1 | (function() {
|
2 | var Messenger, RequestMiddleware, crema, dolce;
|
3 |
|
4 | dolce = require("dolce");
|
5 |
|
6 | RequestMiddleware = require("./middleware");
|
7 |
|
8 | crema = require("crema");
|
9 |
|
10 | Messenger = require("./messenger");
|
11 |
|
12 | |
13 |
|
14 |
|
15 |
|
16 |
|
17 | module.exports = (function() {
|
18 | |
19 |
|
20 |
|
21 |
|
22 | _Class.prototype.passive = false;
|
23 |
|
24 | |
25 |
|
26 |
|
27 |
|
28 | function _Class(name, router) {
|
29 | this.name = name;
|
30 | this.router = router;
|
31 | this._collection = dolce.collection();
|
32 | }
|
33 |
|
34 | |
35 |
|
36 |
|
37 |
|
38 | _Class.prototype.numListeners = function(channel, ops) {
|
39 | return this._collection.get(channel, ops).chains.length;
|
40 | };
|
41 |
|
42 | |
43 |
|
44 |
|
45 |
|
46 | _Class.prototype.dispatch = function(messageWriter) {
|
47 | var chain, chains, messageReader, messanger, middleware, numChains, numRunning, oldAck, _i, _len;
|
48 | chains = this.getListeners(messageWriter);
|
49 | numChains = chains.length;
|
50 | numRunning = numChains;
|
51 | oldAck = messageWriter.callback;
|
52 | messageWriter.running = !!numChains;
|
53 | messageWriter.callback = function() {
|
54 | messageWriter.running = !!(--numRunning);
|
55 | if (oldAck) {
|
56 | return oldAck.apply(this, Array.apply(null, arguments).concat([numRunning, numChains]));
|
57 | }
|
58 | };
|
59 | if (!!!chains.length && !this.passive) {
|
60 | messageWriter.callback(new Error("Route \"" + (crema.stringifyPaths(messageWriter.channel.paths)) + "\" does not exist"));
|
61 | return this;
|
62 | }
|
63 | for (_i = 0, _len = chains.length; _i < _len; _i++) {
|
64 | chain = chains[_i];
|
65 | messageReader = messageWriter.reader();
|
66 | middleware = RequestMiddleware.wrap(chain, messageWriter.pre, messageWriter.next, this);
|
67 | messanger = this._newMessenger(messageReader, middleware);
|
68 | messanger.start();
|
69 | }
|
70 | return this;
|
71 | };
|
72 |
|
73 | |
74 |
|
75 |
|
76 |
|
77 | _Class.prototype.addListener = function(route, callback) {
|
78 | disposable;
|
79 | var disposable, oldCallback;
|
80 | if (route.tags.one) {
|
81 | oldCallback = callback;
|
82 | callback = function() {
|
83 | oldCallback.apply(this, arguments);
|
84 | return disposable.dispose();
|
85 | };
|
86 | }
|
87 | this._validateListener(route, callback);
|
88 | return disposable = this._collection.add(route, callback);
|
89 | };
|
90 |
|
91 | |
92 |
|
93 |
|
94 | _Class.prototype.channels = function(ops) {
|
95 | var channels, listener, _i, _len, _ref, _results;
|
96 | channels = [];
|
97 | _ref = this._collection.find(ops);
|
98 | _results = [];
|
99 | for (_i = 0, _len = _ref.length; _i < _len; _i++) {
|
100 | listener = _ref[_i];
|
101 | _results.push({
|
102 | tags: listener.tags,
|
103 | type: this.name,
|
104 | path: listener.path
|
105 | });
|
106 | }
|
107 | return _results;
|
108 | };
|
109 |
|
110 | |
111 |
|
112 |
|
113 | _Class.prototype.listenerQuery = function(ops) {
|
114 | var search, tag, tagName, tags;
|
115 | tags = [];
|
116 | tag = {};
|
117 | for (tagName in ops.tags) {
|
118 | if (ops.tags[tagName] === true) {
|
119 | ops.tags[tagName] = {
|
120 | $exists: true
|
121 | };
|
122 | }
|
123 | tag = {};
|
124 | tag[tagName] = ops.tags[tagName];
|
125 | tags.push(tag);
|
126 | }
|
127 | search = {
|
128 | $or: [
|
129 | {
|
130 | $and: tags
|
131 | }, {
|
132 | unfilterable: {
|
133 | $exists: true
|
134 | }
|
135 | }
|
136 | ]
|
137 | };
|
138 | return search;
|
139 | };
|
140 |
|
141 | |
142 |
|
143 |
|
144 | _Class.prototype.getListeners = function(route, search) {
|
145 | return this._collection.get(route.channel, {
|
146 | siftTags: this.listenerQuery(search || route)
|
147 | }).chains;
|
148 | };
|
149 |
|
150 | |
151 |
|
152 |
|
153 | _Class.prototype.routeExists = function(route) {
|
154 | return this._collection.contains(route.channel, {
|
155 | siftTags: this.listenerQuery(route)
|
156 | });
|
157 | };
|
158 |
|
159 | |
160 |
|
161 |
|
162 |
|
163 | _Class.prototype._newMessenger = function(message, middleware) {
|
164 | return new Messenger(message, middleware, this);
|
165 | };
|
166 |
|
167 | |
168 |
|
169 |
|
170 | _Class.prototype._validateListener = function(route) {
|
171 | var listeners;
|
172 | if (this.passive) return;
|
173 | listeners = this._collection.get(route.channel, route.tags);
|
174 | if (!!listeners.length) {
|
175 | throw new Error("Route \"" + route.channel.value + "\" already exists");
|
176 | }
|
177 | };
|
178 |
|
179 | return _Class;
|
180 |
|
181 | })();
|
182 |
|
183 | }).call(this);
|