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

Example 11 with Blob

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

the class StorageSnippets method copyBlobInChunks.

/**
   * Example of copying a blob in chunks.
   */
// [TARGET copy(CopyRequest)]
// [VARIABLE "my_unique_bucket"]
// [VARIABLE "my_blob_name"]
// [VARIABLE "copy_blob_name"]
public Blob copyBlobInChunks(String bucketName, String blobName, String copyBlobName) {
    // [START copyBlobInChunks]
    CopyRequest request = CopyRequest.newBuilder().setSource(BlobId.of(bucketName, blobName)).setTarget(BlobId.of(bucketName, copyBlobName)).build();
    CopyWriter copyWriter = storage.copy(request);
    while (!copyWriter.isDone()) {
        copyWriter.copyChunk();
    }
    Blob blob = copyWriter.getResult();
    // [END copyBlobInChunks]
    return blob;
}

Example 12 with Blob

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

the class ITBlobSnippets method testMoveBlob.

@Test
public void testMoveBlob() throws IOException {
    BlobSnippets blobSnippets = new BlobSnippets(blob);
    Blob movedBlob = blobSnippets.moveTo(BUCKET, "moveBlob");
    assertNotNull(movedBlob);
    // Assert that the destination blob exists
    Iterator<Blob> blobs = storage.list(BUCKET).iterateAll().iterator();
    Blob moveBlob = blobs.next();
    assertEquals(BUCKET, moveBlob.getBucket());
    assertEquals("moveBlob", moveBlob.getName());
    // Assert that the old blob doesn't exist
    assertFalse(blobs.hasNext());
}

Example 13 with Blob

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

the class ITBlobSnippets method testBlob.

@Test
public void testBlob() throws IOException {
    BlobSnippets blobSnippets = new BlobSnippets(blob);
    assertTrue(blobSnippets.exists());
    assertArrayEquals(EMPTY_CONTENT, blobSnippets.getContent());
    try {
        assertNotNull(blobSnippets.reload());
        fail("Expected StorageException to be thrown");
    } catch (StorageException ex) {
    // expected
    }
    Blob updatedBlob = blobSnippets.update();
    assertEquals(ImmutableMap.of("key", "value"), updatedBlob.getMetadata());
    Blob copiedBlob = blobSnippets.copyToStrings(BUCKET, "copyBlob");
    assertNotNull(copiedBlob);
    copiedBlob.delete();
    copiedBlob = blobSnippets.copyToId(BUCKET, "copyBlob");
    assertNotNull(copiedBlob);
    copiedBlob.delete();
    copiedBlob = blobSnippets.copyToBucket(BUCKET);
    assertNotNull(copiedBlob);
    copiedBlob.delete();
    blobSnippets.reload();
    blobSnippets.writer();
    URL signedUrl = blobSnippets.signUrl();
    URLConnection connection = signedUrl.openConnection();
    byte[] readBytes = new byte[CONTENT.length];
    try (InputStream responseStream = connection.getInputStream()) {
        assertEquals(CONTENT.length, responseStream.read(readBytes));
        assertArrayEquals(CONTENT, readBytes);
    }
    signedUrl = blobSnippets.signUrlWithSigner(System.getenv("GOOGLE_APPLICATION_CREDENTIALS"));
    connection = signedUrl.openConnection();
    try (InputStream responseStream = connection.getInputStream()) {
        assertEquals(CONTENT.length, responseStream.read(readBytes));
        assertArrayEquals(CONTENT, readBytes);
    }
    assertFalse(blobSnippets.delete());
    blobSnippets = new BlobSnippets(storage.get(blob.getBucket(), blob.getName()));
    byte[] subcontent = blobSnippets.readContentRange(1, 8);
    assertArrayEquals("ello, W".getBytes(UTF_8), subcontent);
    assertNull(blobSnippets.getAcl());
    assertNotNull(blobSnippets.createAcl());
    Acl updatedAcl = blobSnippets.updateAcl();
    assertEquals(Acl.Role.OWNER, updatedAcl.getRole());
    Set<Acl> acls = Sets.newHashSet(blobSnippets.listAcls());
    assertTrue(acls.contains(updatedAcl));
    assertTrue(blobSnippets.deleteAcl());
    assertNull(blobSnippets.getAcl());
    storage.delete(BlobId.of(BUCKET, BLOB));
}

Example 14 with Blob

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

the class ITStorageSnippets method testBlobAcl.

@Test
public void testBlobAcl() {
    String blobName = "test-blob-acl";
    BlobId blobId = BlobId.of(BUCKET, "test-blob-acl");
    BlobInfo blob = BlobInfo.newBuilder(blobId).build();
    Blob createdBlob = storage.create(blob);
    assertNull(storageSnippets.getBlobAcl(BUCKET, blobName, createdBlob.getGeneration()));
    assertNotNull(storageSnippets.createBlobAcl(BUCKET, blobName, createdBlob.getGeneration()));
    Acl updatedAcl = storageSnippets.updateBlobAcl(BUCKET, blobName, createdBlob.getGeneration());
    assertEquals(Acl.Role.OWNER, updatedAcl.getRole());
    Set<Acl> acls = Sets.newHashSet(storageSnippets.listBlobAcls(BUCKET, blobName, createdBlob.getGeneration()));
    assertTrue(acls.contains(updatedAcl));
    assertNull(storageSnippets.getBlobAcl(BUCKET, blobName, USER_EMAIL));
    storage.createAcl(BlobId.of(BUCKET, blobName), Acl.of(new User(USER_EMAIL), Role.READER));
    Acl userAcl = storageSnippets.getBlobAcl(BUCKET, blobName, USER_EMAIL);
    assertNotNull(userAcl);
    assertEquals(USER_EMAIL, ((User) userAcl.getEntity()).getEmail());
    updatedAcl = storageSnippets.blobToPublicRead(BUCKET, blobName, createdBlob.getGeneration());
    assertEquals(Acl.Role.READER, updatedAcl.getRole());
    assertEquals(User.ofAllUsers(), updatedAcl.getEntity());
    acls = Sets.newHashSet(storageSnippets.listBlobAcls(BUCKET, blobName, createdBlob.getGeneration()));
    assertTrue(acls.contains(updatedAcl));
    assertNotNull(storageSnippets.getBlobAcl(BUCKET, blobName, createdBlob.getGeneration()));
    assertTrue(storageSnippets.deleteBlobAcl(BUCKET, blobName, createdBlob.getGeneration()));
    assertNull(storageSnippets.getBlobAcl(BUCKET, blobName, createdBlob.getGeneration()));
    // test non-existing blob
    String nonExistingBlob = "test-blob-acl";
    assertNull(storageSnippets.getBlobAcl(BUCKET, nonExistingBlob, -1L));
    assertFalse(storageSnippets.deleteBlobAcl(BUCKET, nonExistingBlob, -1L));
    try {
        storageSnippets.createBlobAcl(BUCKET, nonExistingBlob, -1L);
        fail("Expected StorageException");
    } catch (StorageException ex) {
    // expected
    }
    try {
        storageSnippets.updateBlobAcl(BUCKET, nonExistingBlob, -1L);
        fail("Expected StorageException");
    } catch (StorageException ex) {
    // expected
    }
    try {
        storageSnippets.listBlobAcls(BUCKET, nonExistingBlob, -1L);
        fail("Expected StorageException");
    } catch (StorageException ex) {
    // expected
    }
}

Example 15 with Blob

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

the class ITStorageSnippets method testCreateUpdateEncryptedBlob.

@Test
public void testCreateUpdateEncryptedBlob() throws InterruptedException {
    // Note: DO NOT put your encryption key in your code, like it is here. Store it somewhere safe,
    // and read it in when you need it. This key is just here to make the code easier to read.
    String encryptionKey1 = "0mMWhFvQOdS4AmxRpo8SJxXn5MjFhbz7DkKBUdUIef8=";
    String blobName = "encrypted-blob";
    Blob blob = storageSnippets.createEncryptedBlob(BUCKET, blobName, encryptionKey1);
    assertNotNull(blob);
    assertEquals("text/plain", blob.getContentType());
    byte[] encryptedContent = storageSnippets.readEncryptedBlob(BUCKET, blobName, encryptionKey1);
    assertEquals("Hello, World!", new String(encryptedContent));
    blob = storageSnippets.getBlobFromId(BUCKET, blobName);
    assertEquals("text/plain", blob.getContentType());
    String encryptionKey2 = "wnxMO0w+dmxribu7rICJ+Q2ES9TLpFRIDy3/L7HN5ZA=";
    blob = storageSnippets.rotateBlobEncryptionKey(BUCKET, blobName, encryptionKey1, encryptionKey2);
    assertNotNull(blob);
    encryptedContent = storageSnippets.readEncryptedBlob(BUCKET, blobName, encryptionKey2);
    assertEquals("Hello, World!", new String(encryptedContent));
    blob = storageSnippets.getBlobFromId(BUCKET, blobName);
    assertEquals("text/plain", blob.getContentType());
}