use of com.google.bigtable.v2.ReadRowsResponse in project beam by apache.
the class BigQueryIOStorageReadTest method testReadFromStreamSourceArrow.
@Test
public void testReadFromStreamSourceArrow() 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("readStream").build();
List<String> names = Arrays.asList("A", "B", "C");
List<Long> values = Arrays.asList(1L, 2L, 3L);
List<ReadRowsResponse> responses = Lists.newArrayList(createResponseArrow(ARROW_SCHEMA, names.subList(0, 2), values.subList(0, 2), 0.0, 0.50), createResponseArrow(ARROW_SCHEMA, names.subList(2, 3), values.subList(2, 3), 0.5, 0.75));
StorageClient fakeStorageClient = mock(StorageClient.class);
when(fakeStorageClient.readRows(expectedRequest, "")).thenReturn(new FakeBigQueryServerStream<>(responses));
BigQueryStorageStreamSource<TableRow> streamSource = BigQueryStorageStreamSource.create(readSession, ReadStream.newBuilder().setName("readStream").build(), TABLE_SCHEMA, new TableRowParser(), TableRowJsonCoder.of(), new FakeBigQueryServices().withStorageClient(fakeStorageClient));
List<TableRow> rows = new ArrayList<>();
BoundedReader<TableRow> reader = streamSource.createReader(options);
for (boolean hasNext = reader.start(); hasNext; hasNext = reader.advance()) {
rows.add(reader.getCurrent());
}
System.out.println("Rows: " + rows);
assertEquals(3, rows.size());
}
use of com.google.bigtable.v2.ReadRowsResponse in project beam by apache.
the class BigQueryIOStorageReadTest method testStreamSourceSplitAtFractionFailsWhenParentIsPastSplitPoint.
@Test
public void testStreamSourceSplitAtFractionFailsWhenParentIsPastSplitPoint() throws Exception {
List<ReadRowsResponse> parentResponses = Lists.newArrayList(createResponse(AVRO_SCHEMA, Lists.newArrayList(createRecord("A", 1, AVRO_SCHEMA), createRecord("B", 2, AVRO_SCHEMA)), 0.0, 0.25), createResponse(AVRO_SCHEMA, Lists.newArrayList(createRecord("C", 3, AVRO_SCHEMA)), 0.25, 0.50), createResponse(AVRO_SCHEMA, Lists.newArrayList(createRecord("D", 4, AVRO_SCHEMA), createRecord("E", 5, AVRO_SCHEMA)), 0.5, 0.75));
StorageClient fakeStorageClient = mock(StorageClient.class);
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream("parentStream").build(), "")).thenReturn(new FakeBigQueryServerStream<>(parentResponses));
// Mocks the split call. A response without a primary_stream and remainder_stream means
// that the split is not possible.
// Mocks the split call.
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());
// Mocks the ReadRows calls expected on the primary and residual streams.
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream("primaryStream").setOffset(2).build(), "")).thenThrow(new FailedPreconditionException("Given row offset is invalid for stream.", new StatusRuntimeException(Status.FAILED_PRECONDITION), GrpcStatusCode.of(Code.FAILED_PRECONDITION), /* retryable = */
false));
BigQueryStorageStreamSource<TableRow> streamSource = BigQueryStorageStreamSource.create(ReadSession.newBuilder().setName("readSession").setAvroSchema(AvroSchema.newBuilder().setSchema(AVRO_SCHEMA_STRING)).build(), ReadStream.newBuilder().setName("parentStream").build(), TABLE_SCHEMA, new TableRowParser(), TableRowJsonCoder.of(), new FakeBigQueryServices().withStorageClient(fakeStorageClient));
// Read a few records from the parent stream and ensure that records are returned in the
// prescribed order.
BoundedReader<TableRow> parent = streamSource.createReader(options);
assertTrue(parent.start());
assertEquals("A", parent.getCurrent().get("name"));
assertTrue(parent.advance());
assertEquals("B", parent.getCurrent().get("name"));
assertNull(parent.splitAtFraction(0.5));
// Verify that the parent source still works okay even after an unsuccessful split attempt.
assertTrue(parent.advance());
assertEquals("C", parent.getCurrent().get("name"));
assertTrue(parent.advance());
assertEquals("D", parent.getCurrent().get("name"));
assertTrue(parent.advance());
assertEquals("E", parent.getCurrent().get("name"));
assertFalse(parent.advance());
}
use of com.google.bigtable.v2.ReadRowsResponse 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);
}
use of com.google.bigtable.v2.ReadRowsResponse in project beam by apache.
the class BigQueryIOStorageReadTest method testStreamSourceSplitAtFractionRepeatedArrow.
@Test
public void testStreamSourceSplitAtFractionRepeatedArrow() throws Exception {
List<ReadStream> readStreams = Lists.newArrayList(ReadStream.newBuilder().setName("stream1").build(), ReadStream.newBuilder().setName("stream2").build(), ReadStream.newBuilder().setName("stream3").build());
StorageClient fakeStorageClient = mock(StorageClient.class);
List<String> names = Arrays.asList("A", "B", "C", "D", "E", "F");
List<Long> values = Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L);
List<ReadRowsResponse> parentResponses = 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), 0.25, 0.5), createResponseArrow(ARROW_SCHEMA, names.subList(4, 6), values.subList(4, 6), 0.5, 0.75));
// Mock the initial ReadRows call.
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream(readStreams.get(0).getName()).build(), "")).thenReturn(new FakeBigQueryServerStream<>(parentResponses));
// Mock the first SplitReadStream call.
when(fakeStorageClient.splitReadStream(SplitReadStreamRequest.newBuilder().setName(readStreams.get(0).getName()).setFraction(0.83f).build())).thenReturn(SplitReadStreamResponse.newBuilder().setPrimaryStream(readStreams.get(1)).setRemainderStream(ReadStream.newBuilder().setName("ignored")).build());
List<ReadRowsResponse> otherResponses = Lists.newArrayList(createResponseArrow(ARROW_SCHEMA, names.subList(1, 3), values.subList(1, 3), 0.0, 0.50), createResponseArrow(ARROW_SCHEMA, names.subList(3, 4), values.subList(3, 4), 0.5, 0.75));
// Mock the second ReadRows call.
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream(readStreams.get(1).getName()).setOffset(1).build(), "")).thenReturn(new FakeBigQueryServerStream<>(otherResponses));
// Mock the second SplitReadStream call.
when(fakeStorageClient.splitReadStream(SplitReadStreamRequest.newBuilder().setName(readStreams.get(1).getName()).setFraction(0.75f).build())).thenReturn(SplitReadStreamResponse.newBuilder().setPrimaryStream(readStreams.get(2)).setRemainderStream(ReadStream.newBuilder().setName("ignored")).build());
List<ReadRowsResponse> lastResponses = Lists.newArrayList(createResponseArrow(ARROW_SCHEMA, names.subList(2, 4), values.subList(2, 4), 0.80, 0.90));
// Mock the third ReadRows call.
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream(readStreams.get(2).getName()).setOffset(2).build(), "")).thenReturn(new FakeBigQueryServerStream<>(lastResponses));
BoundedSource<TableRow> source = BigQueryStorageStreamSource.create(ReadSession.newBuilder().setName("readSession").setArrowSchema(ArrowSchema.newBuilder().setSerializedSchema(serializeArrowSchema(ARROW_SCHEMA)).build()).setDataFormat(DataFormat.ARROW).build(), readStreams.get(0), TABLE_SCHEMA, new TableRowParser(), TableRowJsonCoder.of(), new FakeBigQueryServices().withStorageClient(fakeStorageClient));
BoundedReader<TableRow> reader = source.createReader(options);
assertTrue(reader.start());
assertEquals("A", reader.getCurrent().get("name"));
BoundedSource<TableRow> residualSource = reader.splitAtFraction(0.83f);
assertNotNull(residualSource);
assertEquals("A", reader.getCurrent().get("name"));
assertTrue(reader.advance());
assertEquals("B", reader.getCurrent().get("name"));
residualSource = reader.splitAtFraction(0.75f);
assertNotNull(residualSource);
assertEquals("B", reader.getCurrent().get("name"));
assertTrue(reader.advance());
assertEquals("C", reader.getCurrent().get("name"));
assertTrue(reader.advance());
assertEquals("D", reader.getCurrent().get("name"));
assertFalse(reader.advance());
}
use of com.google.bigtable.v2.ReadRowsResponse in project beam by apache.
the class BigQueryIOStorageReadTest method testStreamSourceSplitAtFractionSucceeds.
@Test
public void testStreamSourceSplitAtFractionSucceeds() throws Exception {
List<ReadRowsResponse> parentResponses = Lists.newArrayList(createResponse(AVRO_SCHEMA, Lists.newArrayList(createRecord("A", 1, AVRO_SCHEMA), createRecord("B", 2, AVRO_SCHEMA)), 0.0, 0.25), createResponse(AVRO_SCHEMA, Lists.newArrayList(createRecord("C", 3, AVRO_SCHEMA)), 0.25, 0.50), createResponse(AVRO_SCHEMA, Lists.newArrayList(createRecord("D", 4, AVRO_SCHEMA), createRecord("E", 5, AVRO_SCHEMA)), 0.50, 0.75));
StorageClient fakeStorageClient = mock(StorageClient.class);
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream("parentStream").build(), "")).thenReturn(new FakeBigQueryServerStream<>(parentResponses));
// Mocks the split call.
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());
// Mocks the ReadRows calls expected on the primary and residual streams.
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream("primaryStream").setOffset(2).build(), "")).thenReturn(new FakeBigQueryServerStream<>(parentResponses.subList(1, 2)));
when(fakeStorageClient.readRows(ReadRowsRequest.newBuilder().setReadStream("remainderStream").build(), "")).thenReturn(new FakeBigQueryServerStream<>(parentResponses.subList(2, parentResponses.size())));
BigQueryStorageStreamSource<TableRow> streamSource = BigQueryStorageStreamSource.create(ReadSession.newBuilder().setName("readSession").setAvroSchema(AvroSchema.newBuilder().setSchema(AVRO_SCHEMA_STRING)).build(), ReadStream.newBuilder().setName("parentStream").build(), TABLE_SCHEMA, new TableRowParser(), TableRowJsonCoder.of(), new FakeBigQueryServices().withStorageClient(fakeStorageClient));
// Read a few records from the parent stream and ensure that records are returned in the
// prescribed order.
BoundedReader<TableRow> parent = streamSource.createReader(options);
assertTrue(parent.start());
assertEquals("A", parent.getCurrent().get("name"));
assertTrue(parent.advance());
assertEquals("B", parent.getCurrent().get("name"));
// Now split the stream, and ensure that the "parent" reader has been replaced with the
// primary stream and that the returned source points to the residual stream.
BoundedReader<TableRow> primary = parent;
BoundedSource<TableRow> residualSource = parent.splitAtFraction(0.5);
assertNotNull(residualSource);
BoundedReader<TableRow> residual = residualSource.createReader(options);
assertTrue(primary.advance());
assertEquals("C", primary.getCurrent().get("name"));
assertFalse(primary.advance());
assertTrue(residual.start());
assertEquals("D", residual.getCurrent().get("name"));
assertTrue(residual.advance());
assertEquals("E", residual.getCurrent().get("name"));
assertFalse(residual.advance());
}
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