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113 lines
4.2 KiB
113 lines
4.2 KiB
'use strict'; |
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var utils = require('./utils'); |
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var debug = require('./debug'); |
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var RedisClient = require('../').RedisClient; |
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var Command = require('./command'); |
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var noop = function () {}; |
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/********************************************** |
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All documented and exposed API belongs in here |
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**********************************************/ |
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// Redirect calls to the appropriate function and use to send arbitrary / not supported commands |
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RedisClient.prototype.send_command = RedisClient.prototype.sendCommand = function (command, args, callback) { |
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// Throw to fail early instead of relying in order in this case |
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if (typeof command !== 'string') { |
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throw new TypeError('Wrong input type "' + (command !== null && command !== undefined ? command.constructor.name : command) + '" for command name'); |
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} |
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command = command.toLowerCase(); |
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if (!Array.isArray(args)) { |
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if (args === undefined || args === null) { |
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args = []; |
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} else if (typeof args === 'function' && callback === undefined) { |
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callback = args; |
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args = []; |
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} else { |
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throw new TypeError('Wrong input type "' + args.constructor.name + '" for args'); |
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} |
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} |
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if (typeof callback !== 'function' && callback !== undefined) { |
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throw new TypeError('Wrong input type "' + (callback !== null ? callback.constructor.name : 'null') + '" for callback function'); |
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} |
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// Using the raw multi command is only possible with this function |
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// If the command is not yet added to the client, the internal function should be called right away |
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// Otherwise we need to redirect the calls to make sure the internal functions don't get skipped |
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// The internal functions could actually be used for any non hooked function |
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// but this might change from time to time and at the moment there's no good way to distinguish them |
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// from each other, so let's just do it do it this way for the time being |
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if (command === 'multi' || typeof this[command] !== 'function') { |
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return this.internal_send_command(new Command(command, args, callback)); |
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} |
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if (typeof callback === 'function') { |
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args = args.concat([callback]); // Prevent manipulating the input array |
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} |
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return this[command].apply(this, args); |
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}; |
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RedisClient.prototype.end = function (flush) { |
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// Flush queue if wanted |
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if (flush) { |
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this.flush_and_error({ |
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message: 'Connection forcefully ended and command aborted.', |
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code: 'NR_CLOSED' |
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}); |
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} else if (arguments.length === 0) { |
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this.warn( |
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'Using .end() without the flush parameter is deprecated and throws from v.3.0.0 on.\n' + |
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'Please check the doku (https://github.com/NodeRedis/node_redis) and explictly use flush.' |
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); |
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} |
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// Clear retry_timer |
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if (this.retry_timer) { |
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clearTimeout(this.retry_timer); |
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this.retry_timer = null; |
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} |
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this.stream.removeAllListeners(); |
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this.stream.on('error', noop); |
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this.connected = false; |
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this.ready = false; |
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this.closing = true; |
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return this.stream.destroySoon(); |
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}; |
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RedisClient.prototype.unref = function () { |
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if (this.connected) { |
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debug("Unref'ing the socket connection"); |
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this.stream.unref(); |
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} else { |
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debug('Not connected yet, will unref later'); |
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this.once('connect', function () { |
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this.unref(); |
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}); |
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} |
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}; |
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RedisClient.prototype.duplicate = function (options, callback) { |
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if (typeof options === 'function') { |
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callback = options; |
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options = null; |
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} |
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var existing_options = utils.clone(this.options); |
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options = utils.clone(options); |
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for (var elem in options) { |
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existing_options[elem] = options[elem]; |
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} |
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var client = new RedisClient(existing_options); |
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client.selected_db = this.selected_db; |
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if (typeof callback === 'function') { |
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var ready_listener = function () { |
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callback(null, client); |
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client.removeAllListeners(error_listener); |
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}; |
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var error_listener = function (err) { |
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callback(err); |
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client.end(true); |
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}; |
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client.once('ready', ready_listener); |
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client.once('error', error_listener); |
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return; |
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} |
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return client; |
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};
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