/******************************************************************************* * Copyright 2017. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express * or implied. See the License for the specific language governing permissions and limitations under * the License. *******************************************************************************/ package utils import ( "encoding/json" "strconv" ) func InterfaceToString(value interface{}) string { var key string if value == nil { return key } switch value.(type) { case float64: ft := value.(float64) key = strconv.FormatFloat(ft, 'f', -1, 64) case float32: ft := value.(float32) key = strconv.FormatFloat(float64(ft), 'f', -1, 64) case int: it := value.(int) key = strconv.Itoa(it) case uint: it := value.(uint) key = strconv.Itoa(int(it)) case int8: it := value.(int8) key = strconv.Itoa(int(it)) case uint8: it := value.(uint8) key = strconv.Itoa(int(it)) case int16: it := value.(int16) key = strconv.Itoa(int(it)) case uint16: it := value.(uint16) key = strconv.Itoa(int(it)) case int32: it := value.(int32) key = strconv.Itoa(int(it)) case uint32: it := value.(uint32) key = strconv.Itoa(int(it)) case int64: it := value.(int64) key = strconv.FormatInt(it, 10) case uint64: it := value.(uint64) key = strconv.FormatUint(it, 10) case string: key = value.(string) case []byte: key = string(value.([]byte)) default: newValue, _ := json.Marshal(value) key = string(newValue) } return key }