content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * 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
   *
   *     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 org.apache.beam.sdk.extensions.sql;
  
  import static java.nio.charset.StandardCharsets.UTF_8;
  import static org.apache.beam.sdk.schemas.Schema.FieldType.INT64;
  import static org.apache.beam.sdk.schemas.Schema.FieldType.STRING;
  import static org.hamcrest.Matchers.containsInAnyOrder;
  
  import java.io.Serializable;
  import java.util.List;
  import org.apache.beam.sdk.extensions.gcp.options.GcpOptions;
  import org.apache.beam.sdk.io.gcp.bigquery.TestBigQuery;
  import org.apache.beam.sdk.io.gcp.pubsub.PubsubMessage;
  import org.apache.beam.sdk.io.gcp.pubsub.TestPubsub;
  import org.apache.beam.sdk.schemas.Schema;
  import org.apache.beam.sdk.testing.TestPipeline;
  import org.apache.beam.sdk.values.Row;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableMap;
  import org.joda.time.Duration;
  import org.joda.time.Instant;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  
  /** Integration tests form writing to BigQuery with Beam SQL. */
  @RunWith(JUnit4.class)
  public class PubsubToBigqueryIT implements Serializable {
    private static final Schema SOURCE_SCHEMA =
        Schema.builder().addNullableField("id", INT64).addNullableField("name", STRING).build();
  
    @Rule public transient TestPipeline pipeline = TestPipeline.create();
    @Rule public transient TestPubsub pubsub = TestPubsub.create();
    @Rule public transient TestBigQuery bigQuery = TestBigQuery.create(SOURCE_SCHEMA);
  
    @Test
    public void testSimpleInsert() throws Exception {
      String createCatalog = "CREATE CATALOG my_catalog TYPE `local`";
      String setCatalog = "USE CATALOG my_catalog";
      String pubsubTableString =
          "CREATE EXTERNAL TABLE pubsub_topic (\n"
              + "event_timestamp TIMESTAMP, \n"
              + "attributes MAP<VARCHAR, VARCHAR>, \n"
              + "payload ROW< \n"
              + "             id BIGINT, \n"
              + "             name VARCHAR \n"
              + "           > \n"
              + ") \n"
              + "TYPE 'pubsub' \n"
              + "LOCATION '"
              + pubsub.topicPath()
              + "' \n"
              + "TBLPROPERTIES '{ \"timestampAttributeKey\" : \"ts\" }'";
      String bqTableString =
          "CREATE EXTERNAL TABLE bq_table( \n"
              + "   id BIGINT, \n"
              + "   name VARCHAR \n "
              + ") \n"
              + "TYPE 'bigquery' \n"
              + "LOCATION '"
              + bigQuery.tableSpec()
              + "'";
      String insertStatement =
          "INSERT INTO bq_table \n"
              + "SELECT \n"
              + "  pubsub_topic.payload.id, \n"
              + "  pubsub_topic.payload.name \n"
              + "FROM pubsub_topic";
      pipeline.apply(
          SqlTransform.query(insertStatement)
              .withDdlString(createCatalog)
              .withDdlString(setCatalog)
              .withDdlString(pubsubTableString)
              .withDdlString(bqTableString));
      pipeline.run();
  
      // Block until a subscription for this topic exists
      pubsub.assertSubscriptionEventuallyCreated(
          pipeline.getOptions().as(GcpOptions.class).getProject(), Duration.standardMinutes(5));
  
      List<PubsubMessage> messages =
          ImmutableList.of(
              message(ts(1), 3, "foo"), message(ts(2), 5, "bar"), message(ts(3), 7, "baz"));
      pubsub.publish(messages);
  
      bigQuery
          .assertThatAllRows(SOURCE_SCHEMA)
          .eventually(
              containsInAnyOrder(
                  row(SOURCE_SCHEMA, 3L, "foo"),
                  row(SOURCE_SCHEMA, 5L, "bar"),
                  row(SOURCE_SCHEMA, 7L, "baz")))
          .pollFor(Duration.standardMinutes(5));
    }
  
    @Test
    public void testSimpleInsertFlat() throws Exception {
      String pubsubTableString =
          "CREATE EXTERNAL TABLE pubsub_topic (\n"
              + "event_timestamp TIMESTAMP, \n"
              + "id BIGINT, \n"
              + "name VARCHAR \n"
              + ") \n"
              + "TYPE 'pubsub' \n"
              + "LOCATION '"
              + pubsub.topicPath()
              + "' \n"
              + "TBLPROPERTIES '{ \"timestampAttributeKey\" : \"ts\" }'";
      String bqTableString =
          "CREATE EXTERNAL TABLE bq_table( \n"
              + "   id BIGINT, \n"
              + "   name VARCHAR \n "
              + ") \n"
              + "TYPE 'bigquery' \n"
              + "LOCATION '"
              + bigQuery.tableSpec()
              + "'";
      String insertStatement =
          "INSERT INTO bq_table \n" + "SELECT \n" + "  id, \n" + "  name \n" + "FROM pubsub_topic";
  
      pipeline.apply(
          SqlTransform.query(insertStatement)
              .withDdlString(pubsubTableString)
              .withDdlString(bqTableString));
      pipeline.run();
  
      // Block until a subscription for this topic exists
      pubsub.assertSubscriptionEventuallyCreated(
          pipeline.getOptions().as(GcpOptions.class).getProject(), Duration.standardMinutes(5));
  
      List<PubsubMessage> messages =
          ImmutableList.of(
              message(ts(1), 3, "foo"), message(ts(2), 5, "bar"), message(ts(3), 7, "baz"));
      pubsub.publish(messages);
  
      bigQuery
          .assertThatAllRows(SOURCE_SCHEMA)
          .eventually(
              containsInAnyOrder(
                  row(SOURCE_SCHEMA, 3L, "foo"),
                  row(SOURCE_SCHEMA, 5L, "bar"),
                  row(SOURCE_SCHEMA, 7L, "baz")))
          .pollFor(Duration.standardMinutes(5));
    }
  
    private Row row(Schema schema, Object... values) {
      return Row.withSchema(schema).addValues(values).build();
    }
  
    private PubsubMessage message(Instant timestamp, int id, String name) {
      return message(timestamp, jsonString(id, name));
    }
  
    private PubsubMessage message(Instant timestamp, String jsonPayload) {
      return new PubsubMessage(
          jsonPayload.getBytes(UTF_8), ImmutableMap.of("ts", String.valueOf(timestamp.getMillis())));
    }
  
    private String jsonString(int id, String name) {
      return "{ \"id\" : " + id + ", \"name\" : \"" + name + "\" }";
    }
  
    private Instant ts(long millis) {
      return new Instant(millis);
    }
  }
  