloud.storage.Storage;
  import com.google.cloud.storage.StorageOptions;
  import java.time.Instant;
  import java.time.ZoneId;
  import java.time.format.DateTimeFormatter;
  import java.util.UUID;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Strings;
  
  /** Utilities for working with test artifacts. */
  public final class ArtifactUtils {
    private ArtifactUtils() {}
  
    /** Creates a unique id for the run. */
    public static String createRunId() {
      return String.format(
          "%s-%s",
          DateTimeFormatter.ofPattern("yyyyMMdd").withZone(ZoneId.of("UTC")).format(Instant.now()),
          // by default some templates replace "dd" in the output paths with a day of the month, since
          // this id is used as a part of output paths replace "dd" with an arbitrary number to avoid
          // confusion and potential flaky tests
          UUID.randomUUID().toString().replace("dd", "99"));
    }
  
    /**
     * Returns the full GCS path given a list of path parts.
     *
     * <p>"path parts" refers to the bucket, directories, and file. Only the bucket is mandatory and
     * must be the first value provided.
     *
     * @param pathParts everything that makes up the path, minus the separators. There must be at
     *     least one value, and none of them can be empty
     * @return the full path, such as 'gs://bucket/dir1/dir2/file'
     */
    public static String getFullGcsPath(String... pathParts) {
      checkArgument(pathParts.length != 0, "Must provide at least one path part");
      checkArgument(
          stream(pathParts).noneMatch(Strings::isNullOrEmpty), "No path part can be null or empty");
  
      return String.format("gs://%s", String.join("/", pathParts));
    }
  
    /**
     * Creates a client for GCS with the given credentials.
     *
     * @param credentials credentials to use for connecting. If not chosen, then this will use the
     *     system credentials. Using system credentials is intended only for local testing. Otherwise,
     *     it is best to pass in a short-lived access token.
     * @return a {@link Storage} client for running GCS operations
     */
    public static Storage createStorageClient(Credentials credentials) {
      StorageOptions.Builder builder = StorageOptions.newBuilder();
      if (credentials != null) {
        builder.setCredentials(credentials);
      }
      return builder.build().getService();
    }
  }
  