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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// vespa document ids
// Author: bratseth
package vespa
import (
"errors"
"strings"
)
func IdToURLPath(documentId string) (string, error) {
parts := strings.Split(documentId, ":")
formatAdvice := "Id should be on the form id:<namespace>:<document-type>:<attribute>?:<local-id-string>"
if len(parts) < 5 {
return "", errors.New(formatAdvice)
}
scheme := parts[0]
namespace := parts[1]
documentType := parts[2]
attribute := parts[3]
localId := strings.Join(parts[4:], "")
var group string
var number string
if strings.HasPrefix(attribute, "g=") {
group = attribute[2:]
} else if strings.HasPrefix(attribute, "n=") {
number = attribute[2:]
} else if attribute != "" {
return "", errors.New(formatAdvice + ": Attribute must be g=<string> or n=<integer>")
}
if scheme != "id" {
return "", errors.New(formatAdvice)
}
var attributeAsPath string
if group != "" {
attributeAsPath = "group/" + group + "/"
} else if number != "" {
attributeAsPath = "number/" + number + "/"
}
return namespace + "/" + documentType + "/" + attributeAsPath + "docid/" + localId, nil
}
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