98 lines
No EOL
3.6 KiB
TypeScript
98 lines
No EOL
3.6 KiB
TypeScript
import FilteredLayer from "../../../Models/FilteredLayer";
|
|
import {FeatureSourceForLayer, Tiled} from "../FeatureSource";
|
|
import {UIEventSource} from "../../UIEventSource";
|
|
import Loc from "../../../Models/Loc";
|
|
import DynamicTileSource from "./DynamicTileSource";
|
|
import {Utils} from "../../../Utils";
|
|
import GeoJsonSource from "../Sources/GeoJsonSource";
|
|
import {BBox} from "../../BBox";
|
|
|
|
export default class DynamicGeoJsonTileSource extends DynamicTileSource {
|
|
|
|
private static whitelistCache = new Map<string, any>()
|
|
|
|
constructor(layer: FilteredLayer,
|
|
registerLayer: (layer: FeatureSourceForLayer & Tiled) => void,
|
|
state: {
|
|
locationControl: UIEventSource<Loc>
|
|
currentBounds: UIEventSource<BBox>
|
|
}) {
|
|
const source = layer.layerDef.source
|
|
if (source.geojsonZoomLevel === undefined) {
|
|
throw "Invalid layer: geojsonZoomLevel expected"
|
|
}
|
|
if (source.geojsonSource === undefined) {
|
|
throw "Invalid layer: geojsonSource expected"
|
|
}
|
|
|
|
let whitelist = undefined
|
|
if (source.geojsonSource.indexOf("{x}_{y}.geojson") > 0) {
|
|
|
|
const whitelistUrl = source.geojsonSource
|
|
.replace("{z}", "" + source.geojsonZoomLevel)
|
|
.replace("{x}_{y}.geojson", "overview.json")
|
|
.replace("{layer}", layer.layerDef.id)
|
|
|
|
if (DynamicGeoJsonTileSource.whitelistCache.has(whitelistUrl)) {
|
|
whitelist = DynamicGeoJsonTileSource.whitelistCache.get(whitelistUrl)
|
|
} else {
|
|
Utils.downloadJsonCached(whitelistUrl, 1000 * 60 * 60).then(
|
|
json => {
|
|
const data = new Map<number, Set<number>>();
|
|
for (const x in json) {
|
|
if (x === "zoom") {
|
|
continue
|
|
}
|
|
data.set(Number(x), new Set(json[x]))
|
|
}
|
|
console.log("The whitelist is", data, "based on ", json, "from", whitelistUrl)
|
|
whitelist = data
|
|
DynamicGeoJsonTileSource.whitelistCache.set(whitelistUrl, whitelist)
|
|
}
|
|
).catch(err => {
|
|
console.warn("No whitelist found for ", layer.layerDef.id, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
const blackList = (new Set<string>())
|
|
super(
|
|
layer,
|
|
source.geojsonZoomLevel,
|
|
(zxy) => {
|
|
if (whitelist !== undefined) {
|
|
const isWhiteListed = whitelist.get(zxy[1])?.has(zxy[2])
|
|
if (!isWhiteListed) {
|
|
console.debug("Not downloading tile", ...zxy, "as it is not on the whitelist")
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
const src = new GeoJsonSource(
|
|
layer,
|
|
zxy,
|
|
{
|
|
featureIdBlacklist: blackList
|
|
}
|
|
)
|
|
|
|
registerLayer(src)
|
|
return src
|
|
},
|
|
state
|
|
);
|
|
|
|
}
|
|
|
|
public static RegisterWhitelist(url: string, json: any) {
|
|
const data = new Map<number, Set<number>>();
|
|
for (const x in json) {
|
|
if (x === "zoom") {
|
|
continue
|
|
}
|
|
data.set(Number(x), new Set(json[x]))
|
|
}
|
|
DynamicGeoJsonTileSource.whitelistCache.set(url, data)
|
|
}
|
|
|
|
} |