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methodparams.go
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methodparams.go
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package param
// Copyright (c) 2018 Bhojpur Consulting Private Limited, India. All rights reserved.
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import (
"fmt"
"strings"
)
// MethodParam keeps param information to be auto passed to controller methods
type MethodParam struct {
name string
in paramType
required bool
defaultValue string
}
type paramType byte
const (
param paramType = iota
path
body
header
)
// New creates a new MethodParam with name and specific options
func New(name string, opts ...MethodParamOption) *MethodParam {
return newParam(name, nil, opts)
}
func newParam(name string, parser paramParser, opts []MethodParamOption) (param *MethodParam) {
param = &MethodParam{name: name}
for _, option := range opts {
option(param)
}
return
}
// Make creates an array of MethodParmas or an empty array
func Make(list ...*MethodParam) []*MethodParam {
if len(list) > 0 {
return list
}
return nil
}
func (mp *MethodParam) String() string {
options := []string{}
result := "param.New(\"" + mp.name + "\""
if mp.required {
options = append(options, "param.IsRequired")
}
switch mp.in {
case path:
options = append(options, "param.InPath")
case body:
options = append(options, "param.InBody")
case header:
options = append(options, "param.InHeader")
}
if mp.defaultValue != "" {
options = append(options, fmt.Sprintf(`param.Default("%s")`, mp.defaultValue))
}
if len(options) > 0 {
result += ", "
}
result += strings.Join(options, ", ")
result += ")"
return result
}