@comunica/bus-rdf-update-quads
Version:
A comunica bus for rdf-update-quads events.
59 lines • 2.75 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ActorRdfUpdateQuadsDestination = void 0;
exports.deskolemizeStream = deskolemizeStream;
exports.deskolemize = deskolemize;
const actor_optimize_query_operation_query_source_skolemize_1 = require("@comunica/actor-optimize-query-operation-query-source-skolemize");
const context_entries_1 = require("@comunica/context-entries");
const core_1 = require("@comunica/core");
const ActorRdfUpdateQuads_1 = require("./ActorRdfUpdateQuads");
function deskolemizeStream(dataFactory, stream, id) {
return stream?.map(quad => (0, actor_optimize_query_operation_query_source_skolemize_1.deskolemizeQuad)(dataFactory, quad, id));
}
function deskolemize(action) {
const dataFactory = action.context.getSafe(context_entries_1.KeysInitQuery.dataFactory);
const destination = action.context.get(context_entries_1.KeysRdfUpdateQuads.destination);
const id = action.context.get(context_entries_1.KeysQuerySourceIdentify.sourceIds)?.get(destination);
if (!id) {
return action;
}
return {
...action,
quadStreamInsert: deskolemizeStream(dataFactory, action.quadStreamInsert, id),
quadStreamDelete: deskolemizeStream(dataFactory, action.quadStreamDelete, id),
};
}
/**
* A base implementation for rdf-update-quads events
* that wraps around an {@link IQuadDestination}.
*
* @see IQuadDestination
*/
class ActorRdfUpdateQuadsDestination extends ActorRdfUpdateQuads_1.ActorRdfUpdateQuads {
async test(_action) {
return (0, core_1.passTestVoid)();
}
async run(action) {
const destination = await this.getDestination(action.context);
return await this.getOutput(destination, deskolemize(action));
}
/**
* Get the output of the given action on a destination.
* @param {IQuadDestination} destination A quad destination, possibly lazy.
* @param {IActionRdfUpdateQuads} action The action.
*/
async getOutput(destination, action) {
const execute = async () => {
await destination.update({ insert: action.quadStreamInsert, delete: action.quadStreamDelete });
await (action.deleteGraphs ?
destination.deleteGraphs(action.deleteGraphs.graphs, action.deleteGraphs.requireExistence, action.deleteGraphs.dropGraphs) :
Promise.resolve());
await (action.createGraphs ?
destination.createGraphs(action.createGraphs.graphs, action.createGraphs.requireNonExistence) :
Promise.resolve());
};
return { execute };
}
}
exports.ActorRdfUpdateQuadsDestination = ActorRdfUpdateQuadsDestination;
//# sourceMappingURL=ActorRdfUpdateQuadsDestination.js.map