spnettec commented on code in PR #818:
URL: https://github.com/apache/plc4x/pull/818#discussion_r1115453746
##########
plc4j/tools/connection-cache/src/main/java/org/apache/plc4x/java/utils/cache/LeasedPlcConnection.java:
##########
@@ -92,15 +102,139 @@ public PlcReadRequest.Builder readRequestBuilder() {
if(connection == null) {
throw new PlcRuntimeException("Error using leased connection after
returning it to the cache.");
}
- return connection.readRequestBuilder();
+ final PlcReadRequest.Builder innerBuilder =
connection.readRequestBuilder();
+ return new PlcReadRequest.Builder(){
+
+ @Override
+ public PlcReadRequest build() {
+ final PlcReadRequest innerPlcReadRequest =
innerBuilder.build();
+ return new PlcReadRequest(){
+
+ @Override
+ public CompletableFuture<? extends PlcReadResponse>
execute() {
+ CompletableFuture<? extends PlcReadResponse> future =
innerPlcReadRequest.execute();
+ final CompletableFuture<PlcReadResponse>
responseFuture = new CompletableFuture<>();
+ future.handle((plcReadResponse, throwable) -> {
+ if (plcReadResponse != null) {
+ responseFuture.complete(plcReadResponse);
+ } else {
+ try {
+ destroy();
+ } catch (Exception e) {
+ }
+
responseFuture.completeExceptionally(throwable);
Review Comment:
Invalid tag is not throw exception. It is normal return result. This is
unexcepted exception not caught by protocol. So this error is very serious
network error or protocol data error
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