/
store2es.go
134 lines (102 loc) · 2.86 KB
/
store2es.go
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
package main
import (
// "os"
//"bufio"
"fmt"
"time"
//"encoding/base64"
//"net/http"
//"github.com/gorilla/mux"
"strings"
"strconv"
"encoding/json"
"github.com/kellydunn/golang-geo"
"github.com/xuyu/goredis"
"gopkg.in/olivere/elastic.v2"
)
func isJSON(s string) bool {
var js map[string]interface{}
return json.Unmarshal([]byte(s), &js) == nil
}
func FetchFromRedis(messages chan string, RedisClient *goredis.Redis) {
data, _ := RedisClient.RPop("Tqueue")
if data != nil {
//if isJSON(string(data)) {
fmt.Println("Data: ", string(data))
messages <- string(data)
//} else {
// fmt.Println("Data not in JSON format...")
//}
}
}
func Store2ES(ElasticClient *elastic.Client, val string) {
index := time.Now().Format("2006.01.02")
res, err := ElasticClient.Index().
Index("t4u-" + index).
Type("gps").
Id(time.Now().Format("20060102150405")).
BodyString( val ).
Do()
if err != nil {
fmt.Println("After ES insert:", err)
// file.WriteString(("Error: " + val + "\n"))
}
fmt.Println("ES response - status:", res.Created, ", id:", res.Id, ", index:", res.Index,", type:", res.Type)
}
func StoreDistance(val string) string {
fmt.Println("Current val: ", val)
dataPoints := strings.Split(val, "},")
coordinates := []*geo.Point{}
total := 0.000
for i := range dataPoints {
values := strings.Split(dataPoints[i], ",")
lat,_ := strconv.ParseFloat(values[3], 64)
lng,_ := strconv.ParseFloat(values[5], 64)
//fmt.Println(lat, " ", lng)
pt := geo.NewPoint(lat, lng)
coordinates = append(coordinates, pt)
if i > 0 {
total += coordinates[i-1].GreatCircleDistance(coordinates[i])
}
//fmt.Println("\n\nResult[", i, "]: \n", dataPoints[i])
}
dist := ", \"distance\":" + strconv.FormatFloat(total, 'f', 15, 64)
result_final := strings.Join(dataPoints, "},")
result_final = result_final[0:len(result_final)-1] + dist + "}"
// fmt.Println("great circle distance:", total)
fmt.Println("\n\nResult_final: ", result_final)
return result_final
}
func main() {
ElasticClient, err := elastic.NewClient()
if err != nil {
fmt.Println( "ES start error: ", err)
} else {
fmt.Println( "Connection to ES server established successfully...")
}
RedisClient, err2 := goredis.Dial(&goredis.DialConfig{Address: "0.0.0.0:6379"})
if err2 != nil {
fmt.Println( "Redis start error: ", err2)
} else {
fmt.Println( "Connection to redis-server established successfully...")
}
// file, err3 := os.OpenFile("index.txt", os.O_APPEND|os.O_WRONLY, 0666)
// if err3 != nil {
// fmt.Println( "Redis start error: ", err3)
// } else {
// fmt.Println( "File opened successfully...")
// }
messages := make(chan string)
go func() {
for {
FetchFromRedis(messages, RedisClient)
}
}()
for {
select {
case val := <- messages:
//val = StoreDistance(val)
Store2ES(ElasticClient, val)
}
}
}