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Example 21 with ConnectorSplit

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

the class JmxSplitManager method getSplits.

@Override
public ConnectorSplitSource getSplits(ConnectorTransactionHandle transaction, ConnectorSession session, ConnectorTableLayoutHandle layout) {
    JmxTableLayoutHandle jmxLayout = (JmxTableLayoutHandle) layout;
    JmxTableHandle tableHandle = jmxLayout.getTable();
    TupleDomain<ColumnHandle> predicate = jmxLayout.getConstraint();
    //TODO is there a better way to get the node column?
    Optional<JmxColumnHandle> nodeColumnHandle = tableHandle.getColumnHandles().stream().filter(jmxColumnHandle -> jmxColumnHandle.getColumnName().equals(NODE_COLUMN_NAME)).findFirst();
    checkState(nodeColumnHandle.isPresent(), "Failed to find %s column", NODE_COLUMN_NAME);
    List<ConnectorSplit> splits = nodeManager.getAllNodes().stream().filter(node -> {
        NullableValue value = NullableValue.of(createUnboundedVarcharType(), utf8Slice(node.getNodeIdentifier()));
        return predicate.overlaps(fromFixedValues(ImmutableMap.of(nodeColumnHandle.get(), value)));
    }).map(node -> new JmxSplit(tableHandle, ImmutableList.of(node.getHostAndPort()))).collect(toList());
    return new FixedSplitSource(splits);
}
Also used : ConnectorSplitManager(com.facebook.presto.spi.connector.ConnectorSplitManager) ConnectorSplitSource(com.facebook.presto.spi.ConnectorSplitSource) NodeManager(com.facebook.presto.spi.NodeManager) ImmutableMap(com.google.common.collect.ImmutableMap) ConnectorTableLayoutHandle(com.facebook.presto.spi.ConnectorTableLayoutHandle) FixedSplitSource(com.facebook.presto.spi.FixedSplitSource) TupleDomain.fromFixedValues(com.facebook.presto.spi.predicate.TupleDomain.fromFixedValues) ConnectorTransactionHandle(com.facebook.presto.spi.connector.ConnectorTransactionHandle) Preconditions.checkState(com.google.common.base.Preconditions.checkState) ConnectorSession(com.facebook.presto.spi.ConnectorSession) Inject(javax.inject.Inject) TupleDomain(com.facebook.presto.spi.predicate.TupleDomain) VarcharType.createUnboundedVarcharType(com.facebook.presto.spi.type.VarcharType.createUnboundedVarcharType) ConnectorSplit(com.facebook.presto.spi.ConnectorSplit) List(java.util.List) NODE_COLUMN_NAME(com.facebook.presto.connector.jmx.JmxMetadata.NODE_COLUMN_NAME) Collectors.toList(java.util.stream.Collectors.toList) ImmutableList(com.google.common.collect.ImmutableList) ColumnHandle(com.facebook.presto.spi.ColumnHandle) Objects.requireNonNull(java.util.Objects.requireNonNull) Optional(java.util.Optional) Slices.utf8Slice(io.airlift.slice.Slices.utf8Slice) NullableValue(com.facebook.presto.spi.predicate.NullableValue) ColumnHandle(com.facebook.presto.spi.ColumnHandle) FixedSplitSource(com.facebook.presto.spi.FixedSplitSource) NullableValue(com.facebook.presto.spi.predicate.NullableValue) ConnectorSplit(com.facebook.presto.spi.ConnectorSplit)

Example 22 with ConnectorSplit

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

the class TestJmxSplitManager method testPredicatePushdown.

@Test
public void testPredicatePushdown() throws Exception {
    for (Node node : nodes) {
        String nodeIdentifier = node.getNodeIdentifier();
        TupleDomain<ColumnHandle> nodeTupleDomain = TupleDomain.fromFixedValues(ImmutableMap.of(columnHandle, NullableValue.of(createUnboundedVarcharType(), utf8Slice(nodeIdentifier))));
        ConnectorTableLayoutHandle layout = new JmxTableLayoutHandle(tableHandle, nodeTupleDomain);
        ConnectorSplitSource splitSource = splitManager.getSplits(JmxTransactionHandle.INSTANCE, SESSION, layout);
        List<ConnectorSplit> allSplits = getAllSplits(splitSource);
        assertEquals(allSplits.size(), 1);
        assertEquals(allSplits.get(0).getAddresses().size(), 1);
        assertEquals(allSplits.get(0).getAddresses().get(0).getHostText(), nodeIdentifier);
    }
}
Also used : ColumnHandle(com.facebook.presto.spi.ColumnHandle) ConnectorTableLayoutHandle(com.facebook.presto.spi.ConnectorTableLayoutHandle) Node(com.facebook.presto.spi.Node) PrestoNode(com.facebook.presto.metadata.PrestoNode) ConnectorSplitSource(com.facebook.presto.spi.ConnectorSplitSource) ConnectorSplit(com.facebook.presto.spi.ConnectorSplit) Test(org.testng.annotations.Test)

Example 23 with ConnectorSplit

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

the class TestJmxSplitManager method testNoPredicate.

@Test
public void testNoPredicate() throws Exception {
    ConnectorTableLayoutHandle layout = new JmxTableLayoutHandle(tableHandle, TupleDomain.all());
    ConnectorSplitSource splitSource = splitManager.getSplits(JmxTransactionHandle.INSTANCE, SESSION, layout);
    List<ConnectorSplit> allSplits = getAllSplits(splitSource);
    assertEquals(allSplits.size(), nodes.size());
    Set<String> actualNodes = nodes.stream().map(Node::getNodeIdentifier).collect(toSet());
    Set<String> expectedNodes = new HashSet<>();
    for (ConnectorSplit split : allSplits) {
        List<HostAddress> addresses = split.getAddresses();
        assertEquals(addresses.size(), 1);
        expectedNodes.add(addresses.get(0).getHostText());
    }
    assertEquals(actualNodes, expectedNodes);
}
Also used : ConnectorTableLayoutHandle(com.facebook.presto.spi.ConnectorTableLayoutHandle) ConnectorSplitSource(com.facebook.presto.spi.ConnectorSplitSource) HostAddress(com.facebook.presto.spi.HostAddress) ConnectorSplit(com.facebook.presto.spi.ConnectorSplit) HashSet(java.util.HashSet) Test(org.testng.annotations.Test)

Example 24 with ConnectorSplit

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

the class AbstractTestHiveClient method testGetRecords.

@Test
public void testGetRecords() throws Exception {
    try (Transaction transaction = newTransaction()) {
        ConnectorMetadata metadata = transaction.getMetadata();
        ConnectorSession session = newSession();
        ConnectorTableHandle tableHandle = getTableHandle(metadata, tablePartitionFormat);
        ConnectorTableMetadata tableMetadata = metadata.getTableMetadata(session, tableHandle);
        List<ColumnHandle> columnHandles = ImmutableList.copyOf(metadata.getColumnHandles(session, tableHandle).values());
        Map<String, Integer> columnIndex = indexColumns(columnHandles);
        List<ConnectorSplit> splits = getAllSplits(tableHandle, TupleDomain.all());
        assertEquals(splits.size(), partitionCount);
        for (ConnectorSplit split : splits) {
            HiveSplit hiveSplit = (HiveSplit) split;
            List<HivePartitionKey> partitionKeys = hiveSplit.getPartitionKeys();
            String ds = partitionKeys.get(0).getValue();
            String fileFormat = partitionKeys.get(1).getValue();
            HiveStorageFormat fileType = HiveStorageFormat.valueOf(fileFormat.toUpperCase());
            int dummyPartition = Integer.parseInt(partitionKeys.get(2).getValue());
            long rowNumber = 0;
            long completedBytes = 0;
            try (ConnectorPageSource pageSource = pageSourceProvider.createPageSource(transaction.getTransactionHandle(), session, hiveSplit, columnHandles)) {
                MaterializedResult result = materializeSourceDataStream(session, pageSource, getTypes(columnHandles));
                assertPageSourceType(pageSource, fileType);
                for (MaterializedRow row : result) {
                    try {
                        assertValueTypes(row, tableMetadata.getColumns());
                    } catch (RuntimeException e) {
                        throw new RuntimeException("row " + rowNumber, e);
                    }
                    rowNumber++;
                    Object value;
                    value = row.getField(columnIndex.get("t_string"));
                    if (rowNumber % 19 == 0) {
                        assertNull(value);
                    } else if (rowNumber % 19 == 1) {
                        assertEquals(value, "");
                    } else {
                        assertEquals(value, "test");
                    }
                    assertEquals(row.getField(columnIndex.get("t_tinyint")), (byte) (1 + rowNumber));
                    assertEquals(row.getField(columnIndex.get("t_smallint")), (short) (2 + rowNumber));
                    assertEquals(row.getField(columnIndex.get("t_int")), 3 + (int) rowNumber);
                    if (rowNumber % 13 == 0) {
                        assertNull(row.getField(columnIndex.get("t_bigint")));
                    } else {
                        assertEquals(row.getField(columnIndex.get("t_bigint")), 4 + rowNumber);
                    }
                    assertEquals((Float) row.getField(columnIndex.get("t_float")), 5.1f + rowNumber, 0.001);
                    assertEquals(row.getField(columnIndex.get("t_double")), 6.2 + rowNumber);
                    if (rowNumber % 3 == 2) {
                        assertNull(row.getField(columnIndex.get("t_boolean")));
                    } else {
                        assertEquals(row.getField(columnIndex.get("t_boolean")), rowNumber % 3 != 0);
                    }
                    assertEquals(row.getField(columnIndex.get("ds")), ds);
                    assertEquals(row.getField(columnIndex.get("file_format")), fileFormat);
                    assertEquals(row.getField(columnIndex.get("dummy")), dummyPartition);
                    long newCompletedBytes = pageSource.getCompletedBytes();
                    assertTrue(newCompletedBytes >= completedBytes);
                    assertTrue(newCompletedBytes <= hiveSplit.getLength());
                    completedBytes = newCompletedBytes;
                }
                assertTrue(completedBytes <= hiveSplit.getLength());
                assertEquals(rowNumber, 100);
            }
        }
    }
}
Also used : ColumnHandle(com.facebook.presto.spi.ColumnHandle) ConnectorPageSource(com.facebook.presto.spi.ConnectorPageSource) Constraint(com.facebook.presto.spi.Constraint) ConnectorTableHandle(com.facebook.presto.spi.ConnectorTableHandle) ConnectorSession(com.facebook.presto.spi.ConnectorSession) TestingConnectorSession(com.facebook.presto.testing.TestingConnectorSession) ConnectorMetadata(com.facebook.presto.spi.connector.ConnectorMetadata) MaterializedResult(com.facebook.presto.testing.MaterializedResult) ConnectorSplit(com.facebook.presto.spi.ConnectorSplit) ConnectorTableMetadata(com.facebook.presto.spi.ConnectorTableMetadata) MaterializedRow(com.facebook.presto.testing.MaterializedRow) Test(org.testng.annotations.Test)

Example 25 with ConnectorSplit

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

the class AbstractTestHiveClient method getAllSplits.

private List<ConnectorSplit> getAllSplits(ConnectorTableHandle tableHandle, TupleDomain<ColumnHandle> tupleDomain) throws InterruptedException {
    try (Transaction transaction = newTransaction()) {
        ConnectorSession session = newSession();
        ConnectorMetadata metadata = transaction.getMetadata();
        List<ConnectorTableLayoutResult> tableLayoutResults = metadata.getTableLayouts(session, tableHandle, new Constraint<>(tupleDomain, bindings -> true), Optional.empty());
        ConnectorTableLayoutHandle layoutHandle = getOnlyElement(tableLayoutResults).getTableLayout().getHandle();
        return getAllSplits(splitManager.getSplits(transaction.getTransactionHandle(), session, layoutHandle));
    }
}
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Aggregations

ConnectorSplit (com.facebook.presto.spi.ConnectorSplit)31 ColumnHandle (com.facebook.presto.spi.ColumnHandle)15 ImmutableList (com.google.common.collect.ImmutableList)15 Test (org.testng.annotations.Test)13 ConnectorSession (com.facebook.presto.spi.ConnectorSession)11 ConnectorSplitSource (com.facebook.presto.spi.ConnectorSplitSource)11 FixedSplitSource (com.facebook.presto.spi.FixedSplitSource)10 List (java.util.List)10 ConnectorPageSource (com.facebook.presto.spi.ConnectorPageSource)9 ConnectorTableHandle (com.facebook.presto.spi.ConnectorTableHandle)9 ConnectorTableLayoutHandle (com.facebook.presto.spi.ConnectorTableLayoutHandle)9 Constraint (com.facebook.presto.spi.Constraint)9 ConnectorMetadata (com.facebook.presto.spi.connector.ConnectorMetadata)8 TupleDomain (com.facebook.presto.spi.predicate.TupleDomain)8 MaterializedResult (com.facebook.presto.testing.MaterializedResult)8 MaterializedRow (com.facebook.presto.testing.MaterializedRow)8 TestingConnectorSession (com.facebook.presto.testing.TestingConnectorSession)8 ConnectorTableLayoutResult (com.facebook.presto.spi.ConnectorTableLayoutResult)7 ConnectorTableMetadata (com.facebook.presto.spi.ConnectorTableMetadata)7 ConnectorSplitManager (com.facebook.presto.spi.connector.ConnectorSplitManager)7