GoTool

some tools of golang

Base64

usage

import (
    "fmt"
    "github.com/ByBullet/GoTool/codec"
)

func main() {
    base64 := codec.Base64{}
    str := "abc"
    
    ret1 := base64.EncodeStr(str)
    fmt.Println("encode:", ret1)
    ret2, err := base64.DecodeStr(ret1)
    if err != nil {
        fmt.Println(err)
        return
    }
    
    fmt.Println("decode:", ret2)
}

logger

feature

feature	support
log leve	Yes
file output	Yes

usage

Four levels int thid module;
LOGGER_ERROR LOGGER_WARNING LOGGER_INFO LOGGER_DEBUG;
Each level of logging is output to a different log file;

import (
	"github.com/ByBullet/GoTool/logger"
)

/* log initialization settings*/
func init() {
	/* Log output to log folder in the root directory;This module must be initialized before other modules; */
	logger.SetConfig(logger.Config{LoggerLevel: logger.LOGGER_DEBUG, OutType: logger.LOGGER_FILE, OutDir: "log"})
}

func main() {
	logger.Debug("debug")
	logger.InfoFormat("%s\n", "info")
}

inicfg

Ini configuration file parsing tool

feature

feature	support
file stream input	Yes
string stream input	Yes

usage

An ini configuration file is required as follows:

; MySQL config
[MySQL]
host = 127.0.0.1
port = 3306
username = root
password = 123456

import (
    "fmt"
    "github.com/ByBullet/GoTool/inicfg"
    "os"
)

func main() {
    file, err := os.Open("filepath")
    if err != nil {
        fmt.Println(err)
        return
    }
    
    defer file.Close()
    
    iniReader := inicfg.NewIniReader(file)
    
    //parsing
    err = iniReader.Parse()
    
    if err != nil {
        fmt.Println(err)
        return
    }
    
    //get [MySQL] section
    mysql := iniReader.Get("MySQL")
    if mysql == nil {
        fmt.Println("No such section is a [MySQL].")
        return
    }
    
    hostVal := mysql["host"]
    portVal := mysql["port"]
    nameVal := mysql["username"]
    pwdVal  := mysql["password"]
    
    //to string
    host := hostVal.AsString()
    //to int
    port, e := portVal.AsInt()
    if e != nil {
        fmt.Println(e)
        return
    }
    
    name := nameVal.AsString()
    pwd := pwdVal.AsString()
    
    fmt.Println("host: ", host)
    fmt.Println("port: ", port)
    fmt.Println("uname: ", name)
    fmt.Println("pwd: ", pwd)	
}

Timer

High performance timer

operational	time complexity	remark
add task	O(logN)	N is the number of elements in the container
delete task	O(1)	noting
perform task	O(1)	noting

usage

import (
	"fmt"
	"github.com/ByBullet/GoTool/timer"
)

func main() {

	//create a timer
	tm := timer.NewTimer()
	//add scheduled tasks
	tm.AddTaskCall(5, func() { 
	    fmt.Println("5 seconds is up, execute the task.")
	})
	tm.AddTaskCall(10, func() {
	    fmt.Println("10 seconds is up, execute the task.")
	})
	tm.AddTaskCall(8, func() {
	    fmt.Println("8 seconds is up, execute the task.")
	})

	//start timer
	tm.Start()
}

output

5 seconds is up, execute the task.
8 seconds is up, execute the task.
10 seconds is up, execute the task.