forked from Astn/JSON-RPC.NET
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathJsonRpcProcessor.cs
More file actions
236 lines (211 loc) · 9.37 KB
/
JsonRpcProcessor.cs
File metadata and controls
236 lines (211 loc) · 9.37 KB
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
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
using System;
using System.Globalization;
using System.Threading;
using System.Threading.Tasks;
using System.Reflection;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Newtonsoft.Json;
namespace AustinHarris.JsonRpc
{
public static class JsonRpcProcessor
{
public static void AsyncProcess(string jsonRpc, Action<string> callback, object context = null)
{
Task.Factory.StartNew(() => AsyncProcessInternal(Handler.DefaultSessionId(), jsonRpc, context, callback));
}
public static void AsyncProcess(string sessionId,string jsonRpc, Action<string> callback, object context = null)
{
Task.Factory.StartNew(() => AsyncProcessInternal(sessionId, jsonRpc, context, callback));
}
/// <summary>
/// The callback will be returned to the user, who needs to invoke it in concrete
/// service implementation. Call should be made directly from same thread as
/// service method is executed.
/// </summary>
/// <param name="sessionId">Handler session id</param>
/// <returns></returns>
public static Action<JsonResponse> GetAsyncProcessCallback(string sessionId = "")
{
Handler handler;
if ("" == sessionId)
{
handler = Handler.GetSessionHandler(Handler.DefaultSessionId());
}
else
{
handler = Handler.GetSessionHandler(sessionId);
}
return handler.GetAsyncCallback();
}
private static void AsyncProcessInternal(string sessionId, string jsonRpc, object jsonRpcContext, Action<string> callback)
{
Handler handler = Handler.GetSessionHandler(sessionId);
try
{
Tuple<JsonRequest>[] batch = null;
if (isSingleRpc(jsonRpc))
{
batch = new[] { Tuple.Create(JsonConvert.DeserializeObject<JsonRequest>(jsonRpc)) };
}
else
{
batch = JsonConvert.DeserializeObject<JsonRequest[]>(jsonRpc)
.Select(request => new Tuple<JsonRequest>(request))
.ToArray();
}
if (batch.Length == 0)
{
callback.Invoke(Newtonsoft.Json.JsonConvert.SerializeObject(new JsonResponse
{
Error = handler.ProcessParseException(jsonRpc,
new JsonRpcException(3200, "Invalid Request", "Batch of calls was empty."))
}));
}
foreach (var tuple in batch)
{
JsonRequest jsonRequest = tuple.Item1;
JsonResponse jsonResponse = new JsonResponse();
if (jsonRequest == null)
{
jsonResponse.Error = handler.ProcessParseException(jsonRpc,
new JsonRpcException(-32700, "Parse error",
"Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text."));
}
else
{
jsonResponse.Id = jsonRequest.Id;
if (jsonRequest.Method == null)
{
jsonResponse.Error = handler.ProcessParseException(jsonRpc,
new JsonRpcException(-32600, "Invalid Request", "Missing property 'method'"));
}
else
{
handler.Handle(jsonRequest, jsonRpcContext,
delegate(JsonResponse a)
{
a.Id = jsonRequest.Id;
if (a.Id != null || a.Error != null)
{
callback.Invoke(JsonConvert.SerializeObject(a));
}
}
);
}
}
}
}
catch (Exception ex)
{
callback.Invoke(Newtonsoft.Json.JsonConvert.SerializeObject(new JsonResponse
{
Error = handler.ProcessParseException(jsonRpc, new JsonRpcException(-32700, "Parse error", ex))
}));
}
}
public static void Process(JsonRpcStateAsync async, object context = null)
{
Process(Handler.DefaultSessionId(), async, context);
}
public static void Process(string sessionId, JsonRpcStateAsync async, object context = null)
{
var t = Task.Factory.StartNew((_async) =>
{
var i = (Tuple<string, JsonRpcStateAsync, object>)_async;
async.Result = ProcessInternal(i.Item1, i.Item2.JsonRpc, i.Item3);
async.SetCompleted();
}, new Tuple<string, JsonRpcStateAsync, object>(sessionId, async, context));
}
public static Task<string> Process(string jsonRpc, object context = null)
{
return Process(Handler.DefaultSessionId(), jsonRpc, context);
}
public static Task<string> Process(string sessionId, string jsonRpc, object context = null)
{
return Task<string>.Factory.StartNew((_) =>
{
var tuple = (Tuple<string, string, object>)_;
return ProcessInternal(tuple.Item1, tuple.Item2, tuple.Item3);
}, new Tuple<string, string, object>(sessionId, jsonRpc, context));
}
private static string ProcessInternal(string sessionId, string jsonRpc, object jsonRpcContext)
{
var handler = Handler.GetSessionHandler(sessionId);
try
{
Tuple<JsonRequest, JsonResponse>[] batch = null;
if (isSingleRpc(jsonRpc))
{
batch = new[] { Tuple.Create(JsonConvert.DeserializeObject<JsonRequest>(jsonRpc), new JsonResponse()) };
}
else
{
batch = JsonConvert.DeserializeObject<JsonRequest[]>(jsonRpc)
.Select(request => new Tuple<JsonRequest, JsonResponse>(request, new JsonResponse()))
.ToArray();
}
if (batch.Length == 0)
{
return Newtonsoft.Json.JsonConvert.SerializeObject(new JsonResponse
{
Error = handler.ProcessParseException(jsonRpc,
new JsonRpcException(3200, "Invalid Request", "Batch of calls was empty."))
});
}
foreach (var tuple in batch)
{
var jsonRequest = tuple.Item1;
var jsonResponse = tuple.Item2;
if (jsonRequest == null)
{
jsonResponse.Error = handler.ProcessParseException(jsonRpc,
new JsonRpcException(-32700, "Parse error",
"Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text."));
}
else
{
jsonResponse.Id = jsonRequest.Id;
if (jsonRequest.Method == null)
{
jsonResponse.Error = handler.ProcessParseException(jsonRpc,
new JsonRpcException(-32600, "Invalid Request", "Missing property 'method'"));
}
else
{
var data = handler.Handle(jsonRequest, jsonRpcContext);
if (data == null) continue;
jsonResponse.Error = data.Error;
jsonResponse.Result = data.Result;
}
}
}
var responses = new string[batch.Count(x => x.Item2.Id != null || x.Item2.Error != null)];
var idx = 0;
foreach (var resp in batch.Where(x => x.Item2.Id != null || x.Item2.Error != null))
{
responses[idx++] = JsonConvert.SerializeObject(resp.Item2);
}
return responses.Length == 0 ? string.Empty : responses.Length == 1 ? responses[0] : string.Format("[{0}]", string.Join(",", responses));
}
catch (Exception ex)
{
return Newtonsoft.Json.JsonConvert.SerializeObject(new JsonResponse
{
Error = handler.ProcessParseException(jsonRpc, new JsonRpcException(-32700, "Parse error", ex))
});
}
}
private static bool isSingleRpc(string json)
{
for (int i = 0; i < json.Length; i++)
{
if (json[i] == '{') return true;
else if (json[i] == '[') return false;
}
return true;
}
}
}