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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | 1x 1x 1x 7x 1x 1446x 1446x 103x 103x 23x 23x 103x 103x 103x 103x 103x 103x 103x 103x 1337x 1337x 667x 667x 1337x 1337x 1337x 1337x 1337x 1337x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x | const _ = require('lodash'); const debug = require('debug')('express-cassandra'); const Driver = function f(properties) { this._properties = properties; }; Driver.prototype = { ensure_init(callback) { Iif (!this._properties.cql) { this._properties.init(callback); } else { callback(); } }, execute_definition_query(query, callback) { this.ensure_init((err) => { if (err) { callback(err); return; } debug('executing definition query: %s', query); const properties = this._properties; const conn = properties.define_connection; conn.execute(query, [], { prepare: false, fetchSize: 0 }, callback); }); }, execute_query(query, params, options, callback) { if (arguments.length === 3) { callback = options; options = {}; } const defaults = { prepare: true, }; options = _.defaultsDeep(options, defaults); this.ensure_init((err) => { Iif (err) { callback(err); return; } debug('executing query: %s with params: %j', query, params); this._properties.cql.execute(query, params, options, (err1, result) => { Iif (err1 && err1.code === 8704) { this.execute_definition_query(query, callback); } else { callback(err1, result); } }); }); }, execute_batch(queries, options, callback) { if (arguments.length === 2) { callback = options; options = {}; } const defaults = { prepare: true, }; options = _.defaultsDeep(options, defaults); this.ensure_init((err) => { Iif (err) { callback(err); return; } debug('executing batch queries: %j', queries); this._properties.cql.batch(queries, options, callback); }); }, execute_eachRow(query, params, options, onReadable, callback) { this.ensure_init((err) => { Iif (err) { callback(err); return; } debug('executing eachRow query: %s with params: %j', query, params); this._properties.cql.eachRow(query, params, options, onReadable, callback); }); }, execute_stream(query, params, options, onReadable, callback) { this.ensure_init((err) => { Iif (err) { callback(err); return; } debug('executing stream query: %s with params: %j', query, params); this._properties.cql.stream(query, params, options).on('readable', onReadable).on('end', callback); }); }, }; module.exports = Driver; |