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feat: Create new resources when patching

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This commit is contained in:
Joachim Van Herwegen
2020-12-07 16:48:30 +01:00
parent 07cd63bffa
commit 7011b766b4
2 changed files with 36 additions and 8 deletions
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25
src/storage/patch/SparqlUpdatePatchHandler.ts
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@@ -10,6 +10,7 @@ import { RepresentationMetadata } from '../../ldp/representation/RepresentationM
import type { ResourceIdentifier } from '../../ldp/representation/ResourceIdentifier';
import { getLoggerFor } from '../../logging/LogUtil';
import { INTERNAL_QUADS } from '../../util/ContentTypes';
import { NotFoundHttpError } from '../../util/errors/NotFoundHttpError';
import { NotImplementedHttpError } from '../../util/errors/NotImplementedHttpError';
import { guardStream } from '../../util/GuardedStream';
import type { ResourceLocker } from '../../util/locking/ResourceLocker';
@@ -82,15 +83,23 @@ export class SparqlUpdatePatchHandler extends PatchHandler {
*/
private async applyPatch(identifier: ResourceIdentifier, deletes: Algebra.Pattern[], inserts: Algebra.Pattern[]):
Promise<void> {
// Read the quads of the current representation
const quads = await this.source.getRepresentation(identifier, { type: [{ value: INTERNAL_QUADS, weight: 1 }]});
const store = new Store<BaseQuad>();
const importEmitter = store.import(quads.data);
await new Promise((resolve, reject): void => {
importEmitter.on('end', resolve);
importEmitter.on('error', reject);
});
this.logger.debug(`${store.size} quads in ${identifier.path}.`);
try {
// Read the quads of the current representation
const quads = await this.source.getRepresentation(identifier, { type: [{ value: INTERNAL_QUADS, weight: 1 }]});
const importEmitter = store.import(quads.data);
await new Promise((resolve, reject): void => {
importEmitter.on('end', resolve);
importEmitter.on('error', reject);
});
this.logger.debug(`${store.size} quads in ${identifier.path}.`);
} catch (error: unknown) {
// In case the resource does not exist yet we want to create it
if (!(error instanceof NotFoundHttpError)) {
throw error;
}
this.logger.debug(`Patching new resource ${identifier.path}.`);
}
// Apply the patch
store.removeQuads(deletes);