Examples with SemanticException com.facebook.presto.sql.analyzer.SemanticException used on opensource projects

Example 31 with SemanticException

use of com.facebook.presto.sql.analyzer.SemanticException in project presto by prestodb.

the class GrantTask method execute.

@Override
public ListenableFuture<?> execute(Grant statement, TransactionManager transactionManager, Metadata metadata, AccessControl accessControl, QueryStateMachine stateMachine, List<Expression> parameters) {
    Session session = stateMachine.getSession();
    QualifiedObjectName tableName = createQualifiedObjectName(session, statement, statement.getTableName());
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, tableName);
    if (!tableHandle.isPresent()) {
        throw new SemanticException(MISSING_TABLE, statement, "Table '%s' does not exist", tableName);
    }
    Set<Privilege> privileges;
    if (statement.getPrivileges().isPresent()) {
        privileges = statement.getPrivileges().get().stream().map(privilege -> parsePrivilege(statement, privilege)).collect(toImmutableSet());
    } else {
        // All privileges
        privileges = EnumSet.allOf(Privilege.class);
    }
    // verify current identity has permissions to grant permissions
    for (Privilege privilege : privileges) {
        accessControl.checkCanGrantTablePrivilege(session.getRequiredTransactionId(), session.getIdentity(), privilege, tableName);
    }
    metadata.grantTablePrivileges(session, tableName, privileges, statement.getGrantee(), statement.isWithGrantOption());
    return immediateFuture(null);
}

Example 32 with SemanticException

use of com.facebook.presto.sql.analyzer.SemanticException in project presto by prestodb.

the class RenameTableTask method execute.

@Override
public ListenableFuture<?> execute(RenameTable statement, TransactionManager transactionManager, Metadata metadata, AccessControl accessControl, QueryStateMachine stateMachine, List<Expression> parameters) {
    Session session = stateMachine.getSession();
    QualifiedObjectName tableName = createQualifiedObjectName(session, statement, statement.getSource());
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, tableName);
    if (!tableHandle.isPresent()) {
        throw new SemanticException(MISSING_TABLE, statement, "Table '%s' does not exist", tableName);
    }
    QualifiedObjectName target = createQualifiedObjectName(session, statement, statement.getTarget());
    if (!metadata.getCatalogHandle(session, target.getCatalogName()).isPresent()) {
        throw new SemanticException(MISSING_CATALOG, statement, "Target catalog '%s' does not exist", target.getCatalogName());
    }
    if (metadata.getTableHandle(session, target).isPresent()) {
        throw new SemanticException(TABLE_ALREADY_EXISTS, statement, "Target table '%s' already exists", target);
    }
    if (!tableName.getCatalogName().equals(target.getCatalogName())) {
        throw new SemanticException(NOT_SUPPORTED, statement, "Table rename across catalogs is not supported");
    }
    accessControl.checkCanRenameTable(session.getRequiredTransactionId(), session.getIdentity(), tableName, target);
    metadata.renameTable(session, tableHandle.get(), target);
    return immediateFuture(null);
}

Example 33 with SemanticException

use of com.facebook.presto.sql.analyzer.SemanticException in project presto by prestodb.

the class RevokeTask method execute.

@Override
public ListenableFuture<?> execute(Revoke statement, TransactionManager transactionManager, Metadata metadata, AccessControl accessControl, QueryStateMachine stateMachine, List<Expression> parameters) {
    Session session = stateMachine.getSession();
    QualifiedObjectName tableName = createQualifiedObjectName(session, statement, statement.getTableName());
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, tableName);
    if (!tableHandle.isPresent()) {
        throw new SemanticException(MISSING_TABLE, statement, "Table '%s' does not exist", tableName);
    }
    Set<Privilege> privileges;
    if (statement.getPrivileges().isPresent()) {
        privileges = statement.getPrivileges().get().stream().map(privilege -> parsePrivilege(statement, privilege)).collect(toImmutableSet());
    } else {
        // All privileges
        privileges = EnumSet.allOf(Privilege.class);
    }
    // verify current identity has permissions to revoke permissions
    for (Privilege privilege : privileges) {
        accessControl.checkCanRevokeTablePrivilege(session.getRequiredTransactionId(), session.getIdentity(), privilege, tableName);
    }
    metadata.revokeTablePrivileges(session, tableName, privileges, statement.getGrantee(), statement.isGrantOptionFor());
    return immediateFuture(null);
}

Example 34 with SemanticException

use of com.facebook.presto.sql.analyzer.SemanticException in project presto by prestodb.

the class UseTask method execute.

@Override
public ListenableFuture<?> execute(Use statement, TransactionManager transactionManager, Metadata metadata, AccessControl accessControl, QueryStateMachine stateMachine, List<Expression> parameters) {
    Session session = stateMachine.getSession();
    if (!statement.getCatalog().isPresent() && !session.getCatalog().isPresent()) {
        throw new SemanticException(CATALOG_NOT_SPECIFIED, statement, "Catalog must be specified when session catalog is not set");
    }
    if (statement.getCatalog().isPresent()) {
        String catalog = statement.getCatalog().get().getValue().toLowerCase(ENGLISH);
        if (!metadata.getCatalogHandle(session, catalog).isPresent()) {
            throw new PrestoException(NOT_FOUND, "Catalog does not exist: " + catalog);
        }
        stateMachine.setSetCatalog(catalog);
    }
    stateMachine.setSetSchema(statement.getSchema().getValue().toLowerCase(ENGLISH));
    return immediateFuture(null);
}

Example 35 with SemanticException

use of com.facebook.presto.sql.analyzer.SemanticException in project presto by prestodb.

the class CallTask method execute.

@Override
public ListenableFuture<?> execute(Call call, TransactionManager transactionManager, Metadata metadata, AccessControl accessControl, Session session, List<Expression> parameters, WarningCollector warningCollector) {
    if (!transactionManager.getTransactionInfo(session.getRequiredTransactionId()).isAutoCommitContext()) {
        throw new PrestoException(NOT_SUPPORTED, "Procedures cannot be called within a transaction (use autocommit mode)");
    }
    QualifiedObjectName procedureName = createQualifiedObjectName(session, call, call.getName());
    ConnectorId connectorId = metadata.getCatalogHandle(session, procedureName.getCatalogName()).orElseThrow(() -> new SemanticException(MISSING_CATALOG, call, "Catalog %s does not exist", procedureName.getCatalogName()));
    Procedure procedure = metadata.getProcedureRegistry().resolve(connectorId, toSchemaTableName(procedureName));
    // 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 new SemanticException(INVALID_PROCEDURE_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();
            if (names.put(name, argument) != null) {
                throw new SemanticException(INVALID_PROCEDURE_ARGUMENTS, argument, "Duplicate procedure argument: %s", name);
            }
            if (!positions.containsKey(name)) {
                throw new SemanticException(INVALID_PROCEDURE_ARGUMENTS, argument, "Unknown argument name: %s", name);
            }
        } else if (i < procedure.getArguments().size()) {
            names.put(procedure.getArguments().get(i).getName(), argument);
        } else {
            throw new SemanticException(INVALID_PROCEDURE_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 new SemanticException(INVALID_PROCEDURE_ARGUMENTS, call, format("Required procedure argument '%s' is missing", argument));
    });
    // get argument values
    Object[] values = new Object[procedure.getArguments().size()];
    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(parameters), callArgument.getValue());
        Type type = metadata.getType(argument.getType());
        checkCondition(type != null, INVALID_PROCEDURE_DEFINITION, "Unknown procedure argument type: %s", argument.getType());
        Object value = evaluateConstantExpression(expression, type, metadata, session, parameters);
        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, metadata.getType(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 PrestoException(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.isAssignableFrom(type)) {
            arguments.add(session.toConnectorSession(connectorId));
        } else {
            arguments.add(valuesIterator.next());
        }
    }
    try {
        procedure.getMethodHandle().invokeWithArguments(arguments);
    } catch (Throwable t) {
        if (t instanceof InterruptedException) {
            Thread.currentThread().interrupt();
        }
        throwIfInstanceOf(t, PrestoException.class);
        throw new PrestoException(PROCEDURE_CALL_FAILED, t);
    }
    return immediateFuture(null);
}