sg-socket-client
Version:
Web socket client for SUGOS
265 lines (226 loc) • 15.8 kB
JavaScript
/**
* Publish/Subscribe feature
* @mixin PubsubExtension
*/
'use strict';
var _regeneratorRuntime = require("@babel/runtime/regenerator");
var _Object$assign = require("@babel/runtime/core-js/object/assign");
var _asyncToGenerator = require("@babel/runtime/helpers/asyncToGenerator");
var _Object$freeze = require("@babel/runtime/core-js/object/freeze");
var _require = require('sg-socket-constants'),
PubsubEvents = _require.PubsubEvents;
var SUBSCRIBE = PubsubEvents.SUBSCRIBE,
UNSUBSCRIBE = PubsubEvents.UNSUBSCRIBE,
RAISE = PubsubEvents.RAISE,
SHUT = PubsubEvents.SHUT,
PUBLISH = PubsubEvents.PUBLISH,
RECEIVE = PubsubEvents.RECEIVE,
COUNT = PubsubEvents.COUNT;
/** @lends PubsubExtension */
var PubsubExtension = _Object$freeze({
/**
* Subscribe topic
* @param {string} topic - Name of topic to subscribe
* @param {function} handler - Event handler
* @returns {Promise}
*/
subscribe: function () {
var _subscribe = _asyncToGenerator(
/*#__PURE__*/
_regeneratorRuntime.mark(function _callee(topic, handler) {
var result, receiver;
return _regeneratorRuntime.wrap(function _callee$(_context) {
while (1) {
switch (_context.prev = _context.next) {
case 0:
receiver = function _ref(data) {
handler(data.payload);
};
this._pubsubReceivers = this._pubsubReceivers || {};
_context.next = 4;
return this.call(SUBSCRIBE, {
topic: topic
});
case 4:
result = _context.sent;
_Object$assign(receiver, {
handler: handler
});
this._pubsubReceivers[topic] = (this._pubsubReceivers[topic] || []).concat(receiver);
this.on(RECEIVE, receiver);
return _context.abrupt("return", result);
case 9:
case "end":
return _context.stop();
}
}
}, _callee, this);
}));
return function subscribe(_x, _x2) {
return _subscribe.apply(this, arguments);
};
}(),
/**
* Unsubscribe topic
* @param {string} topic - Name of topic to subscribe
* @param {function} handler - Event handler
* @returns {Promise}
*/
unsubscribe: function () {
var _unsubscribe = _asyncToGenerator(
/*#__PURE__*/
_regeneratorRuntime.mark(function _callee2(topic, handler) {
var _this = this;
var result;
return _regeneratorRuntime.wrap(function _callee2$(_context2) {
while (1) {
switch (_context2.prev = _context2.next) {
case 0:
this._pubsubReceivers = this._pubsubReceivers || {};
_context2.next = 3;
return this.call(UNSUBSCRIBE, {
topic: topic
});
case 3:
result = _context2.sent;
this._pubsubReceivers[topic] = (this._pubsubReceivers[topic] || []).filter(function (receiver) {
var removing = !handler || receiver.handler === handler;
if (removing) {
_this.off(RECEIVE, receiver);
}
return !removing;
});
return _context2.abrupt("return", result);
case 6:
case "end":
return _context2.stop();
}
}
}, _callee2, this);
}));
return function unsubscribe(_x3, _x4) {
return _unsubscribe.apply(this, arguments);
};
}(),
/**
* Raise as a publisher
* @param {string} topic - Name of topic
* @returns {Promise}
*/
raiseAsPublisher: function () {
var _raiseAsPublisher = _asyncToGenerator(
/*#__PURE__*/
_regeneratorRuntime.mark(function _callee3(topic) {
var call, result, sender;
return _regeneratorRuntime.wrap(function _callee3$(_context3) {
while (1) {
switch (_context3.prev = _context3.next) {
case 0:
sender = function _ref2(payload) {
return call(PUBLISH, {
topic: topic,
payload: payload
});
};
call = this.call.bind(this);
this._pubsubSenders = this._pubsubSenders || {};
_context3.next = 5;
return call(RAISE, {
topic: topic
});
case 5:
result = _context3.sent;
_Object$assign(sender, {
topic: topic,
subCount: 0
});
this._pubsubSenders[topic] = sender;
this.on(COUNT, function (counts) {
sender.subCount = counts.sub;
});
return _context3.abrupt("return", result);
case 10:
case "end":
return _context3.stop();
}
}
}, _callee3, this);
}));
return function raiseAsPublisher(_x5) {
return _raiseAsPublisher.apply(this, arguments);
};
}(),
/**
* Shut as publisher
* @param {Object} payload - Payload data
* @returns {Promise}
*/
shutAsPublisher: function () {
var _shutAsPublisher = _asyncToGenerator(
/*#__PURE__*/
_regeneratorRuntime.mark(function _callee4(topic) {
var result;
return _regeneratorRuntime.wrap(function _callee4$(_context4) {
while (1) {
switch (_context4.prev = _context4.next) {
case 0:
this._pubsubSenders = this._pubsubSenders || {};
_context4.next = 3;
return this.call(SHUT, {
topic: topic
});
case 3:
result = _context4.sent;
delete this._pubsubSenders[topic];
return _context4.abrupt("return", result);
case 6:
case "end":
return _context4.stop();
}
}
}, _callee4, this);
}));
return function shutAsPublisher(_x6) {
return _shutAsPublisher.apply(this, arguments);
};
}(),
/**
* Publish topic
* @param {string} topic - Name of topic to subscribe
* @param {Object} payload - Payload data
* @returns {Promise}
*/
publish: function () {
var _publish = _asyncToGenerator(
/*#__PURE__*/
_regeneratorRuntime.mark(function _callee5(topic, payload) {
var sender;
return _regeneratorRuntime.wrap(function _callee5$(_context5) {
while (1) {
switch (_context5.prev = _context5.next) {
case 0:
sender = (this._pubsubSenders || {})[topic];
if (sender) {
_context5.next = 3;
break;
}
throw new Error("Not ready to publish topic: ".concat(topic));
case 3:
_context5.next = 5;
return sender(payload);
case 5:
return _context5.abrupt("return", _context5.sent);
case 6:
case "end":
return _context5.stop();
}
}
}, _callee5, this);
}));
return function publish(_x7, _x8) {
return _publish.apply(this, arguments);
};
}()
});
module.exports = PubsubExtension;
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Name of topic to subscribe\n   * @param {function} handler - Event handler\n   * @returns {Promise}\n   */\n  async subscribe (topic, handler) {\n    this._pubsubReceivers = this._pubsubReceivers || {}\n    let result = await this.call(SUBSCRIBE, {topic})\n\n    function receiver (data) {\n      handler(data.payload)\n    }\n\n    Object.assign(receiver, {\n      handler\n    })\n\n    this._pubsubReceivers[topic] = (this._pubsubReceivers[topic] || []).concat(receiver)\n    this.on(RECEIVE, receiver)\n    return result\n  },\n\n  /**\n   * Unsubscribe topic\n   * @param {string} topic - Name of topic to subscribe\n   * @param {function} handler - Event handler\n   * @returns {Promise}\n   */\n  async unsubscribe (topic, handler) {\n    this._pubsubReceivers = this._pubsubReceivers || {}\n    const result = await this.call(UNSUBSCRIBE, {topic})\n    this._pubsubReceivers[topic] = (this._pubsubReceivers[topic] || []).filter((receiver) => {\n      let removing = (!handler) || (receiver.handler === handler)\n      if (removing) {\n        this.off(RECEIVE, receiver)\n      }\n      return !removing\n    })\n    return result\n  },\n\n  /**\n   * Raise as a publisher\n   * @param {string} topic - Name of topic\n   * @returns {Promise}\n   */\n  async raiseAsPublisher (topic) {\n    const call = this.call.bind(this)\n    this._pubsubSenders = this._pubsubSenders || {}\n    let result = await call(RAISE, {topic})\n\n    function sender (payload) {\n      return call(PUBLISH, {topic, payload})\n    }\n\n    Object.assign(sender, {\n      topic,\n      subCount: 0\n    })\n\n    this._pubsubSenders[topic] = sender\n\n    this.on(COUNT, (counts) => {\n      sender.subCount = counts.sub\n    })\n    return result\n  },\n\n  /**\n   * Shut as publisher\n   * @param {Object} payload - Payload data\n   * @returns {Promise}\n   */\n  async shutAsPublisher (topic) {\n    this._pubsubSenders = this._pubsubSenders || {}\n    let result = await this.call(SHUT, {topic})\n    delete this._pubsubSenders[topic]\n    return result\n  },\n\n  /**\n   * Publish topic\n   * @param {string} topic - Name of topic to subscribe\n   * @param {Object} payload - Payload data\n   * @returns {Promise}\n   */\n  async publish (topic, payload) {\n    const sender = (this._pubsubSenders || {})[topic]\n    if (!sender) {\n      throw new Error(`Not ready to publish topic: ${topic}`)\n    }\n    return await sender(payload)\n  }\n})\n\nmodule.exports = PubsubExtension\n"]}