58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
|
// Licensed to Elasticsearch B.V. under one or more contributor
|
||
|
|
// license agreements. See the NOTICE file distributed with
|
||
|
|
// this work for additional information regarding copyright
|
||
|
|
// ownership. Elasticsearch B.V. licenses this file to you 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 common
|
||
|
|
|
||
|
|
import "strconv"
|
||
|
|
|
||
|
|
// TryToInt tries to coerce the given interface to an int. On success it returns
|
||
|
|
// the int value and true.
|
||
|
|
func TryToInt(number interface{}) (int, bool) {
|
||
|
|
var rtn int
|
||
|
|
switch v := number.(type) {
|
||
|
|
case int:
|
||
|
|
rtn = int(v)
|
||
|
|
case int8:
|
||
|
|
rtn = int(v)
|
||
|
|
case int16:
|
||
|
|
rtn = int(v)
|
||
|
|
case int32:
|
||
|
|
rtn = int(v)
|
||
|
|
case int64:
|
||
|
|
rtn = int(v)
|
||
|
|
case uint:
|
||
|
|
rtn = int(v)
|
||
|
|
case uint8:
|
||
|
|
rtn = int(v)
|
||
|
|
case uint16:
|
||
|
|
rtn = int(v)
|
||
|
|
case uint32:
|
||
|
|
rtn = int(v)
|
||
|
|
case uint64:
|
||
|
|
rtn = int(v)
|
||
|
|
case string:
|
||
|
|
var err error
|
||
|
|
rtn, err = strconv.Atoi(v)
|
||
|
|
if err != nil {
|
||
|
|
return 0, false
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
return 0, false
|
||
|
|
}
|
||
|
|
return rtn, true
|
||
|
|
}
|