Mercurial > code > home > repos > streamed-graph

annotate src/layout/rdf_value.ts @ 114:4b33a479dc2f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fix layout test to match new layout return types. clean up UriPairMap
author drewp@bigasterisk.com
date Sat, 19 Mar 2022 16:12:49 -0700
parents cbcd82d21356
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
109
cbcd82d21356 cleanup
drewp@bigasterisk.com
parents: 108
diff changeset
1 import { NamedNode, Store, Term } from "n3";
95
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
2 import { RDFS } from "./namespaces";
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
3
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
4 function _singleValue(g: Store, s: Term, p: Term): Term {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
5 const quads = g.getQuads(s, p, null, null);
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
6 const objs = new Set(quads.map((q) => q.object));
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
7 if (objs.size == 0) {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
8 throw new Error("no value for " + s.value + " " + p.value);
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
9 } else if (objs.size == 1) {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
10 const obj = objs.values().next().value;
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
11 return obj as Term;
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
12 } else {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
13 throw new Error("too many different values: " + JSON.stringify(quads));
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
14 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
15 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
16
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
17 export function stringValue(g: Store, s: Term, p: Term): string {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
18 const ret = _singleValue(g, s, p);
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
19 if (ret.termType != "Literal") {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
20 throw new Error(`ret=${ret}`);
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
21 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
22 return ret.value as string;
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
23 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
24
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
25 export function uriValue(g: Store, s: Term, p: Term): NamedNode {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
26 const ret = _singleValue(g, s, p);
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
27 if (ret.termType != "NamedNode") {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
28 throw new Error(`ret=${ret}`);
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
29 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
30
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
31 return ret;
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
32 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
33
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
34 export function labelOrTail(g: Store, uri: NamedNode): string {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
35 let ret: string;
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
36 try {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
37 ret = stringValue(g, uri, RDFS("label"));
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
38 } catch (e) {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
39 const words = uri.value.split("/");
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
40 ret = words[words.length - 1];
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
41 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
42 if (!ret) {
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
43 ret = uri.value;
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
44 }
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
45 return ret;
47d3b5a5bd5e refactor
drewp@bigasterisk.com
parents:
diff changeset
46 }
108
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
47
109
cbcd82d21356 cleanup
drewp@bigasterisk.com
parents: 108
diff changeset
48 export function uniqueSortedTerms<T extends NamedNode | Term>(
cbcd82d21356 cleanup
drewp@bigasterisk.com
parents: 108
diff changeset
49 terms: Iterable<T>
cbcd82d21356 cleanup
drewp@bigasterisk.com
parents: 108
diff changeset
50 ): T[] {
108
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
51 const uniques: T[] = [];
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
52 const seen = new Set();
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
53 for (let o of terms) {
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
54 if (!seen.has(o.id)) {
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
55 seen.add(o.id);
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
56 uniques.push(o);
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
57 }
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
58 }
109
cbcd82d21356 cleanup
drewp@bigasterisk.com
parents: 108
diff changeset
59 uniques.sort((a, b) => {
cbcd82d21356 cleanup
drewp@bigasterisk.com
parents: 108
diff changeset
60 return a.id.localeCompare(b.id);
cbcd82d21356 cleanup
drewp@bigasterisk.com
parents: 108
diff changeset
61 });
108
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
62 return uniques;
5e6840229a05 rewrite freeStatements rendering to put more planning in layout
drewp@bigasterisk.com
parents: 106
diff changeset
63 }
114
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
64
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
65 // A default dict of Term[] with (NamedNode,NamedNode) pairs as keys.
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
66 //
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
67 // Immutable.Map<Immutable.Record<Uri,Uri>, Immutable.Set<Term>>() didn't seem to work.
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
68 export class UriPairMap {
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
69 _d = new Map<string, Term[]>();
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
70
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
71 _key(k1: NamedNode, k2: NamedNode): string {
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
72 return k1.id + "|" + k2.id;
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
73 }
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
74
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
75 add(k1: NamedNode, k2: NamedNode, v: Term) {
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
76 const key = this._key(k1, k2);
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
77 let cur = this._d.get(key);
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
78 if (cur === undefined) {
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
79 cur = [];
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
80 this._d.set(key, cur);
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
81 }
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
82 cur.push(v);
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
83 }
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
84
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
85 get(k1: NamedNode, k2: NamedNode): Term[] {
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
86 const key = this._key(k1, k2);
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
87 const v = this._d.get(key);
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
88 if (v === undefined) {
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
89 return [];
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
90 }
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
91 return v;
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
92 }
4b33a479dc2f fix layout test to match new layout return types. clean up UriPairMap
drewp@bigasterisk.com
parents: 109
diff changeset
93 }