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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 8x 1x 1457x 1457x 114x 114x 26x 26x 114x 114x 114x 114x 114x 114x 114x 114x 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; |