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
|
#region Copyright notice and license
// Copyright 2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion
using System;
using System.Collections.Generic;
using System.Reactive.Linq;
using System.Threading;
using System.Threading.Tasks;
using Grpc.Core.Utils;
namespace math
{
/// <summary>
/// Implementation of MathService server
/// </summary>
public class MathServiceImpl : MathGrpc.IMathService
{
public void Div(DivArgs request, IObserver<DivReply> responseObserver)
{
var response = DivInternal(request);
responseObserver.OnNext(response);
responseObserver.OnCompleted();
}
public void Fib(FibArgs request, IObserver<Num> responseObserver)
{
if (request.Limit <= 0)
{
// TODO: support cancellation....
throw new NotImplementedException("Not implemented yet");
}
if (request.Limit > 0)
{
foreach (var num in FibInternal(request.Limit))
{
responseObserver.OnNext(num);
}
responseObserver.OnCompleted();
}
}
public IObserver<Num> Sum(IObserver<Num> responseObserver)
{
var recorder = new RecordingObserver<Num>();
Task.Factory.StartNew(() =>
{
List<Num> inputs = recorder.ToList().Result;
long sum = 0;
foreach (Num num in inputs)
{
sum += num.Num_;
}
responseObserver.OnNext(Num.CreateBuilder().SetNum_(sum).Build());
responseObserver.OnCompleted();
});
return recorder;
}
public IObserver<DivArgs> DivMany(IObserver<DivReply> responseObserver)
{
return new DivObserver(responseObserver);
}
static DivReply DivInternal(DivArgs args)
{
long quotient = args.Dividend / args.Divisor;
long remainder = args.Dividend % args.Divisor;
return new DivReply.Builder { Quotient = quotient, Remainder = remainder }.Build();
}
static IEnumerable<Num> FibInternal(long n)
{
long a = 1;
yield return new Num.Builder { Num_ = a }.Build();
long b = 1;
for (long i = 0; i < n - 1; i++)
{
long temp = a;
a = b;
b = temp + b;
yield return new Num.Builder { Num_ = a }.Build();
}
}
private class DivObserver : IObserver<DivArgs>
{
readonly IObserver<DivReply> responseObserver;
public DivObserver(IObserver<DivReply> responseObserver)
{
this.responseObserver = responseObserver;
}
public void OnCompleted()
{
responseObserver.OnCompleted();
}
public void OnError(Exception error)
{
throw new NotImplementedException();
}
public void OnNext(DivArgs value)
{
responseObserver.OnNext(DivInternal(value));
}
}
}
}
|
