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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| package main | ||
|
|
||
| /* Smart JSON functions - Helper functions to handle JSON | ||
| (C) 2021 Péter Deák (hyper80@gmail.com) | ||
| License: GPLv2 | ||
| */ | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "strings" | ||
| ) | ||
|
|
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| type SmartJSON struct { | ||
| parsed map[string]interface{} | ||
| } | ||
|
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| func parseSmartJSON(rawdata []byte) (SmartJSON, error) { | ||
| s := SmartJSON{} | ||
| s.parsed = make(map[string]interface{}) | ||
| err := json.Unmarshal(rawdata, &s.parsed) | ||
| return s, err | ||
| } | ||
|
|
||
| func (sJSON SmartJSON) toFormattedString() (out string) { | ||
| return "JSON => {\n" + jsonNodeToString(sJSON.parsed, " ") + "}\n" | ||
| } | ||
|
|
||
| func jsonNodeToString(n map[string]interface{}, indent string) (out string) { | ||
| out = "" | ||
| for n, v := range n { | ||
| out += indent + n + " => " | ||
| if str, isStr := v.(string); isStr { | ||
| out += str + "\n" | ||
| continue | ||
| } | ||
| if flt, isFlt := v.(float64); isFlt { | ||
| out += fmt.Sprintf("%f\n", flt) | ||
| continue | ||
| } | ||
| if b, isB := v.(bool); isB { | ||
| if b { | ||
| out += "true\n" | ||
| } else { | ||
| out += "false\n" | ||
| } | ||
| continue | ||
| } | ||
|
|
||
| m, okm := v.(map[string]interface{}) | ||
| if okm { | ||
| out += "{\n" | ||
| out += jsonNodeToString(m, indent+" ") | ||
| out += indent + "}\n" | ||
| continue | ||
| } | ||
| out += "?\n" | ||
| } | ||
| return | ||
| } | ||
|
|
||
| func (sJSON SmartJSON) getValueByPath(path string) (interface{}, string) { | ||
| parts := strings.Split(path, "/") | ||
| n := sJSON.parsed | ||
| for i := 0; i < len(parts); i++ { | ||
| v, ok := n[parts[i]] | ||
| if !ok { | ||
| return nil, "none" | ||
| } | ||
| if i == len(parts)-1 { | ||
| if s, isStr := v.(string); isStr { | ||
| return s, "string" | ||
| } | ||
| if f, isFlt := v.(float64); isFlt { | ||
| return f, "float64" | ||
| } | ||
| if b, isBool := v.(bool); isBool { | ||
| return b, "bool" | ||
| } | ||
| if m, isMap := v.(map[string]interface{}); isMap { | ||
| return m, "map" | ||
| } | ||
| } | ||
| if m, isMap := v.(map[string]interface{}); isMap { | ||
| n = m | ||
| continue | ||
| } | ||
| return nil, "none" | ||
| } | ||
| return nil, "none" | ||
| } | ||
|
|
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| func (sJSON SmartJSON) getStringByPath(path string) (string, string) { | ||
| val, typ := sJSON.getValueByPath(path) | ||
| if str, isStr := val.(string); typ == "string" && isStr { | ||
| return str, typ | ||
| } | ||
| return "", "none" | ||
| } | ||
|
|
||
| func (sJSON SmartJSON) getFloat64ByPath(path string) (float64, string) { | ||
| val, typ := sJSON.getValueByPath(path) | ||
| if f, isFlt := val.(float64); typ == "float64" && isFlt { | ||
| return f, typ | ||
| } | ||
| return 0, "none" | ||
| } | ||
|
|
||
| func (sJSON SmartJSON) getBoolByPath(path string) (bool, string) { | ||
| val, typ := sJSON.getValueByPath(path) | ||
| if b, isBool := val.(bool); typ == "bool" && isBool { | ||
| return b, typ | ||
| } | ||
| return false, "none" | ||
| } | ||
|
|
||
| func (sJSON SmartJSON) getMapByPath(path string) (map[string]interface{}, string) { | ||
| val, typ := sJSON.getValueByPath(path) | ||
| if m, isMap := val.(map[string]interface{}); typ == "map" && isMap { | ||
| return m, typ | ||
| } | ||
| return nil, "none" | ||
| } | ||
|
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| func (sJSON SmartJSON) getStringByPathWithDefault(path string, def string) string { | ||
| val, typ := sJSON.getValueByPath(path) | ||
| if str, isStr := val.(string); typ == "string" && isStr { | ||
| return str | ||
| } | ||
| return def | ||
| } | ||
|
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| func (sJSON SmartJSON) getFloat64ByPathWithDefault(path string, def float64) float64 { | ||
| val, typ := sJSON.getValueByPath(path) | ||
| if f, isFlt := val.(float64); typ == "float64" && isFlt { | ||
| return f | ||
| } | ||
| return def | ||
| } | ||
|
|
||
| func (sJSON SmartJSON) getBoolByPathWithDefault(path string, def bool) bool { | ||
| val, typ := sJSON.getValueByPath(path) | ||
| if b, isBool := val.(bool); typ == "bool" && isBool { | ||
| return b | ||
| } | ||
| return def | ||
| } |