| 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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136 |
1
1
1
1
1
22
22
22
22
22
22
22
22
22
22
22
22
22
1
22
22
22
22
22
1
22
1
22
22
22
1
1
| /*
* Copyright 2014 Telefonica Investigación y Desarrollo, S.A.U
*
* This file is part of iotagent-thinking-things
*
* iotagent-thinking-things is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* iotagent-thinking-things is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with iotagent-thinking-things.
* If not, seehttp://www.gnu.org/licenses/.
*
* For those usages not covered by the GNU Affero General Public License
* please contact with::[iot_support@tid.es]
*/
'use strict';
var logger = require('fiware-node-logger'),
http = require('http'),
express = require('express'),
thinkingListener = require('./middlewares/thinkingListener'),
iotAgentLib = require('iotagent-node-lib'),
bodyParser = require('body-parser'),
async = require('async'),
apply = async.apply,
context = {
op: 'IoTAgentTT.SouthBoundServer'
},
southboundServer;
/**
* This middleware can be used to trace the request contents in debug mode.
*/
function traceRequest(req, res, next) {
logger.debug(context, 'Request for path [%s] from [%s]', req.path, req.get('host'));
logger.debug(context, 'Headers:\n %s', JSON.stringify(req.headers, null, 4));
logger.debug(context, 'RawBody:\n\n%s\n\n', JSON.stringify(req.body, null, 4));
next();
}
/**
* Generic error handler for errors raised in the southbound.
*/
function handleError(error, req, res, next) {
var code = 500;
logger.debug(context, 'Error [%s] handing request: %s', error.name, error.message);
if (error.code) {
code = error.code;
}
res.status(code).json({
name: error.name,
message: error.message
});
}
/**
* Start the southbound server to listen for Thinking Things requests.
*/
function startServer(config, callback) {
var baseRoot = '/';
Eif (config.thinkingThings.logLevel) {
logger.setLevel(config.thinkingThings.logLevel);
}
southboundServer = {
server: null,
app: express(),
router: express.Router()
};
logger.info(context, 'Starting IoT Agent listening on port [%s]', config.thinkingThings.port);
logger.debug(context, 'Using config:\n\n%s\n', JSON.stringify(config, null, 4));
southboundServer.app.set('port', config.thinkingThings.port);
southboundServer.app.set('host', '0.0.0.0');
southboundServer.app.use(bodyParser.urlencoded());
Iif (config.thinkingThings.logLevel && config.thinkingThings.logLevel === 'DEBUG') {
southboundServer.app.use(traceRequest);
}
Eif (config.thinkingThings.root) {
baseRoot = config.thinkingThings.root;
}
if (config.thinkingThings.mappingFile) {
config.thinkingThings.idMapping = require('../' + config.thinkingThings.mappingFile);
}
southboundServer.app.use(baseRoot, southboundServer.router);
thinkingListener.loadContextRoutes(southboundServer.router, config);
southboundServer.app.use(handleError);
southboundServer.server = http.createServer(southboundServer.app);
southboundServer.server.listen(southboundServer.app.get('port'), southboundServer.app.get('host'), callback);
}
/**
* Start the IoT Agent.
*/
function start(config, callback) {
async.series([
apply(startServer, config),
apply(iotAgentLib.activate, config.ngsi)
], callback);
}
/**
* Stop the IoT Agent.
*/
function stop(callback) {
logger.info(context, 'Stopping IoT Agent');
iotAgentLib.deactivate(function() {
southboundServer.server.close(callback);
});
}
exports.start = start;
exports.stop = stop;
|