8 lines
6.5 KiB
Plaintext
8 lines
6.5 KiB
Plaintext
{
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"version": 3,
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"sources": ["../../../src/dialects/snowflake/connection-manager.js"],
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"sourcesContent": ["'use strict';\n\nconst AbstractConnectionManager = require('../abstract/connection-manager');\nconst SequelizeErrors = require('../../errors');\nconst { logger } = require('../../utils/logger');\nconst DataTypes = require('../../data-types').snowflake;\nconst debug = logger.debugContext('connection:snowflake');\nconst parserStore = require('../parserStore')('snowflake');\n\n/**\n * Snowflake Connection Manager\n *\n * Get connections, validate and disconnect them.\n *\n * @private\n */\nclass ConnectionManager extends AbstractConnectionManager {\n constructor(dialect, sequelize) {\n sequelize.config.port = sequelize.config.port || 3306;\n super(dialect, sequelize);\n this.lib = this._loadDialectModule('snowflake-sdk');\n this.refreshTypeParser(DataTypes);\n }\n\n _refreshTypeParser(dataType) {\n parserStore.refresh(dataType);\n }\n\n _clearTypeParser() {\n parserStore.clear();\n }\n\n static _typecast(field, next) {\n if (parserStore.get(field.type)) {\n return parserStore.get(field.type)(field, this.sequelize.options, next);\n }\n return next();\n }\n\n /**\n * Connect with a snowflake database based on config, Handle any errors in connection\n * Set the pool handlers on connection.error\n * Also set proper timezone once connection is connected.\n *\n * @param {object} config\n * @returns {Promise<Connection>}\n * @private\n */\n async connect(config) {\n const connectionConfig = {\n account: config.host,\n username: config.username,\n password: config.password,\n database: config.database,\n warehouse: config.warehouse,\n role: config.role,\n /*\n flags: '-FOUND_ROWS',\n timezone: this.sequelize.options.timezone,\n typeCast: ConnectionManager._typecast.bind(this),\n bigNumberStrings: false,\n supportBigNumbers: true,\n */\n ...config.dialectOptions\n };\n\n try {\n\n const connection = await new Promise((resolve, reject) => {\n this.lib.createConnection(connectionConfig).connect((err, conn) => {\n if (err) {\n console.log(err);\n reject(err);\n } else {\n resolve(conn);\n }\n });\n });\n\n debug('connection acquired');\n\n if (!this.sequelize.config.keepDefaultTimezone) {\n // default value is '+00:00', put a quick workaround for it.\n const tzOffset = this.sequelize.options.timezone === '+00:00' ? 'Etc/UTC' : this.sequelize.options.timezone;\n const isNamedTzOffset = /\\//.test(tzOffset);\n if ( isNamedTzOffset ) {\n await new Promise((resolve, reject) => {\n connection.execute({\n sqlText: `ALTER SESSION SET timezone = '${tzOffset}'`,\n complete(err) {\n if (err) {\n console.log(err);\n reject(err);\n } else {\n resolve();\n }\n }\n });\n });\n } else {\n throw Error('only support time zone name for snowflake!');\n }\n }\n\n return connection;\n } catch (err) {\n switch (err.code) {\n case 'ECONNREFUSED':\n throw new SequelizeErrors.ConnectionRefusedError(err);\n case 'ER_ACCESS_DENIED_ERROR':\n throw new SequelizeErrors.AccessDeniedError(err);\n case 'ENOTFOUND':\n throw new SequelizeErrors.HostNotFoundError(err);\n case 'EHOSTUNREACH':\n throw new SequelizeErrors.HostNotReachableError(err);\n case 'EINVAL':\n throw new SequelizeErrors.InvalidConnectionError(err);\n default:\n throw new SequelizeErrors.ConnectionError(err);\n }\n }\n }\n\n async disconnect(connection) {\n // Don't disconnect connections with CLOSED state\n if (!connection.isUp()) {\n debug('connection tried to disconnect but was already at CLOSED state');\n return;\n }\n\n return new Promise((resolve, reject) => {\n connection.destroy(err => {\n if (err) {\n console.error(`Unable to disconnect: ${err.message}`);\n reject(err);\n } else {\n console.log(`Disconnected connection with id: ${connection.getId()}`);\n resolve(connection.getId());\n }\n });\n });\n }\n\n validate(connection) {\n return connection.isUp();\n }\n}\n\nmodule.exports = ConnectionManager;\nmodule.exports.ConnectionManager = ConnectionManager;\nmodule.exports.default = ConnectionManager;\n"],
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"names": []
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