utils

Utilities Library For the Habitat Project, it includes:

Yaml Parser

A Yaml file Parser and Yaml File creator that creates an easy to use tree model out of .yaml file and allows you to create a tree model of yaml nodes that is persisted to .yaml file.

Yaml Parser Example

package examples

import (
	. "github.com/saichler/utils/golang"
	"io/ioutil"
	"os"
)

func Parse_yaml_file(yamlfile string) (*YamlNode, error){
    _,e := os.Stat(yamlfile)
    if e!=nil {
        return nil,e
    }

    buff,e := ioutil.ReadFile(yamlfile)
    if e!=nil {
        return nil,e
    }

    data := string(buff)
    modelRoot:=NewYamlRoot()
    Parse(data,yamlfile,modelRoot)
    return modelRoot,nil
}

func Create_yaml_file(yamlfile string) {
    modelRoot:=NewYamlRoot()
    child:=&YamlNode{}
    child.Init("tag","value",modelRoot.GetLvl()+1)
    modelRoot.AddChild(child)
    ioutil.WriteFile(yamlfile,[]byte(modelRoot.String()),0777)
}

SqlST

An slq.ST wrapper that makes it easy to create sql parepare statements to avoid sql injection via concatenating sql queries.

SqlST Example

package examples

import (
    "database/sql"
    "fmt"
    "github.com/saichler/utils/golang"
    log "github.com/sirupsen/logrus"
)

func insertToTableExample(tx *sql.Tx) {
    st:=dsutils.CreateInsertStatement("MyTable")
    st.AddColumn("Name","MyName")
    st.AddColumn("FamilyName","My Family Name")
    st.AddColumn("Age",5)
    _,err:=st.Exec(tx)
    if err!=nil{
        log.Error(err)
    }
}

func selectFromTableExample(tx *sql.Tx) {
    st:=dsutils.CreateSelectStatement("MyTable","#1 AND #2")
    st.AddColumn("Name","")
    st.AddCriteriaColumn("FamilyName","My Family Name")
    st.AddCriteriaColumn("Age",5)
    rows,err:=st.Query(tx)
    if err!=nil {
        log.Error(err)
    }
    for ;rows.Next(); {
        name:=""
        rows.Scan("Name",name)
        fmt.Println(name)
    }
}

LineReader

Syncronized Queue

ByteAray

StringBuilder