atom/outOfLineContent.go

58 lines
1.5 KiB
Go

package atom
import (
"encoding/xml"
"fmt"
"mime"
)
type OutOfLineContent struct {
XMLName xml.Name `xml:"content"`
*CommonAttributes
Type string `xml:"type,attr,omitempty"` // MediaType
SRC string `xml:"src,attr"` // IRI
}
// newOutOfLineContent creates a new OutOfLineContent. It returns a
// *OutOfLineContent.
func newOutOfLineContent(mediaType, src string) *OutOfLineContent {
mediaType, _, _ = mime.ParseMediaType(mediaType)
return &OutOfLineContent{
CommonAttributes: newCommonAttributes(),
Type: mediaType,
SRC: src,
}
}
// isContent checks whether the OutOfLineContent is a Content. It returns a
// bool.
func (o *OutOfLineContent) isContent() bool { return true }
// hasSRC checks whether the OutOfLineContent has a SRC attribute. It returns a
// bool.
func (o *OutOfLineContent) hasSRC() bool { return true }
// getType returns the Type of the OutOfLineContent as a string.
func (o *OutOfLineContent) getType() string { return o.Type }
// Check checks the OutOfLineContent for incompatibilities with RFC4287. It
// returns an error.
func (o *OutOfLineContent) Check() error {
mediaType := o.getType()
if !isValidMediaType(mediaType) {
return fmt.Errorf("type attribute of out of line content %v invalid media type", o)
}
if isCompositeMediaType(mediaType) {
return fmt.Errorf("type attribute of out of line content %v must not be a composite type", o)
}
if o.SRC == "" {
return fmt.Errorf("src attribute of out of line content %v empty", o)
}
return nil
}