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https://github.com/ec-melodies/jsonld-dcat-frame
JSON-LD frames for DCAT catalogs and datasets
https://github.com/ec-melodies/jsonld-dcat-frame
Last synced: about 1 month ago
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JSON-LD frames for DCAT catalogs and datasets
- Host: GitHub
- URL: https://github.com/ec-melodies/jsonld-dcat-frame
- Owner: ec-melodies
- Created: 2015-10-27T11:15:12.000Z (about 9 years ago)
- Default Branch: master
- Last Pushed: 2015-11-06T23:05:48.000Z (about 9 years ago)
- Last Synced: 2024-08-02T12:42:04.205Z (4 months ago)
- Homepage:
- Size: 168 KB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-starred - ec-melodies/jsonld-dcat-frame - JSON-LD frames for DCAT catalogs and datasets (others)
README
# JSON-LD Frames for DCAT catalogs and datasets
The two JSON-LD frames in this repository are meant for easily working with arbitrary DCAT catalog or dataset resources published as JSON-LD (or converted to it).
The typical workflow is to apply one of the two frames to a given JSON-LD resource, followed by compaction with the context of the resulting framed document. Those are standard operations supported by most JSON-LD processors.
## Features
- short aliases for all common fields
- proper hierarchical structure
- URLs are never automatically turned into relative ones
- optionally translated titles and descriptions via language maps ("_i18n" fields)
- dataset relationships via "isPartOf" and "parts" are always just URI references (never embedded)
- "datasets" and "distributions" are always an array (empty if none exist)
- "keywords" and "parts" are always an array if existing (omitted otherwise)
## Example
### Input
```js
{
"@graph": [
{
"@id": "_:b0",
"@type": "http://www.w3.org/ns/dcat#Catalog",
"http://purl.org/dc/terms/title": {
"@language": "en",
"@value": "Test Datasets"
},
"http://www.w3.org/ns/dcat#dataset": {
"@id": "http://melodiesproject.eu/datasets/wp2/test"
}
},
{
"@id": "_:b1",
"@type": "http://purl.org/dc/terms/Location",
"http://www.w3.org/ns/locn#geometry": {
"@type": "http://www.opengis.net/ont/geosparql#wktLiteral",
"@value": "POLYGON((-180 -90, 180 -90, 180 90, -180 90, -180 -90))"
}
},
{
"@id": "_:b2",
"@type": "http://purl.org/dc/terms/PeriodOfTime",
"http://schema.org/endDate": {
"@type": "http://www.w3.org/2001/XMLSchema#dateTime",
"@value": "2015-12-31"
},
"http://schema.org/startDate": {
"@type": "http://www.w3.org/2001/XMLSchema#dateTime",
"@value": "2015-01-01"
}
},
{
"@id": "_:b3",
"@type": "http://www.w3.org/ns/dcat#Distribution",
"http://purl.org/dc/terms/format": "geojson",
"http://purl.org/dc/terms/title": {
"@language": "en",
"@value": "UK Admin 2 Boundaries as GeoJSON"
},
"http://www.w3.org/ns/dcat#downloadURL": {
"@id": "https://raw.githubusercontent.com/chrisfinch/over9k/master/public/experiments/march-2013/GBR_adm2.json"
}
},
{
"@id": "_:b4",
"@type": "http://www.w3.org/ns/dcat#Distribution",
"http://purl.org/dc/terms/title": {
"@language": "en",
"@value": "Grid as CoverageJSON file"
},
"http://www.w3.org/ns/dcat#downloadURL": {
"@id": "http://reading-escience-centre.github.io/leaflet-coverage/coverages/grid.covjson"
},
"http://www.w3.org/ns/dcat#mediaType": "application/prs.coverage+json"
},
{
"@id": "http://melodiesproject.eu/datasets/wp2/test",
"@type": "http://www.w3.org/ns/dcat#Dataset",
"http://purl.org/dc/terms/description": {
"@language": "en",
"@value": "This test dataset includes distributions of various formats"
},
"http://purl.org/dc/terms/issued": {
"@type": "http://www.w3.org/2001/XMLSchema#dateTime",
"@value": "2015-10-13"
},
"http://purl.org/dc/terms/spatial": {
"@id": "_:b1"
},
"http://purl.org/dc/terms/temporal": {
"@id": "_:b2"
},
"http://purl.org/dc/terms/title": [
{
"@language": "de",
"@value": "Test Datensatz zum Testen von Distributionen"
},
{
"@language": "en",
"@value": "Test Dataset for testing distributions"
}
],
"http://www.w3.org/ns/dcat#distribution": [
{
"@id": "_:b3"
},
{
"@id": "_:b4"
}
],
"http://www.w3.org/ns/dcat#landingPage": {
"@id": "http://melodiesproject.eu/datasets/wp2/test"
}
}
]
}
```
### Output
```js
{
"@context": [
"https://rawgit.com/ec-melodies/wp02-dcat/master/context.jsonld",
{
"@base": null,
"@language": null,
"title": {
"@id": "dct:title"
},
"description": {
"@id": "dct:description"
},
"title_i18n": {
"@id": "dct:title",
"@container": "@language"
},
"description_i18n": {
"@id": "dct:description",
"@container": "@language"
}
}
],
"@id": "_:b0",
"@type": "Catalog",
"title_i18n": {
"en": "Test Datasets"
},
"datasets": [
{
"@id": "http://melodiesproject.eu/datasets/wp2/test",
"@type": "Dataset",
"description_i18n": {
"en": "This test dataset includes distributions of various formats"
},
"issued": "2015-10-13",
"spatial": {
"@id": "_:b1",
"@type": "Location",
"geometry": "POLYGON((-180 -90, 180 -90, 180 90, -180 90, -180 -90))"
},
"temporal": {
"@id": "_:b2",
"@type": "PeriodOfTime",
"endDate": "2015-12-31",
"startDate": "2015-01-01"
},
"title_i18n": {
"de": "Test Datensatz zum Testen von Distributionen",
"en": "Test Dataset for testing distributions"
},
"distributions": [
{
"@id": "_:b3",
"@type": "Distribution",
"format": "geojson",
"title_i18n": {
"en": "UK Admin 2 Boundaries as GeoJSON"
},
"downloadURL": "https://raw.githubusercontent.com/chrisfinch/over9k/master/public/experiments/march-2013/GBR_adm2.json"
},
{
"@id": "_:b4",
"@type": "Distribution",
"title_i18n": {
"en": "Grid as CoverageJSON file"
},
"downloadURL": "http://reading-escience-centre.github.io/leaflet-coverage/coverages/grid.covjson",
"mediaType": "application/prs.coverage+json"
}
],
"landingPage": "http://melodiesproject.eu/datasets/wp2/test"
}
]
}
```