iht commented on code in PR #32060:
URL: https://github.com/apache/beam/pull/32060#discussion_r1755186097
##########
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();
+
+ PCollection<Solace.Record> withGlobalWindow =
+ records.apply("Global window", Window.into(new GlobalWindows()));
+
+ PCollection<KV<Integer, Solace.Record>> withShardKeys =
+ withGlobalWindow.apply(
+ "Add shard key",
+ ParDo.of(new
UnboundedSolaceWriter.AddShardKeyDoFn(getMaxNumOfUsedWorkers())));
+
+ String label =
+ getWriterType() == WriterType.STREAMING ? "Publish (streaming)" :
"Publish (batched)";
+
+ PCollectionTuple solaceOutput = withShardKeys.apply(label,
getWriterTransform(destinationFn));
+
+ SolaceOutput output;
+ if (getDeliveryMode() == DeliveryMode.PERSISTENT) {
+ PCollection<Solace.PublishResult> failedPublish =
solaceOutput.get(FAILED_PUBLISH_TAG);
+ PCollection<Solace.PublishResult> successfulPublish =
+ solaceOutput.get(SUCCESSFUL_PUBLISH_TAG);
+ output =
+ rewindow(
+ SolaceOutput.in(input.getPipeline(), failedPublish,
successfulPublish),
+ windowingStrategy);
+ } else {
+ LOG.info(
+ String.format(
+ "Solace.Write: omitting writer output because delivery mode is
%s",
+ getDeliveryMode()));
+ output = SolaceOutput.in(input.getPipeline(), null, null);
+ }
+
+ return output;
+ }
+
+ private ParDo.MultiOutput<KV<Integer, Solace.Record>,
Solace.PublishResult> getWriterTransform(
+ SerializableFunction<Solace.Record, Destination> destinationFn) {
+
+ ParDo.SingleOutput<KV<Integer, Solace.Record>, Solace.PublishResult>
writer =
+ ParDo.of(
+ getWriterType() == WriterType.STREAMING
+ ? new UnboundedStreamingSolaceWriter.WriterDoFn(
+ destinationFn,
+ checkNotNull(getSessionServiceFactory()),
+ getDeliveryMode(),
+ getDispatchMode(),
+ getNumberOfClientsPerWorker(),
+ getPublishLatencyMetrics())
+ : new UnboundedBatchedSolaceWriter.WriterDoFn(
+ destinationFn,
+ checkNotNull(getSessionServiceFactory()),
+ getDeliveryMode(),
+ getDispatchMode(),
+ getNumberOfClientsPerWorker(),
+ getPublishLatencyMetrics()));
+
+ return writer.withOutputTags(FAILED_PUBLISH_TAG,
TupleTagList.of(SUCCESSFUL_PUBLISH_TAG));
+ }
+
+ private SolaceOutput rewindow(
+ SolaceOutput solacePublishResult,
+ WindowingStrategy<Solace.PublishResult, BoundedWindow> strategy) {
+ PCollection<Solace.PublishResult> correct =
solacePublishResult.getSuccessfulPublish();
+ PCollection<Solace.PublishResult> failed =
solacePublishResult.getFailedPublish();
+
+ PCollection<Solace.PublishResult> correctWithWindow = null;
+ PCollection<Solace.PublishResult> failedWithWindow = null;
+
+ if (correct != null) {
+ correctWithWindow = applyOriginalWindow(correct, strategy, "Rewindow
correct");
+ }
+
+ if (failed != null) {
+ failedWithWindow = applyOriginalWindow(failed, strategy, "Rewindow
failed");
+ }
+
+ return SolaceOutput.in(
+ solacePublishResult.getPipeline(), failedWithWindow,
correctWithWindow);
+ }
+
+ private static PCollection<Solace.PublishResult> applyOriginalWindow(
+ PCollection<Solace.PublishResult> pcoll,
+ WindowingStrategy<Solace.PublishResult, BoundedWindow> strategy,
+ String label) {
+ Window<Solace.PublishResult> originalWindow =
captureWindowDetails(strategy);
+
+ if (strategy.getMode() ==
WindowingStrategy.AccumulationMode.ACCUMULATING_FIRED_PANES) {
+ originalWindow = originalWindow.accumulatingFiredPanes();
+ } else {
+ originalWindow = originalWindow.discardingFiredPanes();
+ }
+
+ return pcoll.apply(label, originalWindow);
+ }
+
+ private static Window<Solace.PublishResult> captureWindowDetails(
+ WindowingStrategy<Solace.PublishResult, BoundedWindow> strategy) {
+ return Window.<Solace.PublishResult>into(strategy.getWindowFn())
+ .withAllowedLateness(strategy.getAllowedLateness())
+ .withOnTimeBehavior(strategy.getOnTimeBehavior())
+ .withTimestampCombiner(strategy.getTimestampCombiner())
+ .triggering(strategy.getTrigger());
+ }
+
+ /**
+ * Called before running the Pipeline to verify this transform is fully
and correctly specified.
+ */
+ private void validateWriteTransform(boolean usingSolaceRecords) {
Review Comment:
Actually, scratch that, how can I make this method static if I need to
access non static members in the body of the fucntion?
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