@adexchange/aeg-redis/lib/client.js

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
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};
var __generator = (this && this.__generator) || function (thisArg, body) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
var redis = require("redis");
var events_1 = require("events");
var BBPromise = require("bluebird");
var transaction_1 = require("./transaction");
var batch_1 = require("./batch");
BBPromise.promisifyAll(redis.RedisClient.prototype);
BBPromise.promisifyAll(redis.Multi.prototype);
var SCAN_LIMIT = 1000;
var Redis = (function (_super) {
    __extends(Redis, _super);
    /**
     * Constructor
     */
    function Redis(options) {
        var _this = _super.call(this) || this;
        _this._prefix = options.prefix || '';
        _this._client = redis.createClient(options);
        return _this;
    }
    Object.defineProperty(Redis.prototype, "client", {
        /**
         * Get the underlying redis client
         */
        get: function () {
            return this._client;
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Close the client
     */
    Redis.prototype.dispose = function () {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this._client.quitAsync()];
                    case 1:
                        _a.sent();
                        this._client = null;
                        return [2 /*return*/];
                }
            });
        });
    };
    Object.defineProperty(Redis, "Transaction", {
        /**
         * Return the transaction prototype
         */
        get: function () {
            return transaction_1.default;
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Get a transaction
     */
    Redis.prototype.transaction = function () {
        this._checkDisposed();
        return new transaction_1.default(this);
    };
    /**
     * Watch a key
     */
    Redis.prototype.watch = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.watchAsync(key)];
            });
        });
    };
    /**
     * Begin a batch of commands
     */
    Redis.prototype.batch = function () {
        this._checkDisposed();
        return new batch_1.default(this);
    };
    /**
     * Key exists
     */
    Redis.prototype.exists = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.existsAsync(key)];
            });
        });
    };
    /**
     * Get a key value
     */
    Redis.prototype.get = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.getAsync(key)];
            });
        });
    };
    /**
     * Set a key value
     */
    Redis.prototype.set = function (key, value, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this._checkDisposed();
                        return [4 /*yield*/, this._client.setAsync(key, value)];
                    case 1:
                        _a.sent();
                        return [2 /*return*/, this._checkExpiry(key, options)];
                }
            });
        });
    };
    /**
     * Increment an integer value
     */
    Redis.prototype.incrby = function (key, value, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this._checkDisposed();
                        return [4 /*yield*/, this._client.incrbyAsync(key, value)];
                    case 1:
                        _a.sent();
                        return [2 /*return*/, this._checkExpiry(key, options)];
                }
            });
        });
    };
    /**
     * Increment a float value
     */
    Redis.prototype.incrbyfloat = function (key, value, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this._checkDisposed();
                        return [4 /*yield*/, this._client.incrbyfloatAsync(key, value)];
                    case 1:
                        _a.sent();
                        return [2 /*return*/, this._checkExpiry(key, options)];
                }
            });
        });
    };
    /**
     * Increment an integer value in a hash set
     */
    Redis.prototype.hincrby = function (key, hashKey, value, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this._checkDisposed();
                        return [4 /*yield*/, this._client.hincrbyAsync(key, hashKey, value)];
                    case 1:
                        _a.sent();
                        return [2 /*return*/, this._checkExpiry(key, options)];
                }
            });
        });
    };
    /**
     * Increment a float value in a hash set
     */
    Redis.prototype.hincrbyfloat = function (key, hashKey, value, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this._checkDisposed();
                        return [4 /*yield*/, this._client.hincrbyfloatAsync(key, hashKey, value)];
                    case 1:
                        _a.sent();
                        return [2 /*return*/, this._checkExpiry(key, options)];
                }
            });
        });
    };
    /**
     * Hash map set
     */
    Redis.prototype.hmset = function (key, hash, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this._checkDisposed();
                        return [4 /*yield*/, this._client.hmsetAsync(key, hash)];
                    case 1:
                        _a.sent();
                        return [2 /*return*/, this._checkExpiry(key, options)];
                }
            });
        });
    };
    /**
     * Get a hash set
     */
    Redis.prototype.hgetall = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.hgetallAsync(key)];
            });
        });
    };
    /**
     * Delete a key
     */
    Redis.prototype.del = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.delAsync(key)];
            });
        });
    };
    /**
     * Add to a set
     */
    Redis.prototype.sadd = function (key, value, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this._checkDisposed();
                        return [4 /*yield*/, this._client.saddAsync(key, value)];
                    case 1:
                        _a.sent();
                        return [2 /*return*/, this._checkExpiry(key, options)];
                }
            });
        });
    };
    /**
     * Get a set
     */
    Redis.prototype.smembers = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.smembersAsync(key)];
            });
        });
    };
    /**
     * Remove from set
     */
    Redis.prototype.srem = function (key, value) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.sremAsync(key, value)];
            });
        });
    };
    /**
     * Scan and delete keys
     */
    Redis.prototype.scanDel = function (pattern) {
        return __awaiter(this, void 0, void 0, function () {
            var _this = this;
            var self;
            return __generator(this, function (_a) {
                this._checkDisposed();
                self = this;
                return [2 /*return*/, this.scan(pattern, function (keys) { return __awaiter(_this, void 0, void 0, function () {
                        var _this = this;
                        var keysToDel;
                        return __generator(this, function (_a) {
                            self.emit('info', { message: 'redis#scanDel', data: { keys: keys } });
                            keysToDel = keys.map(function (key) {
                                return key.replace(_this._prefix, '');
                            });
                            return [2 /*return*/, self._client.delAsync(keysToDel)];
                        });
                    }); })];
            });
        });
    };
    /**
     * Scan keys
     */
    Redis.prototype.scan = function (pattern, delegate) {
        return __awaiter(this, void 0, void 0, function () {
            function _scan() {
                return __awaiter(this, void 0, void 0, function () {
                    function processCycle() {
                        return __awaiter(this, void 0, void 0, function () {
                            return __generator(this, function (_a) {
                                switch (_a.label) {
                                    case 0:
                                        if (!(cursor !== '0')) return [3 /*break*/, 2];
                                        return [4 /*yield*/, _scan()];
                                    case 1:
                                        _a.sent();
                                        _a.label = 2;
                                    case 2: return [2 /*return*/];
                                }
                            });
                        });
                    }
                    var res, keys;
                    return __generator(this, function (_a) {
                        switch (_a.label) {
                            case 0: return [4 /*yield*/, self._client.scanAsync(cursor, 'MATCH', resolvedPattern, 'COUNT', SCAN_LIMIT)];
                            case 1:
                                res = _a.sent();
                                cursor = res[0];
                                cycle++;
                                keys = res[1];
                                if (!(keys.length > 0)) return [3 /*break*/, 4];
                                return [4 /*yield*/, delegate(keys)];
                            case 2:
                                _a.sent();
                                self.emit('info', { message: 'redis#scan', data: { cycle: cycle, scanned: SCAN_LIMIT * cycle } });
                                return [4 /*yield*/, processCycle()];
                            case 3:
                                _a.sent();
                                return [3 /*break*/, 6];
                            case 4:
                                self.emit('info', { message: 'redis#scan', data: { cycle: cycle, scanned: SCAN_LIMIT * cycle } });
                                return [4 /*yield*/, processCycle()];
                            case 5:
                                _a.sent();
                                _a.label = 6;
                            case 6: return [2 /*return*/];
                        }
                    });
                });
            }
            var self, resolvedPattern, cursor, cycle;
            return __generator(this, function (_a) {
                this._checkDisposed();
                self = this;
                resolvedPattern = this._prefix + pattern;
                cursor = '0';
                cycle = 0;
                return [2 /*return*/, _scan()];
            });
        });
    };
    /**
     * Get the remaining time of a key
     */
    Redis.prototype.ttl = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                this._checkDisposed();
                return [2 /*return*/, this._client.ttlAsync(key)];
            });
        });
    };
    /**
     * Set the expiry in seconds
     */
    Redis.prototype._checkExpiry = function (key, options) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                if (options && options.expire) {
                    return [2 /*return*/, this._client.expireAsync(key, options.expire)];
                }
                return [2 /*return*/];
            });
        });
    };
    /**
     * Check to make sure this transaction is still open
     */
    Redis.prototype._checkDisposed = function () {
        if (!this._client) {
            throw new Error('Client disposed');
        }
    };
    return Redis;
}(events_1.EventEmitter));
exports.default = Redis;
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