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feat: new sample - Models: List model resources contained in a dataset (
#125)

* feat: new sample - Models: List Models

* update to use hamcrest truth

* update base on comments

* update base on comment

* nit

* nit

* nit update

* nit update
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stephaniewang526 committed Jan 28, 2020
1 parent a03670b commit 3a62206639f50e9d4ae18cc407303cad0c4a6ddb
@@ -39,9 +39,14 @@ public static void listDatasets(String projectId) {
BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();

Page<Dataset> datasets = bigquery.listDatasets(projectId, DatasetListOption.pageSize(100));
for (Dataset dataset : datasets.iterateAll()) {
System.out.println(dataset.getDatasetId() + " dataset in project listed successfully");
if (datasets == null) {
System.out.println("Dataset does not contain any models");
return;
}
datasets
.iterateAll()
.forEach(
dataset -> System.out.printf("Success! Dataset ID: %s ", dataset.getDatasetId()));
} catch (BigQueryException e) {
System.out.println("Project does not contain any datasets \n" + e.toString());
}
@@ -0,0 +1,54 @@
/*
* 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.bigquery;

import com.google.api.gax.paging.Page;
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQuery.ModelListOption;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Model;

// [START bigquery_list_models]
public class ListModels {

public static void runListModels() {
// TODO(developer): Replace these variables before running the sample.
String datasetName = "MY_DATASET_NAME";
listModels(datasetName);
}

public static void listModels(String datasetName) {
try {
// Initialize client that will be used to send requests. This client only needs to be created
// once, and can be reused for multiple requests.
BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();

Page<Model> models = bigquery.listModels(datasetName, ModelListOption.pageSize(100));
if (models == null) {
System.out.println("Dataset does not contain any models.");
return;
}
models
.iterateAll()
.forEach(model -> System.out.printf("Success! Model ID: %s", model.getModelId()));
} catch (BigQueryException e) {
System.out.println("Models not listed in dataset due to error: \n" + e.toString());
}
}
}
// [END bigquery_list_models]
@@ -44,6 +44,6 @@ public void tearDown() {
public void listDatasets() {
// List datasets in bigquery-public-data project
ListDatasets.listDatasets("bigquery-public-data");
assertThat(bout.toString()).contains("dataset in project listed successfully");
assertThat(bout.toString()).contains("Success! Dataset ID");
}
}
@@ -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.bigquery;

import static junit.framework.TestCase.assertNotNull;

import com.google.common.truth.Truth;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

public class ListModelsIT {
private ByteArrayOutputStream bout;
private PrintStream out;

private static final String BIGQUERY_DATASET_NAME = System.getenv("BIGQUERY_DATASET_NAME");

private static void requireEnvVar(String varName) {
assertNotNull(
"Environment variable " + varName + " is required to perform these tests.",
System.getenv(varName));
}

@BeforeClass
public static void checkRequirements() {
requireEnvVar("BIGQUERY_DATASET_NAME");
}

@Before
public void setUp() {
bout = new ByteArrayOutputStream();
out = new PrintStream(bout);
System.setOut(out);
}

@After
public void tearDown() {
System.setOut(null);
}

@Test
public void testListModels() {
ListModels.listModels(BIGQUERY_DATASET_NAME);
Truth.assertThat(bout.toString()).contains("Success! Model ID");
}
}

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