docs: Adding Samples for Printing Bucket ACLs and Printing Bucket ACL…

… for a specific user. (#1236)

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: BenWhitehead <BenWhitehead@users.noreply.github.com>

.kokoro/presubmit/samples.cfg

@@ -30,4 +30,9 @@ env_vars: {
 env_vars: {
   key: "SECRET_MANAGER_KEYS"
   value: "java-docs-samples-service-account"
-}
+}
+
+env_vars: {
+  key: "IT_SERVICE_ACCOUNT_EMAIL"
+  value: "java-docs-samples-testing@java-docs-samples-testing.iam.gserviceaccount.com"
+}

README.md

@@ -229,6 +229,8 @@ Samples are in the [`samples/`](https://github.com/googleapis/java-storage/tree/
 | --------------------------- | --------------------------------- | ------ |
 | Configure Retries | [source code](https://github.com/googleapis/java-storage/blob/main/samples/snippets/src/main/java/com/example/storage/ConfigureRetries.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-storage&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/storage/ConfigureRetries.java) |
 | Quickstart Sample | [source code](https://github.com/googleapis/java-storage/blob/main/samples/snippets/src/main/java/com/example/storage/QuickstartSample.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-storage&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/storage/QuickstartSample.java) |
+| Print Bucket Acl | [source code](https://github.com/googleapis/java-storage/blob/main/samples/snippets/src/main/java/com/example/storage/bucket/PrintBucketAcl.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-storage&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/storage/bucket/PrintBucketAcl.java) |
+| Print Bucket Acl Filter By User | [source code](https://github.com/googleapis/java-storage/blob/main/samples/snippets/src/main/java/com/example/storage/bucket/PrintBucketAclFilterByUser.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-storage&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/storage/bucket/PrintBucketAclFilterByUser.java) |
 
 
 

owlbot.py

@@ -31,5 +31,6 @@
   '.kokoro/nightly/integration.cfg',
   '.kokoro/nightly/java11-integration.cfg',
   '.kokoro/presubmit/integration.cfg',
+  '.kokoro/presubmit/samples.cfg',
   'CONTRIBUTING.md'
 ])

samples/snippets/src/main/java/com/example/storage/bucket/PrintBucketAcl.java

@@ -0,0 +1,52 @@
+/*
+ * 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.bucket;
+
+// [START storage_print_bucket_acl]
+
+import com.google.cloud.storage.Acl;
+import com.google.cloud.storage.Bucket;
+import com.google.cloud.storage.Storage;
+import com.google.cloud.storage.StorageOptions;
+import java.util.List;
+
+public class PrintBucketAcl {
+
+  public static void printBucketAcl(String bucketName) {
+
+    // The ID to give your GCS bucket
+    // String bucketName = "your-unique-bucket-name";
+
+    Storage storage = StorageOptions.newBuilder().build().getService();
+    Bucket bucket = storage.get(bucketName);
+    List<Acl> bucketAcls = bucket.getAcl();
+
+    for (Acl acl : bucketAcls) {
+
+      // This will give you the role.
+      // See https://cloud.google.com/storage/docs/access-control/lists#permissions
+      String role = acl.getRole().name();
+
+      // This will give you the Entity type (i.e. User, Group, Project etc.)
+      // See https://cloud.google.com/storage/docs/access-control/lists#scopes
+      String entityType = acl.getEntity().getType().name();
+
+      System.out.printf("%s: %s \n", role, entityType);
+    }
+  }
+}
+// [END storage_print_bucket_acl]

samples/snippets/src/main/java/com/example/storage/bucket/PrintBucketAclFilterByUser.java

@@ -0,0 +1,46 @@
+/*
+ * 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.bucket;
+
+// [START storage_print_bucket_acl_for_user]
+
+import com.google.cloud.storage.Acl;
+import com.google.cloud.storage.Acl.User;
+import com.google.cloud.storage.Bucket;
+import com.google.cloud.storage.Storage;
+import com.google.cloud.storage.StorageOptions;
+
+public class PrintBucketAclFilterByUser {
+
+  public static void printBucketAclFilterByUser(String bucketName, String userEmail) {
+
+    // The ID to give your GCS bucket
+    // String bucketName = "your-unique-bucket-name";
+
+    // The email of the user whose acl is being retrieved.
+    // String userEmail = "someuser@domain.com"
+
+    Storage storage = StorageOptions.newBuilder().build().getService();
+    Bucket bucket = storage.get(bucketName);
+
+    Acl userAcl = bucket.getAcl(new User(userEmail));
+    String userRole = userAcl.getRole().name();
+    System.out.println("User " + userEmail + " has role " + userRole);
+  }
+}
+
+// [END storage_print_bucket_acl_for_user]

samples/snippets/src/test/java/com/example/storage/TestBase.java

@@ -0,0 +1,53 @@
+/*
+ * 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;
+
+import com.google.cloud.storage.Blob;
+import com.google.cloud.storage.BlobInfo;
+import com.google.cloud.storage.BucketInfo;
+import com.google.cloud.storage.Storage;
+import com.google.cloud.storage.StorageOptions;
+import com.google.cloud.storage.testing.RemoteStorageHelper;
+import com.google.cloud.testing.junit4.StdOutCaptureRule;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+
+public abstract class TestBase {
+
+  @Rule public StdOutCaptureRule stdOut = new StdOutCaptureRule();
+
+  protected String bucketName;
+  protected Storage storage;
+  protected String blobName;
+
+  protected Blob blob;
+
+  @Before
+  public void setUp() {
+    blobName = "blob";
+    bucketName = RemoteStorageHelper.generateBucketName();
+    storage = StorageOptions.getDefaultInstance().getService();
+    storage.create(BucketInfo.of(bucketName));
+    blob = storage.create(BlobInfo.newBuilder(bucketName, blobName).build());
+  }
+
+  @After
+  public void tearDown() {
+    RemoteStorageHelper.forceDelete(storage, bucketName);
+  }
+}

samples/snippets/src/test/java/com/example/storage/bucket/PrintBucketAclFilterByUserTest.java

@@ -0,0 +1,44 @@
+/*
+ * 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.bucket;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.assertNotNull;
+
+import com.example.storage.TestBase;
+import com.google.cloud.storage.Acl;
+import com.google.cloud.storage.Acl.Entity;
+import com.google.cloud.storage.Acl.Role;
+import com.google.cloud.storage.Acl.User;
+import org.junit.Test;
+
+public class PrintBucketAclFilterByUserTest extends TestBase {
+
+  public static final String IT_SERVICE_ACCOUNT_EMAIL = System.getenv("IT_SERVICE_ACCOUNT_EMAIL");
+
+  @Test
+  public void testPrintBucketAclByUser() {
+    // Check for user email before the actual test.
+    assertNotNull("Unable to determine user email", IT_SERVICE_ACCOUNT_EMAIL);
+
+    Entity testUser = new User(IT_SERVICE_ACCOUNT_EMAIL);
+    storage.createAcl(bucketName, Acl.of(testUser, Role.READER));
+    PrintBucketAclFilterByUser.printBucketAclFilterByUser(bucketName, IT_SERVICE_ACCOUNT_EMAIL);
+    assertThat(stdOut.getCapturedOutputAsUtf8String()).contains(IT_SERVICE_ACCOUNT_EMAIL);
+    assertThat(stdOut.getCapturedOutputAsUtf8String()).contains(Role.READER.name());
+  }
+}

samples/snippets/src/test/java/com/example/storage/bucket/PrintBucketAclTest.java

@@ -0,0 +1,43 @@
+/*
+ * 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.bucket;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.assertNotNull;
+
+import com.example.storage.TestBase;
+import com.google.cloud.storage.Acl;
+import com.google.cloud.storage.Acl.Entity;
+import com.google.cloud.storage.Acl.Role;
+import com.google.cloud.storage.Acl.User;
+import org.junit.Test;
+
+public class PrintBucketAclTest extends TestBase {
+
+  public static final String IT_SERVICE_ACCOUNT_EMAIL = System.getenv("IT_SERVICE_ACCOUNT_EMAIL");
+
+  @Test
+  public void testPrintBucketAcls() {
+    // Check for user email before the actual test.
+    assertNotNull("Unable to determine user email", IT_SERVICE_ACCOUNT_EMAIL);
+
+    Entity testUser = new User(IT_SERVICE_ACCOUNT_EMAIL);
+    storage.createAcl(bucketName, Acl.of(testUser, Role.READER));
+    PrintBucketAcl.printBucketAcl(bucketName);
+    assertThat(stdOut.getCapturedOutputAsUtf8String()).contains("READER: USER");
+  }
+}