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Added shutdown hook which cancels the async response. #736

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Merged
bnouwt merged 1 commit into from
Sep 26, 2025
Merged

Added shutdown hook which cancels the async response. #736

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7 changes: 5 additions & 2 deletions ...nector-rest-server/src/main/java/eu/knowledge/engine/rest/api/impl/RestKnowledgeBase.java
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,6 @@
import eu.knowledge.engine.smartconnector.api.SmartConnector;
import eu.knowledge.engine.smartconnector.api.SmartConnectorConfig;
import eu.knowledge.engine.smartconnector.impl.SmartConnectorBuilder;
import eu.knowledge.engine.smartconnector.impl.SmartConnectorImpl;
import jakarta.ws.rs.container.AsyncResponse;
import jakarta.ws.rs.core.Response;

Expand Down Expand Up @@ -236,6 +235,10 @@ protected boolean removeEldestEntry(Map.Entry<Integer, HandleRequest> eldest) {

if (scModel.getReasonerLevel() != null)
this.sc.setReasonerLevel(scModel.getReasonerLevel());

Runtime.getRuntime().addShutdownHook(new Thread(() -> {
this.stop();
}));
}

protected void tryProcessHandleRequestElseEnqueue(HandleRequest handleRequest) {
Expand Down Expand Up @@ -728,7 +731,7 @@ private void cancelAsyncResponse() {
var response = new ResponseMessage();
response.setMessageType("message");
response.setMessage(
"This long polling request is cancelled by the server because the Knowledge Base is stopping.");
"This long polling request is cancelled by the server because it or the Knowledge Base is stopping. Do not reinitiate this request.");
boolean cancelledSucceeded = this.asyncResponse.resume(Response.status(410).entity(response).build());

if (!cancelledSucceeded) {
Expand Down
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