Examples with ConnectorPageSource com.facebook.presto.spi.ConnectorPageSource used on opensource projects

Example 1 with ConnectorPageSource

use of com.facebook.presto.spi.ConnectorPageSource in project presto by prestodb.

the class TestOrcPageSourceMemoryTracking method testPageSource.

@Test
public void testPageSource() throws Exception {
    // Numbers used in assertions in this test may change when implementation is modified,
    // feel free to change them if they break in the future
    ConnectorPageSource pageSource = testPreparer.newPageSource();
    assertEquals(pageSource.getSystemMemoryUsage(), 0);
    long memoryUsage = -1;
    for (int i = 0; i < 20; i++) {
        assertFalse(pageSource.isFinished());
        Page page = pageSource.getNextPage();
        assertNotNull(page);
        Block block = page.getBlock(1);
        if (memoryUsage == -1) {
            // Memory usage before lazy-loading the block
            assertBetweenInclusive(pageSource.getSystemMemoryUsage(), 180000L, 189999L);
            // trigger loading for lazy block
            createUnboundedVarcharType().getSlice(block, block.getPositionCount() - 1);
            memoryUsage = pageSource.getSystemMemoryUsage();
            // Memory usage after lazy-loading the actual block
            assertBetweenInclusive(memoryUsage, 460000L, 469999L);
        } else {
            assertEquals(pageSource.getSystemMemoryUsage(), memoryUsage);
            // trigger loading for lazy block
            createUnboundedVarcharType().getSlice(block, block.getPositionCount() - 1);
            assertEquals(pageSource.getSystemMemoryUsage(), memoryUsage);
        }
    }
    memoryUsage = -1;
    for (int i = 20; i < 40; i++) {
        assertFalse(pageSource.isFinished());
        Page page = pageSource.getNextPage();
        assertNotNull(page);
        Block block = page.getBlock(1);
        if (memoryUsage == -1) {
            // Memory usage before lazy-loading the block
            assertBetweenInclusive(pageSource.getSystemMemoryUsage(), 180000L, 189999L);
            // trigger loading for lazy block
            createUnboundedVarcharType().getSlice(block, block.getPositionCount() - 1);
            memoryUsage = pageSource.getSystemMemoryUsage();
            // Memory usage after lazy-loading the actual block
            assertBetweenInclusive(memoryUsage, 460000L, 469999L);
        } else {
            assertEquals(pageSource.getSystemMemoryUsage(), memoryUsage);
            // trigger loading for lazy block
            createUnboundedVarcharType().getSlice(block, block.getPositionCount() - 1);
            assertEquals(pageSource.getSystemMemoryUsage(), memoryUsage);
        }
    }
    memoryUsage = -1;
    for (int i = 40; i < 50; i++) {
        assertFalse(pageSource.isFinished());
        Page page = pageSource.getNextPage();
        assertNotNull(page);
        Block block = page.getBlock(1);
        if (memoryUsage == -1) {
            // Memory usage before lazy-loading the block
            assertBetweenInclusive(pageSource.getSystemMemoryUsage(), 90000L, 99999L);
            // trigger loading for lazy block
            createUnboundedVarcharType().getSlice(block, block.getPositionCount() - 1);
            memoryUsage = pageSource.getSystemMemoryUsage();
            // Memory usage after lazy-loading the actual block
            assertBetweenInclusive(memoryUsage, 360000L, 369999L);
        } else {
            assertEquals(pageSource.getSystemMemoryUsage(), memoryUsage);
            // trigger loading for lazy block
            createUnboundedVarcharType().getSlice(block, block.getPositionCount() - 1);
            assertEquals(pageSource.getSystemMemoryUsage(), memoryUsage);
        }
    }
    assertFalse(pageSource.isFinished());
    assertNull(pageSource.getNextPage());
    assertTrue(pageSource.isFinished());
    assertEquals(pageSource.getSystemMemoryUsage(), 0);
    pageSource.close();
}

Example 2 with ConnectorPageSource

use of com.facebook.presto.spi.ConnectorPageSource in project presto by prestodb.

the class AbstractTestHiveClient method testTypesRcTextRecordCursor.

@Test
public void testTypesRcTextRecordCursor() throws Exception {
    try (Transaction transaction = newTransaction()) {
        ConnectorSession session = newSession();
        ConnectorMetadata metadata = transaction.getMetadata();
        if (metadata.getTableHandle(session, new SchemaTableName(database, "presto_test_types_rctext")) == null) {
            return;
        }
        ConnectorTableHandle tableHandle = getTableHandle(metadata, new SchemaTableName(database, "presto_test_types_rctext"));
        ConnectorTableMetadata tableMetadata = metadata.getTableMetadata(session, tableHandle);
        HiveSplit hiveSplit = getHiveSplit(tableHandle);
        List<ColumnHandle> columnHandles = ImmutableList.copyOf(metadata.getColumnHandles(session, tableHandle).values());
        ConnectorPageSourceProvider pageSourceProvider = new HivePageSourceProvider(new HiveClientConfig().setTimeZone(timeZone.getID()), hdfsEnvironment, ImmutableSet.of(new ColumnarTextHiveRecordCursorProvider(hdfsEnvironment)), ImmutableSet.of(), TYPE_MANAGER);
        ConnectorPageSource pageSource = pageSourceProvider.createPageSource(transaction.getTransactionHandle(), session, hiveSplit, columnHandles);
        assertGetRecords(RCTEXT, tableMetadata, hiveSplit, pageSource, columnHandles);
    }
}

Example 3 with ConnectorPageSource

use of com.facebook.presto.spi.ConnectorPageSource in project presto by prestodb.

the class AbstractTestHiveClient method readTable.

private MaterializedResult readTable(Transaction transaction, ConnectorTableHandle tableHandle, List<ColumnHandle> columnHandles, ConnectorSession session, TupleDomain<ColumnHandle> tupleDomain, OptionalInt expectedSplitCount, Optional<HiveStorageFormat> expectedStorageFormat) throws Exception {
    List<ConnectorTableLayoutResult> tableLayoutResults = transaction.getMetadata().getTableLayouts(session, tableHandle, new Constraint<>(tupleDomain, bindings -> true), Optional.empty());
    ConnectorTableLayoutHandle layoutHandle = getOnlyElement(tableLayoutResults).getTableLayout().getHandle();
    List<ConnectorSplit> splits = getAllSplits(splitManager.getSplits(transaction.getTransactionHandle(), session, layoutHandle));
    if (expectedSplitCount.isPresent()) {
        assertEquals(splits.size(), expectedSplitCount.getAsInt());
    }
    ImmutableList.Builder<MaterializedRow> allRows = ImmutableList.builder();
    for (ConnectorSplit split : splits) {
        try (ConnectorPageSource pageSource = pageSourceProvider.createPageSource(transaction.getTransactionHandle(), session, split, columnHandles)) {
            if (expectedStorageFormat.isPresent()) {
                assertPageSourceType(pageSource, expectedStorageFormat.get());
            }
            MaterializedResult result = materializeSourceDataStream(session, pageSource, getTypes(columnHandles));
            allRows.addAll(result.getMaterializedRows());
        }
    }
    return new MaterializedResult(allRows.build(), getTypes(columnHandles));
}

Example 4 with ConnectorPageSource

use of com.facebook.presto.spi.ConnectorPageSource in project presto by prestodb.

the class AbstractTestHiveClientS3 method testGetRecordsS3.

@Test
public void testGetRecordsS3() throws Exception {
    try (Transaction transaction = newTransaction()) {
        ConnectorMetadata metadata = transaction.getMetadata();
        ConnectorSession session = newSession();
        ConnectorTableHandle table = getTableHandle(metadata, tableS3);
        List<ColumnHandle> columnHandles = ImmutableList.copyOf(metadata.getColumnHandles(session, table).values());
        Map<String, Integer> columnIndex = indexColumns(columnHandles);
        List<ConnectorTableLayoutResult> tableLayoutResults = metadata.getTableLayouts(session, table, new Constraint<>(TupleDomain.all(), bindings -> true), Optional.empty());
        HiveTableLayoutHandle layoutHandle = (HiveTableLayoutHandle) getOnlyElement(tableLayoutResults).getTableLayout().getHandle();
        assertEquals(layoutHandle.getPartitions().get().size(), 1);
        ConnectorSplitSource splitSource = splitManager.getSplits(transaction.getTransactionHandle(), session, layoutHandle);
        long sum = 0;
        for (ConnectorSplit split : getAllSplits(splitSource)) {
            try (ConnectorPageSource pageSource = pageSourceProvider.createPageSource(transaction.getTransactionHandle(), session, split, columnHandles)) {
                MaterializedResult result = materializeSourceDataStream(session, pageSource, getTypes(columnHandles));
                for (MaterializedRow row : result) {
                    sum += (Long) row.getField(columnIndex.get("t_bigint"));
                }
            }
        }
        assertEquals(sum, 78300);
    }
}

Example 5 with ConnectorPageSource

use of com.facebook.presto.spi.ConnectorPageSource in project presto by prestodb.

the class TestHiveFileFormats method testCursorProvider.

private void testCursorProvider(HiveRecordCursorProvider cursorProvider, FileSplit split, HiveStorageFormat storageFormat, List<TestColumn> testColumns, int rowCount) throws IOException {
    Properties splitProperties = new Properties();
    splitProperties.setProperty(FILE_INPUT_FORMAT, storageFormat.getInputFormat());
    splitProperties.setProperty(SERIALIZATION_LIB, storageFormat.getSerDe());
    splitProperties.setProperty("columns", Joiner.on(',').join(transform(filter(testColumns, not(TestColumn::isPartitionKey)), TestColumn::getName)));
    splitProperties.setProperty("columns.types", Joiner.on(',').join(transform(filter(testColumns, not(TestColumn::isPartitionKey)), TestColumn::getType)));
    List<HivePartitionKey> partitionKeys = testColumns.stream().filter(TestColumn::isPartitionKey).map(input -> new HivePartitionKey(input.getName(), HiveType.valueOf(input.getObjectInspector().getTypeName()), (String) input.getWriteValue())).collect(toList());
    Optional<ConnectorPageSource> pageSource = HivePageSourceProvider.createHivePageSource(ImmutableSet.of(cursorProvider), ImmutableSet.of(), "test", new Configuration(), SESSION, split.getPath(), OptionalInt.empty(), split.getStart(), split.getLength(), splitProperties, TupleDomain.all(), getColumnHandles(testColumns), partitionKeys, DateTimeZone.getDefault(), TYPE_MANAGER, ImmutableMap.of());
    RecordCursor cursor = ((RecordPageSource) pageSource.get()).getCursor();
    checkCursor(cursor, testColumns, rowCount);
}