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path: root/vendor/github.com/go-openapi/validate/formats.go
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// Copyright 2015 go-swagger maintainers
//
// 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 validate

import (
	"reflect"

	"github.com/go-openapi/spec"
	"github.com/go-openapi/strfmt"
)

type formatValidator struct {
	Path         string
	In           string
	Format       string
	KnownFormats strfmt.Registry
	Options      *SchemaValidatorOptions
}

func newFormatValidator(path, in, format string, formats strfmt.Registry, opts *SchemaValidatorOptions) *formatValidator {
	if opts == nil {
		opts = new(SchemaValidatorOptions)
	}

	var f *formatValidator
	if opts.recycleValidators {
		f = pools.poolOfFormatValidators.BorrowValidator()
	} else {
		f = new(formatValidator)
	}

	f.Path = path
	f.In = in
	f.Format = format
	f.KnownFormats = formats
	f.Options = opts

	return f
}

func (f *formatValidator) SetPath(path string) {
	f.Path = path
}

func (f *formatValidator) Applies(source interface{}, kind reflect.Kind) bool {
	if source == nil || f.KnownFormats == nil {
		return false
	}

	switch source := source.(type) {
	case *spec.Items:
		return kind == reflect.String && f.KnownFormats.ContainsName(source.Format)
	case *spec.Parameter:
		return kind == reflect.String && f.KnownFormats.ContainsName(source.Format)
	case *spec.Schema:
		return kind == reflect.String && f.KnownFormats.ContainsName(source.Format)
	case *spec.Header:
		return kind == reflect.String && f.KnownFormats.ContainsName(source.Format)
	default:
		return false
	}
}

func (f *formatValidator) Validate(val interface{}) *Result {
	if f.Options.recycleValidators {
		defer func() {
			f.redeem()
		}()
	}

	var result *Result
	if f.Options.recycleResult {
		result = pools.poolOfResults.BorrowResult()
	} else {
		result = new(Result)
	}

	if err := FormatOf(f.Path, f.In, f.Format, val.(string), f.KnownFormats); err != nil {
		result.AddErrors(err)
	}

	return result
}

func (f *formatValidator) redeem() {
	pools.poolOfFormatValidators.RedeemValidator(f)
}