sdks/java/extensions/sql/datacatalog/src/test/java/org/apache/beam/sdk/extensions/sql/meta/provider/datacatalog/DataCatalogGCSIT.java

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 * to you 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
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.beam.sdk.extensions.sql.meta.provider.datacatalog;

import static org.apache.beam.sdk.schemas.Schema.FieldType.INT32;
import static org.apache.beam.sdk.schemas.Schema.FieldType.STRING;

import java.io.Serializable;
import org.apache.beam.runners.direct.DirectOptions;
import org.apache.beam.sdk.extensions.sql.SqlTransform;
import org.apache.beam.sdk.schemas.Schema;
import org.apache.beam.sdk.testing.PAssert;
import org.apache.beam.sdk.testing.TestPipeline;
import org.apache.beam.sdk.values.PCollection;
import org.apache.beam.sdk.values.Row;
import org.joda.time.Duration;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Integration tests for DataCatalog+GCS. */
@RunWith(JUnit4.class)
public class DataCatalogGCSIT implements Serializable {

  private static final Schema ID_NAME_TYPE_SCHEMA =
      Schema.builder()
          .addNullableField("id", INT32)
          .addNullableField("name", STRING)
          .addNullableField("type", STRING)
          .build();

  @Rule public transient TestPipeline pipeline = TestPipeline.create();

  @Test
  public void testReadFromGCS() throws Exception {
    String gcsEntryId =
        "`datacatalog`" // this is part of the resource name in DataCatalog, so it has to be
            + ".`entry`" // different from the table provider name ("dc" in this test)
            + ".`apache-beam-testing`"
            + ".`us-central1`"
            + ".`samples`"
            + ".`integ_test_small_csv_test_1`";

    PCollection<Row> result =
        pipeline.apply(
            "query",
            SqlTransform.query("SELECT id, name, type FROM " + gcsEntryId)
                .withDefaultTableProvider(
                    "dc",
                    DataCatalogTableProvider.create(
                        pipeline.getOptions().as(DataCatalogPipelineOptions.class))));

    pipeline.getOptions().as(DirectOptions.class).setBlockOnRun(true);
    PAssert.that(result)
        .containsInAnyOrder(
            row(1, "customer1", "test"),
            row(2, "customer2", "test"),
            row(3, "customer1", "test"),
            row(4, "customer2", "test"));
    pipeline.run().waitUntilFinish(Duration.standardMinutes(2));
  }

  private Row row(int id, String name, String type) {
    return Row.withSchema(ID_NAME_TYPE_SCHEMA).addValues(id, name, type).build();
  }
}