[asset] feat: add samples for SearchAllResources and SearchAllIamPoli…

…cies (#3168)

* Add samples for SearchAllResources and SearchAllIamPolicies

* Update error handling to catch specific exceptions.

* Fix static analysis issues for the newly added files; Remove arguments that are not required by tests.

asset/src/main/java/com/example/asset/SearchAllIamPoliciesExample.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 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.asset;
+
+// [START asset_quickstart_search_all_iam_policies]
+import com.google.api.gax.rpc.ApiException;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.cloud.asset.v1.AssetServiceClient;
+import com.google.cloud.asset.v1.AssetServiceClient.SearchAllIamPoliciesPagedResponse;
+import com.google.cloud.asset.v1.SearchAllIamPoliciesRequest;
+import java.io.IOException;
+
+public class SearchAllIamPoliciesExample {
+
+  // Searches for all the iam policies within the given scope.
+  public static void searchAllIamPolicies(String scope, String query) {
+    // TODO(developer): Replace these variables before running the sample.
+    int pageSize = 0;
+    String pageToken = "";
+
+    SearchAllIamPoliciesRequest request =
+        SearchAllIamPoliciesRequest.newBuilder()
+            .setScope(scope)
+            .setQuery(query)
+            .setPageSize(pageSize)
+            .setPageToken(pageToken)
+            .build();
+
+    // Initialize client that will be used to send requests. This client only needs to be created
+    // once, and can be reused for multiple requests. After completing all of your requests, call
+    // the "close" method on the client to safely clean up any remaining background resources.
+    try (AssetServiceClient client = AssetServiceClient.create()) {
+      SearchAllIamPoliciesPagedResponse response = client.searchAllIamPolicies(request);
+      System.out.println("Search completed successfully:\n" + response.getPage().getValues());
+    } catch (IOException e) {
+      System.out.println(String.format("Failed to create client:%n%s", e.toString()));
+    } catch (InvalidArgumentException e) {
+      System.out.println(String.format("Invalid request:%n%s", e.toString()));
+    } catch (ApiException e) {
+      System.out.println(String.format("Error during SearchAllIamPolicies:%n%s", e.toString()));
+    }
+  }
+}
+// [END asset_quickstart_search_all_iam_policies]

asset/src/main/java/com/example/asset/SearchAllResourcesExample.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2020 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.asset;
+
+// [START asset_quickstart_search_all_resources]
+import com.google.api.gax.rpc.ApiException;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.cloud.asset.v1.AssetServiceClient;
+import com.google.cloud.asset.v1.AssetServiceClient.SearchAllResourcesPagedResponse;
+import com.google.cloud.asset.v1.SearchAllResourcesRequest;
+import java.io.IOException;
+import java.util.Arrays;
+
+public class SearchAllResourcesExample {
+
+  // Searches for all the resources within the given scope.
+  public static void searchAllResources(String scope, String query) {
+    // TODO(developer): Replace these variables before running the sample.
+    String[] assetTypes = {};
+    int pageSize = 0;
+    String pageToken = "";
+    String orderBy = "";
+
+    SearchAllResourcesRequest request =
+        SearchAllResourcesRequest.newBuilder()
+            .setScope(scope)
+            .setQuery(query)
+            .addAllAssetTypes(Arrays.asList(assetTypes))
+            .setPageSize(pageSize)
+            .setPageToken(pageToken)
+            .setOrderBy(orderBy)
+            .build();
+
+    // Initialize client that will be used to send requests. This client only needs to be created
+    // once, and can be reused for multiple requests. After completing all of your requests, call
+    // the "close" method on the client to safely clean up any remaining background resources.
+    try (AssetServiceClient client = AssetServiceClient.create()) {
+      SearchAllResourcesPagedResponse response = client.searchAllResources(request);
+      System.out.println("Search completed successfully:\n" + response.getPage().getValues());
+    } catch (IOException e) {
+      System.out.println(String.format("Failed to create client:%n%s", e.toString()));
+    } catch (InvalidArgumentException e) {
+      System.out.println(String.format("Invalid request:%n%s",  e.toString()));
+    } catch (ApiException e) {
+      System.out.println(String.format("Error during SearchAllResources:%n%s",  e.toString()));
+    }
+  }
+}
+// [END asset_quickstart_search_all_resources]

asset/src/test/java/com/example/asset/Search.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2020 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.asset;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.cloud.bigquery.BigQuery;
+import com.google.cloud.bigquery.BigQuery.DatasetDeleteOption;
+import com.google.cloud.bigquery.BigQueryOptions;
+import com.google.cloud.bigquery.DatasetId;
+import com.google.cloud.bigquery.DatasetInfo;
+import com.google.cloud.bigquery.testing.RemoteBigQueryHelper;
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests for search samples. */
+@RunWith(JUnit4.class)
+@SuppressWarnings("checkstyle:abbreviationaswordinname")
+public class Search {
+
+  private static final String projectId = System.getenv("GOOGLE_CLOUD_PROJECT");
+  private static final String datasetName = RemoteBigQueryHelper.generateDatasetName();
+  private ByteArrayOutputStream bout;
+  private PrintStream out;
+  private BigQuery bigquery;
+
+  @Before
+  public void setUp() {
+    bigquery = BigQueryOptions.getDefaultInstance().getService();
+    if (bigquery.getDataset(datasetName) == null) {
+      bigquery.create(DatasetInfo.newBuilder(datasetName).build());
+    }
+    bout = new ByteArrayOutputStream();
+    out = new PrintStream(bout);
+    System.setOut(out);
+  }
+
+  @After
+  public void tearDown() {
+    System.setOut(null);
+    bout.reset();
+    DatasetId datasetId = DatasetId.of(bigquery.getOptions().getProjectId(), datasetName);
+    bigquery.delete(datasetId, DatasetDeleteOption.deleteContents());
+  }
+
+  @Test
+  public void testSearchAllResourcesExample() throws Exception {
+    // Wait 10 seconds to let dataset creation event go to CAI
+    Thread.sleep(10000);
+    String scope = "projects/" + projectId;
+    String query = "name:" + datasetName;
+    SearchAllResourcesExample.searchAllResources(scope, query);
+    String got = bout.toString();
+    assertThat(got).contains(datasetName);
+  }
+
+  @Test
+  public void testSearchAllIamPoliciesExample() throws Exception {
+    String scope = "projects/" + projectId;
+    String query = "policy:roles/owner";
+    SearchAllIamPoliciesExample.searchAllIamPolicies(scope, query);
+    String got = bout.toString();
+    assertThat(got).contains("roles/owner");
+  }
+}