Examples with ParameterRewriter io.trino.sql.planner.ParameterRewriter used on opensource projects

Example 1 with ParameterRewriter

use of io.trino.sql.planner.ParameterRewriter in project trino by trinodb.

the class PropertyUtil method evaluateProperty.

private static Object evaluateProperty(Expression expression, PropertyMetadata<?> property, Session session, PlannerContext plannerContext, AccessControl accessControl, Map<NodeRef<Parameter>, Expression> parameters, ErrorCodeSupplier errorCode, String propertyTypeDescription) {
    Object sqlObjectValue;
    try {
        Type expectedType = property.getSqlType();
        Expression rewritten = ExpressionTreeRewriter.rewriteWith(new ParameterRewriter(parameters), expression);
        Object value = evaluateConstantExpression(rewritten, expectedType, plannerContext, session, accessControl, parameters);
        // convert to object value type of SQL type
        BlockBuilder blockBuilder = expectedType.createBlockBuilder(null, 1);
        writeNativeValue(expectedType, blockBuilder, value);
        sqlObjectValue = expectedType.getObjectValue(session.toConnectorSession(), blockBuilder, 0);
    } catch (TrinoException e) {
        throw new TrinoException(errorCode, format("Invalid value for %s '%s': Cannot convert [%s] to %s", propertyTypeDescription, property.getName(), expression, property.getSqlType()), e);
    }
    if (sqlObjectValue == null) {
        throw new TrinoException(errorCode, format("Invalid null value for %s '%s' from [%s]", propertyTypeDescription, property.getName(), expression));
    }
    try {
        return property.decode(sqlObjectValue);
    } catch (Exception e) {
        throw new TrinoException(errorCode, format("Unable to set %s '%s' to [%s]: %s", propertyTypeDescription, property.getName(), expression, e.getMessage()), e);
    }
}

Example 2 with ParameterRewriter

use of io.trino.sql.planner.ParameterRewriter in project trino by trinodb.

the class CallTask method execute.

@Override
public ListenableFuture<Void> execute(Call call, QueryStateMachine stateMachine, List<Expression> parameters, WarningCollector warningCollector) {
    if (!transactionManager.isAutoCommit(stateMachine.getSession().getRequiredTransactionId())) {
        throw new TrinoException(NOT_SUPPORTED, "Procedures cannot be called within a transaction (use autocommit mode)");
    }
    Session session = stateMachine.getSession();
    QualifiedObjectName procedureName = createQualifiedObjectName(session, call, call.getName());
    CatalogName catalogName = plannerContext.getMetadata().getCatalogHandle(stateMachine.getSession(), procedureName.getCatalogName()).orElseThrow(() -> semanticException(CATALOG_NOT_FOUND, call, "Catalog '%s' does not exist", procedureName.getCatalogName()));
    Procedure procedure = procedureRegistry.resolve(catalogName, procedureName.asSchemaTableName());
    // map declared argument names to positions
    Map<String, Integer> positions = new HashMap<>();
    for (int i = 0; i < procedure.getArguments().size(); i++) {
        positions.put(procedure.getArguments().get(i).getName(), i);
    }
    // per specification, do not allow mixing argument types
    Predicate<CallArgument> hasName = argument -> argument.getName().isPresent();
    boolean anyNamed = call.getArguments().stream().anyMatch(hasName);
    boolean allNamed = call.getArguments().stream().allMatch(hasName);
    if (anyNamed && !allNamed) {
        throw semanticException(INVALID_ARGUMENTS, call, "Named and positional arguments cannot be mixed");
    }
    // get the argument names in call order
    Map<String, CallArgument> names = new LinkedHashMap<>();
    for (int i = 0; i < call.getArguments().size(); i++) {
        CallArgument argument = call.getArguments().get(i);
        if (argument.getName().isPresent()) {
            String name = argument.getName().get().getCanonicalValue();
            if (names.put(name, argument) != null) {
                throw semanticException(INVALID_ARGUMENTS, argument, "Duplicate procedure argument: %s", name);
            }
            if (!positions.containsKey(name)) {
                throw semanticException(INVALID_ARGUMENTS, argument, "Unknown argument name: %s", name);
            }
        } else if (i < procedure.getArguments().size()) {
            names.put(procedure.getArguments().get(i).getName(), argument);
        } else {
            throw semanticException(INVALID_ARGUMENTS, call, "Too many arguments for procedure");
        }
    }
    procedure.getArguments().stream().filter(Argument::isRequired).filter(argument -> !names.containsKey(argument.getName())).map(Argument::getName).findFirst().ifPresent(argument -> {
        throw semanticException(INVALID_ARGUMENTS, call, "Required procedure argument '%s' is missing", argument);
    });
    // get argument values
    Object[] values = new Object[procedure.getArguments().size()];
    Map<NodeRef<Parameter>, Expression> parameterLookup = parameterExtractor(call, parameters);
    for (Entry<String, CallArgument> entry : names.entrySet()) {
        CallArgument callArgument = entry.getValue();
        int index = positions.get(entry.getKey());
        Argument argument = procedure.getArguments().get(index);
        Expression expression = ExpressionTreeRewriter.rewriteWith(new ParameterRewriter(parameterLookup), callArgument.getValue());
        Type type = argument.getType();
        Object value = evaluateConstantExpression(expression, type, plannerContext, session, accessControl, parameterLookup);
        values[index] = toTypeObjectValue(session, type, value);
    }
    // fill values with optional arguments defaults
    for (int i = 0; i < procedure.getArguments().size(); i++) {
        Argument argument = procedure.getArguments().get(i);
        if (!names.containsKey(argument.getName())) {
            verify(argument.isOptional());
            values[i] = toTypeObjectValue(session, argument.getType(), argument.getDefaultValue());
        }
    }
    // validate arguments
    MethodType methodType = procedure.getMethodHandle().type();
    for (int i = 0; i < procedure.getArguments().size(); i++) {
        if ((values[i] == null) && methodType.parameterType(i).isPrimitive()) {
            String name = procedure.getArguments().get(i).getName();
            throw new TrinoException(INVALID_PROCEDURE_ARGUMENT, "Procedure argument cannot be null: " + name);
        }
    }
    // insert session argument
    List<Object> arguments = new ArrayList<>();
    Iterator<Object> valuesIterator = asList(values).iterator();
    for (Class<?> type : methodType.parameterList()) {
        if (ConnectorSession.class.equals(type)) {
            arguments.add(session.toConnectorSession(catalogName));
        } else if (ConnectorAccessControl.class.equals(type)) {
            arguments.add(new InjectedConnectorAccessControl(accessControl, session.toSecurityContext(), catalogName.getCatalogName()));
        } else {
            arguments.add(valuesIterator.next());
        }
    }
    accessControl.checkCanExecuteProcedure(session.toSecurityContext(), procedureName);
    stateMachine.setRoutines(ImmutableList.of(new RoutineInfo(procedureName.getObjectName(), session.getUser())));
    try {
        procedure.getMethodHandle().invokeWithArguments(arguments);
    } catch (Throwable t) {
        if (t instanceof InterruptedException) {
            Thread.currentThread().interrupt();
        }
        throwIfInstanceOf(t, TrinoException.class);
        throw new TrinoException(PROCEDURE_CALL_FAILED, t);
    }
    return immediateVoidFuture();
}

Example 3 with ParameterRewriter

use of io.trino.sql.planner.ParameterRewriter in project trino by trinodb.

the class SessionPropertyManager method evaluatePropertyValue.

public static Object evaluatePropertyValue(Expression expression, Type expectedType, Session session, PlannerContext plannerContext, AccessControl accessControl, Map<NodeRef<Parameter>, Expression> parameters) {
    Expression rewritten = ExpressionTreeRewriter.rewriteWith(new ParameterRewriter(parameters), expression);
    Object value = evaluateConstantExpression(rewritten, expectedType, plannerContext, session, accessControl, parameters);
    // convert to object value type of SQL type
    BlockBuilder blockBuilder = expectedType.createBlockBuilder(null, 1);
    writeNativeValue(expectedType, blockBuilder, value);
    Object objectValue = expectedType.getObjectValue(session.toConnectorSession(), blockBuilder, 0);
    if (objectValue == null) {
        throw new TrinoException(INVALID_SESSION_PROPERTY, "Session property value must not be null");
    }
    return objectValue;
}