Github user amberarrow commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/273#discussion_r63356489
--- Diff:
library/src/main/java/com/datatorrent/lib/io/fs/AbstractSingleFileOutputOperator.java
---
@@ -39,10 +41,37 @@
@NotNull
protected String outputFileName;
+ /**
+ * partitionedFileName string format specifier
+ e.g. fileName_physicalPartionId -> %s_%d
+ */
+ private String partitionedFileNameformat = "%s_%d";
+
+ /**
+ * Derived name for file based on physicalPartitionId
+ */
+ private transient String partitionedFileName;
+
+ /**
+ * Physical partition id for the current partition.
+ */
+ private transient int physicalPartitionId;
+
+ /**
+ * Initializing current partition id, partitionedFileName etc.
{@inheritDoc}
+ */
+ @Override
+ public void setup(OperatorContext context)
--- End diff --
People have different preferences on this topic; my preference is a
separate flag but I'm OK either way.
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