blob: a09cd7954dcfddbd10759e0496e1407610b4767d (
plain)
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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
using Microsoft.AspNet.SignalR;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Web;
using Tango.Integration.ExternalBridge.Web;
namespace Tango.MachineService.Hubs
{
public class ExternalBridgeHub : Hub
{
private static List<ExternalBridgeInfo> _externalBridges;
private static List<MachineSession> _sessions;
public class ExternalBridgeInfo
{
public String ConnectionID { get; set; }
public MachineInfo MachineInfo { get; set; }
}
public class MachineSession
{
public String SessionID { get; set; }
public String ReceiverConnectionID { get; set; }
public String ControllerConnectionID { get; set; }
public ExternalBridgeInfo ExternalBridge { get; set; }
public MachineSession()
{
SessionID = Guid.NewGuid().ToString();
}
}
static ExternalBridgeHub()
{
_externalBridges = new List<ExternalBridgeInfo>();
_sessions = new List<MachineSession>();
}
public void RegisterMachine(MachineInfo machineInfo)
{
_externalBridges.RemoveAll(x => x.MachineInfo.SerialNumber == machineInfo.SerialNumber);
_sessions.RemoveAll(x => x.ExternalBridge.ConnectionID == Context.ConnectionId);
_externalBridges.Add(new ExternalBridgeInfo()
{
MachineInfo = machineInfo,
ConnectionID = Context.ConnectionId,
});
}
public void UnregisterMachine()
{
_externalBridges.RemoveAll(x => x.ConnectionID == Context.ConnectionId);
_sessions.RemoveAll(x => x.ExternalBridge.ConnectionID == Context.ConnectionId);
}
public List<MachineInfo> GetAvailableMachines()
{
return _externalBridges.Select(x => x.MachineInfo).ToList();
}
public String CreateSession(String serialNumber)
{
var externalBridge = _externalBridges.SingleOrDefault(x => x.MachineInfo.SerialNumber == serialNumber);
if (externalBridge != null)
{
var existingSession = GetSession();
if (existingSession != null)
{
_sessions.Remove(existingSession);
}
MachineSession session = new MachineSession();
session.ControllerConnectionID = Context.ConnectionId;
session.ExternalBridge = externalBridge;
_sessions.Add(session);
Clients.Client(externalBridge.ConnectionID).OnSessionCreated(session.SessionID);
return session.SessionID;
}
return null;
}
public void JoinSession(String sessionID)
{
var session = _sessions.SingleOrDefault(x => x.SessionID == sessionID);
if (session != null)
{
session.ReceiverConnectionID = Context.ConnectionId;
Clients.Client(session.ControllerConnectionID).SessionCreated();
}
}
public void Write(List<byte[]> dataCollection)
{
var connectionID = GetOtherSideConnectionID();
if (connectionID != null)
{
Clients.Client(connectionID).DataAvailable(dataCollection);
}
}
public void LeaveSession()
{
var connectionID = GetOtherSideConnectionID();
ClearSession();
Clients.Client(connectionID).OnSessionClosed();
}
public override Task OnDisconnected(bool stopCalled)
{
_externalBridges.RemoveAll(x => x.ConnectionID == Context.ConnectionId);
_sessions.RemoveAll(x => x.ControllerConnectionID == Context.ConnectionId || x.ReceiverConnectionID == Context.ConnectionId || x.ExternalBridge.ConnectionID == Context.ConnectionId);
return base.OnDisconnected(stopCalled);
}
private void ClearSession()
{
_sessions.RemoveAll(x => x.ControllerConnectionID == Context.ConnectionId || x.ReceiverConnectionID == Context.ConnectionId);
}
private MachineSession GetSession()
{
return _sessions.SingleOrDefault(x => x.ReceiverConnectionID == Context.ConnectionId || x.ControllerConnectionID == Context.ConnectionId);
}
private String GetOtherSideConnectionID()
{
var session = GetSession();
if (session != null)
{
String connectionID = String.Empty;
if (session.ReceiverConnectionID == Context.ConnectionId)
{
connectionID = session.ControllerConnectionID;
}
else
{
connectionID = session.ReceiverConnectionID;
}
return connectionID;
}
return null;
}
}
}
|
