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Catch and send Cypher syntax errors to client as 400 response (#289). #4

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Catch and send Cypher syntax errors to client as 400 response (#289). #4

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7 changes: 7 additions & 0 deletions SciGraph-services/src/main/java/io/scigraph/services/resources/CypherUtilService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Logger;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.TimeUnit;
Expand Down Expand Up @@ -63,6 +64,8 @@
@Produces({MediaType.TEXT_PLAIN})
public class CypherUtilService extends BaseResource {

private static final Logger logger = Logger.getLogger(CypherUtilService.class.getName());

final private CypherUtil cypherUtil;
final private GraphDatabaseService graphDb;
final private CurieUtil curieUtil;
Expand Down Expand Up @@ -131,6 +134,10 @@ public Response execute(
} else {
return Response.ok(cypherUtil.execute(replacedStartCurie).resultAsString()).cacheControl(null).build();
}
} catch (QueryExecutionException e) {
String errorMsg = "QueryExecutionException: " + e.getMessage();
logger.warning(errorMsg);
return Response.status(400).entity(errorMsg).build();
} catch (TransactionTerminatedException e) {
return Response.ok("The query execution exceeds dbms.transaction.timeout configuration. " +
"Consider using the neo4j shell instead of this service.").build();
Expand Down