forked from apache/ignite
-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathcompute_run.cpp
More file actions
147 lines (125 loc) · 3.57 KB
/
compute_run.cpp
File metadata and controls
147 lines (125 loc) · 3.57 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
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
#include <stdint.h>
#include <iostream>
#include <sstream>
#include <ignite/ignition.h>
#include <ignite/compute/compute.h>
using namespace ignite;
//tag::compute-run[]
/*
* Function class.
*/
class PrintWord : public compute::ComputeFunc<void>
{
friend struct ignite::binary::BinaryType<PrintWord>;
public:
/*
* Default constructor.
*/
PrintWord()
{
// No-op.
}
/*
* Constructor.
*
* @param text Text.
*/
PrintWord(const std::string& word) :
word(word)
{
// No-op.
}
/**
* Callback.
*/
virtual void Call()
{
std::cout << word << std::endl;
}
/** Word to print. */
std::string word;
};
/**
* Binary type structure. Defines a set of functions required for type to be serialized and deserialized.
*/
namespace ignite
{
namespace binary
{
template<>
struct BinaryType<PrintWord>
{
static int32_t GetTypeId()
{
return GetBinaryStringHashCode("PrintWord");
}
static void GetTypeName(std::string& dst)
{
dst = "PrintWord";
}
static int32_t GetFieldId(const char* name)
{
return GetBinaryStringHashCode(name);
}
static int32_t GetHashCode(const PrintWord& obj)
{
return 0;
}
static bool IsNull(const PrintWord& obj)
{
return false;
}
static void GetNull(PrintWord& dst)
{
dst = PrintWord("");
}
static void Write(BinaryWriter& writer, const PrintWord& obj)
{
writer.RawWriter().WriteString(obj.word);
}
static void Read(BinaryReader& reader, PrintWord& dst)
{
dst.word = reader.RawReader().ReadString();
}
};
}
}
int main()
{
IgniteConfiguration cfg;
cfg.springCfgPath = "/path/to/configuration.xml";
Ignite ignite = Ignition::Start(cfg);
// Get binding instance.
IgniteBinding binding = ignite.GetBinding();
// Registering our class as a compute function.
binding.RegisterComputeFunc<PrintWord>();
// Get compute instance.
compute::Compute compute = ignite.GetCompute();
std::istringstream iss("Print words on different cluster nodes");
std::vector<std::string> words((std::istream_iterator<std::string>(iss)),
std::istream_iterator<std::string>());
// Iterate through all words and print
// each word on a different cluster node.
for (std::string word : words)
{
// Run compute task.
compute.Run(PrintWord(word));
}
}
//end::compute-run[]