145 lines
3.2 KiB
Go
145 lines
3.2 KiB
Go
// Package filter ...
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//
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// Description : filter ...
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 2022-07-04 17:47
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package filter
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import (
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"fmt"
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"strings"
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"git.zhangdeman.cn/zhangdeman/util"
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"github.com/Jeffail/gabs"
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"github.com/pkg/errors"
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"github.com/tidwall/gjson"
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)
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// MapRule 映射规则
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 12:21 2022/7/4
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type MapRule struct {
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SourcePath string `json:"source_path"` // 原路径
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MapPath string `json:"map_path"` // 映射路径
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Required bool `json:"required"` // 必须存在
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DataType string `json:"data_type"` // 数据类型
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DefaultValue string `json:"default_value"` // 默认值, 以字符串传入, 会转换成 DataType
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}
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// NewFilter 过滤器实例
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 11:54 2022/7/4
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func NewFilter(sourceData string, filterRuleList []MapRule) *filter {
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return &filter{
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sourceData: sourceData,
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filterRuleList: filterRuleList,
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jsonObj: &gabs.Container{},
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}
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}
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// filter 数据过滤
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 11:58 2022/7/4
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type filter struct {
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sourceData string
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filterRuleList []MapRule
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jsonObj *gabs.Container // 生成的json对象实例
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}
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// Deal ...
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 11:59 2022/7/4
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func (f *filter) Deal() ([]byte, error) {
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for _, rule := range f.filterRuleList {
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if strings.Contains(rule.SourcePath, "[]") {
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// 对于list的处理
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continue
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}
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sourceResult := gjson.Get(f.sourceData, rule.SourcePath)
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sourceVal := sourceResult.String()
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if !sourceResult.Exists() {
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// 不存在, 使用默认值
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sourceVal = rule.DefaultValue
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}
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formatVal, err := f.getValue(rule.DataType, sourceVal)
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if nil != err {
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return nil, fmt.Errorf("%s = %v can not convert to %s : %s", rule.SourcePath, sourceResult.Value(), rule.DataType, err.Error())
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}
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if _, err := f.jsonObj.SetP(formatVal, rule.MapPath); nil != err {
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return nil, fmt.Errorf("%s set val = %v fail : %s", rule.MapPath, formatVal, err.Error())
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}
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}
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return f.jsonObj.EncodeJSON(), nil
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}
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// getValue 获取值
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 12:25 2022/7/4
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func (f *filter) getValue(dataType string, defaultValue string) (interface{}, error) {
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switch dataType {
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case "int8":
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fallthrough
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case "int16":
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fallthrough
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case "int32":
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fallthrough
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case "int64":
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fallthrough
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case "int":
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var (
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err error
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val int64
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)
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err = util.ConvertAssign(&val, defaultValue)
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return val, err
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case "uint8":
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fallthrough
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case "uint16":
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fallthrough
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case "uint32":
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fallthrough
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case "uint64":
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fallthrough
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case "uint":
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var (
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err error
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val uint64
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)
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err = util.ConvertAssign(&val, defaultValue)
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return val, err
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case "bool":
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var (
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err error
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val bool
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)
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err = util.ConvertAssign(&val, defaultValue)
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return val, err
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case "float32":
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fallthrough
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case "float64":
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var (
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err error
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val float64
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)
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err = util.ConvertAssign(&val, defaultValue)
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return val, err
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case "string":
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return defaultValue, nil
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default:
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return nil, errors.New(dataType + " is not support!")
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}
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}
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