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// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
//
// 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.
// author xeipuuv
// author-github https://github.com/xeipuuv
// author-mail xeipuuv@gmail.com
//
// repository-name gojsonschema
// repository-desc An implementation of JSON Schema, based on IETF's draft v4 - Go language.
//
// description Result and ResultError implementations.
//
// created 01-01-2015
package gojsonschema
import (
"fmt"
"strings"
)
type (
// ErrorDetails is a map of details specific to each error.
// While the values will vary, every error will contain a "field" value
ErrorDetails map[string]interface{}
// ResultError is the interface that library errors must implement
ResultError interface {
Field() string
SetType(string)
Type() string
SetContext(*JsonContext)
Context() *JsonContext
SetDescription(string)
Description() string
SetDescriptionFormat(string)
DescriptionFormat() string
SetValue(interface{})
Value() interface{}
SetDetails(ErrorDetails)
Details() ErrorDetails
String() string
}
// ResultErrorFields holds the fields for each ResultError implementation.
// ResultErrorFields implements the ResultError interface, so custom errors
// can be defined by just embedding this type
ResultErrorFields struct {
errorType string // A string with the type of error (i.e. invalid_type)
context *JsonContext // Tree like notation of the part that failed the validation. ex (root).a.b ...
description string // A human readable error message
descriptionFormat string // A format for human readable error message
value interface{} // Value given by the JSON file that is the source of the error
details ErrorDetails
}
Result struct {
errors []ResultError
// Scores how well the validation matched. Useful in generating
// better error messages for anyOf and oneOf.
score int
}
)
// Field outputs the field name without the root context
// i.e. firstName or person.firstName instead of (root).firstName or (root).person.firstName
func (v *ResultErrorFields) Field() string {
return strings.TrimPrefix(v.context.String(), STRING_ROOT_SCHEMA_PROPERTY+".")
}
func (v *ResultErrorFields) SetType(errorType string) {
v.errorType = errorType
}
func (v *ResultErrorFields) Type() string {
return v.errorType
}
func (v *ResultErrorFields) SetContext(context *JsonContext) {
v.context = context
}
func (v *ResultErrorFields) Context() *JsonContext {
return v.context
}
func (v *ResultErrorFields) SetDescription(description string) {
v.description = description
}
func (v *ResultErrorFields) Description() string {
return v.description
}
func (v *ResultErrorFields) SetDescriptionFormat(descriptionFormat string) {
v.descriptionFormat = descriptionFormat
}
func (v *ResultErrorFields) DescriptionFormat() string {
return v.descriptionFormat
}
func (v *ResultErrorFields) SetValue(value interface{}) {
v.value = value
}
func (v *ResultErrorFields) Value() interface{} {
return v.value
}
func (v *ResultErrorFields) SetDetails(details ErrorDetails) {
v.details = details
}
func (v *ResultErrorFields) Details() ErrorDetails {
return v.details
}
func (v ResultErrorFields) String() string {
// as a fallback, the value is displayed go style
valueString := fmt.Sprintf("%v", v.value)
// marshal the go value value to json
if v.value == nil {
valueString = TYPE_NULL
} else {
if vs, err := marshalToJsonString(v.value); err == nil {
if vs == nil {
valueString = TYPE_NULL
} else {
valueString = *vs
}
}
}
return formatErrorDescription(Locale.ErrorFormat(), ErrorDetails{
"context": v.context.String(),
"description": v.description,
"value": valueString,
"field": v.Field(),
})
}
func (v *Result) Valid() bool {
return len(v.errors) == 0
}
func (v *Result) Errors() []ResultError {
return v.errors
}
// Add a fully filled error to the error set
// SetDescription() will be called with the result of the parsed err.DescriptionFormat()
func (v *Result) AddError(err ResultError, details ErrorDetails) {
if _, exists := details["context"]; !exists && err.Context() != nil {
details["context"] = err.Context().String()
}
err.SetDescription(formatErrorDescription(err.DescriptionFormat(), details))
v.errors = append(v.errors, err)
}
func (v *Result) addInternalError(err ResultError, context *JsonContext, value interface{}, details ErrorDetails) {
newError(err, context, value, Locale, details)
v.errors = append(v.errors, err)
v.score -= 2 // results in a net -1 when added to the +1 we get at the end of the validation function
}
// Used to copy errors from a sub-schema to the main one
func (v *Result) mergeErrors(otherResult *Result) {
v.errors = append(v.errors, otherResult.Errors()...)
v.score += otherResult.score
}
func (v *Result) incrementScore() {
v.score++
}
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