2b:null 2c:["$","title",null,{"children":"Nested Named Graphs workbook | datagenous | Observable"}] 31:[] 2f:{"id":"a49f5c0143205af4","slug":"nested-named-graphs","title":"Nested Named Graphs workbook","thumbnail":"30e3447ba0968bc74a1c4ac0ed2c7d528a20450f7e71c0382c9931e3767390e5","access_level":"unlisted","create_time":"$D2023-10-17T09:45:56.139Z","update_time":"$D2024-02-02T16:08:50.598Z","view_time":null,"first_public_time":null,"fork":false,"stars":0,"starred":false,"owner":{"type":"team","id":"ad42203b295b2120","login":"datagenous","name":"datagenous","avatar_url":"https://avatars-next.observableusercontent.com/c8136cc7228bf2ad689462f6a332e51dc9984c845619ac0f34ca730875bf0c7a","tier":"pro"},"version":233,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"987c90ad70c449c1","login":"lomoramic","name":"James Anderson","avatar_url":"https://avatars-next.observableusercontent.com/dc520bbc733259f2913522cf1d50607777b98a3083f290a6f182534561896497","tier":null}],"members":[{"type":"individual","id":"987c90ad70c449c1","login":"lomoramic","name":"James Anderson","avatar_url":"https://avatars-next.observableusercontent.com/dc520bbc733259f2913522cf1d50607777b98a3083f290a6f182534561896497","tier":null,"role":"editor"},{"type":"team","id":"ad42203b295b2120","login":"datagenous","name":"datagenous","avatar_url":"https://avatars-next.observableusercontent.com/c8136cc7228bf2ad689462f6a332e51dc9984c845619ac0f34ca730875bf0c7a","tier":"pro","role":"viewer"}],"comments":[],"custom_thumbnail":false,"trashed":false,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"Nested Named Graphs workbook","cells":[{"id":0,"value":"# Nested Named Graphs workbook","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":193,"value":"This notebook will eventually permit experiments with semantic graphs.\nAt the present state, however, the trig parser works according to the 1.1 recommendation.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":45,"value":"viewof configuration = Inputs.form({\n host: Inputs.text({\n label: \"host\",\n value: \"dydra.com:8443\",\n disabled: true\n }),\n account: Inputs.text({\n label: \"account\",\n value: \"seg\",\n disabled: true\n }),\n repository: Inputs.text({\n label: \"repository\",\n value: \"graph\",\n disabled: true\n }),\n authentication: Inputs.password({\n label: \"authentication\",\n value: \"ZgD8ryoOgEl0TuHOkmJP\",\n submit: true,\n disabled: true,\n submit: \"connect\"\n })\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":54,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":164,"value":"Enter a nested named graph document to import into the dataset:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":5,"value":"viewof segDocument = Inputs.textarea({\n value: `@prefix : . [] { :s :p :o .} .`,\n rows: 10,\n submit: \"update\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":172,"value":"The NNG content transcribed from TRIG into n-quads","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":42,"value":"Inputs.textarea({ value: nquadsGraph.document, rows: 20, width: 1000 })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":166,"value":"The SPARQL query to apply to the dataset:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":56,"value":"viewof segQueryText = Inputs.textarea({\n value: \"select ?g ?s ?p ?o where {graph ?g {?s ?p ?o} }\",\n //width: 1000,\n rows: 10,\n submit: \"run\"\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":176,"value":"The query result follows.\nThe current implementation exhibits (at least) two idiosyncrasies:\n- it provides no means to bind the actual graph which comprises a matched statement. To do so will require BGP processing to include quad statement patterns\n- a query which provides as its matching dataset description an explicit list of graphs will match a BGP against a single effective graph which is the closure of all nested graphs at those roots, rather than computing a distinct effective graph from each root graph.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":82,"value":"

\n${JSON.stringify(queryResult, null, 2)}

\n\n","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":19,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":35,"value":"nquadsGraph = updateResult ? await retrieveGraphContent() : true //updateStatus == 200 ? retrieveGraphContent() : null","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":27,"value":"updateResult = {\n var result =\n configuration.authentication != \"\"\n ? await updateGraphContent(segDocument, {\n \"Content-Type\": mimeTypes.TRIG\n })\n : true;\n return result;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":71,"value":"queryResult = updateResult ? await postQuery(segQueryText) : \"\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":37,"value":"retrieveGraphContent = locationAPI(\n `https://${configuration.host}/${configuration.account}/${configuration.repository}/service`,\n \"GET\",\n { Accept: mimeTypes.NQUADS, token: configuration.authentication }\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":22,"value":"updateGraphContent = locationAPI(\n `https://${configuration.host}/${configuration.account}/${configuration.repository}/service`,\n \"PUT\",\n {\n Accept: mimeTypes.NTRIPLES,\n \"Content-Type\": mimeTypes.TRIG,\n token: configuration.authentication\n }\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":75,"value":"postQuery = locationAPI(\n `https://${configuration.host}/${configuration.account}/${configuration.repository}`,\n \"POST\",\n {\n //Accept: mimeTypes.SPARQL_RESULTS_JSON,\n Accept: mimeTypes.CSV,\n //\"Content-Type\": mimeTypes.SPARQL_QUERY,\n token: configuration.authentication\n }\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":16,"value":"import { locationAPI, mimeTypes } from \"@datagenous/resource-protocol-library\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"}],"files":"$W31","stdlib":"1","titling":"auto"}} 30:"$2f:body"