slice_validator.go

Documentation: k8s.io/kube-openapi/pkg/validation/validate

     1  // Copyright 2015 go-swagger maintainers
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package validate
    16  
    17  import (
    18  	"fmt"
    19  	"reflect"
    20  
    21  	"k8s.io/kube-openapi/pkg/validation/spec"
    22  	"k8s.io/kube-openapi/pkg/validation/strfmt"
    23  )
    24  
    25  type schemaSliceValidator struct {
    26  	Path            string
    27  	In              string
    28  	MaxItems        *int64
    29  	MinItems        *int64
    30  	UniqueItems     bool
    31  	AdditionalItems *spec.SchemaOrBool
    32  	Items           *spec.SchemaOrArray
    33  	Root            interface{}
    34  	KnownFormats    strfmt.Registry
    35  	Options         SchemaValidatorOptions
    36  }
    37  
    38  func (s *schemaSliceValidator) SetPath(path string) {
    39  	s.Path = path
    40  }
    41  
    42  func (s *schemaSliceValidator) Applies(source interface{}, kind reflect.Kind) bool {
    43  	_, ok := source.(*spec.Schema)
    44  	r := ok && kind == reflect.Slice
    45  	return r
    46  }
    47  
    48  func (s *schemaSliceValidator) Validate(data interface{}) *Result {
    49  	result := new(Result)
    50  	if data == nil {
    51  		return result
    52  	}
    53  	val := reflect.ValueOf(data)
    54  	size := val.Len()
    55  
    56  	if s.Items != nil && s.Items.Schema != nil {
    57  		for i := 0; i < size; i++ {
    58  			validator := s.Options.NewValidatorForIndex(i, s.Items.Schema, s.Root, fmt.Sprintf("%s[%d]", s.Path, i), s.KnownFormats, s.Options.Options()...)
    59  			value := val.Index(i)
    60  			result.Merge(validator.Validate(value.Interface()))
    61  		}
    62  	}
    63  
    64  	itemsSize := 0
    65  	if s.Items != nil && len(s.Items.Schemas) > 0 {
    66  		itemsSize = len(s.Items.Schemas)
    67  		for i := 0; i < itemsSize; i++ {
    68  			validator := s.Options.NewValidatorForIndex(i, &s.Items.Schemas[i], s.Root, fmt.Sprintf("%s[%d]", s.Path, i), s.KnownFormats, s.Options.Options()...)
    69  			if val.Len() <= i {
    70  				break
    71  			}
    72  			result.Merge(validator.Validate(val.Index(i).Interface()))
    73  		}
    74  	}
    75  	if s.AdditionalItems != nil && itemsSize < size {
    76  		if s.Items != nil && len(s.Items.Schemas) > 0 && !s.AdditionalItems.Allows {
    77  			result.AddErrors(arrayDoesNotAllowAdditionalItemsMsg())
    78  		}
    79  		if s.AdditionalItems.Schema != nil {
    80  			for i := itemsSize; i < size-itemsSize+1; i++ {
    81  				validator := s.Options.NewValidatorForIndex(i, s.AdditionalItems.Schema, s.Root, fmt.Sprintf("%s[%d]", s.Path, i), s.KnownFormats, s.Options.Options()...)
    82  				result.Merge(validator.Validate(val.Index(i).Interface()))
    83  			}
    84  		}
    85  	}
    86  
    87  	if s.MinItems != nil {
    88  		if err := MinItems(s.Path, s.In, int64(size), *s.MinItems); err != nil {
    89  			result.AddErrors(err)
    90  		}
    91  	}
    92  	if s.MaxItems != nil {
    93  		if err := MaxItems(s.Path, s.In, int64(size), *s.MaxItems); err != nil {
    94  			result.AddErrors(err)
    95  		}
    96  	}
    97  	if s.UniqueItems {
    98  		if err := UniqueItems(s.Path, s.In, val.Interface()); err != nil {
    99  			result.AddErrors(err)
   100  		}
   101  	}
   102  	result.Inc()
   103  	return result
   104  }
   105
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