Examples with ReadSession com.google.cloud.bigquery.storage.v1beta2.ReadSession used on opensource projects

Example 21 with ReadSession

use of com.google.cloud.bigquery.storage.v1beta2.ReadSession in project beam by apache.

the class BigQueryIOStorageReadTest method testFractionConsumedWithSplitArrow.

@Test
public void testFractionConsumedWithSplitArrow() throws Exception {
    ReadSession readSession = ReadSession.newBuilder().setName("readSession").setArrowSchema(ArrowSchema.newBuilder().setSerializedSchema(serializeArrowSchema(ARROW_SCHEMA)).build()).setDataFormat(DataFormat.ARROW).build();
    ReadRowsRequest expectedRequest = ReadRowsRequest.newBuilder().setReadStream("parentStream").build();
    List<String> names = Arrays.asList("A", "B", "C", "D", "E", "F", "G");
    List<Long> values = Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L, 7L);
    List<ReadRowsResponse> parentResponse = Lists.newArrayList(createResponseArrow(ARROW_SCHEMA, names.subList(0, 2), values.subList(0, 2), 0.0, 0.25), createResponseArrow(ARROW_SCHEMA, names.subList(2, 4), values.subList(2, 4), 0.3, 0.5), createResponseArrow(ARROW_SCHEMA, names.subList(4, 7), values.subList(4, 7), 0.7, 0.875));
    StorageClient fakeStorageClient = mock(StorageClient.class);
    when(fakeStorageClient.readRows(expectedRequest, "")).thenReturn(new FakeBigQueryServerStream<>(parentResponse));
    when(fakeStorageClient.splitReadStream(SplitReadStreamRequest.newBuilder().setName("parentStream").setFraction(0.5f).build())).thenReturn(SplitReadStreamResponse.newBuilder().setPrimaryStream(ReadStream.newBuilder().setName("primaryStream")).setRemainderStream(ReadStream.newBuilder().setName("remainderStream")).build());
    List<ReadRowsResponse> primaryResponses = Lists.newArrayList(createResponseArrow(ARROW_SCHEMA, names.subList(1, 3), values.subList(1, 3), 0.25, 0.75), createResponseArrow(ARROW_SCHEMA, names.subList(3, 4), values.subList(3, 4), 0.8, 1.0));
    when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream("primaryStream").setOffset(1).build(), "")).thenReturn(new FakeBigQueryServerStream<>(primaryResponses));
    BigQueryStorageStreamSource<TableRow> streamSource = BigQueryStorageStreamSource.create(readSession, ReadStream.newBuilder().setName("parentStream").build(), TABLE_SCHEMA, new TableRowParser(), TableRowJsonCoder.of(), new FakeBigQueryServices().withStorageClient(fakeStorageClient));
    BoundedReader<TableRow> reader = streamSource.createReader(options);
    // Before call to BoundedReader#start, fraction consumed must be zero.
    assertEquals(0.0, reader.getFractionConsumed(), DELTA);
    // Reads A.
    assertTrue(reader.start());
    assertEquals(0.125, reader.getFractionConsumed(), DELTA);
    reader.splitAtFraction(0.5);
    assertEquals(0.125, reader.getFractionConsumed(), DELTA);
    // Reads B.
    assertTrue(reader.advance());
    assertEquals(0.5, reader.getFractionConsumed(), DELTA);
    // Reads C.
    assertTrue(reader.advance());
    assertEquals(0.75, reader.getFractionConsumed(), DELTA);
    // Reads D.
    assertTrue(reader.advance());
    assertEquals(1.0, reader.getFractionConsumed(), DELTA);
    assertFalse(reader.advance());
    assertEquals(1.0, reader.getFractionConsumed(), DELTA);
}

Example 22 with ReadSession

use of com.google.cloud.bigquery.storage.v1beta2.ReadSession in project beam by apache.

the class BigQueryIOStorageReadTest method testReadFromBigQueryIOWithTrimmedSchema.

@Test
public void testReadFromBigQueryIOWithTrimmedSchema() throws Exception {
    fakeDatasetService.createDataset("foo.com:project", "dataset", "", "", null);
    TableReference tableRef = BigQueryHelpers.parseTableSpec("foo.com:project:dataset.table");
    Table table = new Table().setTableReference(tableRef).setNumBytes(10L).setSchema(TABLE_SCHEMA);
    fakeDatasetService.createTable(table);
    CreateReadSessionRequest expectedCreateReadSessionRequest = CreateReadSessionRequest.newBuilder().setParent("projects/project-id").setReadSession(ReadSession.newBuilder().setTable("projects/foo.com:project/datasets/dataset/tables/table").setReadOptions(ReadSession.TableReadOptions.newBuilder().addSelectedFields("name")).setDataFormat(DataFormat.AVRO)).setMaxStreamCount(10).build();
    ReadSession readSession = ReadSession.newBuilder().setName("readSessionName").setAvroSchema(AvroSchema.newBuilder().setSchema(TRIMMED_AVRO_SCHEMA_STRING)).addStreams(ReadStream.newBuilder().setName("streamName")).setDataFormat(DataFormat.AVRO).build();
    ReadRowsRequest expectedReadRowsRequest = ReadRowsRequest.newBuilder().setReadStream("streamName").build();
    List<GenericRecord> records = Lists.newArrayList(createRecord("A", TRIMMED_AVRO_SCHEMA), createRecord("B", TRIMMED_AVRO_SCHEMA), createRecord("C", TRIMMED_AVRO_SCHEMA), createRecord("D", TRIMMED_AVRO_SCHEMA));
    List<ReadRowsResponse> readRowsResponses = Lists.newArrayList(createResponse(TRIMMED_AVRO_SCHEMA, records.subList(0, 2), 0.0, 0.50), createResponse(TRIMMED_AVRO_SCHEMA, records.subList(2, 4), 0.5, 0.75));
    StorageClient fakeStorageClient = mock(StorageClient.class, withSettings().serializable());
    when(fakeStorageClient.createReadSession(expectedCreateReadSessionRequest)).thenReturn(readSession);
    when(fakeStorageClient.readRows(expectedReadRowsRequest, "")).thenReturn(new FakeBigQueryServerStream<>(readRowsResponses));
    PCollection<TableRow> output = p.apply(BigQueryIO.readTableRows().from("foo.com:project:dataset.table").withMethod(Method.DIRECT_READ).withSelectedFields(Lists.newArrayList("name")).withFormat(DataFormat.AVRO).withTestServices(new FakeBigQueryServices().withDatasetService(fakeDatasetService).withStorageClient(fakeStorageClient)));
    PAssert.that(output).containsInAnyOrder(ImmutableList.of(new TableRow().set("name", "A"), new TableRow().set("name", "B"), new TableRow().set("name", "C"), new TableRow().set("name", "D")));
    p.run();
}

Example 23 with ReadSession

use of com.google.cloud.bigquery.storage.v1beta2.ReadSession in project beam by apache.

the class BigQueryIOStorageReadTest method testFractionConsumedWithSplit.

@Test
public void testFractionConsumedWithSplit() throws Exception {
    ReadSession readSession = ReadSession.newBuilder().setName("readSession").setAvroSchema(AvroSchema.newBuilder().setSchema(AVRO_SCHEMA_STRING)).build();
    ReadRowsRequest expectedRequest = ReadRowsRequest.newBuilder().setReadStream("parentStream").build();
    List<GenericRecord> records = Lists.newArrayList(createRecord("A", 1, AVRO_SCHEMA), createRecord("B", 2, AVRO_SCHEMA), createRecord("C", 3, AVRO_SCHEMA), createRecord("D", 4, AVRO_SCHEMA), createRecord("E", 5, AVRO_SCHEMA), createRecord("F", 6, AVRO_SCHEMA), createRecord("G", 7, AVRO_SCHEMA));
    List<ReadRowsResponse> parentResponses = Lists.newArrayList(createResponse(AVRO_SCHEMA, records.subList(0, 2), 0.000, 0.250), createResponse(AVRO_SCHEMA, records.subList(2, 4), 0.300, 0.500), createResponse(AVRO_SCHEMA, records.subList(4, 7), 0.800, 0.875));
    StorageClient fakeStorageClient = mock(StorageClient.class);
    when(fakeStorageClient.readRows(expectedRequest, "")).thenReturn(new FakeBigQueryServerStream<>(parentResponses));
    when(fakeStorageClient.splitReadStream(SplitReadStreamRequest.newBuilder().setName("parentStream").setFraction(0.5f).build())).thenReturn(SplitReadStreamResponse.newBuilder().setPrimaryStream(ReadStream.newBuilder().setName("primaryStream")).setRemainderStream(ReadStream.newBuilder().setName("remainderStream")).build());
    List<ReadRowsResponse> primaryResponses = Lists.newArrayList(createResponse(AVRO_SCHEMA, records.subList(1, 3), 0.25, 0.75), createResponse(AVRO_SCHEMA, records.subList(3, 4), 0.8, 1.0));
    when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream("primaryStream").setOffset(1).build(), "")).thenReturn(new FakeBigQueryServerStream<>(primaryResponses));
    BigQueryStorageStreamSource<TableRow> streamSource = BigQueryStorageStreamSource.create(readSession, ReadStream.newBuilder().setName("parentStream").build(), TABLE_SCHEMA, new TableRowParser(), TableRowJsonCoder.of(), new FakeBigQueryServices().withStorageClient(fakeStorageClient));
    BoundedReader<TableRow> reader = streamSource.createReader(options);
    // Before call to BoundedReader#start, fraction consumed must be zero.
    assertEquals(0.0, reader.getFractionConsumed(), DELTA);
    // Reads A.
    assertTrue(reader.start());
    assertEquals(0.125, reader.getFractionConsumed(), DELTA);
    reader.splitAtFraction(0.5);
    assertEquals(0.125, reader.getFractionConsumed(), DELTA);
    // Reads B.
    assertTrue(reader.advance());
    assertEquals(0.5, reader.getFractionConsumed(), DELTA);
    // Reads C.
    assertTrue(reader.advance());
    assertEquals(0.75, reader.getFractionConsumed(), DELTA);
    // Reads D.
    assertTrue(reader.advance());
    assertEquals(1.0, reader.getFractionConsumed(), DELTA);
    assertFalse(reader.advance());
    assertEquals(1.0, reader.getFractionConsumed(), DELTA);
}

Example 24 with ReadSession

use of com.google.cloud.bigquery.storage.v1beta2.ReadSession in project spark-bigquery-connector by GoogleCloudDataproc.

the class ReadSessionCreatorTest method testSerializedInstanceIsPropagated.

@Test
public void testSerializedInstanceIsPropagated() throws Exception {
    TableReadOptions tableReadOptions = TableReadOptions.newBuilder().build();
    ReadSession readSession = ReadSession.newBuilder().setName("abc").setReadOptions(tableReadOptions).build();
    CreateReadSessionRequest request = CreateReadSessionRequest.newBuilder().setReadSession(readSession).build();
    Optional<String> encodedBase = Optional.of(java.util.Base64.getEncoder().encodeToString(request.toByteArray()));
    ReadSessionCreatorConfig config = new ReadSessionCreatorConfigBuilder().setRequestEncodedBase(encodedBase).build();
    ReadSessionCreator creator = new ReadSessionCreator(config, bigQueryClient, bigQueryReadClientFactory);
    when(bigQueryReadClientFactory.getBigQueryReadClient()).thenReturn(readClient);
    when(bigQueryClient.getTable(any())).thenReturn(table);
    when(stub.createReadSessionCallable()).thenReturn(createReadSessionCall);
    creator.create(TableId.of("dataset", "table"), ImmutableList.of("col1", "col2"), Optional.empty()).getReadSession();
    ArgumentCaptor<CreateReadSessionRequest> requestCaptor = ArgumentCaptor.forClass(CreateReadSessionRequest.class);
    verify(createReadSessionCall, times(1)).call(requestCaptor.capture());
    ReadSession actual = requestCaptor.getValue().getReadSession();
    assertThat(actual.getName()).isEqualTo("abc");
    assertThat(actual.getReadOptions().getSelectedFieldsList()).containsExactly("col1", "col2");
}

Example 25 with ReadSession

use of com.google.cloud.bigquery.storage.v1beta2.ReadSession in project spark-bigquery-connector by GoogleCloudDataproc.

the class BigQueryDataSourceReaderContext method planBatchInputPartitionContexts.

public Stream<InputPartitionContext<ColumnarBatch>> planBatchInputPartitionContexts() {
    if (!enableBatchRead()) {
        throw new IllegalStateException("Batch reads should not be enabled");
    }
    ImmutableList<String> selectedFields = schema.map(requiredSchema -> ImmutableList.copyOf(requiredSchema.fieldNames())).orElse(ImmutableList.copyOf(fields.keySet()));
    Optional<String> filter = getCombinedFilter();
    ReadSessionResponse readSessionResponse = readSessionCreator.create(tableId, selectedFields, filter);
    ReadSession readSession = readSessionResponse.getReadSession();
    logger.info("Created read session for {}: {} for application id: {}", tableId.toString(), readSession.getName(), applicationId);
    if (selectedFields.isEmpty()) {
        // means select *
        Schema tableSchema = SchemaConverters.getSchemaWithPseudoColumns(readSessionResponse.getReadTableInfo());
        selectedFields = tableSchema.getFields().stream().map(Field::getName).collect(ImmutableList.toImmutableList());
    }
    ImmutableList<String> partitionSelectedFields = selectedFields;
    return Streams.stream(Iterables.partition(readSession.getStreamsList(), readSessionCreatorConfig.streamsPerPartition())).map(streams -> new ArrowInputPartitionContext(bigQueryReadClientFactory, bigQueryTracerFactory, streams.stream().map(ReadStream::getName).collect(Collectors.toCollection(ArrayList::new)), readSessionCreatorConfig.toReadRowsHelperOptions(), partitionSelectedFields, readSessionResponse, userProvidedSchema));
}