Examples with Blob com.google.cloud.storage.Blob used on opensource projects

Example 46 with Blob

use of com.google.cloud.storage.Blob in project google-cloud-java by GoogleCloudPlatform.

the class StorageSnippets method batchGet.

/**
   * Example of getting information on several blobs using a single batch request.
   */
// [TARGET get(BlobId...)]
// [VARIABLE "my_unique_bucket"]
// [VARIABLE "my_blob_name1"]
// [VARIABLE "my_blob_name2"]
public List<Blob> batchGet(String bucketName, String blobName1, String blobName2) {
    // [START batchGet]
    BlobId firstBlob = BlobId.of(bucketName, blobName1);
    BlobId secondBlob = BlobId.of(bucketName, blobName2);
    List<Blob> blobs = storage.get(firstBlob, secondBlob);
    // [END batchGet]
    return blobs;
}

Example 47 with Blob

use of com.google.cloud.storage.Blob in project google-cloud-java by GoogleCloudPlatform.

the class StorageSnippets method updateBlobWithMetageneration.

/**
   * Example of udating a blob, only if the blob's metageneration matches a value, otherwise a
   * {@link StorageException} is thrown.
   */
// [TARGET update(BlobInfo, BlobTargetOption...)]
// [VARIABLE "my_unique_bucket"]
// [VARIABLE "my_blob_name"]
public Blob updateBlobWithMetageneration(String bucketName, String blobName) {
    // [START updateBlobWithMetageneration]
    Blob blob = storage.get(bucketName, blobName);
    BlobInfo updatedInfo = blob.toBuilder().setContentType("text/plain").build();
    storage.update(updatedInfo, BlobTargetOption.metagenerationMatch());
    // [END updateBlobWithMetageneration]
    return blob;
}

Example 48 with Blob

use of com.google.cloud.storage.Blob in project google-cloud-java by GoogleCloudPlatform.

the class StorageSnippets method updateBlob.

/**
   * Example of replacing blob's metadata.
   */
// [TARGET update(BlobInfo)]
// [VARIABLE "my_unique_bucket"]
// [VARIABLE "my_blob_name"]
public Blob updateBlob(String bucketName, String blobName) {
    // [START updateBlob]
    Map<String, String> newMetadata = new HashMap<>();
    newMetadata.put("key", "value");
    storage.update(BlobInfo.newBuilder(bucketName, blobName).setMetadata(null).build());
    Blob blob = storage.update(BlobInfo.newBuilder(bucketName, blobName).setMetadata(newMetadata).build());
    // [END updateBlob]
    return blob;
}

Example 49 with Blob

use of com.google.cloud.storage.Blob in project google-cloud-java by GoogleCloudPlatform.

the class StorageSnippets method rotateBlobEncryptionKey.

/**
   * Example of rotating the encryption key of a blob.
   */
// [TARGET copy(CopyRequest)]
// [VARIABLE "my_unique_bucket"]
// [VARIABLE "my_blob_name"]
// [VARIABLE "old_encryption_key"]
// [VARIABLE "new_encryption_key"]
public Blob rotateBlobEncryptionKey(String bucketName, String blobName, String oldEncryptionKey, String newEncryptionKey) {
    // [START storageRotateEncryptionKey]
    BlobId blobId = BlobId.of(bucketName, blobName);
    CopyRequest request = CopyRequest.newBuilder().setSource(blobId).setSourceOptions(BlobSourceOption.decryptionKey(oldEncryptionKey)).setTarget(blobId, BlobTargetOption.encryptionKey(newEncryptionKey)).build();
    Blob blob = storage.copy(request).getResult();
    // [END storageRotateEncryptionKey]
    return blob;
}

Example 50 with Blob

use of com.google.cloud.storage.Blob in project google-cloud-java by GoogleCloudPlatform.

the class StorageSnippets method createBlob.

/**
   * Example of creating a blob with no content.
   */
// [TARGET create(BlobInfo, BlobTargetOption...)]
// [VARIABLE "my_unique_bucket"]
// [VARIABLE "my_blob_name"]
public Blob createBlob(String bucketName, String blobName) {
    // [START createBlob]
    BlobId blobId = BlobId.of(bucketName, blobName);
    BlobInfo blobInfo = BlobInfo.newBuilder(blobId).setContentType("text/plain").build();
    Blob blob = storage.create(blobInfo);
    // [END createBlob]
    return blob;
}