@vulcan-sql/extension-driver-ksqldb/src/lib/sqlBuilder.js

ksqlDB driver for VulcanSQL

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.convertSchemaToColumns = exports.buildSQL = exports.isNoOP = exports.addLimit = exports.removeEndingSemiColon = void 0;
const lodash_1 = require("lodash");
const isNullOrUndefine = (value) => (0, lodash_1.isUndefined)(value) || (0, lodash_1.isNull)(value);
const removeEndingSemiColon = (sql) => {
    return sql.replace(/;([ \n]+)?$/, '');
};
exports.removeEndingSemiColon = removeEndingSemiColon;
const addLimit = (sql, limit) => {
    if (isNullOrUndefine(limit))
        return sql;
    return [sql, `LIMIT`, limit].join(' ');
};
exports.addLimit = addLimit;
// Check if there is no operations
const isNoOP = (operations) => {
    if (!isNullOrUndefine(operations.limit))
        return false;
    if (!isNullOrUndefine(operations.offset))
        return false;
    return true;
};
exports.isNoOP = isNoOP;
const buildSQL = (sql, operations) => {
    if ((0, exports.isNoOP)(operations))
        return sql;
    let builtSQL = '';
    // ksqlDB currently does not support subquery
    // OFFSET is not supported, LIMIT syntax is supported >= ksqldb 0.24.0
    // https://github.com/confluentinc/ksql/issues/745
    builtSQL += (0, exports.removeEndingSemiColon)(sql);
    builtSQL = (0, exports.addLimit)(builtSQL, operations.limit);
    builtSQL += ';';
    return builtSQL;
};
exports.buildSQL = buildSQL;
const convertSchemaToColumns = (schema) => {
    // schema example: "`PROFILEID` STRING, `LATITUDE` DOUBLE, `LONGITUDE` DOUBLE"
    return schema
        .replace(/`/g, '')
        .split(', ')
        .map((columnString) => {
        const [name, type] = columnString.split(' ');
        return { name: (0, lodash_1.startCase)((0, lodash_1.lowerCase)(name)), type };
    });
};
exports.convertSchemaToColumns = convertSchemaToColumns;
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