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Duplicate resource in JSON-LD frame output with embed=LAST #332
Description
The framing algorithm sometime keeps two occurrences of the resource with all attributes even if embed=LAST.
Json-LD input
{
"@context" : {
"@vocab" : "http://www.example.net/"
},
"@id": "#doc",
"@type": "Document",
"content": {
"@list": [
{
"@id": "#question",
"@type": "Question",
"label" : "Why am I here twice?"
},
{
"@id": "#block",
"predicate": {
"@id": "#question"
}
}
]
}
}
Frame:
{
"@context" : {
"@vocab" : "http://www.example.net/"
},
"@type" : "Document"
}
Cuttent buggy output:
{
"@context" : {
"@vocab" : "http://www.example.net/"
},
"@graph" : [ {
"@id" : "#doc",
"@type" : "Document",
"content" : {
"@list" : [ {
"@id" : "#question",
"@type" : "Question", //This attr should not be here, it is printed later
"label" : "Why am I here twice?" //This attr should not be here, it is printed later
}, {
"@id" : "#block",
"predicate" : {
"@id" : "#question",
"@type" : "Question",
"label" : "Why am I here twice?"
}
} ]
}
} ]
}
I will make PR with failing test case soon and link it here
Activity
pvojtechovsky commentedon Aug 2, 2022
By the way, there is a test case output
/jsonld-java/src/test/resources/custom/frame-0009-out.jsonld
which also contains duplicate resource. Is it bug or feature?
I understood the embed=last as there is only one occurrence of the resource with all attributes and it is the last occurrence. All other occurrences are just reference over @id to that last occurrence. Am I wrong?
pvojtechovsky commentedon Aug 2, 2022
I just found that JSON-LD 1.1 implementation done by this project
https://github.com/filip26/titanium-json-ld
works well for this test case. So I am moving to that new project.
So I do not need to have this issue solved in this project.