57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package common
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import "strconv"
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// TryToInt tries to coerce the given interface to an int. On success it returns
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// the int value and true.
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func TryToInt(number interface{}) (int, bool) {
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var rtn int
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switch v := number.(type) {
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case int:
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rtn = int(v)
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case int8:
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rtn = int(v)
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case int16:
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rtn = int(v)
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case int32:
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rtn = int(v)
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case int64:
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rtn = int(v)
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case uint:
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rtn = int(v)
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case uint8:
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rtn = int(v)
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case uint16:
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rtn = int(v)
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case uint32:
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rtn = int(v)
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case uint64:
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rtn = int(v)
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case string:
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var err error
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rtn, err = strconv.Atoi(v)
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if err != nil {
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return 0, false
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}
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default:
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return 0, false
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}
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return rtn, true
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}
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