Mercurial > code > home > repos > streamed-graph
annotate src/layout/Layout.ts @ 110:3cdbbd913f1d
table displays now just barely
| author | drewp@bigasterisk.com |
|---|---|
| date | Fri, 18 Mar 2022 23:41:24 -0700 |
| parents | 5e6840229a05 |
| children | 4b33a479dc2f |
| rev | line source |
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1 // Organize graph data into tables (column orders, etc) for the view layer. |
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2 |
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3 import Immutable from "immutable"; // mostly using this for the builtin equals() testing, since NamedNode(x)!=NamedNode(x) |
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4 import { NamedNode, Quad, Store, Term } from "n3"; |
| 110 | 5 import { rdf, rdfs } from "./namespaces"; |
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6 import { uniqueSortedTerms } from "./rdf_value"; |
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7 import { TableDesc, ViewConfig } from "./ViewConfig"; |
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8 |
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9 type UriSet = Immutable.Set<NamedNode>; |
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10 export type TypeToSubjs = Immutable.Map<NamedNode, UriSet>; |
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11 |
| 103 | 12 interface ColumnHeader { |
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13 rdfType: NamedNode; |
| 103 | 14 pred: NamedNode; |
| 15 } | |
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16 |
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17 export interface AlignedTable { |
| 103 | 18 columnHeaders: ColumnHeader[]; |
| 110 | 19 rowHeaders: NamedNode[]; |
| 20 rows: Term[][][]; | |
| 103 | 21 } |
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22 |
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23 export interface PredRow { |
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24 pred: NamedNode; |
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25 objs: Term[]; |
| 103 | 26 } |
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27 |
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28 export interface SubjRow { |
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29 subj: NamedNode; |
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30 predRows: PredRow[]; |
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31 } |
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32 |
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33 export interface FreeStatements { |
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34 subjRows: SubjRow[]; |
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35 } |
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36 |
| 103 | 37 export interface LayoutResult { |
| 38 sections: (AlignedTable | FreeStatements)[]; | |
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39 } |
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40 |
| 110 | 41 interface ISP { |
| 42 subj: NamedNode; | |
| 43 pred: NamedNode; | |
| 44 } | |
| 45 const makeSP = Immutable.Record<ISP>({ | |
| 46 subj: new NamedNode(""), | |
| 47 pred: new NamedNode(""), | |
| 48 }); | |
| 49 | |
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50 class AlignedTableBuilder { |
| 110 | 51 subjSet = Immutable.Set<NamedNode>(); |
| 52 predSet = Immutable.Set<NamedNode>(); | |
| 53 cell = Immutable.Map<string, Immutable.Set<Term>>(); | |
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54 constructor( |
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55 public rdfType: NamedNode /* plus join types, sort instructions */ |
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56 ) {} |
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57 |
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58 addQuad(q: Quad) { |
| 110 | 59 const subj = q.subject as NamedNode; |
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60 const pred = q.predicate as NamedNode; |
| 110 | 61 this.subjSet = this.subjSet.add(subj); |
| 62 this.predSet = this.predSet.add(pred); | |
| 63 | |
| 64 const key =subj.id+pred.id//makeSP({ subj, pred }); | |
| 65 const cur = this.cell.get(key, undefined); | |
| 66 const newval = | |
| 67 cur === undefined ? Immutable.Set([q.object]) : cur.add(q.object); | |
| 68 | |
| 69 this.cell = this.cell.set(key, newval); | |
| 70 } | |
| 71 | |
| 72 value(): AlignedTable { | |
| 73 let preds = uniqueSortedTerms(this.predSet); | |
| 74 const tagged = preds.map((p, i)=>{ | |
| 75 if (p.equals(rdf.type)) { | |
| 76 i=999; | |
| 77 } | |
| 78 if (p.equals(rdfs.label)) { | |
| 79 i=-1 | |
| 80 } | |
| 81 return {sort:i, val: p} | |
| 82 }) | |
| 83 tagged.sort((a,b)=>{ | |
| 84 return a.sort - b.sort; | |
| 85 }); | |
| 86 preds = tagged.map((e)=>e.val); | |
| 87 | |
| 88 // const omittedColumn = pred.equals(rdf.type); | |
| 89 const subjs = uniqueSortedTerms(this.subjSet); | |
| 90 const outputGrid: Term[][][] = []; | |
| 91 for (let subj of subjs) { | |
| 92 const row: Term[][] = []; | |
| 93 preds.forEach((pred) => { | |
| 94 const key = subj.id+pred.id;//makeSP({ subj, pred }); | |
| 95 const objs = this.cell.get(key, Immutable.Set<Term>([])); | |
| 96 const uniq = uniqueSortedTerms(objs); | |
| 97 console.log("cell objs", objs.size, uniq.length); | |
| 98 row.push(uniq); | |
| 99 }); | |
| 100 outputGrid.push(row); | |
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101 } |
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102 |
| 110 | 103 const headers = preds.map((pred) => { |
| 104 return { rdfType: this.rdfType, pred: pred }; | |
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105 }); |
| 110 | 106 return { columnHeaders: headers, rowHeaders: subjs, rows: outputGrid }; |
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107 } |
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108 } |
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109 |
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110 function findTypesNeededForTables(viewConfig?: ViewConfig): UriSet { |
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111 const typesToGather: NamedNode[] = []; |
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112 if (viewConfig) { |
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113 viewConfig.tables.forEach((t: TableDesc) => { |
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114 typesToGather.push(t.primary); |
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115 }); |
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116 } |
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117 return Immutable.Set(typesToGather); |
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118 } |
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119 |
| 110 | 120 function findSubjectsWithTypes(graph: Store, typesToGather: UriSet): UriSet { |
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121 const subjectsToGather: NamedNode[] = []; |
| 110 | 122 const ft = typesToGather.toArray()[0]; |
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123 graph.forEach( |
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124 (q: Quad) => { |
| 110 | 125 if (q.object.equals(ft)) { |
| 126 //typesToGather.has(q.object as NamedNode)) { | |
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127 subjectsToGather.push(q.subject as NamedNode); |
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128 } |
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129 }, |
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130 null, |
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131 rdf.type, |
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132 null, |
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133 null |
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134 ); |
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135 return Immutable.Set(subjectsToGather); |
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136 } |
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137 |
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138 function freeStatmentsSection(stmts: Quad[]): FreeStatements { |
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139 const subjs: NamedNode[] = []; |
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140 stmts.forEach((q) => { |
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141 subjs.push(q.subject as NamedNode); |
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142 }); |
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143 return { |
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144 subjRows: uniqueSortedTerms(subjs).map((subj) => { |
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145 const preds: NamedNode[] = []; |
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146 let po = Immutable.Map<NamedNode, Term[]>(); |
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147 stmts.forEach((q) => { |
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148 if (q.subject.equals(subj)) { |
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149 const p = q.predicate as NamedNode; |
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150 preds.push(p); |
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151 po = po.set(p, po.get(p, [])); |
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152 po.get(p)?.push(q.object as Term); |
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153 } |
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154 }); |
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155 |
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156 const rows: PredRow[] = []; |
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157 uniqueSortedTerms(preds).forEach((p) => { |
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158 rows.push({ pred: p, objs: uniqueSortedTerms(po.get(p, [])) }); |
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159 }); |
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160 return { subj: subj, predRows: rows }; |
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161 }), |
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162 }; |
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163 } |
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164 |
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165 // The description of how this page should look: sections, tables, etc. |
| 103 | 166 export class Layout { |
| 167 constructor(public viewConfig?: ViewConfig) {} | |
| 168 plan(graph: Store): LayoutResult { | |
| 110 | 169 const typesToTable = findTypesNeededForTables(this.viewConfig); |
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170 |
| 110 | 171 const subjectsToTable = findSubjectsWithTypes(graph, typesToTable); |
| 103 | 172 const ungrouped: Quad[] = []; |
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173 const vc = this.viewConfig; |
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174 const table = |
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175 vc && vc.tables.length > 0 |
| 110 | 176 ? new AlignedTableBuilder(vc.tables[0].primary) //todo multiple tables |
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177 : null; |
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178 |
| 103 | 179 graph.forEach( |
| 180 (q: Quad) => { | |
| 110 | 181 let contains = false; |
| 182 subjectsToTable.forEach((s) => { | |
| 183 if (s.equals(q.subject)) { | |
| 184 contains = true; | |
| 185 } | |
| 186 }); | |
| 187 | |
| 188 // if (subjectsToTable.has(q.subject as NamedNode) && table) { // not working | |
| 189 if (contains && table) { | |
| 190 table.addQuad(q); | |
| 191 } else { | |
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192 ungrouped.push(q); |
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193 } |
| 103 | 194 }, |
| 195 null, | |
| 196 null, | |
| 197 null, | |
| 198 null | |
| 199 ); | |
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200 const res: LayoutResult = { sections: [] }; |
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201 if (table) { |
| 110 | 202 console.log("table value"); |
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203 res.sections.push(table.value()); |
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204 } |
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205 res.sections.push(freeStatmentsSection(ungrouped)); |
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206 return res; |
| 103 | 207 } |
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208 } |
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209 |
| 103 | 210 // // One table of rows with a common rdf:type. |
| 211 // export class MultiSubjsTypeBlockLayout { | |
| 212 // subjs: NamedNode[]; | |
| 213 // preds: NamedNode[]; | |
| 214 // graphCells: Immutable.Map<ISP, Immutable.Set<Term>>; | |
| 215 // constructor(graph: Store, byType: TypeToSubjs, table: TableDesc) { | |
| 216 // const subjSet = byType.get(table.primary); | |
| 217 // this.subjs = subjSet ? Array.from(subjSet) : []; | |
| 218 // this.subjs.sort(); | |
| 219 | |
| 220 // let preds = Immutable.Set<NamedNode>(); | |
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221 |
| 103 | 222 // this.graphCells = Immutable.Map<ISP, Immutable.Set<Term>>().withMutations( |
| 223 // (mutGraphCells) => { | |
| 224 // this.subjs.forEach((subj: NamedNode) => { | |
| 225 // graph.forEach( | |
| 226 // (q: Quad) => { | |
| 227 // if (!Util.isNamedNode(q.predicate)) { | |
| 228 // throw new Error(); | |
| 229 // } | |
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230 |
| 103 | 231 // const pred = q.predicate as NamedNode; |
| 232 // if (pred.equals(rdf.type)) { | |
| 233 // // the whole block is labeled with the type | |
| 234 // return; | |
| 235 // } | |
| 236 // preds = preds.add(pred); | |
| 237 // const cellKey = this.makeCellKey(subj, pred); | |
| 238 // mutGraphCells.set( | |
| 239 // cellKey, | |
| 240 // mutGraphCells.get(cellKey, Immutable.Set<Term>()).add(q.object) | |
| 241 // ); | |
| 242 // }, | |
| 243 // subj, | |
| 244 // null, | |
| 245 // null, | |
| 246 // null | |
| 247 // ); | |
| 248 // }); | |
| 249 // } | |
| 250 // ); | |
| 251 // this.preds = Array.from(preds); | |
| 252 // this.preds.splice(this.preds.indexOf(rdf.type), 1); | |
| 253 // // also pull out label, which should be used on 1st column | |
| 254 // this.preds.sort(); | |
| 255 // } | |
| 256 | |
| 257 // makeCellKey(subj: NamedNode, pred: NamedNode): ISP { | |
| 258 // return SP({ | |
| 259 // subj: subj, | |
| 260 // pred: pred, | |
| 261 // }); | |
| 262 // } | |
| 263 // } |