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
|
/**
* Copyright 2013, 2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
module.exports = function(RED) {
var cron = require("cron");
function InjectNode(n) {
RED.nodes.createNode(this,n);
this.topic = n.topic;
this.payload = n.payload;
this.payloadType = n.payloadType;
this.repeat = n.repeat;
this.crontab = n.crontab;
this.once = n.once;
var node = this;
this.interval_id = null;
this.cronjob = null;
if (this.repeat && !isNaN(this.repeat) && this.repeat > 0) {
this.repeat = this.repeat * 1000;
this.log("repeat = "+this.repeat);
this.interval_id = setInterval( function() {
node.emit("input",{});
}, this.repeat );
} else if (this.crontab) {
if (cron) {
this.log("crontab = "+this.crontab);
this.cronjob = new cron.CronJob(this.crontab,
function() {
node.emit("input",{});
},
null,true);
} else {
this.error("'cron' module not found");
}
}
if (this.once) {
setTimeout( function(){ node.emit("input",{}); }, 100);
}
this.on("input",function(msg) {
var msg = {topic:this.topic};
if ( (this.payloadType == null && this.payload == "") || this.payloadType == "date") {
msg.payload = Date.now();
} else if (this.payloadType == null || this.payloadType == "string") {
msg.payload = this.payload;
} else {
msg.payload = "";
}
this.send(msg);
msg = null;
});
}
RED.nodes.registerType("inject",InjectNode);
InjectNode.prototype.close = function() {
if (this.interval_id != null) {
clearInterval(this.interval_id);
this.log("inject: repeat stopped");
} else if (this.cronjob != null) {
this.cronjob.stop();
this.log("inject: cronjob stopped");
delete this.cronjob;
}
}
RED.httpAdmin.post("/inject/:id", function(req,res) {
var node = RED.nodes.getNode(req.params.id);
if (node != null) {
try {
node.receive();
res.send(200);
} catch(err) {
res.send(500);
node.error("Inject failed:"+err);
console.log(err.stack);
}
} else {
res.send(404);
}
});
}
|
