Added basic unmarshalling for objects with jsonld context
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parent
1997a54824
commit
175fd5fdeb
4 changed files with 216 additions and 17 deletions
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@ -2,8 +2,10 @@ package jsonld
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import (
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"encoding/json"
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"fmt"
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"strings"
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"activitypub"
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ap "activitypub"
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)
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// Ref basic type
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@ -14,7 +16,7 @@ type Ref string
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// keyword can be used as a term.
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type Context struct {
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URL Ref `jsonld:"@url"`
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Language activitypub.NaturalLanguageValue `jsonld:"@language,omitempty,collapsible"`
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Language ap.LangRef `jsonld:"@language,omitempty,collapsible"`
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}
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// Collapsible is an interface used by the JSON-LD marshaller to collapse a struct to one single value
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@ -45,3 +47,46 @@ func (c *Context) MarshalJSON() ([]byte, error) {
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}
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return json.Marshal(a.object)
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}
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// UnmarshalJSON tries to load the Context from the incoming json value
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func (c *Context) UnmarshalJSON(data []byte) error {
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if data[0] == '"' {
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// a quoted string - loading it to c.URL
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if data[len(data)-1] != '"' {
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return fmt.Errorf("invalid string value when unmarshalling Context value")
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}
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c.URL = Ref(data[1 : len(data)-1])
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}
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if data[0] == '{' {
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// an object - trying to load it to the struct
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if data[len(data)-1] != '}' {
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return fmt.Errorf("invalid object value when unmarshalling Context value")
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}
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var s scanner
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s.reset()
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var d decodeState
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d.scan = s
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d.init(data)
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d.scan.reset()
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t := d.valueInterface()
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for key, value := range t.(map[string]interface{}) {
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switch strings.ToLower(key) {
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case "@url":
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fallthrough
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case "url":
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c.URL = Ref(value.(string))
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case "@language":
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fallthrough
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case "language":
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c.Language = ap.LangRef(value.(string))
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default:
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return fmt.Errorf("unkown Context field %q", key)
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}
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}
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}
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return nil
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}
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@ -1,7 +1,6 @@
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package jsonld
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import (
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"activitypub"
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"bytes"
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"strings"
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"testing"
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@ -32,8 +31,7 @@ func TestContext_Ref(t *testing.T) {
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func TestContext_MarshalJSON(t *testing.T) {
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url := "test"
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c := Context{URL: Ref(url)}
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c.Language = make(activitypub.NaturalLanguageValue, 1)
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c.Language["en"] = "en-GB"
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c.Language = "en-GB"
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out, err := c.MarshalJSON()
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if err != nil {
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@ -14,10 +14,6 @@ import (
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"unicode/utf8"
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)
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func (p *payloadWithContext) UnmarshalJSON([]byte) error {
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return fmt.Errorf("not implemented")
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}
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// Unmarshal parses the JSON-encoded data and stores the result
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// in the value pointed to by v. If v is nil or not a pointer,
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// Unmarshal returns an InvalidUnmarshalError.
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@ -91,17 +87,15 @@ func (p *payloadWithContext) UnmarshalJSON([]byte) error {
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// character U+FFFD.
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//
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func Unmarshal(data []byte, v interface{}) error {
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// Check for well-formedness.
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// Avoids filling out half a data structure
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// before discovering a JSON syntax error.
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var d decodeState
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err := checkValid(data, &d.scan)
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if err != nil {
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return err
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}
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d.init(data)
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return d.unmarshal(v)
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return d.unmarshal(&v)
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}
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// Unmarshaler is the interface implemented by types
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@ -1,7 +1,169 @@
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package jsonld
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import "testing"
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import (
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"strconv"
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"testing"
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func TestPayloadWithContext_UnmarshalJSON(t *testing.T) {
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t.Skipf("Not implemented")
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ap "activitypub"
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)
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func TestUnmarshalWithEmptyJsonObject(t *testing.T) {
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obj := mockTypeA{}
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err := Unmarshal([]byte("{}"), &obj)
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if err != nil {
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t.Error(err)
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}
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if obj.Id != "" {
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t.Errorf("Id should have been an empty string, found %s", obj.Id)
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}
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if obj.Name != "" {
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t.Errorf("Name should have been an empty string, found %s", obj.Name)
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}
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if obj.Type != "" {
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t.Errorf("Type should have been an empty string, found %s", obj.Type)
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}
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if obj.PropA != "" {
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t.Errorf("PropA should have been an empty string, found %s", obj.PropA)
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}
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if obj.PropB != 0 {
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t.Errorf("PropB should have been 0.0, found %f", obj.PropB)
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}
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}
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type mockWithContext struct {
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mockTypeA
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Context Context `jsonld:"@context"`
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}
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func TestUnmarshalWithEmptyJsonObjectWithStringContext(t *testing.T) {
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obj := mockWithContext{}
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url := "http://www.habarnam.ro"
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data := []byte(`{"@context": "` + url + `" }`)
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err := Unmarshal(data, &obj)
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if err != nil {
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t.Error(err)
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}
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if obj.Context.Ref() != Ref(url) {
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t.Errorf("@context should have been %q, found %q", url, obj.Context.Collapse())
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}
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if obj.Id != "" {
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t.Errorf("Id should have been an empty string, found %s", obj.Id)
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}
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if obj.Name != "" {
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t.Errorf("Name should have been an empty string, found %s", obj.Name)
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}
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if obj.Type != "" {
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t.Errorf("Type should have been an empty string, found %s", obj.Type)
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}
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if obj.PropA != "" {
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t.Errorf("PropA should have been an empty string, found %s", obj.PropA)
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}
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if obj.PropB != 0 {
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t.Errorf("PropB should have been 0.0, found %f", obj.PropB)
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}
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}
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func TestUnmarshalWithEmptyJsonObjectWithObjectContext(t *testing.T) {
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obj := mockWithContext{}
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url := "http://www.habarnam.ro"
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data := []byte(`{"@context": { "@url": "` + url + `"} }`)
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err := Unmarshal(data, &obj)
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if err != nil {
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t.Error(err)
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}
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if obj.Context.Ref() != Ref(url) {
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t.Errorf("@context should have been %q, found %q", url, obj.Context.Collapse())
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}
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if obj.Id != "" {
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t.Errorf("Id should have been an empty string, found %s", obj.Id)
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}
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if obj.Name != "" {
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t.Errorf("Name should have been an empty string, found %s", obj.Name)
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}
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if obj.Type != "" {
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t.Errorf("Type should have been an empty string, found %s", obj.Type)
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}
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if obj.PropA != "" {
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t.Errorf("PropA should have been an empty string, found %s", obj.PropA)
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}
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if obj.PropB != 0 {
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t.Errorf("PropB should have been 0.0, found %f", obj.PropB)
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}
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}
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func TestUnmarshalWithEmptyJsonObjectWithOneLanguageContext(t *testing.T) {
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obj := mockWithContext{}
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url := "http://www.habarnam.ro"
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langEn := "en-US"
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data := []byte(`{"@context": { "@url": "` + url + `", "@language": "` + langEn + `"} }`)
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err := Unmarshal(data, &obj)
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if err != nil {
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t.Error(err)
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}
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if obj.Context.Ref() != Ref(url) {
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t.Errorf("@context should have been %q, found %q", url, obj.Context.Collapse())
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}
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if obj.Context.Language != ap.LangRef(langEn) {
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t.Errorf("@context should have been %q, found %q", url, obj.Context.Collapse())
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}
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if obj.Id != "" {
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t.Errorf("Id should have been an empty string, found %s", obj.Id)
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}
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if obj.Name != "" {
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t.Errorf("Name should have been an empty string, found %s", obj.Name)
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}
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if obj.Type != "" {
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t.Errorf("Type should have been an empty string, found %s", obj.Type)
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}
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if obj.PropA != "" {
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t.Errorf("PropA should have been an empty string, found %s", obj.PropA)
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}
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if obj.PropB != 0 {
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t.Errorf("PropB should have been 0.0, found %f", obj.PropB)
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}
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}
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func TestUnmarshalWithEmptyJsonObjectWithFullObject(t *testing.T) {
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obj := mockWithContext{}
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url := "http://www.habarnam.ro"
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langEn := "en-US"
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propA := "ana"
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var propB float32 = 6.66
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typ := "test"
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name := "test object #1"
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id := "777sdad"
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data := []byte(`{
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"@context": { "@url": "` + url + `", "@language": "` + langEn + `"},
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"PropA": "` + propA + `",
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"PropB": ` + strconv.FormatFloat(float64(propB), 'f', 2, 32) + `,
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"Id" : "` + id + `",
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"Name" : "` + name + `",
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"Type" : "` + typ + `"
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}`)
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err := Unmarshal(data, &obj)
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if err != nil {
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t.Error(err)
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}
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if obj.Context.Ref() != Ref(url) {
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t.Errorf("@context should have been %q, found %q", url, obj.Context.Collapse())
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}
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if obj.Context.Language != ap.LangRef(langEn) {
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t.Errorf("@context should have been %q, found %q", url, obj.Context.Collapse())
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}
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if obj.Id != id {
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t.Errorf("Id should have been %q, found %q", id, obj.Id)
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}
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if obj.Name != name {
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t.Errorf("Name should have been %q, found %q", name, obj.Name)
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}
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if obj.Type != typ {
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t.Errorf("Type should have been %q, found %q", typ, obj.Type)
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}
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if obj.PropA != propA {
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t.Errorf("PropA should have been %q, found %q", propA, obj.PropA)
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}
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if obj.PropB != propB {
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t.Errorf("PropB should have been %f, found %f", propB, obj.PropB)
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}
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}
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