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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | 13x 13x 13x 13x 13x 1891x 1891x 1891x 1891x 1565x 1565x 1565x 1565x 25080x 25080x 25080x 1565x 235081x 235081x 1891x 1891x 1891x 77105x 25032x 7819x 17150x 868x 22737x 3x 3496x 25032x 25032x 25032x 25032x 25032x 66070x 66070x 25032x 25032x 3x 3x 3x 3x 3x 3x 9x 9x 8x 3x 3x 7819x 7819x 7819x 7819x 7819x 5029x 5029x 6515x 6515x 6515x 337x 8268x 6178x 7819x 7819x 17150x 17150x 17150x 17150x 17150x 17096x 17096x 99293x 99293x 99293x 53207x 46086x 46086x 17150x 17150x 3496x 3496x 3496x 3496x 3496x 3446x 3446x 52167x 52167x 52167x 39433x 12734x 12734x 12734x 3496x 3496x 868x 868x 868x 868x 868x 22737x 22737x 22737x 22737x 22737x | import * as nodes from '../../../nodes'; import {fromBase64} from '@jsonjoy.com/base64/lib/fromBase64'; import {type ITimestampStruct, ts, ClockVector} from '../../../../json-crdt-patch/clock'; import {Model} from '../../../model'; import {SESSION} from '../../../../json-crdt-patch/constants'; import type * as types from './types'; export class Decoder { public decode({time, root}: types.JsonCrdtVerboseDocument): Model { const isServerClock = typeof time === 'number'; const doc = isServerClock ? Model.withServerClock(void 0, time) : Model.create(void 0, this.cClock(time)); this.cRoot(doc, root); return doc; } protected cClock(timestamps: types.JsonCrdtVerboseLogicalTimestamp[]): ClockVector { const [stamp] = timestamps; const vectorClock = new ClockVector(stamp[0], stamp[1]); const length = timestamps.length; for (let i = 1; i < length; i++) { const stamp = timestamps[i]; const [sessionId, time] = stamp; vectorClock.observe(ts(sessionId, time), 1); } return vectorClock; } protected cTs(stamp: types.JsonCrdtVerboseTimestamp): ITimestampStruct { const isServerClock = typeof stamp === 'number'; return isServerClock ? ts(SESSION.SERVER, stamp) : ts(stamp[0], stamp[1]); } protected cRoot(doc: Model, {value}: types.JsonCrdtVerboseVal): void { const val = value ? this.cNode(doc, value) : new nodes.ConNode(doc.clock.tick(0), null); const root = new nodes.RootNode(doc, val.id); doc.root = root; } protected cNode(doc: Model, node: types.JsonCrdtNode): nodes.JsonNode { switch (node.type) { case 'obj': return this.cObj(doc, node); case 'arr': return this.cArr(doc, node); case 'str': return this.cStr(doc, node); case 'val': return this.cVal(doc, node); case 'con': return this.cCon(doc, node); case 'vec': return this.cVec(doc, node); case 'bin': return this.cBin(doc, node); } throw new Error('UNKNOWN_NODE'); } protected cObj(doc: Model, node: types.JsonCrdtVerboseObj): nodes.ObjNode { const id = this.cTs(node.id); const obj = new nodes.ObjNode(doc, id); const map = node.map; const keys = Object.keys(map); for (const key of keys) { const keyNode = map[key]; obj.put(key, this.cNode(doc, keyNode).id); } doc.index.set(id, obj); return obj; } protected cVec(doc: Model, node: types.JsonCrdtVerboseVec): nodes.VecNode { const id = this.cTs(node.id); const obj = new nodes.VecNode(doc, id); const elements = obj.elements; const map = node.map; const length = map.length; for (let i = 0; i < length; i++) { const component = map[i]; if (!component) elements.push(undefined); else elements.push(this.cNode(doc, component).id); } doc.index.set(id, obj); return obj; } protected cArr(doc: Model, node: types.JsonCrdtVerboseArr): nodes.ArrNode { const id = this.cTs(node.id); const rga = new nodes.ArrNode(doc, id); const chunks = node.chunks; const length = chunks.length; if (length) { let i = 0; rga.ingest(length, () => { const c = chunks[i++]; const id = this.cTs(c.id); if (typeof (c as types.JsonCrdtVerboseTombstone).span === 'number') return new nodes.ArrChunk(id, (c as types.JsonCrdtVerboseTombstone).span, undefined); else { const ids = (c as types.JsonCrdtVerboseArrChunk).value.map((n) => this.cNode(doc, n).id); return new nodes.ArrChunk(id, ids.length, ids); } }); } doc.index.set(id, rga); return rga; } protected cStr(doc: Model, node: types.JsonCrdtVerboseStr): nodes.StrNode { const id = this.cTs(node.id); const rga = new nodes.StrNode(id); const chunks = node.chunks; const length = chunks.length; if (length) { let i = 0; rga.ingest(length, () => { const c = chunks[i++]; const id = this.cTs(c.id); if (typeof (c as types.JsonCrdtVerboseTombstone).span === 'number') return new nodes.StrChunk(id, (c as types.JsonCrdtVerboseTombstone).span, ''); else { const value = (c as types.JsonCrdtVerboseStrChunk).value; return new nodes.StrChunk(id, value.length, value); } }); } doc.index.set(id, rga); return rga; } protected cBin(doc: Model, node: types.JsonCrdtVerboseBin): nodes.BinNode { const id = this.cTs(node.id); const rga = new nodes.BinNode(id); const chunks = node.chunks; const length = chunks.length; if (length) { let i = 0; rga.ingest(length, () => { const c = chunks[i++]; const id = this.cTs(c.id); if (typeof (c as types.JsonCrdtVerboseTombstone).span === 'number') return new nodes.BinChunk(id, (c as types.JsonCrdtVerboseTombstone).span, undefined); else { const value = (c as types.JsonCrdtVerboseBinChunk).value; const buf = fromBase64(value); return new nodes.BinChunk(id, buf.length, buf); } }); } doc.index.set(id, rga); return rga; } protected cVal(doc: Model, node: types.JsonCrdtVerboseVal): nodes.ValNode { const id = this.cTs(node.id); const val = this.cNode(doc, node.value); const obj = new nodes.ValNode(doc, id, val.id); doc.index.set(id, obj); return obj; } protected cCon(doc: Model, node: types.JsonCrdtVerboseCon): nodes.ConNode { const id = this.cTs(node.id); const val = node.timestamp ? this.cTs(node.value as types.JsonCrdtVerboseLogicalTimestamp) : node.value; const obj = new nodes.ConNode(id, val); doc.index.set(id, obj); return obj; } } |