kl0u commented on a change in pull request #9581: [FLINK-13864][streaming]:
Modify the StreamingFileSink Builder interface to allow for easier subclassing
of StreamingFileSink
URL: https://github.com/apache/flink/pull/9581#discussion_r321709238
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/functions/sink/filesystem/StreamingFileSink.java
##########
@@ -162,47 +162,54 @@ protected StreamingFileSink(
* @return The builder where the remaining of the configuration
parameters for the sink can be configured.
* In order to instantiate the sink, call {@link
RowFormatBuilder#build()} after specifying the desired parameters.
*/
- public static <IN> StreamingFileSink.BulkFormatBuilder<IN, String>
forBulkFormat(
+ public static <IN> StreamingFileSink.BulkFormatBuilder<IN, String, ?
extends BulkFormatBuilder<IN, String, ?>> forBulkFormat(
final Path basePath, final BulkWriter.Factory<IN>
writerFactory) {
return new StreamingFileSink.BulkFormatBuilder<>(basePath,
writerFactory, new DateTimeBucketAssigner<>());
}
/**
* The base abstract class for the {@link RowFormatBuilder} and {@link
BulkFormatBuilder}.
*/
- protected abstract static class BucketsBuilder<IN, BucketID> implements
Serializable {
+ protected abstract static class BucketsBuilder<IN, BucketID, T extends
BucketsBuilder<IN, BucketID, T>> implements Serializable {
private static final long serialVersionUID = 1L;
+ protected static final long DEFAULT_BUCKET_CHECK_INTERVAL = 60L
* 1000L;
+
+ @SuppressWarnings("unchecked")
+ protected T self() {
+ return (T) this;
+ }
+
abstract Buckets<IN, BucketID> createBuckets(final int
subtaskIndex) throws IOException;
}
/**
* A builder for configuring the sink for row-wise encoding formats.
*/
@PublicEvolving
- public static class RowFormatBuilder<IN, BucketID> extends
StreamingFileSink.BucketsBuilder<IN, BucketID> {
+ public static class RowFormatBuilder<IN, BucketID, T extends
RowFormatBuilder<IN, BucketID, T>> extends StreamingFileSink.BucketsBuilder<IN,
BucketID, T> {
private static final long serialVersionUID = 1L;
- private final long bucketCheckInterval;
+ protected long bucketCheckInterval;
Review comment:
This can be `private`
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