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

Example 11 with ConnectorSession

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

the class InformationSchemaPageSourceProvider method getInternalTable.

private InternalTable getInternalTable(ConnectorTransactionHandle transactionHandle, ConnectorSession connectorSession, ConnectorSplit connectorSplit, List<ColumnHandle> columns) {
    InformationSchemaTransactionHandle transaction = (InformationSchemaTransactionHandle) transactionHandle;
    InformationSchemaSplit split = (InformationSchemaSplit) connectorSplit;
    requireNonNull(columns, "columns is null");
    InformationSchemaTableHandle handle = split.getTableHandle();
    Map<String, NullableValue> filters = split.getFilters();
    Session session = Session.builder(metadata.getSessionPropertyManager()).setTransactionId(transaction.getTransactionId()).setQueryId(new QueryId(connectorSession.getQueryId())).setIdentity(connectorSession.getIdentity()).setSource("information_schema").setCatalog(// default catalog is not be used
    "").setSchema(// default schema is not be used
    "").setTimeZoneKey(connectorSession.getTimeZoneKey()).setLocale(connectorSession.getLocale()).setStartTime(connectorSession.getStartTime()).build();
    return getInformationSchemaTable(session, handle.getCatalogName(), handle.getSchemaTableName(), filters);
}

Example 12 with ConnectorSession

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

the class MetadataManager method getLayouts.

@Override
public List<TableLayoutResult> getLayouts(Session session, TableHandle table, Constraint<ColumnHandle> constraint, Optional<Set<ColumnHandle>> desiredColumns) {
    if (constraint.getSummary().isNone()) {
        return ImmutableList.of();
    }
    ConnectorId connectorId = table.getConnectorId();
    ConnectorTableHandle connectorTable = table.getConnectorHandle();
    CatalogMetadata catalogMetadata = getCatalogMetadata(session, connectorId);
    ConnectorMetadata metadata = catalogMetadata.getMetadataFor(connectorId);
    ConnectorTransactionHandle transaction = catalogMetadata.getTransactionHandleFor(connectorId);
    ConnectorSession connectorSession = session.toConnectorSession(connectorId);
    List<ConnectorTableLayoutResult> layouts = metadata.getTableLayouts(connectorSession, connectorTable, constraint, desiredColumns);
    return layouts.stream().map(layout -> new TableLayoutResult(fromConnectorLayout(connectorId, transaction, layout.getTableLayout()), layout.getUnenforcedConstraint())).collect(toImmutableList());
}

Example 13 with ConnectorSession

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

the class ArrayJoin method specializeArrayJoin.

private static ScalarFunctionImplementation specializeArrayJoin(Map<String, Type> types, FunctionRegistry functionRegistry, List<Boolean> nullableArguments, MethodHandle methodHandle) {
    Type type = types.get("T");
    if (type instanceof UnknownType) {
        return new ScalarFunctionImplementation(false, nullableArguments, methodHandle.bindTo(null), true);
    } else {
        try {
            ScalarFunctionImplementation castFunction = functionRegistry.getScalarFunctionImplementation(internalOperator(CAST.name(), VARCHAR_TYPE_SIGNATURE, ImmutableList.of(type.getTypeSignature())));
            MethodHandle getter;
            Class<?> elementType = type.getJavaType();
            if (elementType == boolean.class) {
                getter = GET_BOOLEAN;
            } else if (elementType == double.class) {
                getter = GET_DOUBLE;
            } else if (elementType == long.class) {
                getter = GET_LONG;
            } else if (elementType == Slice.class) {
                getter = GET_SLICE;
            } else {
                throw new UnsupportedOperationException("Unsupported type: " + elementType.getClass().getName());
            }
            MethodHandle cast = castFunction.getMethodHandle();
            // if the cast doesn't take a ConnectorSession, create an adapter that drops the provided session
            if (cast.type().parameterArray()[0] != ConnectorSession.class) {
                cast = MethodHandles.dropArguments(cast, 0, ConnectorSession.class);
            }
            // Adapt a target cast that takes (ConnectorSession, ?) to one that takes (Block, int, ConnectorSession), which will be invoked by the implementation
            // The first two arguments (Block, int) are filtered through the element type's getXXX method to produce the underlying value that needs to be passed to
            // the cast.
            cast = MethodHandles.permuteArguments(cast, MethodType.methodType(Slice.class, cast.type().parameterArray()[1], cast.type().parameterArray()[0]), 1, 0);
            cast = MethodHandles.dropArguments(cast, 1, int.class);
            cast = MethodHandles.dropArguments(cast, 1, Block.class);
            cast = MethodHandles.foldArguments(cast, getter.bindTo(type));
            MethodHandle target = MethodHandles.insertArguments(methodHandle, 0, cast);
            return new ScalarFunctionImplementation(false, nullableArguments, target, true);
        } catch (PrestoException e) {
            throw new PrestoException(INVALID_FUNCTION_ARGUMENT, format("Input type %s not supported", type), e);
        }
    }
}

Example 14 with ConnectorSession

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

the class RaptorPageSourceProvider method createPageSource.

@Override
public ConnectorPageSource createPageSource(ConnectorTransactionHandle transactionHandle, ConnectorSession session, ConnectorSplit split, List<ColumnHandle> columns) {
    RaptorSplit raptorSplit = (RaptorSplit) split;
    OptionalInt bucketNumber = raptorSplit.getBucketNumber();
    TupleDomain<RaptorColumnHandle> predicate = raptorSplit.getEffectivePredicate();
    ReaderAttributes attributes = ReaderAttributes.from(session);
    OptionalLong transactionId = raptorSplit.getTransactionId();
    if (raptorSplit.getShardUuids().size() == 1) {
        UUID shardUuid = raptorSplit.getShardUuids().iterator().next();
        return createPageSource(shardUuid, bucketNumber, columns, predicate, attributes, transactionId);
    }
    Iterator<ConnectorPageSource> iterator = raptorSplit.getShardUuids().stream().map(shardUuid -> createPageSource(shardUuid, bucketNumber, columns, predicate, attributes, transactionId)).iterator();
    return new ConcatPageSource(iterator);
}

Example 15 with ConnectorSession

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

the class TestRaptorConnector method assertSplitShard.

private void assertSplitShard(Type temporalType, String min, String max, String userTimeZone, int expectedSplits) throws Exception {
    ConnectorSession session = new TestingConnectorSession("user", Optional.of("test"), Optional.empty(), getTimeZoneKey(userTimeZone), ENGLISH, System.currentTimeMillis(), new RaptorSessionProperties(new StorageManagerConfig()).getSessionProperties(), ImmutableMap.of(), true, Optional.empty(), ImmutableSet.of(), Optional.empty(), ImmutableMap.of());
    ConnectorTransactionHandle transaction = connector.beginTransaction(READ_COMMITTED, false);
    connector.getMetadata(transaction).createTable(SESSION, new ConnectorTableMetadata(new SchemaTableName("test", "test"), ImmutableList.of(new ColumnMetadata("id", BIGINT), new ColumnMetadata("time", temporalType)), ImmutableMap.of(TEMPORAL_COLUMN_PROPERTY, "time", TABLE_SUPPORTS_DELTA_DELETE, false)), false);
    connector.commit(transaction);
    ConnectorTransactionHandle txn1 = connector.beginTransaction(READ_COMMITTED, false);
    ConnectorTableHandle handle1 = getTableHandle(connector.getMetadata(txn1), "test");
    ConnectorInsertTableHandle insertTableHandle = connector.getMetadata(txn1).beginInsert(session, handle1);
    ConnectorPageSink raptorPageSink = connector.getPageSinkProvider().createPageSink(txn1, session, insertTableHandle, PageSinkContext.defaultContext());
    Object timestamp1 = null;
    Object timestamp2 = null;
    if (temporalType.equals(TIMESTAMP)) {
        timestamp1 = new SqlTimestamp(parseTimestampLiteral(getTimeZoneKey(userTimeZone), min), getTimeZoneKey(userTimeZone));
        timestamp2 = new SqlTimestamp(parseTimestampLiteral(getTimeZoneKey(userTimeZone), max), getTimeZoneKey(userTimeZone));
    } else if (temporalType.equals(DATE)) {
        timestamp1 = new SqlDate(parseDate(min));
        timestamp2 = new SqlDate(parseDate(max));
    }
    Page inputPage = MaterializedResult.resultBuilder(session, ImmutableList.of(BIGINT, temporalType)).row(1L, timestamp1).row(2L, timestamp2).build().toPage();
    raptorPageSink.appendPage(inputPage);
    Collection<Slice> shards = raptorPageSink.finish().get();
    assertEquals(shards.size(), expectedSplits);
    connector.getMetadata(txn1).dropTable(session, handle1);
    connector.commit(txn1);
}