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model.go
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model.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 generator
import (
"bytes"
"encoding/json"
"fmt"
"log"
"os"
"path/filepath"
"sort"
"strconv"
"strings"
"github.com/go-swagger/go-swagger/spec"
"github.com/go-swagger/go-swagger/swag"
)
// GenerateDefinition generates a model file for a schema defintion.
func GenerateDefinition(modelNames []string, includeModel, includeValidator bool, opts GenOpts) error {
// Load the spec
specPath, specDoc, err := loadSpec(opts.Spec)
if err != nil {
return err
}
if len(modelNames) == 0 {
for k := range specDoc.Spec().Definitions {
modelNames = append(modelNames, k)
}
}
for _, modelName := range modelNames {
// lookup schema
model, ok := specDoc.Spec().Definitions[modelName]
if !ok {
return fmt.Errorf("model %q not found in definitions in %s", modelName, specPath)
}
// generate files
generator := definitionGenerator{
Name: modelName,
Model: model,
SpecDoc: specDoc,
Target: filepath.Join(opts.Target, opts.ModelPackage),
IncludeModel: includeModel,
IncludeValidator: includeValidator,
DumpData: opts.DumpData,
}
if err := generator.Generate(); err != nil {
return err
}
}
return nil
}
type definitionGenerator struct {
Name string
Model spec.Schema
SpecDoc *spec.Document
Target string
IncludeModel bool
IncludeValidator bool
Data interface{}
DumpData bool
}
func (m *definitionGenerator) Generate() error {
mod, err := makeGenDefinition(m.Name, m.Target, m.Model, m.SpecDoc)
if err != nil {
return err
}
if m.DumpData {
bb, _ := json.MarshalIndent(swag.ToDynamicJSON(mod), "", " ")
fmt.Fprintln(os.Stdout, string(bb))
return nil
}
mod.IncludeValidator = m.IncludeValidator
m.Data = mod
if m.IncludeModel {
if err := m.generateModel(); err != nil {
return fmt.Errorf("model: %s", err)
}
}
log.Println("generated model", m.Name)
return nil
}
func (m *definitionGenerator) generateModel() error {
buf := bytes.NewBuffer(nil)
if err := modelTemplate.Execute(buf, m.Data); err != nil {
return err
}
log.Println("rendered model template:", m.Name)
return writeToFile(m.Target, m.Name, buf.Bytes())
}
func makeGenDefinition(name, pkg string, schema spec.Schema, specDoc *spec.Document) (*GenDefinition, error) {
receiver := "m"
resolver := newTypeResolver("", specDoc)
resolver.ModelName = name
di := discriminatorInfo(specDoc)
pg := schemaGenContext{
Path: "",
Name: name,
Receiver: receiver,
IndexVar: "i",
ValueExpr: receiver,
Schema: schema,
Required: false,
TypeResolver: resolver,
Named: true,
ExtraSchemas: make(map[string]GenSchema),
Discrimination: di,
}
if err := pg.makeGenSchema(); err != nil {
return nil, err
}
dsi, ok := di.Discriminators["#/definitions/"+name]
if ok {
// when these 2 are true then the schema will render as an interface
pg.GenSchema.IsBaseType = true
pg.GenSchema.IsExported = true
pg.GenSchema.DiscriminatorField = dsi.FieldName
// clone schema and turn into IsExported false
//tpeImpl := newDiscriminatorImpl(pg.GenSchema)
//pg.ExtraSchemas[tpeImpl.Name] = tpeImpl
for _, v := range dsi.Children {
if pg.GenSchema.Discriminates == nil {
pg.GenSchema.Discriminates = make(map[string]string)
}
pg.GenSchema.Discriminates[v.FieldValue] = v.GoType
}
}
dse, ok := di.Discriminated["#/definitions/"+name]
if ok {
pg.GenSchema.DiscriminatorField = dse.FieldName
pg.GenSchema.DiscriminatorValue = dse.FieldValue
pg.GenSchema.IsSubType = true
// find the referenced definitions
// check if it has a discriminator defined
// when it has a discriminator get the schema and run makeGenSchema for it.
// replace the ref with this new genschema
swsp := specDoc.Spec()
for i, ss := range schema.AllOf {
ref := ss.Ref
for ref.String() != "" {
rsch, err := spec.ResolveRef(swsp, &ref)
if err != nil {
return nil, err
}
ref = rsch.Ref
if rsch != nil && rsch.Ref.String() != "" {
ref = rsch.Ref
continue
}
ref = spec.Ref{}
if rsch != nil && rsch.Discriminator != "" {
gs, err := makeGenDefinition(strings.TrimPrefix(ss.Ref.String(), "#/definitions/"), pkg, *rsch, specDoc)
if err != nil {
return nil, err
}
gs.GenSchema.IsBaseType = true
gs.GenSchema.IsExported = true
pg.GenSchema.AllOf[i] = gs.GenSchema
schPtr := &(pg.GenSchema.AllOf[i])
if schPtr.AdditionalItems != nil {
schPtr.AdditionalItems.IsBaseType = true
}
if schPtr.AdditionalProperties != nil {
schPtr.AdditionalProperties.IsBaseType = true
}
for j := range schPtr.Properties {
schPtr.Properties[j].IsBaseType = true
schPtr.Properties[j].ValueExpression += "()"
}
}
}
}
}
var defaultImports []string
if pg.GenSchema.HasValidations {
defaultImports = []string{
"github.com/go-swagger/go-swagger/errors",
"github.com/go-swagger/go-swagger/strfmt",
"github.com/go-swagger/go-swagger/httpkit/validate",
}
}
var extras []GenSchema
var extraKeys []string
for k := range pg.ExtraSchemas {
extraKeys = append(extraKeys, k)
}
sort.Strings(extraKeys)
for _, k := range extraKeys {
extras = append(extras, pg.ExtraSchemas[k])
}
return &GenDefinition{
Package: mangleName(filepath.Base(pkg), "definitions"),
GenSchema: pg.GenSchema,
DependsOn: pg.Dependencies,
DefaultImports: defaultImports,
ExtraSchemas: extras,
}, nil
}
// GenDefinition contains all the properties to generate a
// defintion from a swagger spec
type GenDefinition struct {
GenSchema
Package string
Imports map[string]string
DefaultImports []string
ExtraSchemas []GenSchema
DependsOn []string
IncludeValidator bool
}
// GenSchemaList is a list of schemas for generation.
//
// It can be sorted by name to get a stable struct layout for
// version control and such
type GenSchemaList []GenSchema
func (g GenSchemaList) Len() int { return len(g) }
func (g GenSchemaList) Swap(i, j int) { g[i], g[j] = g[j], g[i] }
func (g GenSchemaList) Less(i, j int) bool { return g[i].Name < g[j].Name }
type schemaGenContext struct {
Path string
Name string
ParamName string
Accessor string
Receiver string
IndexVar string
KeyVar string
ValueExpr string
Schema spec.Schema
Required bool
AdditionalProperty bool
TypeResolver *typeResolver
Untyped bool
Named bool
RefHandled bool
IsVirtual bool
IsTuple bool
Index int
GenSchema GenSchema
Dependencies []string
ExtraSchemas map[string]GenSchema
Discriminator *discor
Discriminated *discee
Discrimination *discInfo
}
func (sg *schemaGenContext) NewSliceBranch(schema *spec.Schema) *schemaGenContext {
//log.Printf("new slice branch %s", sg.Name)
pg := sg.shallowClone()
indexVar := pg.IndexVar
if pg.Path == "" {
pg.Path = "strconv.Itoa(" + indexVar + ")"
} else {
pg.Path = pg.Path + "+ \".\" + strconv.Itoa(" + indexVar + ")"
}
pg.IndexVar = indexVar + "i"
pg.ValueExpr = pg.ValueExpr + "[" + indexVar + "]"
pg.Schema = *schema
pg.Required = false
if sg.IsVirtual {
resolver := newTypeResolver(sg.TypeResolver.ModelsPackage, sg.TypeResolver.Doc)
resolver.ModelName = sg.TypeResolver.ModelName
pg.TypeResolver = resolver
}
// when this is an anonymous complex object, this needs to become a ref
return pg
}
func (sg *schemaGenContext) NewAdditionalItems(schema *spec.Schema) *schemaGenContext {
//_, file, pos, _ := runtime.Caller(1)
//log.Printf("[%s:%d] New additional items\n", filepath.Base(file), pos)
pg := sg.shallowClone()
indexVar := pg.IndexVar
pg.Name = sg.Name + " items"
itemsLen := 0
if sg.Schema.Items != nil {
itemsLen = sg.Schema.Items.Len()
}
var mod string
if itemsLen > 0 {
mod = "+" + strconv.Itoa(itemsLen)
}
if pg.Path == "" {
pg.Path = "strconv.Itoa(" + indexVar + mod + ")"
} else {
pg.Path = pg.Path + "+ \".\" + strconv.Itoa(" + indexVar + mod + ")"
}
pg.IndexVar = indexVar
pg.ValueExpr = sg.ValueExpr + "." + swag.ToGoName(sg.Name) + "Items[" + indexVar + "]"
pg.Schema = spec.Schema{}
if schema != nil {
pg.Schema = *schema
}
pg.Required = false
return pg
}
func (sg *schemaGenContext) NewTupleElement(schema *spec.Schema, index int) *schemaGenContext {
//_, file, pos, _ := runtime.Caller(1)
//log.Printf("[%s:%d] New Tuple element\n", filepath.Base(file), pos)
pg := sg.shallowClone()
if pg.Path == "" {
pg.Path = "\"" + strconv.Itoa(index) + "\""
} else {
pg.Path = pg.Path + "+ \".\"+\"" + strconv.Itoa(index) + "\""
}
pg.ValueExpr = pg.ValueExpr + ".P" + strconv.Itoa(index)
pg.Required = true
pg.IsTuple = true
pg.Schema = *schema
return pg
}
func (sg *schemaGenContext) NewStructBranch(name string, schema spec.Schema) *schemaGenContext {
//log.Printf("new struct branch %s", sg.Name)
pg := sg.shallowClone()
if sg.Path == "" {
pg.Path = fmt.Sprintf("%q", name)
} else {
pg.Path = pg.Path + "+\".\"+" + fmt.Sprintf("%q", name)
}
pg.Name = name
pg.ValueExpr = pg.ValueExpr + "." + swag.ToGoName(name)
pg.Schema = schema
for _, fn := range sg.Schema.Required {
if name == fn {
pg.Required = true
break
}
}
return pg
}
func (sg *schemaGenContext) shallowClone() *schemaGenContext {
pg := new(schemaGenContext)
*pg = *sg
pg.GenSchema = GenSchema{}
pg.Dependencies = nil
pg.Named = false
pg.Index = 0
pg.IsTuple = false
return pg
}
func (sg *schemaGenContext) NewCompositionBranch(schema spec.Schema, index int) *schemaGenContext {
//log.Printf("new composition branch %s", sg.Name)
pg := sg.shallowClone()
pg.Schema = schema
pg.Name = "AO" + strconv.Itoa(index)
if sg.Name != sg.TypeResolver.ModelName {
pg.Name = sg.Name + pg.Name
}
pg.Index = index
return pg
}
func (sg *schemaGenContext) NewAdditionalProperty(schema spec.Schema) *schemaGenContext {
//log.Printf("new additional property %s", sg.Name)
pg := sg.shallowClone()
pg.Schema = schema
if pg.KeyVar == "" {
pg.ValueExpr = sg.ValueExpr
}
pg.KeyVar += "k"
pg.ValueExpr += "[" + pg.KeyVar + "]"
pg.Path = pg.KeyVar
pg.GenSchema.Suffix = "Value"
if sg.Path != "" {
pg.Path = sg.Path + "+\".\"+" + pg.KeyVar
}
return pg
}
func (sg *schemaGenContext) schemaValidations() sharedValidations {
model := sg.Schema
isRequired := sg.Required
if sg.Schema.Default != nil || sg.Schema.ReadOnly {
isRequired = false
}
hasNumberValidation := model.Maximum != nil || model.Minimum != nil || model.MultipleOf != nil
hasStringValidation := model.MaxLength != nil || model.MinLength != nil || model.Pattern != ""
hasSliceValidations := model.MaxItems != nil || model.MinItems != nil || model.UniqueItems
hasValidations := hasNumberValidation || hasStringValidation || hasSliceValidations
if len(sg.Schema.Enum) > 0 {
hasValidations = true
}
return sharedValidations{
Required: sg.Required,
Maximum: model.Maximum,
ExclusiveMaximum: model.ExclusiveMaximum,
Minimum: model.Minimum,
ExclusiveMinimum: model.ExclusiveMinimum,
MaxLength: model.MaxLength,
MinLength: model.MinLength,
Pattern: model.Pattern,
MaxItems: model.MaxItems,
MinItems: model.MinItems,
UniqueItems: model.UniqueItems,
MultipleOf: model.MultipleOf,
Enum: sg.Schema.Enum,
HasValidations: isRequired || hasValidations,
HasSliceValidations: hasSliceValidations,
NeedsValidation: hasValidations,
NeedsRequired: isRequired,
}
}
func (sg *schemaGenContext) MergeResult(other *schemaGenContext, liftsRequired bool) {
if other.GenSchema.AdditionalProperties != nil && other.GenSchema.AdditionalProperties.HasValidations {
sg.GenSchema.HasValidations = true
}
if other.GenSchema.AdditionalProperties != nil && other.GenSchema.AdditionalProperties.NeedsValidation {
sg.GenSchema.NeedsValidation = true
}
if liftsRequired && other.GenSchema.AdditionalProperties != nil && other.GenSchema.AdditionalProperties.NeedsRequired {
sg.GenSchema.NeedsRequired = true
}
if liftsRequired && other.GenSchema.AdditionalProperties != nil && other.GenSchema.AdditionalProperties.Required {
sg.GenSchema.Required = true
}
if other.GenSchema.HasValidations {
sg.GenSchema.HasValidations = other.GenSchema.HasValidations
}
if other.GenSchema.NeedsValidation {
sg.GenSchema.NeedsValidation = other.GenSchema.NeedsValidation
}
if liftsRequired && other.GenSchema.NeedsRequired {
sg.GenSchema.NeedsRequired = other.GenSchema.NeedsRequired
}
if liftsRequired && other.GenSchema.Required {
sg.GenSchema.Required = other.GenSchema.Required
}
if other.GenSchema.HasBaseType {
sg.GenSchema.HasBaseType = other.GenSchema.HasBaseType
}
sg.Dependencies = append(sg.Dependencies, other.Dependencies...)
for k, v := range other.ExtraSchemas {
sg.ExtraSchemas[k] = v
}
}
func (sg *schemaGenContext) buildProperties() error {
for k, v := range sg.Schema.Properties {
//_, file, pos, _ := runtime.Caller(1)
//bbb, _ := json.MarshalIndent(sg.Schema, "", " ")
//log.Printf("[%s:%d] building property %s[%q] (tup: %t) %s\n", filepath.Base(file), pos, sg.Name, k, sg.IsTuple, bbb)
// check if this requires de-anonymizing, if so lift this as a new struct and extra schema
tpe, err := sg.TypeResolver.ResolveSchema(&v, true, sg.IsTuple || containsString(sg.Schema.Required, k))
if sg.Schema.Discriminator == k {
tpe.IsNullable = false
}
if err != nil {
return err
}
vv := v
var hasValidations bool
var needsValidations bool
if tpe.IsComplexObject && tpe.IsAnonymous && len(v.Properties) > 0 {
pg := sg.makeNewStruct(sg.Name+swag.ToGoName(k), v)
pg.IsTuple = sg.IsTuple
if sg.Path != "" {
pg.Path = sg.Path + "+ \".\"+" + fmt.Sprintf("%q", k)
} else {
pg.Path = fmt.Sprintf("%q", k)
}
if err := pg.makeGenSchema(); err != nil {
return err
}
if v.Discriminator != "" {
pg.GenSchema.IsBaseType = true
pg.GenSchema.IsExported = true
pg.GenSchema.HasBaseType = true
}
vv = *spec.RefProperty("#/definitions/" + pg.Name)
hasValidations = pg.GenSchema.HasValidations
needsValidations = pg.GenSchema.NeedsValidation
sg.MergeResult(pg, false)
sg.ExtraSchemas[pg.Name] = pg.GenSchema
}
emprop := sg.NewStructBranch(k, vv)
emprop.IsTuple = sg.IsTuple
if err := emprop.makeGenSchema(); err != nil {
return err
}
if hasValidations || emprop.GenSchema.HasValidations {
emprop.GenSchema.HasValidations = true
}
if needsValidations || emprop.GenSchema.NeedsValidation {
emprop.GenSchema.NeedsValidation = true
}
if emprop.Schema.Ref.String() != "" {
if emprop.Discrimination != nil {
if _, ok := emprop.Discrimination.Discriminators[emprop.Schema.Ref.String()]; ok {
emprop.GenSchema.IsBaseType = true
emprop.GenSchema.IsNullable = false
emprop.GenSchema.HasBaseType = true
}
if _, ok := emprop.Discrimination.Discriminated[emprop.Schema.Ref.String()]; ok {
emprop.GenSchema.IsSubType = true
}
}
}
if sg.Schema.Discriminator == k {
emprop.GenSchema.IsNullable = false
}
if emprop.GenSchema.IsBaseType {
sg.GenSchema.HasBaseType = true
}
sg.MergeResult(emprop, false)
sg.GenSchema.Properties = append(sg.GenSchema.Properties, emprop.GenSchema)
}
sort.Sort(sg.GenSchema.Properties)
return nil
}
func (sg *schemaGenContext) buildAllOf() error {
for i, sch := range sg.Schema.AllOf {
var comprop *schemaGenContext
comprop = sg.NewCompositionBranch(sch, i)
if err := comprop.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(comprop, true)
sg.GenSchema.AllOf = append(sg.GenSchema.AllOf, comprop.GenSchema)
}
return nil
}
type mapStack struct {
Type *spec.Schema
Next *mapStack
Previous *mapStack
ValueRef *schemaGenContext
Context *schemaGenContext
NewObj *schemaGenContext
}
func newMapStack(context *schemaGenContext) (first, last *mapStack, err error) {
ms := &mapStack{
Type: &context.Schema,
Context: context,
}
l := ms
for l.HasMore() {
tpe, err := l.Context.TypeResolver.ResolveSchema(l.Type.AdditionalProperties.Schema, true, true)
if err != nil {
return nil, nil, err
}
if !tpe.IsMap {
if tpe.IsComplexObject && tpe.IsAnonymous {
nw := l.Context.makeNewStruct(l.Context.Name+" Anon", *l.Type.AdditionalProperties.Schema)
sch := spec.RefProperty("#/definitions/" + nw.Name)
l.NewObj = nw
l.Type.AdditionalProperties.Schema = sch
l.ValueRef = l.Context.NewAdditionalProperty(*sch)
}
break
}
l.Next = &mapStack{
Previous: l,
Type: l.Type.AdditionalProperties.Schema,
Context: l.Context.NewAdditionalProperty(*l.Type.AdditionalProperties.Schema),
}
l = l.Next
}
return ms, l, nil
}
func (mt *mapStack) Build() error {
if mt.NewObj == nil && mt.ValueRef == nil && mt.Next == nil && mt.Previous == nil {
cp := mt.Context.NewAdditionalProperty(*mt.Type.AdditionalProperties.Schema)
cp.Required = true
if err := cp.makeGenSchema(); err != nil {
return err
}
mt.Context.MergeResult(cp, false)
mt.Context.GenSchema.AdditionalProperties = &cp.GenSchema
return nil
}
cur := mt
for cur != nil {
if cur.NewObj != nil {
if err := cur.NewObj.makeGenSchema(); err != nil {
return err
}
}
if cur.ValueRef != nil {
if err := cur.ValueRef.makeGenSchema(); err != nil {
return nil
}
}
if cur.NewObj != nil {
cur.Context.MergeResult(cur.NewObj, false)
cur.Context.ExtraSchemas[cur.NewObj.Name] = cur.NewObj.GenSchema
}
if cur.ValueRef != nil {
if err := cur.Context.makeGenSchema(); err != nil {
return err
}
cur.ValueRef.GenSchema.HasValidations = cur.NewObj.GenSchema.HasValidations
cur.ValueRef.GenSchema.NeedsValidation = cur.NewObj.GenSchema.NeedsValidation
cur.Context.MergeResult(cur.ValueRef, false)
cur.Context.GenSchema.AdditionalProperties = &cur.ValueRef.GenSchema
}
if cur.Previous != nil {
if err := cur.Context.makeGenSchema(); err != nil {
return err
}
}
if cur.Next != nil {
cur.Context.MergeResult(cur.Next.Context, false)
cur.Context.GenSchema.AdditionalProperties = &cur.Next.Context.GenSchema
}
if cur.ValueRef != nil {
cur.Context.MergeResult(cur.ValueRef, false)
cur.Context.GenSchema.AdditionalProperties = &cur.ValueRef.GenSchema
}
cur = cur.Previous
}
return nil
}
func (mt *mapStack) HasMore() bool {
return mt.Type.AdditionalProperties != nil && (mt.Type.AdditionalProperties.Allows || mt.Type.AdditionalProperties.Schema != nil)
}
func (mt *mapStack) Dict() map[string]interface{} {
res := make(map[string]interface{})
res["context"] = mt.Context.Schema
if mt.Next != nil {
res["next"] = mt.Next.Dict()
}
if mt.NewObj != nil {
res["obj"] = mt.NewObj.Schema
}
if mt.ValueRef != nil {
res["value"] = mt.ValueRef.Schema
}
return res
}
func (sg *schemaGenContext) buildAdditionalProperties() error {
if sg.Schema.AdditionalProperties == nil {
return nil
}
addp := *sg.Schema.AdditionalProperties
wantsAdditional := addp.Allows || addp.Schema != nil
sg.GenSchema.HasAdditionalProperties = wantsAdditional
if !wantsAdditional {
return nil
}
// flag swap
if sg.GenSchema.IsComplexObject {
sg.GenSchema.IsAdditionalProperties = true
sg.GenSchema.IsComplexObject = false
sg.GenSchema.IsMap = false
}
if addp.Schema == nil {
return nil
}
if !sg.GenSchema.IsMap && (sg.GenSchema.IsAdditionalProperties && sg.Named) {
sg.GenSchema.ValueExpression += "." + sg.GenSchema.Name
comprop := sg.NewAdditionalProperty(*addp.Schema)
comprop.Required = true
if err := comprop.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(comprop, false)
sg.GenSchema.AdditionalProperties = &comprop.GenSchema
return nil
}
if sg.GenSchema.IsMap && wantsAdditional {
// find out how deep this rabbit hole goes
// descend, unwind and rewrite
// This needs to be depth first, so it first goes as deep as it can and then
// builds the result in reverse order.
_, ls, err := newMapStack(sg)
if err != nil {
return err
}
if err := ls.Build(); err != nil {
return err
}
return nil
}
if sg.GenSchema.IsAdditionalProperties && !sg.Named {
// for an anonoymous object, first build the new object
// and then replace the current one with a $ref to the
// new object
newObj := sg.makeNewStruct(sg.GenSchema.Name+" P"+strconv.Itoa(sg.Index), sg.Schema)
if err := newObj.makeGenSchema(); err != nil {
return err
}
sg.GenSchema = GenSchema{}
sg.Schema = *spec.RefProperty("#/definitions/" + newObj.Name)
if err := sg.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(newObj, false)
sg.GenSchema.HasValidations = newObj.GenSchema.HasValidations
sg.ExtraSchemas[newObj.Name] = newObj.GenSchema
return nil
}
return nil
}
func (sg *schemaGenContext) makeNewStruct(name string, schema spec.Schema) *schemaGenContext {
sp := sg.TypeResolver.Doc.Spec()
name = swag.ToGoName(name)
if sg.TypeResolver.ModelName != sg.Name {
name = swag.ToGoName(sg.TypeResolver.ModelName + " " + name)
}
if sp.Definitions == nil {
sp.Definitions = make(spec.Definitions)
}
sp.Definitions[name] = schema
pg := schemaGenContext{
Path: "",
Name: name,
Receiver: "m",
IndexVar: "i",
ValueExpr: "m",
Schema: schema,
Required: false,
Named: true,
ExtraSchemas: make(map[string]GenSchema),
Discrimination: sg.Discrimination,
}
if schema.Ref.String() == "" {
resolver := newTypeResolver(sg.TypeResolver.ModelsPackage, sg.TypeResolver.Doc)
resolver.ModelName = sg.TypeResolver.ModelName
pg.TypeResolver = resolver
}
pg.GenSchema.IsVirtual = true
sg.ExtraSchemas[name] = pg.GenSchema
return &pg
}
func (sg *schemaGenContext) buildArray() error {
tpe, err := sg.TypeResolver.ResolveSchema(sg.Schema.Items.Schema, true, true)
if err != nil {
return err
}
// check if the element is a complex object, if so generate a new type for it
if tpe.IsComplexObject && tpe.IsAnonymous {
pg := sg.makeNewStruct(sg.Name+" items"+strconv.Itoa(sg.Index), *sg.Schema.Items.Schema)
if err := pg.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(pg, false)
sg.ExtraSchemas[pg.Name] = pg.GenSchema
sg.Schema.Items.Schema = spec.RefProperty("#/definitions/" + pg.Name)
sg.IsVirtual = true
if err := sg.makeGenSchema(); err != nil {
return err
}
return nil
}
elProp := sg.NewSliceBranch(sg.Schema.Items.Schema)
elProp.Required = true
if err := elProp.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(elProp, false)
sg.GenSchema.IsBaseType = elProp.GenSchema.IsBaseType
sg.GenSchema.ItemsEnum = elProp.GenSchema.Enum
elProp.GenSchema.Suffix = "Items"
sg.GenSchema.GoType = "[]" + elProp.GenSchema.GoType
if elProp.GenSchema.IsNullable && !elProp.GenSchema.HasDiscriminator && !elProp.GenSchema.IsPrimitive {
sg.GenSchema.GoType = "[]*" + elProp.GenSchema.GoType
}
sg.GenSchema.Items = &elProp.GenSchema
return nil
}
func (sg *schemaGenContext) buildItems() error {
presentsAsSingle := sg.Schema.Items != nil && sg.Schema.Items.Schema != nil
if presentsAsSingle && sg.Schema.AdditionalItems != nil { // unsure if htis a valid of invalid schema
return fmt.Errorf("single schema (%s) can't have additional items", sg.Name)
}
if presentsAsSingle {
return sg.buildArray()
}
if sg.Schema.Items == nil {
return nil
}
// This is a tuple, build a new model that represents this
if sg.Named {
sg.GenSchema.Name = sg.Name
sg.GenSchema.GoType = sg.TypeResolver.goTypeName(sg.Name) // swag.ToGoName(sg.Name)
//if sg.TypeResolver.ModelsPackage != "" {
//sg.GenSchema.GoType = sg.TypeResolver.ModelsPackage + "." + sg.GenSchema.GoType
//}
for i, s := range sg.Schema.Items.Schemas {
elProp := sg.NewTupleElement(&s, i)
if err := elProp.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(elProp, false)
elProp.GenSchema.Name = "p" + strconv.Itoa(i)
sg.GenSchema.Properties = append(sg.GenSchema.Properties, elProp.GenSchema)
}
return nil
}
// for an anonoymous object, first build the new object
// and then replace the current one with a $ref to the
// new tuple object
var sch spec.Schema
sch.Typed("object", "")
sch.Properties = make(map[string]spec.Schema)
for i, v := range sg.Schema.Items.Schemas {
sch.Required = append(sch.Required, "P"+strconv.Itoa(i))
sch.Properties["P"+strconv.Itoa(i)] = v
}
sch.AdditionalItems = sg.Schema.AdditionalItems
tup := sg.makeNewStruct(sg.GenSchema.Name+"Tuple"+strconv.Itoa(sg.Index), sch)
tup.IsTuple = true
if err := tup.makeGenSchema(); err != nil {
return err
}
tup.GenSchema.IsTuple = true
tup.GenSchema.IsComplexObject = false
tup.GenSchema.Title = tup.GenSchema.Name + " a representation of an anonymous Tuple type"
tup.GenSchema.Description = ""
sg.ExtraSchemas[tup.Name] = tup.GenSchema
sg.Schema = *spec.RefProperty("#/definitions/" + tup.Name)
if err := sg.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(tup, false)
return nil
}
func (sg *schemaGenContext) buildAdditionalItems() error {
wantsAdditionalItems :=
sg.Schema.AdditionalItems != nil &&
(sg.Schema.AdditionalItems.Allows || sg.Schema.AdditionalItems.Schema != nil)
sg.GenSchema.HasAdditionalItems = wantsAdditionalItems
if wantsAdditionalItems {
// check if the element is a complex object, if so generate a new type for it
tpe, err := sg.TypeResolver.ResolveSchema(sg.Schema.AdditionalItems.Schema, true, true)
if err != nil {
return err
}
if tpe.IsComplexObject && tpe.IsAnonymous {
pg := sg.makeNewStruct(sg.Name+" Items", *sg.Schema.AdditionalItems.Schema)
if err := pg.makeGenSchema(); err != nil {
return err
}
sg.Schema.AdditionalItems.Schema = spec.RefProperty("#/definitions/" + pg.Name)
pg.GenSchema.HasValidations = true
sg.MergeResult(pg, false)
sg.ExtraSchemas[pg.Name] = pg.GenSchema
}
it := sg.NewAdditionalItems(sg.Schema.AdditionalItems.Schema)
if tpe.IsInterface {
it.Untyped = true
}
if err := it.makeGenSchema(); err != nil {
return err
}
sg.MergeResult(it, true)
sg.GenSchema.AdditionalItems = &it.GenSchema
}
return nil
}
func (sg *schemaGenContext) buildXMLName() error {
if sg.Schema.XML == nil {
return nil
}
sg.GenSchema.XMLName = sg.Name
if sg.Schema.XML.Name != "" {
sg.GenSchema.XMLName = sg.Schema.XML.Name
if sg.Schema.XML.Attribute {
sg.GenSchema.XMLName += ",attr"
}
}
return nil
}
func (sg *schemaGenContext) shortCircuitNamedRef() (bool, error) {
// This if block ensures that a struct gets
// rendered with the ref as embedded ref.
if sg.RefHandled || !sg.Named || sg.Schema.Ref.String() == "" {
return false, nil
}
nullableOverride := sg.GenSchema.IsNullable
tpe := resolvedType{}
tpe.GoType = sg.TypeResolver.goTypeName(sg.Name)
tpe.SwaggerType = "object"
tpe.IsComplexObject = true
tpe.IsMap = false
tpe.IsAnonymous = false
tpe.IsNullable = sg.TypeResolver.IsNullable(&sg.Schema)
item := sg.NewCompositionBranch(sg.Schema, 0)
if err := item.makeGenSchema(); err != nil {
return true, err
}
sg.GenSchema.resolvedType = tpe
sg.GenSchema.IsNullable = sg.GenSchema.IsNullable || nullableOverride
sg.MergeResult(item, true)
sg.GenSchema.AllOf = append(sg.GenSchema.AllOf, item.GenSchema)
return true, nil
}
func (sg *schemaGenContext) liftSpecialAllOf() error {
// if there is only a $ref or a primitive and an x-isnullable schema then this is a nullable pointer
// so this should not compose several objects, just 1
// if there is a ref with a discriminator then we look for x-class on the current definition to know
// the value of the discriminator to instantiate the class
if len(sg.Schema.AllOf) == 0 {
return nil
}
var seenSchema int
var seenNullable bool
var schemaToLift spec.Schema
for _, sch := range sg.Schema.AllOf {
tpe, err := sg.TypeResolver.ResolveSchema(&sch, true, true)
if err != nil {
return err
}
if sg.TypeResolver.IsNullable(&sch) {
seenNullable = true
}
if len(sch.Type) > 0 || len(sch.Properties) > 0 || sch.Ref.GetURL() != nil {
seenSchema++
if (!tpe.IsAnonymous && tpe.IsComplexObject) || tpe.IsPrimitive {
schemaToLift = sch