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* docs: add batch sample * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * copyright * fix whitespace Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
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samples/snippets/src/main/java/com/example/storage/object/BatchSetObjectMetadata.java
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| /* | ||
| * Copyright 2022 Google LLC | ||
| * | ||
| * Licensed 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 com.example.storage.object; | ||
|
|
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| // [START storage_batch_request] | ||
| import com.google.api.gax.paging.Page; | ||
| import com.google.cloud.storage.Blob; | ||
| import com.google.cloud.storage.Storage; | ||
| import com.google.cloud.storage.StorageBatch; | ||
| import com.google.cloud.storage.StorageOptions; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
|
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| public class BatchSetObjectMetadata { | ||
| public static void batchSetObjectMetadata( | ||
| String projectId, String bucketName, String directoryPrefix) { | ||
| // The ID of your GCP project | ||
| // String projectId = "your-project-id"; | ||
|
|
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| // The ID of your GCS bucket | ||
| // String bucketName = "your-unique-bucket-name"; | ||
|
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| // The directory prefix. All objects in the bucket with this prefix will have their metadata | ||
| // updated | ||
| // String directoryPrefix = "yourDirectory/"; | ||
|
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| Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService(); | ||
| Map<String, String> newMetadata = new HashMap<>(); | ||
| newMetadata.put("keyToAddOrUpdate", "value"); | ||
| Page<Blob> blobs = | ||
| storage.list( | ||
| bucketName, | ||
| Storage.BlobListOption.prefix(directoryPrefix), | ||
| Storage.BlobListOption.currentDirectory()); | ||
| StorageBatch batchRequest = storage.batch(); | ||
|
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| // Add all blobs with the given prefix to the batch request | ||
| for (Blob blob : blobs.iterateAll()) { | ||
| batchRequest.update(blob.toBuilder().setMetadata(newMetadata).build()); | ||
| } | ||
|
|
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| // Execute the batch request | ||
| batchRequest.submit(); | ||
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| System.out.println( | ||
| "All blobs in bucket " | ||
| + bucketName | ||
| + " with prefix '" | ||
| + directoryPrefix | ||
| + "' had their metadata updated."); | ||
| } | ||
| } | ||
| // [END storage_batch_request] |
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