bzablocki commented on code in PR #32060:
URL: https://github.com/apache/beam/pull/32060#discussion_r1829647740
##########
sdks/java/io/solace/src/main/java/org/apache/beam/sdk/io/solace/SolaceIO.java:
##########
@@ -1026,8 +1057,180 @@ abstract static class Builder<T> {
@Override
public SolaceOutput expand(PCollection<T> input) {
- // TODO: will be sent in upcoming PR
- return SolaceOutput.in(input.getPipeline(), null, null);
+ Class<? super T> pcollClass =
checkNotNull(input.getTypeDescriptor()).getRawType();
+ boolean usingSolaceRecord =
+ pcollClass
+ .getTypeName()
+
.equals("org.apache.beam.sdk.io.solace.data.AutoValue_Solace_Record")
+ || pcollClass.isAssignableFrom(Solace.Record.class);
+
+ validateWriteTransform(usingSolaceRecord);
+
+ boolean usingDynamicDestinations = getDestination() == null;
+ SerializableFunction<Solace.Record, Destination> destinationFn;
+ if (usingDynamicDestinations) {
+ destinationFn = x ->
SolaceIO.convertToJcsmpDestination(checkNotNull(x.getDestination()));
+ } else {
+ // Constant destination for all messages (same topic or queue)
+ // This should not be non-null, as nulls would have been flagged by the
+ // validateWriteTransform method
+ destinationFn = x -> checkNotNull(getDestination());
+ }
+
+ @SuppressWarnings("unchecked")
+ PCollection<Solace.Record> records =
+ getFormatFunction() == null
+ ? (PCollection<Solace.Record>) input
+ : input.apply(
+ "Format records",
+ MapElements.into(TypeDescriptor.of(Solace.Record.class))
+ .via(checkNotNull(getFormatFunction())));
+
+ // Store the current window used by the input
+ PCollection<Solace.PublishResult> captureWindow =
+ records.apply(
+ "Capture window", ParDo.of(new
UnboundedSolaceWriter.RecordToPublishResultDoFn()));
+
+ @SuppressWarnings("unchecked")
+ WindowingStrategy<Solace.PublishResult, BoundedWindow> windowingStrategy
=
+ (WindowingStrategy<Solace.PublishResult, BoundedWindow>)
+ captureWindow.getWindowingStrategy();
+
Review Comment:
Scratch that, we've decided to output the results to a GlobalWindow. This
change is necessary because the output PCollection contains asynchronously
received acknowledgments. Since it's not practical to trace back to the
original message's timestamp, we can't apply the same windowing strategy.
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