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feat: Support Add/Remove notifications on containers

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This commit is contained in:
Joachim Van Herwegen
2023-02-07 13:06:19 +01:00
parent 9e1e65cdb9
commit 134237a80f
17 changed files with 326 additions and 83 deletions
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22
src/storage/DataAccessorBasedStore.ts
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@@ -324,7 +324,8 @@ export class DataAccessorBasedStore implements ResourceStore {
if (!this.identifierStrategy.isRootContainer(identifier)) {
const container = this.identifierStrategy.getParentContainer(identifier);
this.addActivityMetadata(changes, container, AS.terms.Update);
this.addContainerActivity(changes, container, false, identifier);
// Update modified date of parent
await this.updateContainerModifiedDate(container);
@@ -424,7 +425,7 @@ export class DataAccessorBasedStore implements ResourceStore {
const changes: ChangeMap = new IdentifierMap();
// Tranform representation data to quads and add them to the metadata object
// Transform representation data to quads and add them to the metadata object
const metadata = new RepresentationMetadata(subjectIdentifier);
const quads = await arrayifyStream(representation.data);
metadata.addQuads(quads);
@@ -482,7 +483,7 @@ export class DataAccessorBasedStore implements ResourceStore {
// No changes means the parent container exists and will be updated
if (changes.size === 0) {
this.addActivityMetadata(changes, parent, AS.terms.Update);
this.addContainerActivity(changes, parent, true, identifier);
}
// Parent container is also modified
@@ -710,4 +711,19 @@ export class DataAccessorBasedStore implements ResourceStore {
private addActivityMetadata(map: ChangeMap, id: ResourceIdentifier, activity: NamedNode): void {
map.set(id, new RepresentationMetadata(id, { [SOLID_AS.activity]: activity }));
}
/**
* Generates activity metadata specifically for Add/Remove events on a container.
* @param map - ChangeMap to update.
* @param id - Identifier of the container.
* @param add - If there is a resource being added (`true`) or removed (`false`).
* @param object - The object that is being added/removed.
*/
private addContainerActivity(map: ChangeMap, id: ResourceIdentifier, add: boolean, object: ResourceIdentifier): void {
const metadata = new RepresentationMetadata({
[SOLID_AS.activity]: add ? AS.terms.Add : AS.terms.Remove,
[AS.object]: namedNode(object.path),
});
map.set(id, metadata);
}
}

6
src/storage/MonitoringStore.ts
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@@ -9,7 +9,7 @@ import type { Conditions } from './Conditions';
import type { ResourceStore, ChangeMap } from './ResourceStore';
// The ActivityStream terms for which we emit an event
const knownActivities = [ AS.terms.Create, AS.terms.Delete, AS.terms.Update ];
const knownActivities = [ AS.terms.Add, AS.terms.Create, AS.terms.Delete, AS.terms.Remove, AS.terms.Update ];
/**
* Store that notifies listeners of changes to its source
@@ -57,8 +57,8 @@ export class MonitoringStore<T extends ResourceStore = ResourceStore>
for (const [ identifier, metadata ] of changes) {
const activity = metadata.get(SOLID_AS.terms.activity);
if (this.isKnownActivity(activity)) {
this.emit('changed', identifier, activity);
this.emit(activity.value, identifier);
this.emit('changed', identifier, activity, metadata);
this.emit(activity.value, identifier, metadata);
}
}