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Finish the export functionality: move logic around a bit, add license information for reusers, wire the functionality as feature switch

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This commit is contained in:
Pieter Vander Vennet 2021-07-16 01:42:09 +02:00
parent 3001a563d2
commit abd7db100d
10 changed files with 98 additions and 65 deletions
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38
Logic/FeatureSource/FeatureSource.ts
View file

@ -1,9 +1,45 @@
import {UIEventSource} from "../UIEventSource";
import {Utils} from "../../Utils";
export default interface FeatureSource {
features: UIEventSource<{feature: any, freshness: Date}[]>;
features: UIEventSource<{ feature: any, freshness: Date }[]>;
/**
* Mainly used for debuging
*/
name: string;
}
export class FeatureSourceUtils {
/**
* Exports given featurePipeline as a geojson FeatureLists (downloads as a json)
* @param featurePipeline The FeaturePipeline you want to export
* @param options The options object
* @param options.metadata True if you want to include the MapComplete metadata, false otherwise
*/
public static extractGeoJson(featurePipeline: FeatureSource, options: { metadata?: boolean } = {}) {
let defaults = {
metadata: false,
}
options = Utils.setDefaults(options, defaults);
// Select all features, ignore the freshness and other data
let featureList: any[] = featurePipeline.features.data.map((feature) => feature.feature);
if (!options.metadata) {
for (let i = 0; i < featureList.length; i++) {
let feature = featureList[i];
for (let property in feature.properties) {
if (property[0] == "_") {
delete featureList[i]["properties"][property];
}
}
}
}
return {type: "FeatureCollection", features: featureList}
}
}

39
Logic/FeatureSource/GeoJsonExport.ts
View file

@ -1,39 +0,0 @@
import FeaturePipeline from "./FeaturePipeline";
import {Utils} from "../../Utils";
/**
* Exports given featurePipeline as a geojson FeatureLists (downloads as a json)
* @param featurePipeline The FeaturePipeline you want to export
* @param options The options object
* @param options.metadata True if you want to include the MapComplete metadata, false otherwise
*/
export function exportAsGeoJson(featurePipeline: FeaturePipeline, options: { metadata?: boolean} = {}) {
let defaults = {
metadata: false,
}
options = Utils.setDefaults(options, defaults);
// Select all features, ignore the freshness and other data
let featureList: JSON[] = featurePipeline ? featurePipeline.features.data.map((feature) => feature.feature) : ["I'm empty"];
/**
* Removes the metadata of MapComplete (all properties starting with an underscore)
* @param featureList JsonList containing features, output object
*/
function removeMetaData(featureList: JSON[]) {
for (let i=0; i < featureList.length; i++) {
let feature = featureList[i];
for (let property in feature.properties) {
if (property[0] == "_") {
delete featureList[i]["properties"][property];
}
}
}
}
if (!options.metadata) removeMetaData(featureList);
let geojson = {type: "FeatureCollection", features: featureList}
Utils.offerContentsAsDownloadableFile(JSON.stringify(geojson), "Geodata.json");
}